linux-kernel - Re: [syzbot] [mm?] INFO: rcu detected stall in vhci

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Message-ID: <68404ece.a00a0220.d4325.000d.GAE@google.com>
Date: Wed, 04 Jun 2025 06:49:02 -0700
From: syzbot <syzbot+46c3d1706c2d2688baba@...kaller.appspotmail.com>
To: akpm@...ux-foundation.org, bigeasy@...utronix.de, bsegall@...gle.com, 
	dietmar.eggemann@....com, edumazet@...gle.com, juri.lelli@...hat.com, 
	kerneljasonxing@...il.com, kuba@...nel.org, linux-bluetooth@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-mm@...ck.org, luiz.dentz@...il.com, 
	marcel@...tmann.org, mgorman@...e.de, mingo@...nel.org, mingo@...hat.com, 
	pabeni@...hat.com, peterz@...radead.org, rostedt@...dmis.org, 
	syzkaller-bugs@...glegroups.com, tglx@...utronix.de, 
	vincent.guittot@...aro.org, vschneid@...hat.com
Subject: Re: [syzbot] [mm?] INFO: rcu detected stall in vhci_release

syzbot suspects this issue was fixed by commit:

commit 6d71a9c6160479899ee744d2c6d6602a191deb1f
Author: Peter Zijlstra <peterz@...radead.org>
Date:   Thu Jan 9 10:59:59 2025 +0000

    sched/fair: Fix EEVDF entity placement bug causing scheduling lag

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=15a9780c580000
start commit:   abf2050f51fd Merge tag 'media/v6.12-1' of git://git.kernel..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=2a8c36c5e2b56016
dashboard link: https://syzkaller.appspot.com/bug?extid=46c3d1706c2d2688baba
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10564c80580000

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

#syz fix: sched/fair: Fix EEVDF entity placement bug causing scheduling lag

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