linux-kernel - Re: [syzbot] INFO: task hung in hub_port

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Message-ID: <000000000000d5957405e90622e1@google.com>
Date:   Mon, 19 Sep 2022 04:37:27 -0700
From:   syzbot <syzbot+76629376e06e2c2ad626@...kaller.appspotmail.com>
To:     hdanton@...a.com, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] INFO: task hung in hub_port_init (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: { P3497 } 2645 jiffies s: 2025 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):

Tested on:

commit:         a6b44374 Merge branch 'for-next/core', remote-tracking..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=120d7937080000
kernel config:  https://syzkaller.appspot.com/x/.config?x=14bf9ec0df433b27
dashboard link: https://syzkaller.appspot.com/bug?extid=76629376e06e2c2ad626
compiler:       Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
patch:          https://syzkaller.appspot.com/x/patch.diff?x=11a15337080000