linux-kernel - Re: [syzbot] [bcachefs?] INFO: task hung in bch2_btree_node_update

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Message-ID: <67a326b4.050a0220.50516.0013.GAE@google.com>
Date: Wed, 05 Feb 2025 00:52:04 -0800
From: syzbot <syzbot+5ef4c078ccd6970db1b6@...kaller.appspotmail.com>
To: bfoster@...hat.com, kent.overstreet@...ux.dev, 
	linux-bcachefs@...r.kernel.org, linux-kernel@...r.kernel.org, 
	peterz@...radead.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [bcachefs?] INFO: task hung in bch2_btree_node_update_key
 (2)

syzbot suspects this issue was fixed by commit:

commit 66951e4860d3c688bfa550ea4a19635b57e00eca
Author: Peter Zijlstra <peterz@...radead.org>
Date:   Mon Jan 13 12:50:11 2025 +0000

    sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=11336318580000
start commit:   56e6a3499e14 Merge tag 'trace-v6.13-rc5' of git://git.kern..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=ba7cde9482d6bb6
dashboard link: https://syzkaller.appspot.com/bug?extid=5ef4c078ccd6970db1b6
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=144666c4580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1244e8b0580000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE

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