linux-kernel - Re: [syzbot] [mm?] upstream test error: WARNING in enable

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Message-ID: <1eec6e29-6bb9-4d07-bf91-2e7abe5c857f@I-love.SAKURA.ne.jp>
Date: Sat, 11 Jan 2025 10:08:40 +0900
From: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
To: syzbot <syzbot+0bef82da8b7dca7e5869@...kaller.appspotmail.com>,
        akpm@...ux-foundation.org, syzkaller-bugs@...glegroups.com,
        Koichiro Den <koichiro.den@...onical.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: linux-kernel@...r.kernel.org
Subject: Re: [syzbot] [mm?] upstream test error: WARNING in enable_work

#syz fix: Revert "vmstat: disable vmstat_work on vmstat_cpu_down_prep()"

On 2025/01/10 21:06, Tetsuo Handa wrote:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/mm/vmstat.c?id=adcfb264c3ed51fbbf5068ddf10d309a63683868
> looks like the cause of this problem.
> 
> On 2025/01/10 5:39, syzbot wrote:
>> Hello,
>>
>> syzbot found the following issue on:
>>
>> HEAD commit:    9d89551994a4 Linux 6.13-rc6
>> git tree:       upstream
>> console output: https://syzkaller.appspot.com/x/log.txt?x=1180b9c4580000
>> kernel config:  https://syzkaller.appspot.com/x/.config?x=10cb4f23d3e0f104
>> dashboard link: https://syzkaller.appspot.com/bug?extid=0bef82da8b7dca7e5869
>> compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
>>
>> Downloadable assets:
>> disk image: https://storage.googleapis.com/syzbot-assets/ac26b8628463/disk-9d895519.raw.xz
>> vmlinux: https://storage.googleapis.com/syzbot-assets/05387975b936/vmlinux-9d895519.xz
>> kernel image: https://storage.googleapis.com/syzbot-assets/c28b69047c4b/bzImage-9d895519.xz
>>
>> IMPORTANT: if you fix the issue, please add the following tag to the commit:
>> Reported-by: syzbot+0bef82da8b7dca7e5869@...kaller.appspotmail.com
>