Re: [syzbot] [bcachefs?] kernel BUG in bch2_dev_btree_bitmap_mark

From: syzbot
Date: Sat Nov 02 2024 - 07:57:32 EST


syzbot has bisected this issue to:

commit 60f2b1bcf519416dbffee219132aa949d0c39d0e
Author: Kent Overstreet <kent.overstreet@xxxxxxxxx>
Date: Tue Apr 16 23:33:51 2024 +0000

bcachefs: Add asserts to bch2_dev_btree_bitmap_marked_sectors()

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13d4cb40580000
start commit: 6c52d4da1c74 Merge tag 'for-linus' of git://git.kernel.org..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=1034cb40580000
console output: https://syzkaller.appspot.com/x/log.txt?x=17d4cb40580000
kernel config: https://syzkaller.appspot.com/x/.config?x=f527353e21e067e8
dashboard link: https://syzkaller.appspot.com/bug?extid=e8eff054face85d7ea41
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14e972a7980000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15ead340580000

Reported-by: syzbot+e8eff054face85d7ea41@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 60f2b1bcf519 ("bcachefs: Add asserts to bch2_dev_btree_bitmap_marked_sectors()")

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