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From: syzbot <syzbot+7692cea7450c97fa2a0a@syzkaller.appspotmail.com>
To: acme@kernel.org, acme@redhat.com,
	alexander.shishkin@linux.intel.com, ast@kernel.org,
	bpf@vger.kernel.org, daniel@iogearbox.net, eranian@google.com,
	jolsa@redhat.com, kafai@fb.com, linux-kernel@vger.kernel.org,
	mark.rutland@arm.com, mingo@kernel.org, mingo@redhat.com,
	namhyung@kernel.org, netdev@vger.kernel.org,
	peterz@infradead.org, songliubraving@fb.com,
	syzkaller-bugs@googlegroups.com, tglx@linutronix.de,
	torvalds@linux-foundation.org, vincent.weaver@maine.edu,
	yhs@fb.com
Subject: Re: INFO: task hung in perf_event_free_task
Date: Tue, 30 Jul 2019 11:44:00 -0700	[thread overview]
Message-ID: <0000000000005d23d0058eea64a6@google.com> (raw)
In-Reply-To: <00000000000057102e058e722bba@google.com>

syzbot has bisected this bug to:

commit 1cf8dfe8a661f0462925df943140e9f6d1ea5233
Author: Peter Zijlstra <peterz@infradead.org>
Date:   Sat Jul 13 09:21:25 2019 +0000

     perf/core: Fix race between close() and fork()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1523f40c600000
start commit:   c6dd78fc Merge branch 'x86-urgent-for-linus' of git://git...
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=1723f40c600000
console output: https://syzkaller.appspot.com/x/log.txt?x=1323f40c600000
kernel config:  https://syzkaller.appspot.com/x/.config?x=7937b718ddac333b
dashboard link: https://syzkaller.appspot.com/bug?extid=7692cea7450c97fa2a0a
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17e888cc600000

Reported-by: syzbot+7692cea7450c97fa2a0a@syzkaller.appspotmail.com
Fixes: 1cf8dfe8a661 ("perf/core: Fix race between close() and fork()")

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

  reply	other threads:[~2019-07-30 18:44 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-24 19:18 INFO: task hung in perf_event_free_task syzbot
2019-07-30 18:44 ` syzbot [this message]
2021-04-20  9:10 ` [syzbot] " syzbot
2021-04-21  9:29   ` Peter Zijlstra
2021-04-21 12:26     ` Dmitry Vyukov
2021-04-21 12:35       ` Dmitry Vyukov

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