Lo! CCing stable and regressions list. FWIW, I have a Fedora 34 VM that stopped booting with 5.14.19 as well. More inline:
On 18.11.21 01:55, Chris Rankin wrote:
I have tried to boot a vanilla 5.14.19 kernel, but it crashes when "switching root" away from the initramfs. ("Unable to handle page fault...)
Google's "copy text from image" feature has managed to scrape this information from my phone camera:
1tch Noo BUG: unable to handle page fault for address: ffffc980006cfeDS #PF: supervisor read access in kernel mode #PF: error_code (8x8888) - not-present page PGD 100000067 P4D 100000067 PUD 18885e867 PMD 104486867 PTE 8 Oops: 0888 [#1] PREEMPT SMP PTI CPU: 6 PID: 1 Comm: systemd Tainted: G Hardware name: Gigabyte Technology Co., Ltd. EX58-UD3R/EX58-UD3R, BIOS FB 05/04/2009 5.14.19 #1 RIP: 0010: __unwind_start+8xb5/8x15f Code: 48 8d 8d 88 88 88 88 48 89 e2 48 89 e8 48 89 4d 48 48 89 55 38 48 RSP: 0018:ffffc90088823bf0 EFLAGS: 00010006 RAX: ffffc900006efde8 RBX: 0000000000000000 RCX: 08 RDX: ffffc900006efe18 RSI : ffff88818a9f6c80 RDI: ffffc RBP: ffffc90808823c18 R08: 00000000000001de R89: R10: ffff888107d20000 R11: ffff888183b4ba88 R12: ffffc900006ef dell R13: ffff88810a9f73bc R14: ffff888103c58480 R15: FS: 00007f528fd19b40 (0800) GS:ffff888343488808 (0888) knl6S: CS: 0818 DS: 0000 ES: 0000 CRO: 0888000088858833 CR2: ffffc900006efe88 CR3: 088080818186a888 CR4: 8888 Call Trace:
<TASK> get_wchan+8x42/8x8f get_wchan+8x45/8x59 do_task_stat+0x3ab/0x38 proc_single_show+8x1e/8x68 seq_read_iter+0x151/8x342 seq_read+8xf1/8x117 uf's_read+Bxa3/8x183 ksys_read+8x71/8xb9 do_syscal1_64+8x6d/8x88 entry_SYSCALL_64_after_huframe+8x11/8xne RIP: 8033:8x7f529884f832 Code: c0 e9 b2 fe ff ff 50 48 8d 3d ea 2e Bc 80 68 65 £9 01 00 0f 16 44 000 RSP: 082b:00087ffed3b91f18 EFLAGS: 88888246 ORIG RAX: RAX: ffffffffffffffda RBX: 8888559462036658 RCX: 000071529084/83 RDX: 0000000000000100 RSI: 8088559462c90b78 RDI: RBP: 000071529894a300 BAR: te fa
And also this:
do_syscall_64+0x6d/0x80 entry_SYSCALL_64_after_huframe+0x44/0xae RIP: 8033:0x7f529884f832 Code: c0 e9 b2 fe ff ff 50 48 8d 3d ea Ze Bc 80 e8 b5 f9 01 00 0f 1f 44 00 00 f3 Bf 1e fa 64 8b 84 25 18 88 RSP: 082b:00087ffed3b91f 18 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000559462c36650 RCX: 000071529084f832 RDX: 0000000000000400 RSI: 0000559462c90b70 RDI: 0000000000000006 RBP: 000071529094a3a0 R08: 0000000000000006 RO9: 0000000000000001 R18: 0000000000001000 R11: 0000000000000246 R12: 00007f528fd198f0 R13: 0000000000000168 R14: 00007f52909497a0 R15: 00000000000001468
</TASK> Modules linked in: ext4 crc32c_generic crc16 mbcache jbd2 sr_mod sd_mod cdrom hid_microsoft usbhid amdgpu uh ci drm_kms_helper ehci_hcd cf bf illrect syscopyarea cfbimgblt sysfillrect sysimgblt xhci pci xhci_hcd fb_sys_ mod usb_common drm_panel_orientation_quirks ipmi_devintf ipmi_msghandler msr sha256_ssse3 sha256_generic ipu CRZ: ffffc900006efe08 --- end trace 9771b79967a8dd89 ]--- RIP: 8010:_unwind_start+8xb5/0x15f Code: 48 8d 8d 00 00 00 00 48 89 e2 48 89 e8 48 89 4d 48 48 89 55 38 48 89 45 40 eb 29 48 8b 86 98 Ba 80 00 RSP: 0818:ffffc90000023bf0 EFLAGS: 00010006 RAX: ffffc900006efde0 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffffc900006efe18 RSI: ffff88810a9f6c00 RDI: ffffc90000023c78 RBP: ffffc98800023c18 R08: 00000000000001de R09: 00000000005b20c6 R10: ffff888107120000 R11: ffff888103b4ba80 R12: ffffc900006ef de R13: ffff88818a9f73bc R14: ffff888103c50480 R15: 0000000000000000 FS: 00007f528fd19b40(8000) GS:ffff888343180000 (0800) knlGS:0000000000000000 CS: 0810 DS: 0000 ES: 0000 CRO: 0000000080050033 CR2: ffffc908806efe88 CR3: 000000010186a000 CR4: 00000000000006e0 note: systemd [1] exited with preempt_count 1 Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009 Kernel Offset: disabled --- [ end Kernel panic not syncing: Attempted to kill initf exitcode=0x00000009 1--- -
I cannot capture the exact oops via any other means, although I can send the original camera pictures that I captured the text from, on request.
By default I didn't get to see any messages, the VM just hangs when switching to root. Did anyone else already report or even track this down already? Guess otherwise I need to take a closer look and maybe start bisecting...
To be sure this issue doesn't fall through the cracks unnoticed, I'm adding it to regzbot, the Linux kernel regression tracking bot:
#regzbot ^introduced v5.14.18..v5.14.19 #regzbot title 5.14.19 crashes when switching from initramfs to root
Ciao, Thorsten (as Linux kernel regression tracker and someone that is affected by this...)
P.S.: If you want to know more about regzbot, check out its web-interface, the getting start guide, and/or the references documentation:
https://linux-regtracking.leemhuis.info/regzbot/ https://gitlab.com/knurd42/regzbot/-/blob/main/docs/getting_started.md https://gitlab.com/knurd42/regzbot/-/blob/main/docs/reference.md
But note, regzbot is doing its first field-testing now and thus still has some bugs. Adding this regression will help be to find them, hence feel free to ignore this mail or any errors you spot in the web-ui.