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From: syzbot <syzbot+aa7d098bd6fa788fae8e@syzkaller.appspotmail.com>
To: davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	syzkaller-bugs@googlegroups.com, vinicius.gomes@intel.com,
	xiyou.wangcong@gmail.com
Subject: INFO: rcu detected stall in corrupted (4)
Date: Fri, 04 Sep 2020 11:49:23 -0700	[thread overview]
Message-ID: <000000000000cedbc405ae81531f@google.com> (raw)

Hello,

syzbot found the following issue on:

HEAD commit:    0f091e43 netlabel: remove unused param from audit_log_form..
git tree:       net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=14551a71900000
kernel config:  https://syzkaller.appspot.com/x/.config?x=61025c6fd3261bb1
dashboard link: https://syzkaller.appspot.com/bug?extid=aa7d098bd6fa788fae8e
compiler:       gcc (GCC) 10.1.0-syz 20200507
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14eeda25900000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=161472f5900000

The issue was bisected to:

commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22
Author: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Date:   Sat Sep 29 00:59:43 2018 +0000

    tc: Add support for configuring the taprio scheduler

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13096476900000
console output: https://syzkaller.appspot.com/x/log.txt?x=17096476900000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+aa7d098bd6fa788fae8e@syzkaller.appspotmail.com
Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler")

hrtimer: interrupt took 18040217 ns
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 ticks this GP) idle=4ae/0/0x1 softirq=7665/7665 fqs=3 
	(t=11294 jiffies g=9289 q=363)


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches

             reply	other threads:[~2020-09-04 18:49 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-04 18:49 syzbot [this message]
2021-03-05  7:58 ` INFO: rcu detected stall in corrupted (4) Dmitry Vyukov
2021-03-05 22:27   ` Vinicius Costa Gomes
     [not found] <77217e8a-0b61-495c-963e-4c4e783fb202@gmail.com>
2026-05-22 14:28 ` syzbot
     [not found] <7115ef32-e59e-4da4-978d-5488a20a0f7b@gmail.com>
2026-05-22 14:32 ` syzbot

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