Re: [syzbot] [block?] BUG: sleeping function called from invalid context in unmap_mapping_folio

[syzbot]

syzbot has bisected this issue to:

commit 1760a1b5aacbe00dec464b1bf2b10443c10377ad
Author: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Date:   Thu Jan 30 10:00:45 2025 +0000

    mm/vmscan: use PG_dropbehind instead of PG_reclaim in shrink_folio_list()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14c2ef64580000
start commit:   40b8e93e17bf Add linux-next specific files for 20250204
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=16c2ef64580000
console output: https://syzkaller.appspot.com/x/log.txt?x=12c2ef64580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=ec880188a87c6aad
dashboard link: https://syzkaller.appspot.com/bug?extid=95f1db35defd8524f1dd
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16010df8580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12f078a4580000

Reported-by: syzbot+95f1db35defd8524f1dd@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 1760a1b5aacb ("mm/vmscan: use PG_dropbehind instead of PG_reclaim in shrink_folio_list()")

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