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    SubjectRe: [PATCH 4.14 00/75] 4.14.249-rc1 review
    On Mon, Oct 4, 2021 at 10:49 AM Naresh Kamboju
    <naresh.kamboju@linaro.org> wrote:
    >
    > On Mon, 4 Oct 2021 at 18:29, Greg Kroah-Hartman
    > <gregkh@linuxfoundation.org> 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.
    >

    Same comment really.

    Please backport f06bc03339ad4c1baa964a5f0606247ac1c3c50b
    ("cred: allow get_cred() and put_cred() to be given NULL.")


    > 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@linaro.org>
    >
    > ref:
    > https://lkft.validation.linaro.org/scheduler/job/3657328#L932
    >
    > --
    > Linaro LKFT
    > https://lkft.linaro.org

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