linux-kernel - Re: [syzbot] [bcachefs?] kernel BUG in bch2_fs_btree_write_buffer

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Message-ID: <671c9680.050a0220.2fdf0c.0224.GAE@google.com>
Date: Sat, 26 Oct 2024 00:13:04 -0700
From: syzbot <syzbot+e4b5080f1e963225063e@...kaller.appspotmail.com>
To: kent.overstreet@...ux.dev, linux-bcachefs@...r.kernel.org, 
	linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com, 
	terrelln@...com
Subject: Re: [syzbot] [bcachefs?] kernel BUG in bch2_fs_btree_write_buffer_exit

syzbot has bisected this issue to:

commit bf4baaa087e2be0279991f1dbf9acaa7a4c9148c
Author: Kent Overstreet <kent.overstreet@...ux.dev>
Date:   Sat Oct 5 21:37:02 2024 +0000

    bcachefs: Fix lockdep splat in bch2_accounting_read

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=106e6f57980000
start commit:   c2ee9f594da8 KVM: selftests: Fix build on on non-x86 archi..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=126e6f57980000
console output: https://syzkaller.appspot.com/x/log.txt?x=146e6f57980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=309bb816d40abc28
dashboard link: https://syzkaller.appspot.com/bug?extid=e4b5080f1e963225063e
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1218165f980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=13d0a8a7980000

Reported-by: syzbot+e4b5080f1e963225063e@...kaller.appspotmail.com
Fixes: bf4baaa087e2 ("bcachefs: Fix lockdep splat in bch2_accounting_read")

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