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From: Takashi Iwai <tiwai@suse.de>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: regressions@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [REGRESSION 6.0.x / 6.1.x] NULL dereferencing at tracing
Date: Mon, 31 Oct 2022 08:11:28 +0100	[thread overview]
Message-ID: <87h6zklb6n.wl-tiwai@suse.de> (raw)

Hi Steven,

we've got a bug report indicating the NULL dereference at the recent
tracing changes, showing at the start of KDE.  The details including
the dmesg are found at:
  https://bugzilla.opensuse.org/show_bug.cgi?id=1204705

It was reported at first for 6.0.3, and confirmed that the problem
persists with 6.1-rc, too.

The culprit seems to be the commit
f3ddb74ad0790030c9592229fb14d8c451f4e9a8
    tracing: Wake up ring buffer waiters on closing of the file
and reverting it seems fixing the problem.

Could you take a look?


thanks,

Takashi

             reply	other threads:[~2022-10-31  7:11 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-31  7:11 Takashi Iwai [this message]
2022-10-31  8:29 ` [REGRESSION 6.0.x / 6.1.x] NULL dereferencing at tracing Steven Noonan
2022-10-31  9:48 ` Steven Rostedt
2022-10-31  9:52   ` Takashi Iwai
2022-10-31 18:48 ` Steven Rostedt
2022-11-01  8:21   ` Takashi Iwai
2022-11-03 12:54 ` [REGRESSION 6.0.x / 6.1.x] NULL dereferencing at tracing #forregzbot Thorsten Leemhuis
     [not found] <e693eb6b-28d0-d091-3df3-60f2b591c0e7@posteo.de>
2022-10-31 20:47 ` Fwd: [REGRESSION 6.0.x / 6.1.x] NULL dereferencing at tracing postix
2022-11-02 15:57   ` postix
2022-11-02 16:03     ` Steven Rostedt
2022-11-02 16:36       ` postix
2022-11-02 16:39         ` Steven Rostedt

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