Re: BUG: scheduling while atomic: chcpu/6197/0x00000002

From: Thomas Sattler
Date: Thu Jun 28 2012 - 01:58:59 EST


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

Attachment: config.gz
Description: application/gzip