From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: TALBI Ahmed -EXT <ahmed.talbi-ext@alstom.com>
Cc: "xenomai@xenomai.org" <xenomai@xenomai.org>
Subject: Re: [Xenomai] system freeze on IMX6
Date: Tue, 17 May 2016 11:41:27 +0200 [thread overview]
Message-ID: <20160517094127.GC2668@hermes.click-hack.org> (raw)
In-Reply-To: <28dcd6ac421c4696a7f60ccef160c8ef@AM3PR48MB0177.041d.mgd.msft.net>
On Tue, May 17, 2016 at 09:11:09AM +0000, TALBI Ahmed -EXT wrote:
> In the logs I attached I can see that xnlock is locked in do_taskexit_event (by CPU0) and then in the same context we try to lock it a second time in xintr_clock_handler. May this be the issue ? or is xnlock a recursive lock ?
You are misreading the logs. xnintr_clock_handler tries to get the
lock on one cpu, while do_taskexit_event got it on another cpu. The
root cause of the problem is a fault when xnlock_spin is trying to
print some message. Probably because it has spin for too long. You
can try to disable spinlock debugging, but I am afraid you will get
a lockup instead.
--
Gilles.
https://click-hack.org
next prev parent reply other threads:[~2016-05-17 9:41 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-13 13:25 [Xenomai] system freeze on IMX6 TALBI Ahmed -EXT
2016-05-14 12:30 ` Gilles Chanteperdrix
2016-05-14 13:01 ` Rolf Wöhrmann
2016-05-17 9:11 ` TALBI Ahmed -EXT
2016-05-17 9:31 ` Gilles Chanteperdrix
2016-05-17 9:41 ` Gilles Chanteperdrix [this message]
2016-05-17 9:52 ` TALBI Ahmed -EXT
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