ron.com>; catalin.mari...@arm.com;
> will.dea...@arm.com; r...@lists.rocketboards.org; linux-
> ker...@vger.kernel.org; mi...@redhat.com; linux-arm-
> ker...@lists.infradead.org
> Subject: Re: ftrace function_graph causes system crash
>
> On Wed, 21 Sep 2016 17:13:07 +0800
&
rds.org; linux-
> ker...@vger.kernel.org; mi...@redhat.com; linux-arm-
> ker...@lists.infradead.org
> Subject: Re: ftrace function_graph causes system crash
>
> On Wed, 21 Sep 2016 17:13:07 +0800
> Jisheng Zhang wrote:
>
> > I'm not sure whether the commit d6df3
On Wed, 21 Sep 2016 17:13:07 +0800
Jisheng Zhang wrote:
> I'm not sure whether the commit d6df3576e6b4
> ("clocksource/drivers/arm_global_timer
> : Prevent ftrace recursion") can fix this issue.
>
> this commit is merged since v4.3, I noticed your kernel version is v4.0
On Wed, 21 Sep 2016 17:13:07 +0800
Jisheng Zhang wrote:
> I'm not sure whether the commit d6df3576e6b4
> ("clocksource/drivers/arm_global_timer
> : Prevent ftrace recursion") can fix this issue.
>
> this commit is merged since v4.3, I noticed your kernel version is v4.0
BTW, yes, that would
On Wed, 21 Sep 2016 07:50:58 +
"Bean Huo (beanhuo)" wrote:
>
> Hi, Steve
> Thanks very much! This is a very useful trace tool, I now know the problem
> function,
> It is gt_counter_read, if not trace this function, ftrace function_graph work
> well.
> Do you know now
On Wed, 21 Sep 2016 07:50:58 +
"Bean Huo (beanhuo)" wrote:
>
> Hi, Steve
> Thanks very much! This is a very useful trace tool, I now know the problem
> function,
> It is gt_counter_read, if not trace this function, ftrace function_graph work
> well.
> Do you know now how to deeply debug
lt;bean...@micron.com>
> > Cc: Zoltan Szubbocsev (zszubbocsev) <zszubboc...@micron.com>;
> > catalin.mari...@arm.com; will.dea...@arm.com; r...@lists.rocketboards.org;
> > linux-kernel@vger.kernel.org; mi...@redhat.com; linux-arm-
> > ker...@lists.infradead.org
> >
eanhuo)
> > Cc: Zoltan Szubbocsev (zszubbocsev) ;
> > catalin.mari...@arm.com; will.dea...@arm.com; r...@lists.rocketboards.org;
> > linux-kernel@vger.kernel.org; mi...@redhat.com; linux-arm-
> > ker...@lists.infradead.org
> > Subject: Re: ftrace function_graph causes system
alin.mari...@arm.com; will.dea...@arm.com; r...@lists.rocketboards.org;
> linux-kernel@vger.kernel.org; mi...@redhat.com; linux-arm-
> ker...@lists.infradead.org
> Subject: Re: ftrace function_graph causes system crash
>
> On Tue, 20 Sep 2016 13:10:39 +
> "Bean Huo (beanh
s.rocketboards.org;
> linux-kernel@vger.kernel.org; mi...@redhat.com; linux-arm-
> ker...@lists.infradead.org
> Subject: Re: ftrace function_graph causes system crash
>
> On Tue, 20 Sep 2016 13:10:39 +
> "Bean Huo (beanhuo)" wrote:
>
> > Hi, al
On Tue, 20 Sep 2016 13:10:39 +
"Bean Huo (beanhuo)" wrote:
> Hi, all
> I just use ftrace to do some latency study, found that function_graph can not
> Work, as long as enable it, will cause kernel panic. I searched this online.
> Found that there are also some cause the
On Tue, 20 Sep 2016 13:10:39 +
"Bean Huo (beanhuo)" wrote:
> Hi, all
> I just use ftrace to do some latency study, found that function_graph can not
> Work, as long as enable it, will cause kernel panic. I searched this online.
> Found that there are also some cause the same as mine. I am a
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