Re: [PATCH 4.14 00/75] 4.14.249-rc1 review

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On Mon, 4 Oct 2021 at 18:29, Greg Kroah-Hartman
<gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>
> This is the start of the stable review cycle for the 4.14.249 release.
> There are 75 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 06 Oct 2021 12:50:17 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
>         https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.14.249-rc1.gz
> or in the git tree and branch at:
>         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h

Regression found on arm, arm64, i386 and x86.
following kernel crash reported on stable-rc linux-4.14.y.

The regression found to be the same as linux-4.19.y regression report.

metadata:
  git branch: linux-4.14.y
  git repo: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc
  git commit: 7f6d4fdae68d03504a8db861c9b0b7d141fc8e1b
  git describe: v4.14.248-76-g7f6d4fdae68d
  make_kernelversion: 4.14.249-rc1
  kernel-config: https://builds.tuxbuild.com/1z2iunDwXCLi5DKUEpJHnhM0ySR/config

Kernel crash:
--------------
[   14.317412] BUG: unable to handle kernel NULL pointer dereference
at           (null)
[   14.325232] IP: __sk_destruct+0xb9/0x190
[   14.329155] PGD 0 P4D 0
[   14.331687] Oops: 0002 [#1] SMP PTI
[   14.335171] Modules linked in:
[   14.338222] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.14.249-rc1 #1
[   14.344652] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS
2.0b 07/27/2017
[   14.352122] task: ffff8dc95d6dac40 task.stack: ffffaa1401930000
[   14.358052] RIP: 0010:__sk_destruct+0xb9/0x190
[   14.362514] RSP: 0000:ffff8dc96fd03dc8 EFLAGS: 00010246
[   14.367730] RAX: 0000000000000000 RBX: ffff8dc95ba682c0 RCX: 0000000000000002
[   14.374856] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   14.381978] RBP: ffff8dc96fd03de8 R08: ffff8dc95ba68000 R09: 0000000000000000
[   14.389103] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8dc95ba68000
[   14.396226] R13: ffff8dc95ba682c0 R14: ffff8dc95c33b540 R15: 00000000ffffff0c
[   14.403351] FS:  0000000000000000(0000) GS:ffff8dc96fd00000(0000)
knlGS:0000000000000000
[   14.411428] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.417164] CR2: 0000000000000000 CR3: 0000000310c0a001 CR4: 00000000003606e0
[   14.424291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   14.431414] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   14.438538] Call Trace:
[   14.440982]  <IRQ>
[   14.442994]  __sk_free+0x5d/0x100
[   14.446311]  __sock_wfree+0x2c/0x30
[   14.449796]  skb_release_head_state+0x52/0xa0
[   14.454146]  napi_consume_skb+0x5a/0x140
[   14.458081]  igb_poll+0xc7/0xf40
[   14.461305]  net_rx_action+0x12c/0x3c0
[   14.465049]  ? __napi_schedule+0x54/0x70
[   14.468993]  __do_softirq+0xf6/0x316
[   14.472565]  irq_exit+0xab/0xe0
[   14.475710]  do_IRQ+0x90/0xe0
[   14.478673]  common_interrupt+0x97/0x97
[   14.482503]  </IRQ>
[   14.484601] RIP: 0010:cpuidle_enter_state+0x10b/0x270
[   14.489644] RSP: 0000:ffffaa1401933e90 EFLAGS: 00000246 ORIG_RAX:
ffffffffffffffbd
[   14.497200] RAX: ffff8dc96fd1fb00 RBX: ffff8dc95ce2b400 RCX: 000000000000001f
[   14.504326] RDX: 20c49ba5e353f7cf RSI: ffffffeef3e739ed RDI: 0000000000000000
[   14.511448] RBP: ffffaa1401933ec8 R08: 0000000355625095 R09: 0000000000000002
[   14.518574] R10: 0000000000000032 R11: ffff8dc95ce2b400 R12: 0000000000000001
[   14.525697] R13: ffffffff8accb7c0 R14: ffffffff8accb820 R15: 0000000355625095
[   14.532824]  cpuidle_enter+0x17/0x20
[   14.536401]  call_cpuidle+0x23/0x40
[   14.539886]  do_idle+0x15c/0x1b0
[   14.543109]  cpu_startup_entry+0x20/0x30
[   14.547052]  start_secondary+0x179/0x1b0
[   14.550995]  secondary_startup_64+0xa5/0xb0
[   14.555174] Code: 23 48 8b 47 20 48 8d 50 ff a8 01 48 0f 45 fa f0
ff 4f 1c 0f 84 d3 00 00 00 48 c7 83 08 ff ff ff 00 00 00 00 48 8b bb
78 ff ff ff <f0> ff 0f 0f 84 9a 00 00 00 48 8b bb 70 ff ff ff e8 52 29
77 ff
[   14.574049] RIP: __sk_destruct+0xb9/0x190 RSP: ffff8dc96fd03dc8
[   14.579984] CR2: 0000000000000000
[   14.583297] ---[ end trace 60cf825c79b13148 ]---
[   14.587914] Kernel panic - not syncing: Fatal exception in interrupt
[   14.594301] Kernel Offset: 0x8400000 from 0xffffffff81000000
(relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[   14.604987] ---[ end Kernel panic - not syncing: Fatal exception in interrupt

Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>

ref:
https://lkft.validation.linaro.org/scheduler/job/3657328#L932

-- 
Linaro LKFT
https://lkft.linaro.org



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