linux-kernel - Re: BUG: scheduling while atomic: chcpu/6197/0x00000002

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Date:	Thu, 28 Jun 2012 07:58:15 +0200
From:	Thomas Sattler <sattler@....uni-frankfurt.de>
To:	Borislav Petkov <bp@...en8.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: BUG: scheduling while atomic: chcpu/6197/0x00000002

Am 27.06.2012 19:46, schrieb Borislav Petkov:
> On Wed, Jun 27, 2012 at 01:41:25PM +0200, Thomas Sattler wrote:
>> Linux dragon 3.4.4-rt13 #2 SMP PREEMPT Tue Jun 26 12:22:23 CEST 2012
>> i686 Intel(R) Core(TM)2 CPU 6300 @ 1.86GHz GenuineIntel GNU/Linux
>>
>> still BUG message in dmesg:
>>
>> [  105.585086] BUG: scheduling while atomic: chcpu/2817/0x00000002
>> [  105.585090] Modules linked in: loop rfcomm bnep btusb hid_microsoft
>> usbhid hid uhci_hcd ehci_hcd 3c59x usbcore e1000e mii usb_common sg
>> [  105.585109] Pid: 2817, comm: chcpu Not tainted 3.4.4-rt13 #2
>> [  105.585111] Call Trace:
>> [  105.585119]  [<c103df4d>] __schedule_bug+0x3d/0x42
>> [  105.585124]  [<c1355474>] __schedule+0x68/0x571
>> [  105.585130]  [<c1045840>] ? enqueue_entity+0x313/0x3d8
>> [  105.585134]  [<c1355a22>] schedule+0x60/0x70
>> [  105.585138]  [<c1354a42>] schedule_timeout+0x17/0x160
>> [  105.585142]  [<c103ed57>] ? check_preempt_curr+0x29/0x64
>> [  105.585146]  [<c135532d>] wait_for_common+0xa3/0xff
>> [  105.585150]  [<c10412e2>] ? try_to_wake_up+0x391/0x391
>> [  105.585154]  [<c135540a>] wait_for_completion+0x12/0x14
>> [  105.585158]  [<c103781c>] kthread_create_on_node+0x71/0xb5
>> [  105.585162]  [<c102542c>] ? put_online_cpus+0x44/0x44
>> [  105.585167]  [<c1350101>] ? init_amd+0x42f/0x64f
> 				 ^^^^^^^^
> 
> AFAICT, this shouldn't run on Intel hw. Can you send your .config.

/proc/config.gz is attached. Please note, that it's an -rt kernel.

Thomas

Download attachment "config.gz" of type "application/gzip" (15178 bytes)