linux-kernel - Re: [syzbot] [bcachefs?] kernel BUG in bch2_dev_btree_bitmap

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Message-ID: <67261390.050a0220.3c8d68.0976.GAE@google.com>
Date: Sat, 02 Nov 2024 04:57:04 -0700
From: syzbot <syzbot+e8eff054face85d7ea41@...kaller.appspotmail.com>
To: anupnewsmail@...il.com, bfoster@...hat.com, devnull@...nel.org, 
	john@...ffel.org, kent.overstreet@...ux.dev, lihongbo22@...wei.com, 
	linux-bcachefs@...r.kernel.org, 
	linux-kernel-mentees@...ts.linuxfoundation.org, linux-kernel@...r.kernel.org, 
	manas18244@...td.ac.in, skhan@...uxfoundation.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [bcachefs?] kernel BUG in bch2_dev_btree_bitmap_mark

syzbot has bisected this issue to:

commit 60f2b1bcf519416dbffee219132aa949d0c39d0e
Author: Kent Overstreet <kent.overstreet@...ux.dev>
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@...kaller.appspotmail.com
Fixes: 60f2b1bcf519 ("bcachefs: Add asserts to bch2_dev_btree_bitmap_marked_sectors()")

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