From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Sergei Poselenov <sposelenov@emcraft.com>
Cc: linux-rt-users@vger.kernel.org
Subject: Re: kernel crash with ARM64 5.4.47 preempt_rt
Date: Fri, 8 Jan 2021 09:29:11 +0100 [thread overview]
Message-ID: <20210108082911.cz7oropmnezhqx5p@linutronix.de> (raw)
In-Reply-To: <20210107164902.5guoavadivwugsz3@linutronix.de>
On 2021-01-07 17:49:02 [+0100], To Sergei Poselenov wrote:
> On 2020-12-30 14:09:17 [+0300], Sergei Poselenov wrote:
> > Hello,
> Hi,
>
> > We applied patch-5.4.47-rt28.patch to NXP 5.4.47-2.2.0 release ARM64
> > kernel running on IMX8M NANO chip, and enabled CONFIG_PRREMPT_RT. We
> > are observing the following crash (below), on a system running an
> > application that communicates with some SPI device. Obviously, the
> > system doesn't crash without the patch applied.
> >
> > Any thoughts on the reason of the failure would be appreciated. How would we start debugging the problem?
>
> Can you give v5.10 a try v5.10 and/or enable SLUB_DEBUG?
Now that I look at it again, you need update to more recent v5.4-RT
kernel. The current is v5.4.84-rt47, the bug was fixed in v5.4.54-rt33.
> > Thanks!
> >
> > Regards,
> > Sergei Poselenov,
> > Emcraft Systems
>
Sebastian
next prev parent reply other threads:[~2021-01-08 8:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-30 11:09 kernel crash with ARM64 5.4.47 preempt_rt Sergei Poselenov
2021-01-07 16:49 ` Sebastian Andrzej Siewior
2021-01-08 8:29 ` Sebastian Andrzej Siewior [this message]
2021-01-08 9:15 ` Sergei Poselenov
2021-01-08 9:28 ` Sebastian Andrzej Siewior
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