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From: Stanislav Meduna <stano@meduna.org>
To: "linux-rt-users@vger.kernel.org" <linux-rt-users@vger.kernel.org>,
	triplesquarednine@gmail.com
Cc: Linux ARM Kernel <linux-arm-kernel@lists.infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	bigeasy@linutronix.de, Steven Rostedt <rostedt@goodmis.org>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: BUG: spinlock trylock failure on UP - reverting timer patches helps
Date: Fri, 18 Apr 2014 00:55:19 +0200	[thread overview]
Message-ID: <53505BD7.9050004@meduna.org> (raw)
In-Reply-To: <53500184.4050309@meduna.org>

On 17.04.2014 18:29, Stanislav Meduna wrote:

> Note: the bug goes away reverting the very same patches that are
> helping the Jordan's problms. I did follow
> 
> http://www.spinics.net/lists/linux-rt-users/msg11639.html
> 
> and no BUG while booting anymore. I'll try to let it run some
> more time.

Erm.. nope

# (cat /proc/meminfo ; cat /proc/meminfo) |  grep KernelStack
KernelStack:        5920 kB
KernelStack:        5928 kB

# (cat /proc/meminfo ; cat /proc/meminfo) |  grep KernelStack
KernelStack:        5952 kB
KernelStack:        5960 kB

maybe interrupt nesting ad nauseum? How does one debug
such issues?

It is possible that my previous posting was also caused by this -
disregard, I'll post again if the problem persists.

Jordan, could you check whether your kernel stack remains
stable with only the 3 patches reverted?

Thanks
-- 
                                     Stano


  reply	other threads:[~2014-04-17 22:55 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <534C3606.7010206@meduna.org>
2014-04-14 23:45 ` BUG: spinlock trylock failure on UP, i.MX28 3.12.15-rt25 Stanislav Meduna
2014-04-15 22:08   ` Stanislav Meduna
2014-04-17 16:29     ` BUG: spinlock trylock failure on UP - reverting timer patches helps Stanislav Meduna
2014-04-17 22:55       ` Stanislav Meduna [this message]
2014-04-17 23:10         ` jordan
2014-04-18  1:15           ` jordan
2014-04-18 14:45           ` Stanislav Meduna
2014-04-18 15:09             ` jordan
2014-04-22 11:54     ` BUG: spinlock trylock failure on UP, i.MX28 3.12.15-rt25 Sebastian Andrzej Siewior
2014-04-22 13:46       ` Steven Rostedt
2014-04-22 14:09         ` Peter Zijlstra
2014-04-23  8:10           ` Sebastian Andrzej Siewior
2014-04-23  8:50             ` Peter Zijlstra
2014-04-22 16:51         ` Sebastian Andrzej Siewior
2014-04-22 17:48           ` Steven Rostedt
2014-04-22 18:16             ` Steven Rostedt
2014-04-23  7:14               ` Sebastian Andrzej Siewior
2014-04-23  8:49                 ` Peter Zijlstra
2014-04-23 12:15                 ` Steven Rostedt
2014-05-02 18:38               ` Sebastian Andrzej Siewior
2014-05-02 19:01                 ` Thomas Gleixner
2014-05-02 19:36                   ` Thomas Gleixner
2014-05-02 19:37                   ` Sebastian Andrzej Siewior

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