linux-kernel - Re: [syzbot] [bcachefs?] kernel BUG in bch2_btree_pos_to

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Message-ID: <66f94daf.050a0220.6bad9.0012.GAE@google.com>
Date: Sun, 29 Sep 2024 05:53:03 -0700
From: syzbot <syzbot+cf7b2215b5d70600ec00@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org, pz010001011111@...ton.me, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [bcachefs?] kernel BUG in bch2_btree_pos_to_text

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
BUG: Bad rss-counter state

bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 8
bcachefs (loop0): unshutdown complete, journal seq 9
bcachefs (loop0): done going read-only, filesystem not clean
bcachefs (loop0): shutdown complete
BUG: Bad rss-counter state mm:ffff888011da8980 type:MM_SWAPENTS val:11
bcachefs (loop0): shutting down
bcachefs (loop0): going read-only
bcachefs (loop0): finished waiting for writes to stop
bcachefs (loop0): flushing journal and stopping allocators, journal seq 8
bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 8
bcachefs (loop0): unshutdown complete, journal seq 9
bcachefs (loop0): done going read-only, filesystem not clean
bcachefs (loop0): shutdown complete
bcachefs (loop0): shutting down
bcachefs (loop0): going read-only
bcachefs (loop0): finished waiting for writes to stop
bcachefs (loop0): flushing journal and stopping allocators, journal seq 8
bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 8
bcachefs (loop0): unshutdown complete, journal seq 9
bcachefs (loop0): done going read-only, filesystem not clean
bcachefs (loop0): shutdown complete
bcachefs (loop0): shutting down
bcachefs (loop0): going read-only
bcachefs (loop0): finished waiting for writes to stop
bcachefs (loop0): flushing journal and stopping allocators, journal seq 8
bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 8
bcachefs (loop0): unshutdown complete, journal seq 9
bcachefs (loop0): done going read-only, filesystem not clean
bcachefs (loop0): shutdown complete
bcachefs (loop0): shutting down
bcachefs (loop0): going read-only
bcachefs (loop0): finished waiting for writes to stop
bcachefs (loop0): flushing journal and stopping allocators, journal seq 8
bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 8
bcachefs (loop0): unshutdown complete, journal seq 9
bcachefs (loop0): done going read-only, filesystem not clean
bcachefs (loop0): shutdown complete
bcachefs (loop0): shutting down
bcachefs (loop0): going read-only
bcachefs (loop0): finished waiting for writes to stop
bcachefs (loop0): flushing journal and stopping allocators, journal seq 8
bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 8
bcachefs (loop0): unshutdown complete, journal seq 9
bcachefs (loop0): done going read-only, filesystem not clean
bcachefs (loop0): shutdown complete


Tested on:

commit:         3efc5736 Merge tag 'for-linus' of git://git.kernel.org..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=11360ea9980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=a4fcb065287cdb84
dashboard link: https://syzkaller.appspot.com/bug?extid=cf7b2215b5d70600ec00
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=17a03e80580000