linux-kernel - Re: [syzbot] Monthly trace report (Oct 2024)

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Message-ID: <20241011120028.1e4ed71c@gandalf.local.home>
Date: Fri, 11 Oct 2024 12:00:28 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: syzbot <syzbot+list3bf21e6ac0139f8d008d@...kaller.appspotmail.com>
Cc: linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
 mhiramat@...nel.org, syzkaller-bugs@...glegroups.com, Jens Axboe
 <axboe@...nel.dk>, linux-block@...r.kernel.org, bpf@...r.kernel.org
Subject: Re: [syzbot] Monthly trace report (Oct 2024)

On Fri, 11 Oct 2024 08:25:29 -0700
syzbot <syzbot+list3bf21e6ac0139f8d008d@...kaller.appspotmail.com> wrote:

> Hello trace maintainers/developers,
> 
> This is a 31-day syzbot report for the trace subsystem.
> All related reports/information can be found at:
> https://syzkaller.appspot.com/upstream/s/trace
> 
> During the period, 1 new issues were detected and 0 were fixed.
> In total, 10 issues are still open and 38 have been fixed so far.
> 
> Some of the still happening issues:
> 
> Ref Crashes Repro Title
> <1> 34      Yes   INFO: task hung in blk_trace_ioctl (4)
>                   https://syzkaller.appspot.com/bug?extid=ed812ed461471ab17a0c

If you check the maintainers file, blktrace.c has:

BLOCK LAYER
M:      Jens Axboe <axboe@...nel.dk>
L:      linux-block@...r.kernel.org



> <2> 32      Yes   WARNING in bpf_get_stack_raw_tp
>                   https://syzkaller.appspot.com/bug?extid=ce35de20ed6652f60652

bpf_trace.c has:

M:      Alexei Starovoitov <ast@...nel.org>
M:      Daniel Borkmann <daniel@...earbox.net>
M:      Andrii Nakryiko <andrii@...nel.org>
R:      Martin KaFai Lau <martin.lau@...ux.dev>
R:      Eduard Zingerman <eddyz87@...il.com>
R:      Song Liu <song@...nel.org>
R:      Yonghong Song <yonghong.song@...ux.dev>
R:      John Fastabend <john.fastabend@...il.com>
R:      KP Singh <kpsingh@...nel.org>
R:      Stanislav Fomichev <sdf@...ichev.me>
R:      Hao Luo <haoluo@...gle.com>
R:      Jiri Olsa <jolsa@...nel.org>
L:      bpf@...r.kernel.org

> <3> 13      Yes   WARNING in get_probe_ref
>                   https://syzkaller.appspot.com/bug?extid=8672dcb9d10011c0a160
> <4> 6       Yes   INFO: task hung in blk_trace_remove (2)
>                   https://syzkaller.appspot.com/bug?extid=2373f6be3e6de4f92562
> <5> 4       Yes   possible deadlock in __mod_timer (4)
>                   https://syzkaller.appspot.com/bug?extid=83a876aef81c9a485ae8

None of these look like they are tracing infrastructure related.

-- Steve


> 
> ---
> This report is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
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> 
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> 
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> 
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