From: Vladimir Oltean <olteanv@gmail.com>
To: Kurt Kanzenbach <kurt.kanzenbach@linutronix.de>
Cc: linux-rt-users@vger.kernel.org,
lkml <linux-kernel@vger.kernel.org>,
rcu@vger.kernel.org, Colin King <colin.king@canonical.com>
Subject: Re: stress-ng --hrtimers hangs system
Date: Wed, 10 Jun 2020 17:37:22 +0300 [thread overview]
Message-ID: <CA+h21hp8ANbZw63UAy5cDx389j6pSOHUG7t1mR+rbQcrFLROyw@mail.gmail.com> (raw)
In-Reply-To: <87y2ovzcmd.fsf@kurt>
Hi Kurt,
On Wed, 10 Jun 2020 at 08:58, Kurt Kanzenbach
<kurt.kanzenbach@linutronix.de> wrote:
>
> Hi Vladimir,
>
> On Tue Jun 09 2020, Vladimir Oltean wrote:
> > Just out of curiosity, what and how many CPU cores does your ARM64 box
> > have, and what frequency are you running them at?
> > Mine is a dual-core A72 machine running at 1500 MHz.
>
> That particular machine has a dual core Cortex A53 running at 1GHz.
>
> Thanks,
> Kurt
Ok, I just noticed that you said "v5.6*-rt*".
So I re-tested that 5.4 downstream kernel again that hanged before,
just applied the -rt1 patchset on top. And it's actually working fine
now, no hangs, no RCU stalls, no need to reduce sched_rt_runtime_us.
So maybe it's something related to the config?
Thanks,
-Vladimir
next prev parent reply other threads:[~2020-06-10 14:37 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-05 1:47 stress-ng --hrtimers hangs system Vladimir Oltean
2020-06-05 3:20 ` Paul E. McKenney
2020-06-05 10:12 ` Vladimir Oltean
2020-06-05 12:57 ` Kurt Kanzenbach
2020-06-05 13:19 ` Vladimir Oltean
2020-06-09 16:37 ` Vladimir Oltean
2020-06-10 5:57 ` Kurt Kanzenbach
2020-06-10 14:37 ` Vladimir Oltean [this message]
2020-06-12 0:49 ` [EXT] " Jiafei Pan
2020-06-20 8:08 ` Kurt Kanzenbach
2020-06-22 2:30 ` Jiafei Pan
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