Re: [REGRESSION 6.0.x / 6.1.x] NULL dereferencing at tracing

From: Takashi Iwai
Date: Mon Oct 31 2022 - 05:52:24 EST


On Mon, 31 Oct 2022 10:48:37 +0100,
Steven Rostedt wrote:
>
> On Mon, 31 Oct 2022 08:11:28 +0100
> Takashi Iwai <tiwai@xxxxxxx> wrote:
>
> > 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 for the report, can you send me your .config.

Here it is: for 6.0.x and 6.1-rc3.


thanks,

Takashi

Attachment: config-6.0.5
Description: Binary data

Attachment: config-6.1-rc3
Description: Binary data