linux-kernel - Re: 5.8-rc*: kernel BUG at kernel/signal.c:1917

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Date:   Sat, 18 Jul 2020 15:05:40 +0200
From:   Jiri Slaby <jirislaby@...nel.org>
To:     Christian Brauner <christian.brauner@...ntu.com>
Cc:     Oleg Nesterov <oleg@...hat.com>, christian@...uner.io,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Linux kernel mailing list <linux-kernel@...r.kernel.org>
Subject: Re: 5.8-rc*: kernel BUG at kernel/signal.c:1917

On 17. 07. 20, 13:12, Christian Brauner wrote:
> On Fri, Jul 17, 2020 at 01:04:38PM +0200, Jiri Slaby wrote:
>> On 17. 07. 20, 12:45, Jiri Slaby wrote:
>>> Hi,
>>>
>>> the strace testsuite triggers this on 5.8-rc4 and -rc5 both on x86_64
>>> and i586:
>>
>> make check needs -jsomething, running is sequentially (-j1) doesn't
>> trigger it. After the error, I cannot run anything. Like ps to find out
>> what test caused the crash...
>>
>> 5.7 was fine.
> 
> Can you try and reproduce with
> 
> commit e91b48162332480f5840902268108bb7fb7a44c7
> Author: Oleg Nesterov <oleg@...hat.com>
> Date:   Tue Jun 30 17:32:54 2020 +0200
> 
>     task_work: teach task_work_add() to do signal_wake_up()
> 
> reverted, please?

I reverted these 3:
+This reverts commit b7db41c9e03b5189bc94993bd50e4506ac9e34c1.
+This reverts commit ce593a6c480a22acba08795be313c0c6d49dd35d.
+This reverts commit e91b48162332480f5840902268108bb7fb7a44c7.

But it still crashes.

thanks,
-- 
js