linux-kernel - Re: [syzbot] BUG: Bad rss-counter state (5)

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Date: Fri, 14 Jun 2024 23:50:58 +0800
From: Baolin Wang <baolin.wang@...ux.alibaba.com>
To: syzbot <syzbot+f2bbbb592debc978d46d@...kaller.appspotmail.com>
Cc: akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
 linux-mm@...ck.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] BUG: Bad rss-counter state (5)



On 2024/6/14 23:49, syzbot wrote:
>>
>>
>> On 2024/6/14 23:12, syzbot wrote:
>>> syzbot has bisected this issue to:
>>>
>>> commit 1c05047ad01693ad92bdf8347fad3b5c2b25e8bb
>>> Author: Baolin Wang <baolin.wang@...ux.alibaba.com>
>>> Date:   Tue Jun 4 10:17:45 2024 +0000
>>>
>>>       mm: memory: extend finish_fault() to support large folio
>>>
>>> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=106e8e56980000
>>> start commit:   d35b2284e966 Add linux-next specific files for 20240607
>>> git tree:       linux-next
>>> final oops:     https://syzkaller.appspot.com/x/report.txt?x=126e8e56980000
>>> console output: https://syzkaller.appspot.com/x/log.txt?x=146e8e56980000
>>> kernel config:  https://syzkaller.appspot.com/x/.config?x=d8bf5cd6bcca7343
>>> dashboard link: https://syzkaller.appspot.com/bug?extid=f2bbbb592debc978d46d
>>> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17f57a36980000
>>> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10a57696980000
>>>
>>> Reported-by: syzbot+f2bbbb592debc978d46d@...kaller.appspotmail.com
>>> Fixes: 1c05047ad016 ("mm: memory: extend finish_fault() to support large folio")
>>>
>>> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
>>
>> Thanks. Please try the fix in mm-unstable branch
>>
>> #syz test:
> 
> want either no args or 2 args (repo, branch), got 1
> 
>> https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git/commit/?h=mm-unstable&id=4135d2688b42f097f78062ef328f3056db32e3a0

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git 
mm-unstable