Hello!
On Tue, 23 May 2023 at 00:28, Vlastimil Babka vbabka@suse.cz wrote:
On 5/22/23 20:23, Daniel Díaz wrote:
Hello!
Would the stable maintainers please consider backporting the following commit to the 6.1? We are trying to build gki_defconfig (plus a few extras) on Arm64 and test it under Qemu-arm64, but it fails to boot. Bisection has pointed here.
You mean the bisection was done to find the first "good" commit between 6.1 and e.g. 6.3?
As others said, this commit wasn't expected to be a fix to a known bug. Maybe you found one that we didn't know of, or it might be accidentaly masking some other bug.
How interesting! Yes, we happened to run a bisection between v6.1 and v6.3 and we found where it started working with the following configuration: https://storage.tuxsuite.com/public/linaro/daniel/builds/2QA2CHQUpqKe27FyMZr...
With that patch on top of v6.1.29 it boots fine under Qemu-arm64; as v6.1.y stands, it panics with this: -----8<----- Unexpected kernel BRK exception at EL1 Internal error: BRK handler: 00000000f2000001 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.1.29 #1 Hardware name: linux,dummy-virt (DT) pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : pskb_expand_head+0x448/0x480 lr : pskb_expand_head+0x13c/0x480 sp : ffff80000802b850 x29: ffff80000802b860 x28: 00000000000002c0 x27: 0000000000000ec0 x26: ffff0000c02c8ec0 x25: ffff0000c02c8000 x24: 00000000000128c0 x23: ffff0000c030e800 x22: ffff0000c030e800 x21: 0000000000000240 x20: 0000000000000000 x19: ffff0000c085e900 x18: ffff800008021068 x17: 00000000ad6b63b6 x16: 00000000ad6b63b6 x15: 0001001c00070038 x14: 0000000c00020008 x13: 00882cc00000ffff x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000001 x8 : ffff0000c030eac0 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff0000c030eaf0 x4 : ffff0000ff7abd10 x3 : 0000000000001740 x2 : ffff0000c02c8000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: pskb_expand_head+0x448/0x480 netlink_trim+0xa0/0xc8 netlink_broadcast+0x54/0x764 genl_ctrl_event+0x21c/0x37c genl_register_family+0x628/0x708 thermal_netlink_init+0x28/0x3c thermal_init+0x28/0xec do_one_initcall+0xfc/0x358 do_initcall_level+0xd8/0x1b4 do_initcalls+0x64/0xa8 do_basic_setup+0x2c/0x3c kernel_init_freeable+0x118/0x198 kernel_init+0x30/0x1c0 ret_from_fork+0x10/0x20 Code: f9406679 38776b28 3707eba8 17ffff67 (d4200020) ---[ end trace 0000000000000000 ]--- Kernel panic - not syncing: BRK handler: Fatal exception SMP: stopping secondary CPUs ----->8-----
Greetings!
Daniel Díaz daniel.diaz@linaro.org