linux-kernel - 2.6.25.7 + rt6 = BUGs (sleeping function called from invalid context)

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Date:	Tue, 17 Jun 2008 14:40:57 +0200
From:	Fernando Lopez-Lezcano <nando@...ma.Stanford.EDU>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Fernando Pablo Lopez-Lezcano <nando@...ma.Stanford.EDU>,
	linux-kernel@...r.kernel.org
Subject: 2.6.25.7 + rt6 = BUGs (sleeping function called from invalid
	context)

Hi Ingo, just trying the latest rt6 (for 2.6.25) on top of 2.6.25.7 and
I'm getting a lot these (1 a second?):

BUG: sleeping function called from invalid context swapper(0) at
kernel/rtmutex.c:739
in_atomic():1 [00000001], irqs_disabled():0
Pid: 0, comm: swapper Not tainted 2.6.25.7-1.rt6.1.fc8.ccrma.i686.rt #1
 [<c041f5ae>] __might_sleep+0xed/0xf4
 [<c0637bec>] __rt_spin_lock+0x24/0x61
 [<c0637c31>] rt_spin_lock+0x8/0xa
 [<c043ce6d>] pm_qos_requirement+0x10/0x29
 [<c05aac94>] menu_select+0x55/0x79
 [<c05aa222>] ? cpuidle_idle_call+0x0/0x8e
 [<c05aa263>] cpuidle_idle_call+0x41/0x8e
 [<c05aa222>] ? cpuidle_idle_call+0x0/0x8e
 [<c040466a>] cpu_idle+0xa4/0xfb
 [<c0633447>] start_secondary+0x15c/0x161
 [<c0403664>] ? lguest_time_init+0xa3/0xa3f
 =======================

(please cc me, I can't currently read lkml)
-- Fernando


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