From: Song Liu <songliubraving@fb.com>
To: syzbot <syzbot+23fe48cbe532abffa52e@syzkaller.appspotmail.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
"daniel@iogearbox.net" <daniel@iogearbox.net>,
"davem@davemloft.net" <davem@davemloft.net>,
Josef Bacik <jbacik@fb.com>,
"jolsa@redhat.com" <jolsa@redhat.com>,
Kernel Team <Kernel-team@fb.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"mingo@kernel.org" <mingo@kernel.org>,
"mingo@redhat.com" <mingo@redhat.com>,
"namhyung@kernel.org" <namhyung@kernel.org>,
"peterz@infradead.org" <peterz@infradead.org>,
"rostedt@goodmis.org" <rostedt@goodmis.org>,
"syzkaller-bugs@googlegroups.com"
<syzkaller-bugs@googlegroups.com>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"torvalds@linux-foundation.org" <torvalds@linux-foundation.org>,
Yonghong Song <yhs@fb.com>
Subject: Re: WARNING in perf_group_attach
Date: Fri, 22 Nov 2019 18:22:59 +0000 [thread overview]
Message-ID: <0338F995-1B84-4825-A7C9-ADDC0076A5F2@fb.com> (raw)
In-Reply-To: <0000000000004c40290597f1e91e@google.com>
> On Nov 22, 2019, at 8:29 AM, syzbot <syzbot+23fe48cbe532abffa52e@syzkaller.appspotmail.com> wrote:
>
> syzbot has bisected this bug to:
>
> commit 33ea4b24277b06dbc55d7f5772a46f029600255e
> Author: Song Liu <songliubraving@fb.com>
> Date: Wed Dec 6 22:45:16 2017 +0000
>
> perf/core: Implement the 'perf_uprobe' PMU
>
> bisection log: https://urldefense.proofpoint.com/v2/url?u=https-3A__syzkaller.appspot.com_x_bisect.txt-3Fx-3D1038fecae00000&d=DwIBaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=i6WobKxbeG3slzHSIOxTVtYIJw7qjCE6S0spDTKL-J4&m=twva4o7mjqFOvS4tIPaO-5jjo-XAwT9qjmMqY7gRsLM&s=3ABayY9CyfQkmQs0KgB2fcFws0p7utMNa7tcrLE0b4Y&e=start commit: 0072a0c1 Merge tag 'media/v4.20-4' of git://git.kernel.org..
> git tree: upstream
> final crash: https://urldefense.proofpoint.com/v2/url?u=https-3A__syzkaller.appspot.com_x_report.txt-3Fx-3D1238fecae00000&d=DwIBaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=i6WobKxbeG3slzHSIOxTVtYIJw7qjCE6S0spDTKL-J4&m=twva4o7mjqFOvS4tIPaO-5jjo-XAwT9qjmMqY7gRsLM&s=CZ1NX6DT4kikiKc9qfHrpHrBGrPBNOzUUwcp-avrDlo&e=console output: https://urldefense.proofpoint.com/v2/url?u=https-3A__syzkaller.appspot.com_x_log.txt-3Fx-3D1438fecae00000&d=DwIBaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=i6WobKxbeG3slzHSIOxTVtYIJw7qjCE6S0spDTKL-J4&m=twva4o7mjqFOvS4tIPaO-5jjo-XAwT9qjmMqY7gRsLM&s=Gbwfq2mU_2xkXjM2LVOht4iV94BqNlAVlldmf99YE2o&e=kernel config: https://urldefense.proofpoint.com/v2/url?u=https-3A__syzkaller.appspot.com_x_.config-3Fx-3Db9cc5a440391cbfd&d=DwIBaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=i6WobKxbeG3slzHSIOxTVtYIJw7qjCE6S0spDTKL-J4&m=twva4o7mjqFOvS4tIPaO-5jjo-XAwT9qjmMqY7gRsLM&s=80FYgyg5lxOA80Ae-t5h5madX7fI4JOulTaVL6A5OIE&e=dashboard link: https://urldefense.proofpoint.com/v2/url?u=https-3A__syzkaller.appspot.com_bug-3Fextid-3D23fe48cbe532abffa52e&d=DwIBaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=i6WobKxbeG3slzHSIOxTVtYIJw7qjCE6S0spDTKL-J4&m=twva4o7mjqFOvS4tIPaO-5jjo-XAwT9qjmMqY7gRsLM&s=CLG4xu3n98RYL4iBP5vb_BVLur-IxZkzQf5KMgJKEBQ&e=syz repro: https://urldefense.proofpoint.com/v2/url?u=https-3A__syzkaller.appspot.com_x_repro.syz-3Fx-3D135e93eb400000&d=DwIBaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=i6WobKxbeG3slzHSIOxTVtYIJw7qjCE6S0spDTKL-J4&m=twva4o7mjqFOvS4tIPaO-5jjo-XAwT9qjmMqY7gRsLM&s=rE9GDnbBf2V3RMoW8TmNFJxPVfG2W27IzFAQ4534Yok&e=C reproducer: https://urldefense.proofpoint.com/v2/url?u=https-3A__syzkaller.appspot.com_x_repro.c-3Fx-3D13189415400000&d=DwIBaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=i6WobKxbeG3slzHSIOxTVtYIJw7qjCE6S0spDTKL-J4&m=twva4o7mjqFOvS4tIPaO-5jjo-XAwT9qjmMqY7gRsLM&s=zu43yb0MPn0VZeQKwG-EDUHqYYgHgJhJrRcYp6dl-dE&e=
> Reported-by: syzbot+23fe48cbe532abffa52e@syzkaller.appspotmail.com
> Fixes: 33ea4b24277b ("perf/core: Implement the 'perf_uprobe' PMU")
>
> For information about bisection process see: https://urldefense.proofpoint.com/v2/url?u=https-3A__goo.gl_tpsmEJ-23bisection&d=DwIBaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=i6WobKxbeG3slzHSIOxTVtYIJw7qjCE6S0spDTKL-J4&m=twva4o7mjqFOvS4tIPaO-5jjo-XAwT9qjmMqY7gRsLM&s=YWXIJgdau0PZoF8t4mWq-2xQY88lKIzCF0JnR-ZM4Ao&e=
Thanks for the report. I will look into the fix.
Song
next prev parent reply other threads:[~2019-11-22 18:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-28 12:51 syzbot
2019-11-22 16:29 ` syzbot
2019-11-22 18:22 ` Song Liu [this message]
2019-12-08 10:17 ` syzbot
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