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Subject: Re: rt-kernel 3.0.14-rt31: BUG: sleeping function called from
 invalid context
From: Steven Rostedt <rostedt@goodmis.org>
To: John Kacur <jkacur@redhat.com>
Cc: Karsten Wiese <fzuuzf@googlemail.com>, LKML <linux-kernel@vger.kernel.org>,
        RT <linux-rt-users@vger.kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
        Peter Zijlstra <peterz@infradead.org>
Date: Thu, 19 Jan 2012 11:38:37 -0500
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On Thu, 2012-01-19 at 17:16 +0100, John Kacur wrote:

> I'm testing v3.0.14-rt32-rc1, and it greatly reduced the number of
> these, but I still got one during boot.
> 
> [   11.938649] BUG: sleeping function called from invalid context at
> /home/jkacur/rt.linux.git/kernel/rtmutex.c:645
> [   11.938651] in_atomic(): 1, irqs_disabled(): 1, pid: 168, name: irq/9-acpi
> [   11.938653] 1 lock held by irq/9-acpi/168:
> [   11.938653]  #0:  (acpi_gbl_gpe_lock){......}, at:
> [<ffffffff8123881d>] acpi_ev_gpe_detect+0x31/0x110

Could you test 3.2-rt. If that has the issue then we know we have more
to fix. If not, we know I missed a patch.

-- Steve