I noticed this in my dmesg output...  are you aware of this problem?  Is there something wrong with the CCRMA kernel?<br>Should I be worried?  Appears to be related to my network card driver [igb] and the Intel Direct Cache Access [dca] module.<br>
<br>I have installed the same kernel to several machines and am seeing the same problem.<br>Anyone else seen anything similar?<br><br>Thanks<br>Spencer<br><br>BUG: sleeping function called from invalid context at kernel/rtmutex.c:684<br>
in_atomic(): 1, irqs_disabled(): 0, pid: 7, name: sirq-net-rx/0<br>Pid: 7, comm: sirq-net-rx/0 Tainted: G   M       2.6.31.12-1.rt21.1.fc12.ccrma.x86_64.rt #1<br>Call Trace:<br> [&lt;ffffffff81042002&gt;] __might_sleep+0xe6/0xe8<br>
 [&lt;ffffffff81083ade&gt;] rt_spin_lock_fastlock.clone.1+0x34/0x79<br> [&lt;ffffffff814514bd&gt;] rt_spin_lock+0xe/0x10<br> [&lt;ffffffffa002b1ac&gt;] dca_common_get_tag+0x3c/0x86 [dca]<br> [&lt;ffffffffa002b21f&gt;] dca3_get_tag+0x15/0x17 [dca]<br>
 [&lt;ffffffffa00498d1&gt;] igb_update_dca+0xb1/0x270 [igb]<br> [&lt;ffffffffa004d757&gt;] igb_poll+0xb07/0xf20 [igb]<br> [&lt;ffffffff81010797&gt;] ? __switch_to+0x18b/0x217<br> [&lt;ffffffff8144ffdc&gt;] ? thread_return+0x53/0xc8<br>
 [&lt;ffffffff813ad3d7&gt;] net_rx_action+0xb0/0x20e<br> [&lt;ffffffff8105ba28&gt;] ksoftirqd+0x192/0x2ba<br> [&lt;ffffffff8105b896&gt;] ? ksoftirqd+0x0/0x2ba<br> [&lt;ffffffff810720ff&gt;] kthread+0x91/0x99<br> [&lt;ffffffff81012f1a&gt;] child_rip+0xa/0x20<br>
 [&lt;ffffffff8107206e&gt;] ? kthread+0x0/0x99<br> [&lt;ffffffff81012f10&gt;] ? child_rip+0x0/0x20<br><br>