Hi Shuah,
FYI, your debug commit
commit 224d4b5563b005836628b1c02ebe374684df118f
Author: Shuah Khan <[email protected]>
Date: Fri Oct 12 15:23:05 2012 +1100
dma-debug: new interfaces to debug dma mapping errors
triggers the below warning. Hopefully you know better than me the real
issue and relevant developers to CC.
[ 12.756348] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 12.763446] ------------[ cut here ]------------
[ 12.764380] WARNING: at /c/kernel-tests/src/stable/lib/dma-debug.c:948
check_unmap+0x645/0x7bd()
[ 12.764380] Hardware name: Bochs
[ 12.764380] Sending DHCP requests .
[ 12.764380] e1000 0000:00:03.0: DMA-API: device driver failed to check map
error[device address=0x00000000199140fa] [size=90 bytes] [mapped as single]
[ 12.764380] Modules linked in:
[ 12.764380] Pid: 0, comm: swapper/1 Not tainted 3.6.0-next-20121012 #1039
[ 12.764380] Call Trace:
[ 12.764380] <IRQ> [<ffffffff8145b79d>] ? check_unmap+0x645/0x7bd
[ 12.764380] [<ffffffff8106c814>] warn_slowpath_common+0x83/0x9c
[ 12.764380] [<ffffffff8106c8d0>] warn_slowpath_fmt+0x46/0x48
[ 12.764380] [<ffffffff8145b79d>] check_unmap+0x645/0x7bd
[ 12.764380] [<ffffffff8105e19b>] ? kvm_clock_read+0x2e/0x36
[ 12.764380] [<ffffffff8145b9da>] debug_dma_unmap_page+0x5b/0x65
[ 12.764380] [<ffffffff8105ecb9>] ? pvclock_clocksource_read+0x4d/0xc3
[ 12.764380] [<ffffffff810a13df>] ? sched_clock_local+0x12/0x75
[ 12.764380] [<ffffffff81721aee>]
e1000_unmap_and_free_tx_resource.isra.27+0xc0/0xed
[ 12.764380] [<ffffffff81721bea>] e1000_clean+0xcf/0x73e
[ 12.764380] [<ffffffff8105ecb9>] ? pvclock_clocksource_read+0x4d/0xc3
[ 12.764380] [<ffffffff818fe001>] ? net_rx_action+0x1cc/0x244
[ 12.764380] [<ffffffff818fdefa>] net_rx_action+0xc5/0x244
[ 12.764380] [<ffffffff810740c8>] __do_softirq+0xf6/0x231
[ 12.764380] [<ffffffff81a5f151>] ? _raw_spin_unlock+0x29/0x3d
[ 12.764380] [<ffffffff81a67b3c>] call_softirq+0x1c/0x30
[ 12.764380] [<ffffffff8103c108>] do_softirq+0x4a/0xa6
[ 12.764380] [<ffffffff81074331>] irq_exit+0x51/0xbc
[ 12.764380] [<ffffffff81a6829d>] do_IRQ+0x9d/0xb4
[ 12.764380] [<ffffffff81a5f672>] common_interrupt+0x72/0x72
[ 12.764380] <EOI> [<ffffffff810a15c8>] ? local_clock+0x1d/0x5a
[ 12.764380] [<ffffffff8105e364>] ? native_safe_halt+0x6/0x8
[ 12.764380] [<ffffffff810c2431>] ? trace_hardirqs_on+0xd/0xf
[ 12.764380] [<ffffffff8104177c>] default_idle+0xc7/0x218
[ 12.764380] [<ffffffff810421e3>] cpu_idle+0x9f/0xf9
[ 12.764380] [<ffffffff81a3f2cb>] start_secondary+0x238/0x240
Thanks,
Fengguang
------------------------------------------------------------------------------
Don't let slow site performance ruin your business. Deploy New Relic APM
Deploy New Relic app performance management and know exactly
what is happening inside your Ruby, Python, PHP, Java, and .NET app
Try New Relic at no cost today and get our sweet Data Nerd shirt too!
http://p.sf.net/sfu/newrelic-dev2dev
_______________________________________________
E1000-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/e1000-devel
To learn more about Intel® Ethernet, visit
http://communities.intel.com/community/wired
