linux-kernel - Re: [syzbot] INFO: rcu detected stall in batadv_nc

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Message-ID: <000000000000f8f71b05eb1bb924@google.com>
Date:   Sat, 15 Oct 2022 17:13:20 -0700
From:   syzbot <syzbot+69904c3b4a09e8fa2e1b@...kaller.appspotmail.com>
To:     hdanton@...a.com, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] INFO: rcu detected stall in batadv_nc_worker (3)

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: { P4077 } 2636 jiffies s: 2521 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):

Tested on:

commit:         55be6084 Merge tag 'timers-core-2022-10-05' of git://g..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=12ab7aaa880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=df75278aabf0681a
dashboard link: https://syzkaller.appspot.com/bug?extid=69904c3b4a09e8fa2e1b
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=14854b8a880000