Re: [syzbot] [exfat?] INFO: task hung in fat_write_inode

From: syzbot
Date: Fri Nov 03 2023 - 08:27:12 EST


syzbot has bisected this issue to:

commit fb96458067a8043c256befe4bfe4fb3ebc81de1b
Author: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Date: Mon Oct 16 20:10:48 2023 +0000

buffer: return bool from grow_dev_folio()

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=154b4ef7680000
start commit: 2dac75696c6d Add linux-next specific files for 20231018
git tree: linux-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=174b4ef7680000
console output: https://syzkaller.appspot.com/x/log.txt?x=134b4ef7680000
kernel config: https://syzkaller.appspot.com/x/.config?x=6f8545e1ef7a2b66
dashboard link: https://syzkaller.appspot.com/bug?extid=6f75830acb2e4cdc8e50
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=148fed9d680000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1019f523680000

Reported-by: syzbot+6f75830acb2e4cdc8e50@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: fb96458067a8 ("buffer: return bool from grow_dev_folio()")

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