[PlanetCCRMA] CCRMA - Kernel Bug ?

Spencer Goh dymaxion at spencergoh.com
Fri Mar 19 08:01:21 PDT 2010

I noticed this in my dmesg output...  are you aware of this problem?  Is
there something wrong with the CCRMA kernel?
Should I be worried?  Appears to be related to my network card driver [igb]
and the Intel Direct Cache Access [dca] module.

I have installed the same kernel to several machines and am seeing the same
Anyone else seen anything similar?


BUG: sleeping function called from invalid context at kernel/rtmutex.c:684
in_atomic(): 1, irqs_disabled(): 0, pid: 7, name: sirq-net-rx/0
Pid: 7, comm: sirq-net-rx/0 Tainted: G   M #1
Call Trace:
 [<ffffffff81042002>] __might_sleep+0xe6/0xe8
 [<ffffffff81083ade>] rt_spin_lock_fastlock.clone.1+0x34/0x79
 [<ffffffff814514bd>] rt_spin_lock+0xe/0x10
 [<ffffffffa002b1ac>] dca_common_get_tag+0x3c/0x86 [dca]
 [<ffffffffa002b21f>] dca3_get_tag+0x15/0x17 [dca]
 [<ffffffffa00498d1>] igb_update_dca+0xb1/0x270 [igb]
 [<ffffffffa004d757>] igb_poll+0xb07/0xf20 [igb]
 [<ffffffff81010797>] ? __switch_to+0x18b/0x217
 [<ffffffff8144ffdc>] ? thread_return+0x53/0xc8
 [<ffffffff813ad3d7>] net_rx_action+0xb0/0x20e
 [<ffffffff8105ba28>] ksoftirqd+0x192/0x2ba
 [<ffffffff8105b896>] ? ksoftirqd+0x0/0x2ba
 [<ffffffff810720ff>] kthread+0x91/0x99
 [<ffffffff81012f1a>] child_rip+0xa/0x20
 [<ffffffff8107206e>] ? kthread+0x0/0x99
 [<ffffffff81012f10>] ? child_rip+0x0/0x20
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://ccrma-mail.stanford.edu/pipermail/planetccrma/attachments/20100319/18adafc7/attachment.html 

More information about the PlanetCCRMA mailing list