linux-kernel - Re: [syzbot] [net?] INFO: rcu detected stall in fq_pie

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Date: Thu, 28 Dec 2023 04:35:06 -0800
From: syzbot <syzbot+15c3ba3f7ca8ced0914d@...kaller.appspotmail.com>
To: hdanton@...a.com, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [net?] INFO: rcu detected stall in fq_pie_timer (2)

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
INFO: rcu detected stall in corrupted

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P5978 } 2756 jiffies s: 3785 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):

Tested on:

commit:         f5837722 Merge tag 'mm-hotfixes-stable-2023-12-27-15-0..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
console output: https://syzkaller.appspot.com/x/log.txt?x=1743f3e9e80000
kernel config:  https://syzkaller.appspot.com/x/.config?x=c7bcb8f62f1e2c3e
dashboard link: https://syzkaller.appspot.com/bug?extid=15c3ba3f7ca8ced0914d
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=16684981e80000