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

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On 2024/6/14 23:12, syzbot wrote:
syzbot has bisected this issue to:

commit 1c05047ad01693ad92bdf8347fad3b5c2b25e8bb
Author: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxxxxxxxxxxxx
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: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git/commit/?h=mm-unstable&id=4135d2688b42f097f78062ef328f3056db32e3a0




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