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Date:   Mon, 4 Oct 2021 19:27:30 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
        akpm@...ux-foundation.org, shuah@...nel.org, patches@...nelci.org,
        lkft-triage@...ts.linaro.org, pavel@...x.de, jonathanh@...dia.com,
        f.fainelli@...il.com, stable@...r.kernel.org
Subject: Re: [PATCH 5.14 000/172] 5.14.10-rc1 review

On Mon, Oct 04, 2021 at 07:20:13PM -0700, Guenter Roeck wrote:
> On Mon, Oct 04, 2021 at 02:50:50PM +0200, Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 5.14.10 release.
> > There are 172 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.
> > 
> 
> Build results:
> 	total: 154 pass: 154 fail: 0
> Qemu test results:
> 	total: 480 pass: 480 fail: 0
> 

I spoke too early. A large number of boot tests report the following
warning tracebacks in this rc.

Guenter

====================================
WARNING: ip/134 still has locks held!
5.14.10-rc1-00173-gcda15f9c69e0 #1 Not tainted
------------------------------------
1 lock held by ip/134:
 #0: c17acf0c (sk_lock-AF_INET){+.+.}-{0:0}, at: 0xc17c561c

stack backtrace:
CPU: 0 PID: 134 Comm: ip Not tainted 5.14.10-rc1-00173-gcda15f9c69e0 #1
Call trace:
[<(ptrval)>] dump_stack+0x34/0x48
[<(ptrval)>] debug_check_no_locks_held+0xc8/0xd0
[<(ptrval)>] do_exit+0x6a8/0xc2c
[<(ptrval)>] do_group_exit+0x68/0x114
[<(ptrval)>] __wake_up_parent+0x0/0x34
[<(ptrval)>] _syscall_return+0x0/0x4

=========================
WARNING: held lock freed!
5.14.10-rc1-00173-gcda15f9c69e0 #1 Not tainted
-------------------------
ip/182 is freeing memory 9000000002400040-90000000024006bf, with a lock still held there!
9000000002400160 (sk_lock-AF_INET){+.+.}-{0:0}, at: sk_common_release+0x28/0x118
2 locks held by ip/182:
 #0: 90000000036a0280 (&sb->s_type->i_mutex_key#4){+.+.}-{3:3}, at: __sock_release+0x34/0xd8
 #1: 9000000002400160 (sk_lock-AF_INET){+.+.}-{0:0}, at: sk_common_release+0x28/0x118

stack backtrace:
CPU: 0 PID: 182 Comm: ip Not tainted 5.14.10-rc1-00173-gcda15f9c69e0 #1
Stack : 0000000000000000 0000000000000000 0000000000000008 627881c1d8d1d123
        90000000021453c0 0000000000000000 90000000026cbb58 ffffffff80f3b950
        ffffffff81088f80 0000000000000001 90000000026cb9a8 0000000000000000
        0000000000000000 0000000000000010 ffffffff8071ee00 0000000000000000
        0000000000000000 ffffffff81060000 0000000000000001 ffffffff80f3b950
        9000000002ab2940 000000001000a4e0 000000007fe10f68 ffffffffffffffff
        0000000000000000 0000000000000000 ffffffff807a51a0 0000000000052798
        ffffffff81220000 90000000026c8000 90000000026cbb50 0000000000000000
        ffffffff80c7b6f0 0000000000000000 90000000026cbc88 ffffffff8121e440
        00000000000000b6 0000000000000000 ffffffff8010b304 627881c1d8d1d123
        ...
Call Trace:
[<ffffffff8010b304>] show_stack+0x3c/0x120
[<ffffffff80c7b6f0>] dump_stack_lvl+0xa0/0xec
[<ffffffff801a8228>] debug_check_no_locks_freed+0x168/0x1a0
[<ffffffff802d679c>] kmem_cache_free.part.0+0xf4/0x2b8
[<ffffffff809eb5d0>] __sk_destruct+0x150/0x230
[<ffffffff80b22094>] inet_release+0x4c/0x88
[<ffffffff809e2744>] __sock_release+0x44/0xd8
[<ffffffff809e27ec>] sock_close+0x14/0x28
[<ffffffff802e4d84>] __fput+0xac/0x2d8
[<ffffffff80163500>] task_work_run+0x90/0xf0
[<ffffffff8010a6e8>] do_notify_resume+0x348/0x360
[<ffffffff801039e8>] work_notifysig+0x10/0x18

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