Linaro-mm-sig

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3643 discussions

Re: [PATCH] lib/scatterlist: fix sg_page_count and sg_dma_page_count

by Julian Orth

On Sun, Mar 8, 2026 at 7:08 PM Jason Gunthorpe <jgg(a)ziepe.ca> wrote: > > On Sun, Mar 08, 2026 at 02:55:27PM +0100, Julian Orth wrote: > > A user reported memory corruption in the Jay wayland compositor [1]. The > > corruption started when archlinux enabled > > CONFIG_TRANSPARENT_HUGEPAGE_SHMEM_HUGE_WITHIN_SIZE in kernel 6.19.5. > > > > The compositor uses udmabuf to upload memory from memfds to the GPU. > > When running an affected kernel, the following warnings are logged: > > > > a - addrs >= max_entries > > WARNING: drivers/gpu/drm/drm_prime.c:1089 at drm_prime_sg_to_dma_addr_array+0x86/0xc0, CPU#31: jay/1864 > > [...] > > Call Trace: > > <TASK> > > amdgpu_bo_move+0x188/0x800 [amdgpu 3b451640234948027c09e9b39e6520bc7e5471cf] > > > > Disabling the use of huge pages at runtime via > > /sys/kernel/mm/transparent_hugepage/shmem_enabled fixes the issue. > > > > udmabuf allocates a scatterlist with buffer_size/PAGE_SIZE entries. Each > > entry has a length of PAGE_SIZE. With huge pages disabled, it appears > > that sg->offset is always 0. With huge pages enabled, sg->offset is > > incremented by PAGE_SIZE until the end of the huge page. > > This was broken by 0c8b91ef5100 ("udmabuf: add back support for > mapping hugetlb pages") which switched from a working > sg_alloc_table_from_pages() to a messed up sg_set_pages loop: > > + for_each_sg(sg->sgl, sgl, ubuf->pagecount, i) > + sg_set_page(sgl, ubuf->pages[i], PAGE_SIZE, ubuf->offsets[i]); > [..] > + ubuf->offsets[*pgbuf] = subpgoff << PAGE_SHIFT; > > Which is just the wrong way to use the scatterlist API. > > This was later changed to sg_set_folio() which I'm also suspecting has > a bug, it should be setting page_link to the proper tail page because > as you observe page_offset must fall within 0 to PAGE_SIZE-1 to make > the iterator work. > > I think the whole design here in udmabuf makes very little sense. It > starts out with an actual list of folios then expands them to a per-4K > double array of folio/offset. This is nonsensical, if it wants to > build a way to direct index the mapping for mmap it should just build > itself a page * array like the code used to do and continue to use > sg_alloc_table_from_pages() which builds properly formed scatterlists. > > This would save memory, use the APIs properly and build a correct and > optimized scatterlist to boot. It uses vmf_insert_pfn() and > vm_map_ram() anyhow so it doesn't even use a folio :\ > > Here, a few mins of AI shows what I think udmabuf should look like. If > you wish to persue this please add my signed-off-by and handle testing > it and getting it merged. I reviewed it enough to see it was showing > what I wanted. I don't know enough about folios or udmabuf to efficiently work on this. If offset is supposed to be in [0, PAGE_SIZE-1], then my patch is incorrect and it's probably better if some of the udmabuf maintainers take a look at this. I've added them to CC. > > Jason > > diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c > index 94b8ecb892bb17..5d687860445137 100644 > --- a/drivers/dma-buf/udmabuf.c > +++ b/drivers/dma-buf/udmabuf.c > @@ -26,10 +26,10 @@ MODULE_PARM_DESC(size_limit_mb, "Max size of a dmabuf, in megabytes. Default is > > struct udmabuf { > pgoff_t pagecount; > - struct folio **folios; > + struct page **pages; > > /** > - * Unlike folios, pinned_folios is only used for unpin. > + * Unlike pages, pinned_folios is only used for unpin. > * So, nr_pinned is not the same to pagecount, the pinned_folios > * only set each folio which already pinned when udmabuf_create. > * Note that, since a folio may be pinned multiple times, each folio > @@ -41,7 +41,6 @@ struct udmabuf { > > struct sg_table *sg; > struct miscdevice *device; > - pgoff_t *offsets; > }; > > static vm_fault_t udmabuf_vm_fault(struct vm_fault *vmf) > @@ -55,8 +54,7 @@ static vm_fault_t udmabuf_vm_fault(struct vm_fault *vmf) > if (pgoff >= ubuf->pagecount) > return VM_FAULT_SIGBUS; > > - pfn = folio_pfn(ubuf->folios[pgoff]); > - pfn += ubuf->offsets[pgoff] >> PAGE_SHIFT; > + pfn = page_to_pfn(ubuf->pages[pgoff]); > > ret = vmf_insert_pfn(vma, vmf->address, pfn); > if (ret & VM_FAULT_ERROR) > @@ -73,8 +71,7 @@ static vm_fault_t udmabuf_vm_fault(struct vm_fault *vmf) > if (WARN_ON(pgoff >= ubuf->pagecount)) > break; > > - pfn = folio_pfn(ubuf->folios[pgoff]); > - pfn += ubuf->offsets[pgoff] >> PAGE_SHIFT; > + pfn = page_to_pfn(ubuf->pages[pgoff]); > > /** > * If the below vmf_insert_pfn() fails, we do not return an > @@ -109,22 +106,11 @@ static int mmap_udmabuf(struct dma_buf *buf, struct vm_area_struct *vma) > static int vmap_udmabuf(struct dma_buf *buf, struct iosys_map *map) > { > struct udmabuf *ubuf = buf->priv; > - struct page **pages; > void *vaddr; > - pgoff_t pg; > > dma_resv_assert_held(buf->resv); > > - pages = kvmalloc_objs(*pages, ubuf->pagecount); > - if (!pages) > - return -ENOMEM; > - > - for (pg = 0; pg < ubuf->pagecount; pg++) > - pages[pg] = folio_page(ubuf->folios[pg], > - ubuf->offsets[pg] >> PAGE_SHIFT); > - > - vaddr = vm_map_ram(pages, ubuf->pagecount, -1); > - kvfree(pages); > + vaddr = vm_map_ram(ubuf->pages, ubuf->pagecount, -1); > if (!vaddr) > return -EINVAL; > > @@ -146,22 +132,18 @@ static struct sg_table *get_sg_table(struct device *dev, struct dma_buf *buf, > { > struct udmabuf *ubuf = buf->priv; > struct sg_table *sg; > - struct scatterlist *sgl; > - unsigned int i = 0; > int ret; > > sg = kzalloc_obj(*sg); > if (!sg) > return ERR_PTR(-ENOMEM); > > - ret = sg_alloc_table(sg, ubuf->pagecount, GFP_KERNEL); > + ret = sg_alloc_table_from_pages(sg, ubuf->pages, ubuf->pagecount, 0, > + ubuf->pagecount << PAGE_SHIFT, > + GFP_KERNEL); > if (ret < 0) > goto err_alloc; > > - for_each_sg(sg->sgl, sgl, ubuf->pagecount, i) > - sg_set_folio(sgl, ubuf->folios[i], PAGE_SIZE, > - ubuf->offsets[i]); > - > ret = dma_map_sgtable(dev, sg, direction, 0); > if (ret < 0) > goto err_map; > @@ -207,12 +189,8 @@ static void unpin_all_folios(struct udmabuf *ubuf) > > static __always_inline int init_udmabuf(struct udmabuf *ubuf, pgoff_t pgcnt) > { > - ubuf->folios = kvmalloc_objs(*ubuf->folios, pgcnt); > - if (!ubuf->folios) > - return -ENOMEM; > - > - ubuf->offsets = kvzalloc_objs(*ubuf->offsets, pgcnt); > - if (!ubuf->offsets) > + ubuf->pages = kvmalloc_objs(*ubuf->pages, pgcnt); > + if (!ubuf->pages) > return -ENOMEM; > > ubuf->pinned_folios = kvmalloc_objs(*ubuf->pinned_folios, pgcnt); > @@ -225,8 +203,7 @@ static __always_inline int init_udmabuf(struct udmabuf *ubuf, pgoff_t pgcnt) > static __always_inline void deinit_udmabuf(struct udmabuf *ubuf) > { > unpin_all_folios(ubuf); > - kvfree(ubuf->offsets); > - kvfree(ubuf->folios); > + kvfree(ubuf->pages); > } > > static void release_udmabuf(struct dma_buf *buf) > @@ -344,8 +321,8 @@ static long udmabuf_pin_folios(struct udmabuf *ubuf, struct file *memfd, > ubuf->pinned_folios[nr_pinned++] = folios[cur_folio]; > > for (; subpgoff < fsize; subpgoff += PAGE_SIZE) { > - ubuf->folios[upgcnt] = folios[cur_folio]; > - ubuf->offsets[upgcnt] = subpgoff; > + ubuf->pages[upgcnt] = folio_page(folios[cur_folio], > + subpgoff >> PAGE_SHIFT); > ++upgcnt; > > if (++cur_pgcnt >= pgcnt) >

7 months, 1 week

[PATCH v2 0/2] dma-buf: heaps: Use page clearing helpers

by Linus Walleij

Use clear_pages() and clear_highpage() properly in the DMA heap allocator. Signed-off-by: Linus Walleij <linusw(a)kernel.org> --- Changes in v2: - Added a second patch to use the clear_highpage() helper. - Link to v1: https://lore.kernel.org/r/20260304-cma-heap-clear-pages-v1-1-6ff59da716d3@k… --- Linus Walleij (2): dma-buf: heaps: Clear CMA pages with clear_pages() dma-buf: heaps: Clear CMA highages using helper drivers/dma-buf/heaps/cma_heap.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) --- base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f change-id: 20260303-cma-heap-clear-pages-540f3ac9f734 Best regards, -- Linus Walleij <linusw(a)kernel.org>

7 months, 1 week

[syzbot] [media?] [dri?] KASAN: slab-use-after-free Read in dma_buf_fd

by syzbot

Hello, syzbot found the following issue on: HEAD commit: 5ee8dbf54602 Merge tag 'fsverity-for-linus' of git://git.k.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=143e4a02580000 kernel config: https://syzkaller.appspot.com/x/.config?x=2a019678b1a3a692 dashboard link: https://syzkaller.appspot.com/bug?extid=7f4987d0afb97dd090cb compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/8f3ca4731c70/disk-5ee8dbf5.raw… vmlinux: https://storage.googleapis.com/syzbot-assets/9e6d67fcdf59/vmlinux-5ee8dbf5.… kernel image: https://storage.googleapis.com/syzbot-assets/dd6699ad586c/bzImage-5ee8dbf5.… IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+7f4987d0afb97dd090cb(a)syzkaller.appspotmail.com ================================================================== BUG: KASAN: slab-use-after-free in __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:132 [inline] BUG: KASAN: slab-use-after-free in _raw_spin_lock_irqsave+0x40/0x60 kernel/locking/spinlock.c:162 Read of size 1 at addr ffff888034d9c068 by task syz.6.794/10028 CPU: 1 UID: 0 PID: 10028 Comm: syz.6.794 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Call Trace: <TASK> dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xba/0x230 mm/kasan/report.c:482 kasan_report+0x117/0x150 mm/kasan/report.c:595 __kasan_check_byte+0x2a/0x40 mm/kasan/common.c:574 kasan_check_byte include/linux/kasan.h:402 [inline] lock_acquire+0x79/0x2e0 kernel/locking/lockdep.c:5842 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:132 [inline] _raw_spin_lock_irqsave+0x40/0x60 kernel/locking/spinlock.c:162 rt_mutex_slowunlock+0xbf/0x8b0 kernel/locking/rtmutex.c:1417 spin_unlock include/linux/spinlock_rt.h:109 [inline] class_spinlock_destructor include/linux/spinlock.h:586 [inline] dma_buf_fd+0x189/0x370 drivers/dma-buf/dma-buf.c:796 vb2_core_expbuf+0x37e/0x620 drivers/media/common/videobuf2/videobuf2-core.c:2471 __video_do_ioctl+0x88c/0xc50 drivers/media/v4l2-core/v4l2-ioctl.c:3132 video_usercopy+0x876/0x14b0 drivers/media/v4l2-core/v4l2-ioctl.c:3474 v4l2_ioctl+0x190/0x1e0 drivers/media/v4l2-core/v4l2-dev.c:366 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xff/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa4633cc799 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa46161e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fa463645fa0 RCX: 00007fa4633cc799 RDX: 0000200000000040 RSI: 00000000c0405610 RDI: 0000000000000004 RBP: 00007fa463462bd9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa463646038 R14: 00007fa463645fa0 R15: 00007ffe4429d3d8 </TASK> Allocated by task 10028: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415 kasan_kmalloc include/linux/kasan.h:263 [inline] __do_kmalloc_node mm/slub.c:5238 [inline] __kmalloc_noprof+0x3e7/0x7b0 mm/slub.c:5250 kmalloc_noprof include/linux/slab.h:954 [inline] kzalloc_noprof include/linux/slab.h:1188 [inline] dma_buf_export+0x3ba/0xb10 drivers/dma-buf/dma-buf.c:739 vb2_vmalloc_get_dmabuf+0x10e/0x210 drivers/media/common/videobuf2/videobuf2-vmalloc.c:352 vb2_core_expbuf+0x314/0x620 drivers/media/common/videobuf2/videobuf2-core.c:2461 __video_do_ioctl+0x88c/0xc50 drivers/media/v4l2-core/v4l2-ioctl.c:3132 video_usercopy+0x876/0x14b0 drivers/media/v4l2-core/v4l2-ioctl.c:3474 v4l2_ioctl+0x190/0x1e0 drivers/media/v4l2-core/v4l2-dev.c:366 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xff/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 10031: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584 poison_slab_object mm/kasan/common.c:253 [inline] __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:2692 [inline] slab_free mm/slub.c:6143 [inline] kfree+0x1c1/0x6c0 mm/slub.c:6461 __dentry_kill+0x211/0x5e0 fs/dcache.c:675 finish_dput+0xc9/0x480 fs/dcache.c:879 __fput+0x6a3/0xa90 fs/file_table.c:477 task_work_run+0x1d9/0x270 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline] do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff888034d9c000 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 104 bytes inside of freed 1024-byte region [ffff888034d9c000, ffff888034d9c400) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x34d98 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0x80000000000040(head|node=0|zone=1) page_type: f5(slab) raw: 0080000000000040 ffff88813fe1cdc0 dead000000000100 dead000000000122 raw: 0000000000000000 0000000800100010 00000000f5000000 0000000000000000 head: 0080000000000040 ffff88813fe1cdc0 dead000000000100 dead000000000122 head: 0000000000000000 0000000800100010 00000000f5000000 0000000000000000 head: 0080000000000003 ffffea0000d36601 00000000ffffffff 00000000ffffffff head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000008 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 6221, tgid 6216 (syz.3.71), ts 173025510293, free_ts 172769017733 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1889 prep_new_page mm/page_alloc.c:1897 [inline] get_page_from_freelist+0x28bb/0x2950 mm/page_alloc.c:3962 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5250 alloc_slab_page mm/slub.c:3269 [inline] allocate_slab+0x77/0x660 mm/slub.c:3458 new_slab mm/slub.c:3516 [inline] refill_objects+0x334/0x3c0 mm/slub.c:7153 refill_sheaf mm/slub.c:2818 [inline] __pcs_replace_empty_main+0x328/0x5f0 mm/slub.c:4592 alloc_from_pcs mm/slub.c:4695 [inline] slab_alloc_node mm/slub.c:4829 [inline] __kmalloc_cache_noprof+0x44e/0x690 mm/slub.c:5353 kmalloc_noprof include/linux/slab.h:950 [inline] kzalloc_noprof include/linux/slab.h:1188 [inline] snd_seq_oss_open+0x125/0xfc0 sound/core/seq/oss/seq_oss_init.c:171 odev_open+0x67/0xd0 sound/core/seq/oss/seq_oss.c:128 chrdev_open+0x4d0/0x5f0 fs/char_dev.c:411 do_dentry_open+0x83d/0x13e0 fs/open.c:949 vfs_open+0x3b/0x350 fs/open.c:1081 do_open fs/namei.c:4671 [inline] path_openat+0x2e43/0x38a0 fs/namei.c:4830 do_file_open+0x23e/0x4a0 fs/namei.c:4859 do_sys_openat2+0x113/0x200 fs/open.c:1366 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1383 page last free pid 6219 tgid 6219 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1433 [inline] __free_frozen_pages+0xfe3/0x1170 mm/page_alloc.c:2978 __slab_free+0x24f/0x2a0 mm/slub.c:5551 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4515 [inline] slab_alloc_node mm/slub.c:4844 [inline] kmem_cache_alloc_noprof+0x33b/0x680 mm/slub.c:4851 vm_area_dup+0x2b/0x670 mm/vma_init.c:123 __split_vma+0x1e4/0xa30 mm/vma.c:513 split_vma mm/vma.c:596 [inline] vma_modify+0x94b/0x1f00 mm/vma.c:1672 vma_modify_flags+0x24b/0x330 mm/vma.c:1700 mprotect_fixup+0x47a/0xa80 mm/mprotect.c:756 do_mprotect_pkey+0x8ab/0xcd0 mm/mprotect.c:930 __do_sys_mprotect mm/mprotect.c:951 [inline] __se_sys_mprotect mm/mprotect.c:948 [inline] __x64_sys_mprotect+0x80/0x90 mm/mprotect.c:948 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Memory state around the buggy address: ffff888034d9bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888034d9bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888034d9c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888034d9c080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888034d9c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller(a)googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup

7 months, 1 week

[PATCH] dma-buf: heaps: Clear CMA pages with clear_pages()

by Linus Walleij

As of commit 62a9f5a85b98 "mm: introduce clear_pages() and clear_user_pages()" we can clear a range of pages with a potentially assembly-optimized call. Instead of using a memset, use this helper to clear the whole range of pages from the CMA allocation. Signed-off-by: Linus Walleij <linusw(a)kernel.org> --- drivers/dma-buf/heaps/cma_heap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma-buf/heaps/cma_heap.c b/drivers/dma-buf/heaps/cma_heap.c index bd3370b9a3f6..f0bacf25ed9d 100644 --- a/drivers/dma-buf/heaps/cma_heap.c +++ b/drivers/dma-buf/heaps/cma_heap.c @@ -343,7 +343,7 @@ static struct dma_buf *cma_heap_allocate(struct dma_heap *heap, nr_clear_pages--; } } else { - memset(page_address(cma_pages), 0, size); + clear_pages(page_address(cma_pages), pagecount); } buffer->pages = kmalloc_objs(*buffer->pages, pagecount); --- base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f change-id: 20260303-cma-heap-clear-pages-540f3ac9f734 Best regards, -- Linus Walleij <linusw(a)kernel.org>

7 months, 1 week

[PATCH v3 00/12] vfs: change inode->i_ino from unsigned long to u64

by Jeff Layton

7 months, 1 week

[PATCH v2 00/12] media: stm32: dcmi: stability & performance enhancements

by Alain Volmat

This series improve stability of the capture by fixing the handling of the overrun which was leading to captured frame corruption. Locking within the driver is also simplified and the way DMA is handled is reworked allowing to avoid having a specific handling for the JPEG data. Performances of capture can now be increased via the usage of a DMA->MDMA chaining which allows for capture of higher resolution / framerate. Signed-off-by: Alain Volmat <alain.volmat(a)foss.st.com> --- Changes in v2: - Fix pm_sleep_ptr -> pm_ptr to avoid unused function warning - Fix typo / remove useless comment in binding - Link to v1: https://lore.kernel.org/r/20251218-stm32-dcmi-dma-chaining-v1-0-39948ca6cbf… --- Alain Volmat (12): media: stm32: dcmi: Switch from __maybe_unused to pm_ptr() media: stm32: dcmi: perform dmaengine_slave_config at probe media: stm32: dcmi: only create dma descriptor once at buf_prepare media: stm32: dcmi: stop the dma transfer on overrun media: stm32: dcmi: rework spin_lock calls media: stm32: dcmi: perform all dma handling within irq_thread media: stm32: dcmi: use dmaengine_terminate_async in irq context media: stm32: dcmi: continuous mode capture in JPEG dt-bindings: media: st: dcmi: add DMA-MDMA chaining properties media: stm32: dcmi: addition of DMA-MDMA chaining support ARM: dts: stm32: add sram node within stm32mp151.dtsi ARM: dts: stm32: enable DCMI DMA-MDMA chaining on stm32mp157c-ev1.dts .../devicetree/bindings/media/st,stm32-dcmi.yaml | 11 +- arch/arm/boot/dts/st/stm32mp151.dtsi | 8 + arch/arm/boot/dts/st/stm32mp157c-ev1.dts | 15 + drivers/media/platform/st/stm32/stm32-dcmi.c | 475 +++++++++++++-------- 4 files changed, 341 insertions(+), 168 deletions(-) --- base-commit: f7231cff1f3ff8259bef02dc4999bc132abf29cf change-id: 20251213-stm32-dcmi-dma-chaining-9ea1da83007d Best regards, -- Alain Volmat <alain.volmat(a)foss.st.com>

7 months, 2 weeks

[RFC PATCH 2/7] virtio: use pr_debug_ratelimited to avoid flooding

by Jim Cromie

When I test dynamic-debug's static-key toggling performance in a virtme-ng session, it is too easy to create an enormous flood of printks to the console. #> echo +p > /proc/dynamic_debug/control #> echo -p > /proc/dynamic_debug/control Now theres no "good reason" to shoot your own foot, but this is also easy to fix, by ratelimiting the sources of the flood. I don't think theres a loss of utility to virtio. Example console output is below the snip. For this test-case, ratelimiting suppresses >900k callbacks. It also allows this simple load test for the static-key toggling performance in a following patch. Signed-off-by: Jim Cromie <jim.cromie(a)gmail.com> --- root@drm-misc-fixes-2026-02-26-80-g9a2f253ad689:/home/jimc/projects/lx/wk-D/b0-dd# ddcmdq -p [ 619.868567] dyndbg: query 0: "-p" mod:* Delta-CAL (IPI): 71 - above is a noop baseline. root@drm-misc-fixes-2026-02-26-80-g9a2f253ad689:/home/jimc/projects/lx/wk-D/b0-dd# ddcmdq +p [ 648.876520] dyndbg: query 0: "+p" mod:* [ 648.878263] dyndbg: match on module: led_class [ 648.878350] dyndbg: match on module: probe [ 648.878474] dyndbg: match on module: pci [ 648.878636] dyndbg: match on module: pci_driver [ 648.878743] dyndbg: match on module: irq [ 648.878845] dyndbg: match on module: setup_bus [ 648.879032] dyndbg: match on module: pcieportdrv [ 648.879139] dyndbg: match on module: bwctrl [ 648.879197] dyndbg: match on module: aspm [ 648.879241] dyndbg: match on module: slot [ 648.879328] dyndbg: match on module: pci_acpi [ 648.879431] dyndbg: match on module: quirks [ 648.879521] dyndbg: match on module: pci_hotplug [ 648.879576] dyndbg: match on module: vgaarb [ 648.879710] dyndbg: match on module: backlight [ 648.879826] dyndbg: match on module: fb [ 648.879900] dyndbg: match on module: tables [ 648.880012] dyndbg: match on module: acpi [ 648.880977] dyndbg: match on module: ac [ 648.881021] dyndbg: match on module: button [ 648.881097] dyndbg: match on module: fan [ 648.881196] dyndbg: match on module: video [ 648.881295] dyndbg: match on module: processor [ 648.881558] dyndbg: match on module: thermal_lib [ 648.881671] dyndbg: match on module: thermal [ 648.881784] dyndbg: match on module: srat [ 648.881860] dyndbg: match on module: battery [ 648.881938] dyndbg: match on module: acpi_x86 [ 648.882088] dyndbg: match on module: pnp [ 648.882219] dyndbg: match on module: dmaengine [ 648.882351] dyndbg: match on module: virt_dma [ 648.882429] dyndbg: match on module: acpi_dma [ 648.882518] dyndbg: match on module: dw_dmac_core [ 648.882619] dyndbg: match on module: virtio_ring [ 648.882833] dyndbg: match on module: tty_io [ 648.882835] virtqueue_get_buf_ctx_split: 852672 callbacks suppressed [ 648.882836] No more buffers in queue [ 648.882837] virtqueue_add_split: 4962 callbacks suppressed [ 648.882838] Added buffer head 0 to 00000000531af360 [ 648.882842] No more buffers in queue [ 648.882843] No more buffers in queue [ 648.882843] No more buffers in queue [ 648.882844] No more buffers in queue [ 648.882844] No more buffers in queue [ 648.882845] No more buffers in queue [ 648.882845] No more buffers in queue [ 648.882846] No more buffers in queue [ 648.882846] No more buffers in queue [ 648.882857] Added buffer head 0 to 00000000531af360 [ 648.882869] Added buffer head 0 to 00000000531af360 [ 648.882874] vring_interrupt: 88637 callbacks suppressed [ 648.882876] virtqueue interrupt with no work for 00000000e20c0e9d [ 648.882882] Added buffer head 0 to 00000000531af360 [ 648.882899] Added buffer head 0 to 00000000531af360 [ 648.882909] Added buffer head 0 to 00000000531af360 [ 648.882919] Added buffer head 0 to 00000000531af360 [ 648.882930] Added buffer head 0 to 00000000531af360 [ 648.882941] Added buffer head 0 to 00000000531af360 [ 648.882951] Added buffer head 0 to 00000000531af360 [ 648.883860] virtqueue interrupt with no work for 00000000531af360 [ 648.883920] virtqueue interrupt with no work for 0000000088284d45 [ 648.883980] virtqueue interrupt with no work for 000000006b8c4aa3 [ 648.884033] virtqueue interrupt with no work for 00000000f205a9b7 [ 648.884085] virtqueue interrupt with no work for 0000000021930e68 [ 648.884138] virtqueue interrupt with no work for 0000000081dad94c [ 648.884190] virtqueue interrupt with no work for 0000000097d16d2d [ 648.884243] virtqueue interrupt with no work for 00000000b4539010 [ 648.884296] virtqueue interrupt with no work for 00000000ac870038 [ 648.884418] dyndbg: match on module: tty_jobctrl [ 648.884476] dyndbg: match on module: vt_ioctl [ 648.884528] dyndbg: match on module: serial_base [ 648.884625] dyndbg: match on module: 8250 [ 648.884698] dyndbg: match on module: 8250_base [ 648.884795] dyndbg: match on module: 8250_exar [ 648.884856] dyndbg: match on module: 8250_pci [ 648.884962] dyndbg: match on module: 8250_pericom [ 648.885014] dyndbg: match on module: virtio_console [ 648.885091] dyndbg: match on module: iommu [ 648.885132] dyndbg: match on module: init [ 648.885174] dyndbg: match on module: ppr [ 648.885216] dyndbg: match on module: iommu [ 648.885256] dyndbg: match on module: dmar [ 648.885334] dyndbg: match on module: iommu [ 648.885419] dyndbg: match on module: virtio_iommu [ 648.885481] dyndbg: match on module: drm [ 648.885577] dyndbg: match on module: ttm [ 648.885651] dyndbg: match on module: component [ 648.885756] dyndbg: match on module: core [ 648.885979] dyndbg: match on module: bus [ 648.886081] dyndbg: match on module: dd [ 648.886238] dyndbg: match on module: syscore [ 648.886339] dyndbg: match on module: class [ 648.886429] dyndbg: match on module: platform [ 648.886519] dyndbg: match on module: faux [ 648.886567] dyndbg: match on module: main [ 648.886664] dyndbg: match on module: wakeup [ 648.886765] dyndbg: match on module: firmware_class [ 648.886925] dyndbg: match on module: regmap [ 648.886971] dyndbg: match on module: regcache [ 648.887089] dyndbg: match on module: regcache_flat [ 648.887142] dyndbg: match on module: regmap_debugfs [ 648.887195] dyndbg: match on module: mei [ 648.887914] dyndbg: match on module: mei_me [ 648.888149] dyndbg: match on module: dax [ 648.888267] dyndbg: match on module: dma_buf [ 648.888322] dyndbg: match on module: scsi_mod [ 648.888413] dyndbg: match on module: virtio_scsi [ 648.888486] dyndbg: match on module: libata [ 648.888736] dyndbg: match on module: ahci [ 648.888816] dyndbg: match on module: libahci [ 648.888895] dyndbg: match on module: ata_piix [ 648.888960] dyndbg: match on module: pata_amd [ 648.889050] dyndbg: match on module: pata_oldpiix [ 648.889124] dyndbg: match on module: pata_sch [ 648.889172] dyndbg: match on module: mdio_bus [ 648.889229] dyndbg: match on module: libphy [ 648.889303] dyndbg: match on module: realtek [ 648.889395] dyndbg: match on module: fwnode_mdio [ 648.889468] dyndbg: match on module: virtio_net [ 648.889697] dyndbg: match on module: pcmcia_core [ 648.889848] dyndbg: match on module: pcmcia [ 648.890263] dyndbg: match on module: pci_quirks [ 648.890322] dyndbg: match on module: i8042 [ 648.890355] dyndbg: match on module: libps2 [ 648.890441] dyndbg: match on module: input_core [ 648.890546] dyndbg: match on module: ff_memless [ 648.890670] dyndbg: match on module: atkbd [ 648.890724] dyndbg: match on module: psmouse [ 648.890981] dyndbg: match on module: rtc_core [ 648.891135] dyndbg: match on module: rtc_cmos [ 648.891242] dyndbg: match on module: i2c_boardinfo [ 648.891303] dyndbg: match on module: i2c_core [ 648.891519] dyndbg: match on module: i2c_smbus [ 648.891624] dyndbg: match on module: i2c_i801 [ 648.891757] dyndbg: match on module: pps_core [ 648.891925] dyndbg: match on module: power_supply [ 648.892085] dyndbg: match on module: hwmon [ 648.892129] dyndbg: match on module: thermal_sys [ 648.892260] dyndbg: match on module: therm_throt [ 648.892315] dyndbg: match on module: md_mod [ 648.892570] dyndbg: match on module: dm_mod [ 648.892696] dyndbg: match on module: sysfs [ 648.892741] dyndbg: match on module: dmi_scan [ 648.892787] dyndbg: match on module: qemu_fw_cfg [ 648.892889] dyndbg: match on module: esrt [ 648.892935] dyndbg: match on module: mailbox [ 648.893006] dyndbg: match on module: pcc [ 648.893051] dyndbg: match on module: nvmem_core [ 648.893103] dyndbg: match on module: snd [ 648.893191] dyndbg: match on module: snd_timer [ 648.893249] dyndbg: match on module: snd_pcm [ 648.893356] dyndbg: match on module: snd_seq [ 648.893514] dyndbg: match on module: snd_intel8x0 [ 648.893572] dyndbg: match on module: snd_ac97_codec [ 648.893667] dyndbg: match on module: snd_hda_core [ 648.893867] dyndbg: match on module: snd_intel_dspcfg [ 648.894017] dyndbg: match on module: snd_intel_sdw_acpi [ 648.894131] dyndbg: match on module: snd_hda_codec [ 648.894336] dyndbg: match on module: snd_hda_codec_realtek_lib [ 648.894479] dyndbg: match on module: snd_hda_codec_alc269 [ 648.894585] dyndbg: match on module: snd_hda_scodec_component [ 648.894655] dyndbg: match on module: snd_hda_codec_generic [ 648.894775] dyndbg: match on module: snd_hda_intel [ 648.894939] dyndbg: match on module: sock [ 648.894987] dyndbg: match on module: dev [ 648.895119] dyndbg: match on module: sch_api [ 648.895174] dyndbg: match on module: route [ 648.895215] dyndbg: match on module: ip_fragment [ 648.895264] dyndbg: match on module: ip_output [ 648.895313] dyndbg: match on module: tcp [ 648.895350] dyndbg: match on module: tcp_input [ 648.895468] dyndbg: match on module: tcp_output [ 648.895575] dyndbg: match on module: tcp_timer [ 648.895634] dyndbg: match on module: tcp_ipv4 [ 648.895687] dyndbg: match on module: tcp_cong [ 648.895743] dyndbg: match on module: tcp_fastopen [ 648.895796] dyndbg: match on module: tcp_recovery [ 648.895854] dyndbg: match on module: udp [ 648.895951] dyndbg: match on module: arp [ 648.895994] dyndbg: match on module: icmp [ 648.896096] dyndbg: match on module: devinet [ 648.896151] dyndbg: match on module: fib_trie [ 648.896250] dyndbg: match on module: ping [ 648.896409] dyndbg: match on module: sysctl_net_ipv4 [ 648.896505] dyndbg: match on module: ipconfig [ 648.896567] dyndbg: match on module: tcp_cubic [ 648.896625] dyndbg: match on module: ip6_checksum [ 648.896718] dyndbg: match on module: sysctl_net [ 648.896832] dyndbg: match on module: i386 [ 648.896886] dyndbg: match on module: mmconfig_shared [ 648.896944] dyndbg: match on module: fixup [ 648.897029] dyndbg: match on module: acpi [ 648.897087] dyndbg: match on module: irq [ 648.897185] dyndbg: match on module: decompress [ 648.897253] dyndbg: match on module: kobject [ 648.897366] dyndbg: match on module: kobject_uevent [ 648.897478] dyndbg: applied queued updates to 1900 sites in total [ 648.897586] applying 1879 queued jump_labels [ 648.898378] virtqueue callback for 00000000b8493952 (000000004941ab6e) [ 648.898493] virtio_fs_send_req: opcode 5 unique 0x45a0 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.898493] virtio_fs_send_req: opcode 5 unique 0x459e nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.898582] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.898752] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.898905] virtio_fs_send_req: opcode 5 unique 0x45a2 nodeid 0x2f2 in.len 40 out.len 4095 queue_id 1 [ 648.898912] virtio_fs_send_req: opcode 5 unique 0x45a4 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.899066] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.899183] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.899276] virtio_fs_send_req: opcode 5 unique 0x45a6 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.899281] virtio_fs_send_req: opcode 5 unique 0x45a8 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.899413] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.899528] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.899608] virtio_fs_send_req: opcode 5 unique 0x45ac nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.899608] virtio_fs_send_req: opcode 5 unique 0x45aa nodeid 0x2f2 in.len 40 out.len 4095 queue_id 1 [ 648.899711] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.899850] virtqueue callback for 00000000531af360 (00000000df837aee) [ 648.899957] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.899989] virtio_fs_send_req: opcode 5 unique 0x45ae nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.899992] virtio_fs_send_req: opcode 5 unique 0x45b0 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.900080] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.900084] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.900520] virtio_fs_send_req: opcode 5 unique 0x45b2 nodeid 0x2f2 in.len 40 out.len 4095 queue_id 1 [ 648.900557] virtio_fs_send_req: opcode 5 unique 0x45b4 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.900725] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.901958] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.902056] virtio_fs_send_req: opcode 5 unique 0x45b6 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.902069] virtio_fs_send_req: opcode 14 unique 0x45b8 nodeid 0x245 in.len 48 out.len 16 queue_id 1 [ 648.902292] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.902409] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.902506] virtio_fs_send_req: opcode 5 unique 0x45ba nodeid 0x2f2 in.len 40 out.len 4095 queue_id 1 [ 648.902507] overlayfs: open(00000000cc553079[bin/grep/l], 0100040) -> (00000000ebc0a9b2, 01100040) [ 648.902707] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.902793] virtio_fs_send_req: opcode 5 unique 0x45bc nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.902861] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.903071] virtio_fs_send_req: opcode 14 unique 0x45be nodeid 0x28 in.len 48 out.len 16 queue_id 1 [ 648.903072] virtio_fs_send_req: opcode 5 unique 0x45c0 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.903325] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.903329] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.903546] overlayfs: open(0000000044db1ed7[lib64/ld-linux-x86-64.so.2/l], 0100040) -> (00000000ce7f73a3, 01100040) [ 648.903629] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.903800] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.903896] virtio_fs_send_req: opcode 5 unique 0x45c2 nodeid 0x2f2 in.len 40 out.len 4095 queue_id 1 [ 648.903921] virtio_fs_send_req: opcode 14 unique 0x45c4 nodeid 0x2b in.len 48 out.len 16 queue_id 1 [ 648.904123] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.904252] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.904382] overlayfs: open(0000000044db1ed7[/ld.so.cache/l], 0100000) -> (00000000a546e0ec, 01100000) [ 648.904421] virtio_fs_send_req: opcode 5 unique 0x45c6 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.904521] virtio_fs_send_req: opcode 25 unique 0x45c8 nodeid 0x2b in.len 64 out.len 0 queue_id 1 [ 648.904698] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.904849] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.904982] virtio_fs_send_req: opcode 5 unique 0x45ca nodeid 0x2f2 in.len 40 out.len 4095 queue_id 1 [ 648.905003] virtio_fs_send_req: opcode 5 unique 0x45cc nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.905214] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.905333] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.905469] virtio_fs_send_req: opcode 14 unique 0x45ce nodeid 0x2f3 in.len 48 out.len 16 queue_id 1 [ 648.905476] virtio_fs_send_req: opcode 5 unique 0x45d0 nodeid 0x4b in.len 40 out.len 4095 queue_id 1 [ 648.905672] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.905803] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.905910] overlayfs: open(00000000b23a5ecd[bin/gawk/l], 0100040) -> (0000000042a63553, 01100040) [ 648.905918] virtio_fs_send_req: opcode 14 unique 0x45d2 nodeid 0x4c in.len 48 out.len 16 queue_id 1 [ 648.906095] virtio_fs_send_req: opcode 5 unique 0x45d4 nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.906255] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.906359] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.906486] overlayfs: open(0000000044db1ed7[lib64/libpcre2-8.so.0.15.0/l], 0100000) -> (00000000761f1272, 01100000) [ 648.906498] virtio_fs_send_req: opcode 14 unique 0x45d6 nodeid 0x28 in.len 48 out.len 16 queue_id 1 [ 648.906653] virtio_fs_send_req: opcode 25 unique 0x45d8 nodeid 0x4c in.len 64 out.len 0 queue_id 1 [ 648.906842] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.906929] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.907050] overlayfs: open(000000001dc27c49[lib64/ld-linux-x86-64.so.2/l], 0100040) -> (00000000cb9765b4, 01100040) [ 648.907060] virtio_fs_send_req: opcode 5 unique 0x45da nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.907329] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.907428] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.907453] virtio_fs_send_req: opcode 14 unique 0x45dc nodeid 0x2b in.len 48 out.len 16 queue_id 1 [ 648.907633] virtio_fs_send_req: opcode 14 unique 0x45de nodeid 0x30 in.len 48 out.len 16 queue_id 1 [ 648.907709] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.907848] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.907943] overlayfs: open(0000000044db1ed7[lib64/libc.so.6/l], 0100000) -> (000000003b97b39b, 01100000) [ 648.907943] overlayfs: open(000000001dc27c49[/ld.so.cache/l], 0100000) -> (00000000fce78bd3, 01100000) [ 648.908091] virtio_fs_send_req: opcode 25 unique 0x45e0 nodeid 0x30 in.len 64 out.len 0 queue_id 1 [ 648.908169] virtio_fs_send_req: opcode 25 unique 0x45e2 nodeid 0x2b in.len 64 out.len 0 queue_id 1 [ 648.908341] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.908447] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.908581] virtio_fs_send_req: opcode 5 unique 0x45e4 nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.908724] virtio_fs_send_req: opcode 18 unique 0x45e6 nodeid 0x2b in.len 64 out.len 0 queue_id 1 [ 648.908776] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.908895] virtio_fs_send_req: opcode 14 unique 0x45e8 nodeid 0x2a7 in.len 48 out.len 16 queue_id 1 [ 648.908956] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.909155] virtio_fs_send_req: opcode 5 unique 0x45ea nodeid 0x2f4 in.len 40 out.len 4095 queue_id 1 [ 648.909156] overlayfs: open(0000000044db1ed7[locale/locale-archive/l], 0100000) -> (00000000a546e0ec, 01100000) [ 648.909346] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.909427] virtio_fs_send_req: opcode 25 unique 0x45ec nodeid 0x2a7 in.len 64 out.len 0 queue_id 1 [ 648.909506] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.909725] virtio_fs_send_req: opcode 14 unique 0x45ee nodeid 0x2f5 in.len 48 out.len 16 queue_id 1 [ 648.909764] virtio_fs_send_req: opcode 14 unique 0x45f0 nodeid 0x2a9 in.len 48 out.len 16 queue_id 1 [ 648.910023] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.910119] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.910240] overlayfs: open(0000000044db1ed7[gconv/gconv-modules.cache/l], 0100000) -> (0000000046b528d3, 01100000) [ 648.910245] overlayfs: open(000000001dc27c49[lib64/libreadline.so.8.3/l], 0100000) -> (000000006c3dd911, 01100000) [ 648.910382] virtio_fs_send_req: opcode 25 unique 0x45f2 nodeid 0x2a9 in.len 64 out.len 0 queue_id 1 [ 648.910515] virtio_fs_send_req: opcode 25 unique 0x45f4 nodeid 0x2f5 in.len 64 out.len 0 queue_id 1 [ 648.910662] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.910775] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.910915] virtio_fs_send_req: opcode 5 unique 0x45f6 nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.910930] virtio_fs_send_req: opcode 14 unique 0x45f8 nodeid 0x2b2 in.len 48 out.len 16 queue_id 1 [ 648.911124] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.911233] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.911331] overlayfs: open(0000000044db1ed7[locale/locale.alias/l], 0100000) -> (000000001b94a7b7, 01100000) [ 648.911332] virtio_fs_send_req: opcode 5 unique 0x45fa nodeid 0x2f6 in.len 40 out.len 4095 queue_id 1 [ 648.911483] virtio_fs_send_req: opcode 25 unique 0x45fc nodeid 0x2b2 in.len 64 out.len 0 queue_id 1 [ 648.911664] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.911757] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.911865] virtio_fs_send_req: opcode 18 unique 0x45fe nodeid 0x2b2 in.len 64 out.len 0 queue_id 1 [ 648.911870] virtio_fs_send_req: opcode 14 unique 0x4600 nodeid 0x2f7 in.len 48 out.len 16 queue_id 1 [ 648.912086] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.912188] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.912284] overlayfs: open(000000001dc27c49[lib64/libmpfr.so.6.2.2/l], 0100000) -> (00000000dd259cff, 01100000) [ 648.912289] virtio_fs_send_req: opcode 18 unique 0x4602 nodeid 0x28 in.len 64 out.len 0 queue_id 1 [ 648.912456] virtio_fs_send_req: opcode 25 unique 0x4604 nodeid 0x2f7 in.len 64 out.len 0 queue_id 1 [ 648.912515] virtio_fs_send_req: opcode 18 unique 0x4606 nodeid 0x2a9 in.len 64 out.len 0 queue_id 1 [ 648.912599] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.912603] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.912924] virtio_fs_send_req: opcode 18 unique 0x4608 nodeid 0x4c in.len 64 out.len 0 queue_id 1 [ 648.912943] virtio_fs_send_req: opcode 5 unique 0x460a nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.913017] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.913020] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.913078] virtio_fs_send_req: opcode 18 unique 0x460c nodeid 0x30 in.len 64 out.len 0 queue_id 1 [ 648.913298] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.913356] virtio_fs_send_req: opcode 18 unique 0x460e nodeid 0x2a7 in.len 64 out.len 0 queue_id 1 [ 648.913463] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.913537] virtio_fs_send_req: opcode 18 unique 0x4610 nodeid 0x245 in.len 64 out.len 0 queue_id 1 [ 648.913877] virtio_fs_send_req: opcode 5 unique 0x4612 nodeid 0x2f8 in.len 40 out.len 4095 queue_id 1 [ 648.913927] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.914084] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.914219] virtio_fs_send_req: opcode 14 unique 0x4614 nodeid 0x2f9 in.len 48 out.len 16 queue_id 1 [ 648.914388] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.914488] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.914586] overlayfs: open(000000001dc27c49[lib64/libgmp.so.10.5.0/l], 0100000) -> (00000000c480dc70, 01100000) [ 648.914746] virtio_fs_send_req: opcode 25 unique 0x4616 nodeid 0x2f9 in.len 64 out.len 0 queue_id 1 [ 648.914898] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.914993] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.915130] virtio_fs_send_req: opcode 5 unique 0x4618 nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.915297] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.915391] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.915500] virtio_fs_send_req: opcode 14 unique 0x461a nodeid 0x42 in.len 48 out.len 16 queue_id 1 [ 648.915676] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.915772] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.915873] overlayfs: open(000000001dc27c49[lib64/libm.so.6/l], 0100000) -> (00000000aab89989, 01100000) [ 648.916022] virtio_fs_send_req: opcode 25 unique 0x461c nodeid 0x42 in.len 64 out.len 0 queue_id 1 [ 648.916184] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.916282] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.916386] virtio_fs_send_req: opcode 5 unique 0x461e nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.916559] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.916656] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.916756] virtio_fs_send_req: opcode 14 unique 0x4620 nodeid 0x30 in.len 48 out.len 16 queue_id 1 [ 648.916947] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.917045] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.917171] overlayfs: open(000000001dc27c49[lib64/libc.so.6/l], 0100000) -> (00000000065b2aff, 01100000) [ 648.917339] virtio_fs_send_req: opcode 25 unique 0x4622 nodeid 0x30 in.len 64 out.len 0 queue_id 1 [ 648.917498] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.917596] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.917710] virtio_fs_send_req: opcode 5 unique 0x4624 nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.917901] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.917998] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.918105] virtio_fs_send_req: opcode 5 unique 0x4626 nodeid 0x1ed in.len 40 out.len 4095 queue_id 1 [ 648.918283] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.918380] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.918489] virtio_fs_send_req: opcode 14 unique 0x4628 nodeid 0x1ee in.len 48 out.len 16 queue_id 1 [ 648.918682] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.918780] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.918881] overlayfs: open(000000001dc27c49[lib64/libtinfo.so.6.5/l], 0100000) -> (0000000057c26190, 01100000) [ 648.919054] virtio_fs_send_req: opcode 25 unique 0x462a nodeid 0x1ee in.len 64 out.len 0 queue_id 1 [ 648.919219] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.919318] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.919997] virtio_fs_send_req: opcode 18 unique 0x462c nodeid 0x2b in.len 64 out.len 0 queue_id 1 [ 648.920159] virtio_fs_send_req: opcode 14 unique 0x462e nodeid 0x2a7 in.len 48 out.len 16 queue_id 1 [ 648.920169] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.920368] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.920492] overlayfs: open(000000001dc27c49[locale/locale-archive/l], 0100000) -> (00000000fce78bd3, 01100000) [ 648.920627] virtio_fs_send_req: opcode 25 unique 0x4630 nodeid 0x2a7 in.len 64 out.len 0 queue_id 1 [ 648.920772] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.920871] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.921036] virtio_fs_send_req: opcode 14 unique 0x4632 nodeid 0x2a9 in.len 48 out.len 16 queue_id 1 [ 648.921211] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.921308] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.921400] overlayfs: open(000000001dc27c49[gconv/gconv-modules.cache/l], 0100000) -> (00000000d54e120f, 01100000) [ 648.921523] virtio_fs_send_req: opcode 25 unique 0x4634 nodeid 0x2a9 in.len 64 out.len 0 queue_id 1 [ 648.921666] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.921770] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.921832] virtqueue callback for 00000000531af360 (00000000df837aee) [ 648.922226] virtio_fs_send_req: opcode 18 unique 0x4636 nodeid 0x28 in.len 64 out.len 0 queue_id 1 [ 648.922326] virtio_fs_send_req: opcode 18 unique 0x4638 nodeid 0x2a9 in.len 64 out.len 0 queue_id 1 [ 648.922400] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.922416] virtio_fs_send_req: opcode 18 unique 0x463a nodeid 0x2f5 in.len 64 out.len 0 queue_id 1 [ 648.922482] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.922564] virtio_fs_send_req: opcode 18 unique 0x463c nodeid 0x2f7 in.len 64 out.len 0 queue_id 1 [ 648.922690] virtio_fs_send_req: opcode 18 unique 0x463e nodeid 0x2f9 in.len 64 out.len 0 queue_id 1 [ 648.922762] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.922780] virtio_fs_send_req: opcode 18 unique 0x4640 nodeid 0x42 in.len 64 out.len 0 queue_id 1 [ 648.922847] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.922929] virtio_fs_send_req: opcode 18 unique 0x4642 nodeid 0x30 in.len 64 out.len 0 queue_id 1 [ 648.923060] virtio_fs_send_req: opcode 18 unique 0x4644 nodeid 0x1ee in.len 64 out.len 0 queue_id 1 [ 648.923126] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.923166] virtio_fs_send_req: opcode 18 unique 0x4646 nodeid 0x2a7 in.len 64 out.len 0 queue_id 1 [ 648.923228] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.923311] virtio_fs_send_req: opcode 18 unique 0x4648 nodeid 0x2f3 in.len 64 out.len 0 queue_id 1 [ 648.923487] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.923557] virtiofs virtio0: virtio_fs_vq_done requests.0 Delta-CAL (IPI): 6007 - this number is before the insert-sort, final number is better. [ 648.926990] virtio_fs_send_req: opcode 14 unique 0x464a nodeid 0xae in.len 48 out.len 16 queue_id 1 [ 648.927221] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.927312] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.927409] overlayfs: open(00000000ae2b3a37[/machine-id/l], 0100000) -> (00000000ebc0a9b2, 01100000) [ 648.927537] virtio_fs_send_req: opcode 25 unique 0x464c nodeid 0xae in.len 64 out.len 0 queue_id 1 [ 648.927709] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.927798] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.927888] virtio_fs_send_req: opcode 18 unique 0x464e nodeid 0xae in.len 64 out.len 0 queue_id 1 [ 648.928052] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.928135] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.928914] virtqueue callback for 00000000b8493952 (000000004941ab6e) [ 648.929008] virtio_fs_send_req: opcode 5 unique 0x4650 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.929175] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.929246] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.929318] virtio_fs_send_req: opcode 5 unique 0x4652 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.929467] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.929535] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.929604] virtio_fs_send_req: opcode 5 unique 0x4654 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.929751] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.929824] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.929899] virtio_fs_send_req: opcode 5 unique 0x4656 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.930043] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.930110] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.930188] virtio_fs_send_req: opcode 5 unique 0x4658 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.930331] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.930399] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.930503] virtio_fs_send_req: opcode 5 unique 0x465a nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.930648] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.930717] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.930795] virtio_fs_send_req: opcode 14 unique 0x465c nodeid 0x204 in.len 48 out.len 16 queue_id 1 [ 648.930976] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.931046] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.931132] overlayfs: open(00000000b23a5ecd[bin/sed/l], 0100040) -> (0000000074755de1, 01100040) [ 648.931288] virtio_fs_send_req: opcode 5 unique 0x465e nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.931448] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.931517] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.931600] virtio_fs_send_req: opcode 14 unique 0x4660 nodeid 0x28 in.len 48 out.len 16 queue_id 1 [ 648.931751] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.931826] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.931906] overlayfs: open(00000000fea37e0c[lib64/ld-linux-x86-64.so.2/l], 0100040) -> (00000000ebc0a9b2, 01100040) [ 648.932282] virtio_fs_send_req: opcode 14 unique 0x4662 nodeid 0x2b in.len 48 out.len 16 queue_id 1 [ 648.932437] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.932508] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.932593] overlayfs: open(00000000fea37e0c[/ld.so.cache/l], 0100000) -> (00000000a546e0ec, 01100000) [ 648.932710] virtio_fs_send_req: opcode 25 unique 0x4664 nodeid 0x2b in.len 64 out.len 0 queue_id 1 [ 648.932868] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.932945] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.933038] virtio_fs_send_req: opcode 5 unique 0x4666 nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.933203] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.933285] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.933377] virtio_fs_send_req: opcode 5 unique 0x4668 nodeid 0x2c in.len 40 out.len 4095 queue_id 1 [ 648.933528] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.933606] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.933695] virtio_fs_send_req: opcode 14 unique 0x466a nodeid 0x2d in.len 48 out.len 16 queue_id 1 [ 648.933850] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.933924] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.934031] overlayfs: open(00000000fea37e0c[lib64/libacl.so.1.1.2302/l], 0100000) -> (000000003b97b39b, 01100000) [ 648.934194] virtio_fs_send_req: opcode 25 unique 0x466c nodeid 0x2d in.len 64 out.len 0 queue_id 1 [ 648.934349] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.934427] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.934513] virtio_fs_send_req: opcode 5 unique 0x466e nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.934668] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.934745] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.934835] virtio_fs_send_req: opcode 14 unique 0x4670 nodeid 0x41 in.len 48 out.len 16 queue_id 1 [ 648.934991] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.935069] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.935152] overlayfs: open(00000000fea37e0c[lib64/libselinux.so.1/l], 0100000) -> (00000000761f1272, 01100000) [ 648.935308] virtio_fs_send_req: opcode 25 unique 0x4672 nodeid 0x41 in.len 64 out.len 0 queue_id 1 [ 648.935462] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.935540] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.935650] virtio_fs_send_req: opcode 5 unique 0x4674 nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.935800] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.935899] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.935994] virtio_fs_send_req: opcode 14 unique 0x4676 nodeid 0x30 in.len 48 out.len 16 queue_id 1 [ 648.936148] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.936226] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.936316] overlayfs: open(00000000fea37e0c[lib64/libc.so.6/l], 0100000) -> (0000000046b528d3, 01100000) [ 648.936448] virtio_fs_send_req: opcode 25 unique 0x4678 nodeid 0x30 in.len 64 out.len 0 queue_id 1 [ 648.936612] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.936691] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.936784] virtio_fs_send_req: opcode 5 unique 0x467a nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.936943] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.937022] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.937125] virtio_fs_send_req: opcode 5 unique 0x467c nodeid 0x43 in.len 40 out.len 4095 queue_id 1 [ 648.937274] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.937353] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.937447] virtio_fs_send_req: opcode 14 unique 0x467e nodeid 0x44 in.len 48 out.len 16 queue_id 1 [ 648.937604] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.937683] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.937769] overlayfs: open(00000000fea37e0c[lib64/libattr.so.1.1.2502/l], 0100000) -> (00000000ce7f73a3, 01100000) [ 648.937964] virtio_fs_send_req: opcode 25 unique 0x4680 nodeid 0x44 in.len 64 out.len 0 queue_id 1 [ 648.938148] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.938229] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.938329] virtio_fs_send_req: opcode 5 unique 0x4682 nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.938499] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.938577] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.938669] virtio_fs_send_req: opcode 5 unique 0x4684 nodeid 0x4b in.len 40 out.len 4095 queue_id 1 [ 648.938831] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.938914] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.939013] virtio_fs_send_req: opcode 14 unique 0x4686 nodeid 0x4c in.len 48 out.len 16 queue_id 1 [ 648.939192] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.939272] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.939361] overlayfs: open(00000000fea37e0c[lib64/libpcre2-8.so.0.15.0/l], 0100000) -> (000000001b94a7b7, 01100000) [ 648.939502] virtio_fs_send_req: opcode 25 unique 0x4688 nodeid 0x4c in.len 64 out.len 0 queue_id 1 [ 648.939654] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.939734] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.940088] virtio_fs_send_req: opcode 18 unique 0x468a nodeid 0x2b in.len 64 out.len 0 queue_id 1 [ 648.940214] virtio_fs_send_req: opcode 1 unique 0x468c nodeid 0x1 in.len 48 out.len 128 queue_id 1 [ 648.940273] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.940394] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.940552] virtio_fs_send_req: opcode 14 unique 0x468e nodeid 0x2a7 in.len 48 out.len 16 queue_id 1 [ 648.940730] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.940819] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.940910] overlayfs: open(00000000fea37e0c[locale/locale-archive/l], 0100000) -> (00000000a546e0ec, 01100000) [ 648.941042] virtio_fs_send_req: opcode 25 unique 0x4690 nodeid 0x2a7 in.len 64 out.len 0 queue_id 1 [ 648.941215] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.941295] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.941413] virtio_fs_send_req: opcode 14 unique 0x4692 nodeid 0x2a9 in.len 48 out.len 16 queue_id 1 [ 648.941577] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.941654] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.941735] overlayfs: open(00000000fea37e0c[gconv/gconv-modules.cache/l], 0100000) -> (000000007d5f2653, 01100000) [ 648.941867] virtio_fs_send_req: opcode 25 unique 0x4694 nodeid 0x2a9 in.len 64 out.len 0 queue_id 1 [ 648.942022] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.942105] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.942374] virtio_fs_send_req: opcode 18 unique 0x4696 nodeid 0x28 in.len 64 out.len 0 queue_id 1 [ 648.942487] virtio_fs_send_req: opcode 18 unique 0x4698 nodeid 0x2a9 in.len 64 out.len 0 queue_id 1 [ 648.942559] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.942599] virtio_fs_send_req: opcode 18 unique 0x469a nodeid 0x2d in.len 64 out.len 0 queue_id 1 [ 648.942660] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.942757] virtio_fs_send_req: opcode 18 unique 0x469c nodeid 0x41 in.len 64 out.len 0 queue_id 1 [ 648.942912] virtio_fs_send_req: opcode 18 unique 0x469e nodeid 0x30 in.len 64 out.len 0 queue_id 1 [ 648.942973] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.943020] virtio_fs_send_req: opcode 18 unique 0x46a0 nodeid 0x44 in.len 64 out.len 0 queue_id 1 [ 648.943084] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.943247] virtio_fs_send_req: opcode 18 unique 0x46a2 nodeid 0x4c in.len 64 out.len 0 queue_id 1 [ 648.943318] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.943353] virtio_fs_send_req: opcode 18 unique 0x46a4 nodeid 0x2a7 in.len 64 out.len 0 queue_id 1 [ 648.943417] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.943514] virtio_fs_send_req: opcode 18 unique 0x46a6 nodeid 0x204 in.len 64 out.len 0 queue_id 1 [ 648.943698] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.943776] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.948394] uart_wait_until_sent(0), jiffies=4295316070, expire=4295316142... root@drm-misc-fixes-2026-02-26-80-g9a2f253ad689:/home/jimc/projects/lx/wk-D/b0-dd# --- drivers/virtio/virtio_ring.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 335692d41617..99f9e547d264 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -759,7 +759,7 @@ static inline int virtqueue_add_split(struct vring_virtqueue *vq, vq->split.avail_idx_shadow); vq->num_added++; - pr_debug("Added buffer head %i to %p\n", head, vq); + pr_debug_ratelimited("Added buffer head %i to %p\n", head, vq); END_USE(vq); /* This is very unlikely, but theoretically possible. Kick @@ -930,7 +930,7 @@ static void *virtqueue_get_buf_ctx_split(struct vring_virtqueue *vq, } if (!more_used_split(vq)) { - pr_debug("No more buffers in queue\n"); + pr_debug_ratelimited("No more buffers in queue\n"); END_USE(vq); return NULL; } @@ -1595,7 +1595,7 @@ static int virtqueue_add_indirect_packed(struct vring_virtqueue *vq, vq->num_added += 1; - pr_debug("Added buffer head %i to %p\n", head, vq); + pr_debug_ratelimited("Added buffer head %i to %p\n", head, vq); END_USE(vq); return 0; @@ -1744,7 +1744,7 @@ static inline int virtqueue_add_packed(struct vring_virtqueue *vq, vq->packed.vring.desc[head].flags = head_flags; vq->num_added += descs_used; - pr_debug("Added buffer head %i to %p\n", head, vq); + pr_debug_ratelimited("Added buffer head %i to %p\n", head, vq); END_USE(vq); return 0; @@ -1902,7 +1902,7 @@ static inline int virtqueue_add_packed_in_order(struct vring_virtqueue *vq, vq->packed.vring.desc[head].flags = head_flags; vq->num_added += total_sg; - pr_debug("Added buffer head %i to %p\n", head, vq); + pr_debug_ratelimited("Added buffer head %i to %p\n", head, vq); END_USE(vq); return 0; @@ -3231,7 +3231,7 @@ irqreturn_t vring_interrupt(int irq, void *_vq) struct vring_virtqueue *vq = to_vvq(_vq); if (!more_used(vq)) { - pr_debug("virtqueue interrupt with no work for %p\n", vq); + pr_debug_ratelimited("virtqueue interrupt with no work for %p\n", vq); return IRQ_NONE; } -- 2.53.0

7 months, 2 weeks

[PATCH v2 0/6] dma-buf: heaps: add coherent reserved-memory heap

by Albert Esteve

This patch introduces a new heap driver to expose DT non‑reusable "shared-dma-pool" coherent regions as dma-buf heaps, so userspace can allocate buffers from each reserved, named region. Because these regions are device‑dependent, each heap instance binds a heap device to its reserved‑mem region via a newly introduced helper function -namely, of_reserved_mem_device_init_with_mem()- so coherent allocations use the correct dev->dma_mem. Charging to cgroups for these buffers is intentionally left out to keep review focused on the new heap; I plan to follow up based on Eric’s [1] and Maxime’s [2] work on dmem charging from userspace. This series also makes the new heap driver modular, in line with the CMA heap change in [3]. [1] https://lore.kernel.org/all/20260218-dmabuf-heap-cma-dmem-v2-0-b249886fb7b2… [2] https://lore.kernel.org/all/20250310-dmem-cgroups-v1-0-2984c1bc9312@kernel.… [3] https://lore.kernel.org/all/20260303-dma-buf-heaps-as-modules-v3-0-24344812… Signed-off-by: Albert Esteve <aesteve(a)redhat.com> --- Changes in v2: - Removed dmem charging parts - Moved coherent heap registering logic to coherent.c - Made heap device a member of struct dma_heap - Split dma_heap_add logic into create/register, to be able to access the stored heap device before registered. - Avoid platform device in favour of heap device - Added a wrapper to rmem device_init() op - Switched from late_initcall() to module_init() - Made the coherent heap driver modular - Link to v1: https://lore.kernel.org/r/20260224-b4-dmabuf-heap-coherent-rmem-v1-1-dffef4… --- Albert Esteve (5): dma-buf: dma-heap: split dma_heap_add of_reserved_mem: add a helper for rmem device_init op dma-buf: heaps: Add Coherent heap to dmabuf heaps dma: coherent: register to coherent heap dma-buf: heaps: coherent: Turn heap into a module John Stultz (1): dma-buf: dma-heap: Keep track of the heap device struct drivers/dma-buf/dma-heap.c | 138 +++++++++-- drivers/dma-buf/heaps/Kconfig | 9 + drivers/dma-buf/heaps/Makefile | 1 + drivers/dma-buf/heaps/coherent_heap.c | 429 ++++++++++++++++++++++++++++++++++ drivers/of/of_reserved_mem.c | 27 ++- include/linux/dma-heap.h | 16 ++ include/linux/dma-map-ops.h | 7 + include/linux/of_reserved_mem.h | 8 + kernel/dma/coherent.c | 34 +++ 9 files changed, 642 insertions(+), 27 deletions(-) --- base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f change-id: 20260223-b4-dmabuf-heap-coherent-rmem-91fd3926afe9 Best regards, -- Albert Esteve <aesteve(a)redhat.com>

7 months, 2 weeks

[PATCH v3 11/12] nilfs2: widen trace event i_ino fields to u64

by jlayton＠kernel.org

The content of this message was lost. It was probably cross-posted to multiple lists and previously handled on another list.

7 months, 2 weeks

[PATCH v3 10/12] f2fs: widen trace event i_ino fields to u64

by jlayton＠kernel.org

The content of this message was lost. It was probably cross-posted to multiple lists and previously handled on another list.

7 months, 2 weeks

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