Re: [syzbot] [mm?] WARNING in try_to_migrate_one (3)

syzbot
2025-08-10T14:50:06Z

syzbot has bisected this issue to:

commit cac1db8c3aad97d6ffb56ced8868d6cbbbd2bfbe
Author: Dev Jain <dev.jain@arm.com>
Date: Fri Jul 18 09:02:43 2025 +0000

mm: optimize mprotect() by PTE batching

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12ac8842580000
start commit: 0227b49b5027 Merge tag 'gpio-updates-for-v6.17-rc1-part2' ..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=11ac8842580000
console output: https://syzkaller.appspot.com/x/log.txt?x=16ac8842580000
kernel config: https://syzkaller.appspot.com/x/.config?x=2ae1da3a7f4a6ba4
dashboard link: https://syzkaller.appspot.com/bug?extid=63859a31071a369082b1
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=117c72f0580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17ab7ea2580000

Reported-by: syzbot+63859a31071a369082b1@syzkaller.appspotmail.com
Fixes: cac1db8c3aad ("mm: optimize mprotect() by PTE batching")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection