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Date: Mon, 18 Apr 2022 14:09:56 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
linux@...ck-us.net, shuah@...nel.org, patches@...nelci.org,
lkft-triage@...ts.linaro.org, pavel@...x.de, jonathanh@...dia.com,
f.fainelli@...il.com, sudipm.mukherjee@...il.com,
slade@...dewatkins.com, Netdev <netdev@...r.kernel.org>,
"David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>
Subject: Re: [PATCH 4.19 000/338] 4.19.238-rc1 review
On Thu, 14 Apr 2022 at 18:45, Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 4.19.238 release.
> There are 338 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 Sat, 16 Apr 2022 11:07:54 +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-4.19.238-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-4.19.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
Following kernel warning noticed on arm64 Juno-r2 while booting
stable-rc 4.19.238. Here is the full test log link [1].
[ 0.000000] Booting Linux on physical CPU 0x0000000100 [0x410fd033]
[ 0.000000] Linux version 4.19.238 (tuxmake@...make) (gcc version
11.2.0 (Debian 11.2.0-18)) #1 SMP PREEMPT @1650206156
[ 0.000000] Machine model: ARM Juno development board (r2)
<trim>
[ 18.499895] ================================
[ 18.504172] WARNING: inconsistent lock state
[ 18.508451] 4.19.238 #1 Not tainted
[ 18.511944] --------------------------------
[ 18.516222] inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
[ 18.522242] kworker/u12:3/60 [HC0[0]:SC0[0]:HE1:SE1] takes:
[ 18.527826] (____ptrval____)
(&(&xprt->transport_lock)->rlock){+.?.}, at: xprt_destroy+0x70/0xe0
[ 18.536648] {IN-SOFTIRQ-W} state was registered at:
[ 18.541543] lock_acquire+0xc8/0x23c
[ 18.545216] _raw_spin_lock+0x50/0x64
[ 18.548973] xs_tcp_state_change+0x1b4/0x440
[ 18.553343] tcp_rcv_state_process+0x684/0x1300
[ 18.557972] tcp_v4_do_rcv+0x70/0x290
[ 18.561731] tcp_v4_rcv+0xc34/0xda0
[ 18.565316] ip_local_deliver_finish+0x16c/0x3c0
[ 18.570032] ip_local_deliver+0x6c/0x240
[ 18.574051] ip_rcv_finish+0x98/0xe4
[ 18.577722] ip_rcv+0x68/0x210
[ 18.580871] __netif_receive_skb_one_core+0x6c/0x9c
[ 18.585847] __netif_receive_skb+0x2c/0x74
[ 18.590039] netif_receive_skb_internal+0x88/0x20c
[ 18.594928] netif_receive_skb+0x68/0x1a0
[ 18.599036] smsc911x_poll+0x104/0x290
[ 18.602881] net_rx_action+0x124/0x4bc
[ 18.606727] __do_softirq+0x1d0/0x524
[ 18.610484] irq_exit+0x11c/0x144
[ 18.613894] __handle_domain_irq+0x84/0xe0
[ 18.618086] gic_handle_irq+0x5c/0xb0
[ 18.621843] el1_irq+0xb4/0x130
[ 18.625081] cpuidle_enter_state+0xc0/0x3ec
[ 18.629361] cpuidle_enter+0x38/0x4c
[ 18.633032] do_idle+0x200/0x2c0
[ 18.636353] cpu_startup_entry+0x30/0x50
[ 18.640372] rest_init+0x260/0x270
[ 18.643870] start_kernel+0x45c/0x490
[ 18.647625] irq event stamp: 18931
[ 18.651037] hardirqs last enabled at (18931): [<ffff00000832e800>]
kfree+0xe0/0x370
[ 18.658799] hardirqs last disabled at (18930): [<ffff00000832e7ec>]
kfree+0xcc/0x370
[ 18.666564] softirqs last enabled at (18920): [<ffff000008fbce94>]
rpc_wake_up_first_on_wq+0xb4/0x1b0
[ 18.675893] softirqs last disabled at (18918): [<ffff000008fbce18>]
rpc_wake_up_first_on_wq+0x38/0x1b0
[ 18.685217]
[ 18.685217] other info that might help us debug this:
[ 18.691758] Possible unsafe locking scenario:
[ 18.691758]
[ 18.697689] CPU0
[ 18.700137] ----
[ 18.702586] lock(&(&xprt->transport_lock)->rlock);
[ 18.707562] <Interrupt>
[ 18.710184] lock(&(&xprt->transport_lock)->rlock);
[ 18.715335]
[ 18.715335] *** DEADLOCK ***
[ 18.715335]
[ 18.721270] 2 locks held by kworker/u12:3/60:
[ 18.725633] #0: (____ptrval____)
((wq_completion)\"rpciod\"){+.+.}, at: process_one_work+0x1e0/0x6c0
[ 18.734711] #1: (____ptrval____)
((work_completion)(&task->u.tk_work)){+.+.}, at:
process_one_work+0x1e0/0x6c0
[ 18.744831]
[ 18.744831] stack backtrace:
[ 18.749202] CPU: 0 PID: 60 Comm: kworker/u12:3 Not tainted 4.19.238 #1
[ 18.755741] Hardware name: ARM Juno development board (r2) (DT)
[ 18.761678] Workqueue: rpciod rpc_async_schedule
[ 18.766305] Call trace:
[ 18.768758] dump_backtrace+0x0/0x190
[ 18.772427] show_stack+0x28/0x34
[ 18.775748] dump_stack+0xb0/0xf8
[ 18.779072] print_usage_bug.part.0+0x25c/0x270
[ 18.783613] mark_lock+0x5d0/0x6e0
[ 18.787023] __lock_acquire+0x6c4/0x16f0
[ 18.790955] lock_acquire+0xc8/0x23c
[ 18.794539] _raw_spin_lock+0x50/0x64
[ 18.798210] xprt_destroy+0x70/0xe0
[ 18.801708] xprt_put+0x44/0x50
[ 18.804857] rpc_task_release_client+0x7c/0x90
[ 18.809311] __rpc_execute+0x2a8/0x5f4
[ 18.813069] rpc_async_schedule+0x24/0x30
[ 18.817089] process_one_work+0x28c/0x6c0
[ 18.821108] worker_thread+0x6c/0x450
[ 18.824779] kthread+0x12c/0x16c
[ 18.828015] ret_from_fork+0x10/0x24
[ 18.931718] VFS: Mounted root (nfs filesystem) on device 0:17.
metadata:
git_ref: linux-4.19.y
git_repo: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc
git_sha: aaad8e56ca1e56fe34b5a33f30fb6f9279969020
git_describe: v4.19.238
kernel_version: 4.19.238
kernel-config: https://builds.tuxbuild.com/27vgbZzdS2aNU90tNu4Hl0IJuIP/config
--
Linaro LKFT
https://lkft.linaro.org
[1] https://lkft.validation.linaro.org/scheduler/job/4909565#L1141
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