Re: Interrupt problems causing crash of network driver and Kernel panic?

8 Feb 2010

      Hi Adam,

I did some more tests on the system using different settings in the
L4Linux and menu.lst configurations.

The following listings show the results in /var/log/syslog as far they
could be recorded for:

* Enabled roottask.config and L4Linux priority 0xA0 (some as all other
tasks) [1]
* Enabled roottask.config and L4Linux priority 0xE0 [1]
* Disabled roottask.config and L4Linux priority 0xA0 [2]
* Enabled roottask.config and L4Linux priority 0xA0 [2]

(tests done via SSH)
[1]: find /  asdf.asdf
[2]: while true; do echo $(date +%s); done

Both test sceneries have been done on an established SIP connection over
 both NICs. So we already produce some network traffic and interrupts.

Adam Lackorzynski wrote:
...
On Thu Jan 28, 2010 at 14:33:43 +0100, Andreas Speier wrote:
...
The main hardware components are an embedded board with 1GHz VIA C7
processor, 1GB of RAM and 2 network interface cards (VIA-Rhine, 3Com).
The drivers are compiled into the L4Linux kernel.
Running this application works fine until some more interrupt intensive
process will be started. Then the VoIP communication (SIP) breaks down
and I got the following output in /var/log/syslog:
#################
Jan 28 08:24:58 TESTPC kernel: ------------[ cut here ]------------
Jan 28 08:24:58 TESTPC kernel: kernel BUG at
/home/[...]/l4linux-2.6.29/net/core/dev.c:2625!
Jan 28 08:24:58 TESTPC kernel: Trap: 6: 0000 [#1]
Jan 28 08:24:58 TESTPC kernel: last sysfs file:
Jan 28 08:24:58 TESTPC kernel: Modules linked in:
Jan 28 08:24:58 TESTPC kernel:
Jan 28 08:24:58 TESTPC kernel: Pid: 872, comm: find Not tainted
(2.6.29-l4 #3)
Jan 28 08:24:58 TESTPC kernel: EIP: ff04:[<0063c5bf>] EFLAGS: 00010246
CPU: 0
Jan 28 08:24:58 TESTPC kernel: EIP is at __napi_complete+0x2f/0x40
Jan 28 08:24:58 TESTPC kernel: EAX: 0092d45c EBX: 0092d45c ECX: 0092d45c
EDX: 008aa40c
Jan 28 08:24:58 TESTPC kernel: ESI: 00000001 EDI: 0092d45c EBP: b0afff14
ESP: b0afff0c
Jan 28 08:24:58 TESTPC kernel: DS: 4000 ES: 7032 FS: 0023 GS: 0043 SS: 0023
Jan 28 08:24:58 TESTPC kernel: Process find (pid: 872, ti=b0afe000
task=0a5391b0 task.ti=0a564000)
Jan 28 08:24:58 TESTPC kernel: Stack:
Jan 28 08:24:58 TESTPC kernel: b0afff14 eacff011 b0afff24 0063dd25
0092d444 00000001 b0afff40 00640473
Jan 28 08:24:58 TESTPC kernel: 00000040 000107b2 00000040 00000000
0092d45c b0afff5c 006404ca 000107b4
Jan 28 08:24:58 TESTPC kernel: 0000012c 00000001 0000000c 00000100
b0afff74 0041afe7 0000000a 00000000
Jan 28 08:24:58 TESTPC kernel: Call Trace:
Jan 28 08:24:58 TESTPC kernel: [<0063dd25>] ? napi_complete+0x25/0x40
Jan 28 08:24:58 TESTPC kernel: [<00640473>] ? process_backlog+0x93/0xa0
Jan 28 08:24:58 TESTPC kernel: [<006404ca>] ? net_rx_action+0x4a/0x100
Jan 28 08:24:58 TESTPC kernel: [<0041afe7>] ? __do_softirq+0x67/0x100
Jan 28 08:24:58 TESTPC kernel: [<0040bb05>] ? do_softirq+0x55/0x60
Jan 28 08:24:59 TESTPC kernel: [<0041af15>] ? irq_exit+0x35/0x40
Jan 28 08:24:59 TESTPC kernel: [<0040ba75>] ? do_IRQ+0x35/0x70
Jan 28 08:24:59 TESTPC kernel: [<00523ad5>] ? irq_dev_thread+0xf5/0x190
Jan 28 08:24:59 TESTPC kernel: Code: e5 f6 40 08 01 74 24 8b 40 20 85 c0
75 21 8b 11 8b 41 04 89 42 04 89 10 c7 41 04 00 02 20 00 c7 01 00 01 10
00 80 61 08 fe 5d c3 <0f> 0b eb fe 0f 0b eb fe 89 f6 8d bc 27 00 00 00
00 55 ba d0 00
Hmm, I'm afraid that could be a bug. Is that (well) reproducible?
Unfortunately it seems to be reproducible.
...
Adam
A few seconds after the tests have been started, the systems fail as
described below. I hope that will help you to get the necessary
information about the possible bug.
If there is something you need to know beside, please tell me and I will
run further tests.

Here are the syslog entries for the mentioned test cases:

=> Enabled roottask.config and L4Linux priority 0xA0 (some as any other
task) [1]
==============================================================
TEST-PC kernel: ------------[ cut here ]------------
 TEST-PC kernel: Trap: 6: 0000 [#1]
 TEST-PC kernel: last sysfs file:
 TEST-PC kernel: Process find (pid: 871, ti=b0afe000 task=0a37fab0
task.ti=0a4b8000)
 TEST-PC kernel: Stack:
 TEST-PC kernel: 00000040 ffffc11c 00000040 00000000 0092d45c b0afff5c
006404ca ffffc11e
 TEST-PC kernel: 0000012c 00000001 0000000c 00000100 b0afff74 0041afe7
0000000a 00000000
 TEST-PC kernel: Call Trace:
 TEST-PC kernel: [<0063dd25>] ? napi_complete+0x25/0x40
 TEST-PC kernel: [<00640473>] ? process_backlog+0x93/0xa0
 TEST-PC kernel: [<006404ca>] ? net_rx_action+0x4a/0x100
 TEST-PC kernel: [<0041afe7>] ? __do_softirq+0x67/0x100
 TEST-PC kernel: [<0040bb05>] ? do_softirq+0x55/0x60
 TEST-PC kernel: [<0041af15>] ? irq_exit+0x35/0x40
 TEST-PC kernel: [<0040ba75>] ? do_IRQ+0x35/0x70
 TEST-PC kernel: [<00523ad5>] ? irq_dev_thread+0xf5/0x190
 TEST-PC kernel: Code: e5 f6 40 08 01 74 24 8b 40 20 85 c0 75 21 8b 11
8b 41 04 89 42 04 89 10 c7 41 04 00 02 20 00 c7 01 00 01 10 00 80 61 08
fe 5d c3 <0f> 0b eb fe 0f 0b eb fe 89 f6 8d bc 27 00 00 00 00 55 ba d0 00
 TEST-PC kernel: EIP: [<0063c5bf>] __napi_complete+0x2f/0x40 SS:ESP
0023:b0afff0c
 TEST-PC kernel: Kernel panic - not syncing: Fatal exception in interrupt
Feb  8 08:21:57 TEST-PC kernel: ------------[ cut here ]------------
Feb  8 08:21:57 TEST-PC kernel: kernel BUG at
/.../l4linux-2.6.29/net/core/dev.c:2625!
Feb  8 08:21:57 TEST-PC kernel: Trap: 6: 0000 [#1]
Feb  8 08:21:57 TEST-PC kernel: last sysfs file:
Feb  8 08:21:57 TEST-PC kernel: Modules linked in:
Feb  8 08:21:57 TEST-PC kernel:
Feb  8 08:21:57 TEST-PC kernel: Pid: 871, comm: find Not tainted
(2.6.29-l4 #3)
Feb  8 08:21:57 TEST-PC kernel: EIP: ff04:[<0063c5bf>] EFLAGS: 00010246
CPU: 0
Feb  8 08:21:57 TEST-PC kernel: EIP is at __napi_complete+0x2f/0x40
Feb  8 08:21:57 TEST-PC kernel: EAX: 0092d45c EBX: 0092d45c ECX:
0092d45c EDX: 008aa40c
Feb  8 08:21:57 TEST-PC kernel: ESI: 00000001 EDI: 0092d45c EBP:
b0afff14 ESP: b0afff0c
Feb  8 08:21:57 TEST-PC kernel: DS: 4000 ES: 7032 FS: 0023 GS: 0043 SS: 0023
Feb  8 08:21:57 TEST-PC kernel: Process find (pid: 871, ti=b0afe000
task=0a37fab0 task.ti=0a4b8000)
Feb  8 08:21:57 TEST-PC kernel: Stack:
Feb  8 08:21:57 TEST-PC kernel: b0afff14 eacff011 b0afff24 0063dd25
0092d444 00000001 b0afff40 00640473
Feb  8 08:21:57 TEST-PC kernel: 00000040 ffffc11c 00000040 00000000
0092d45c b0afff5c 006404ca ffffc11e
Feb  8 08:21:57 TEST-PC kernel: 0000012c 00000001 0000000c 00000100
b0afff74 0041afe7 0000000a 00000000
Feb  8 08:21:57 TEST-PC kernel: Call Trace:
Feb  8 08:21:57 TEST-PC kernel: [<0063dd25>] ? napi_complete+0x25/0x40
Feb  8 08:21:57 TEST-PC kernel: [<00640473>] ? process_backlog+0x93/0xa0
Feb  8 08:21:57 TEST-PC kernel: [<006404ca>] ? net_rx_action+0x4a/0x100
Feb  8 08:21:57 TEST-PC kernel: [<0041afe7>] ? __do_softirq+0x67/0x100
Feb  8 08:21:57 TEST-PC kernel: [<0040bb05>] ? do_softirq+0x55/0x60
Feb  8 08:21:57 TEST-PC kernel: [<0041af15>] ? irq_exit+0x35/0x40
Feb  8 08:21:57 TEST-PC kernel: [<0040ba75>] ? do_IRQ+0x35/0x70
Feb  8 08:21:57 TEST-PC kernel: [<00523ad5>] ? irq_dev_thread+0xf5/0x190
Feb  8 08:21:57 TEST-PC kernel: Code: e5 f6 40 08 01 74 24 8b 40 20 85
c0 75 21 8b 11 8b 41 04 89 42 04 89 10 c7 41 04 00 02 20 00 c7 01 00 01
10 00 80 61 08 fe 5d c3 <0f> 0b eb fe 0f 0b eb fe 89 f6 8d bc 27 00 00
00 00 55 ba d0 00
Feb  8 08:21:57 TEST-PC kernel: EIP: [<0063c5bf>]
__napi_complete+0x2f/0x40 SS:ESP 0023:b0afff0c
Feb  8 08:21:57 TEST-PC kernel: ---[ end trace 52fb883eb43f7bcd ]---
Feb  8 08:21:57 TEST-PC kernel: Kernel panic - not syncing: Fatal
exception in interrupt
Feb  8 08:21:57 TEST-PC kernel: panic: going to sleep forever, bye

=> Enabled roottask.config and L4Linux priority 0xE0 [1]
==============================================================
TEST-PC kernel: ------------[ cut here ]------------
 TEST-PC kernel: Trap: 6: 0000 [#1]
 TEST-PC kernel: last sysfs file:
 TEST-PC kernel: Process find (pid: 871, ti=b0afe000 task=0a42e030
task.ti=0a48c000)
 TEST-PC kernel: Stack:
 TEST-PC kernel: 00000040 ffffa958 00000040 00000000 0092d45c b0afff5c
006404ca ffffa95a
 TEST-PC kernel: 0000012c 00000001 0000000c 00000100 b0afff74 0041afe7
0000000a 00000000
 TEST-PC kernel: Call Trace:
 TEST-PC kernel: [<0063dd25>] ? napi_complete+0x25/0x40
 TEST-PC kernel: [<00640473>] ? process_backlog+0x93/0xa0
 TEST-PC kernel: [<006404ca>] ? net_rx_action+0x4a/0x100
 TEST-PC kernel: [<0041afe7>] ? __do_softirq+0x67/0x100
 TEST-PC kernel: [<0040bb05>] ? do_softirq+0x55/0x60
 TEST-PC kernel: [<0041af15>] ? irq_exit+0x35/0x40
 TEST-PC kernel: [<0040ba75>] ? do_IRQ+0x35/0x70
 TEST-PC kernel: [<00523ad5>] ? irq_dev_thread+0xf5/0x190
Feb  8 08:26:17 TEST-PC kernel: ------------[ cut here ]------------
Feb  8 08:26:17 TEST-PC kernel: kernel BUG at
/.../l4linux-2.6.29/net/core/dev.c:2625!
Feb  8 08:26:17 TEST-PC kernel: Trap: 6: 0000 [#1]
Feb  8 08:26:17 TEST-PC kernel: last sysfs file:
Feb  8 08:26:17 TEST-PC kernel: Modules linked in:
Feb  8 08:26:17 TEST-PC kernel:
Feb  8 08:26:17 TEST-PC kernel: Pid: 871, comm: find Not tainted
(2.6.29-l4 #3)
Feb  8 08:26:17 TEST-PC kernel: EIP: ff04:[<0063c5bf>] EFLAGS: 00010246
CPU: 0
Feb  8 08:26:17 TEST-PC kernel: EIP is at __napi_complete+0x2f/0x40
Feb  8 08:26:17 TEST-PC kernel: EAX: 0092d45c EBX: 0092d45c ECX:
0092d45c EDX: 008aa40c
Feb  8 08:26:17 TEST-PC kernel: ESI: 00000001 EDI: 0092d45c EBP:
b0afff14 ESP: b0afff0c
Feb  8 08:26:17 TEST-PC kernel: DS: 4000 ES: 7032 FS: 0023 GS: 0043 SS: 0023
Feb  8 08:26:17 TEST-PC kernel: Process find (pid: 871, ti=b0afe000
task=0a42e030 task.ti=0a48c000)
Feb  8 08:26:17 TEST-PC kernel: Stack:
Feb  8 08:26:17 TEST-PC kernel: b0afff14 eacff011 b0afff24 0063dd25
0092d444 00000001 b0afff40 00640473
Feb  8 08:26:17 TEST-PC kernel: 00000040 ffffa958 00000040 00000000
0092d45c b0afff5c 006404ca ffffa95a
Feb  8 08:26:17 TEST-PC kernel: 0000012c 00000001 0000000c 00000100
b0afff74 0041afe7 0000000a 00000000
Feb  8 08:26:17 TEST-PC kernel: Call Trace:
Feb  8 08:26:17 TEST-PC kernel: [<0063dd25>] ? napi_complete+0x25/0x40
Feb  8 08:26:17 TEST-PC kernel: [<00640473>] ? process_backlog+0x93/0xa0
 TEST-PC kernel: Code: e5 f6 40 08 01 74 24 8b 40 20 85 c0 75 21 8b 11
8b 41 04 89 42 04 89 10 c7 41 04 00 02 20 00 c7 01 00 01 10 00 80 61 08
fe 5d c3 <0f> 0b eb fe 0f 0b eb fe 89 f6 8d bc 27 00 00 00 00 55 ba d0 00
 TEST-PC kernel: EIP: [<0063c5bf>] __napi_complete+0x2f/0x40 SS:ESP
0023:b0afff0c
 TEST-PC kernel: Kernel panic - not syncing: Fatal exception in interrupt
Feb  8 08:26:17 TEST-PC kernel: [<006404ca>] ? net_rx_action+0x4a/0x100
Feb  8 08:26:17 TEST-PC kernel: [<0041afe7>] ? __do_softirq+0x67/0x100
Feb  8 08:26:17 TEST-PC kernel: [<0040bb05>] ? do_softirq+0x55/0x60
Feb  8 08:26:17 TEST-PC kernel: [<0041af15>] ? irq_exit+0x35/0x40
Feb  8 08:26:17 TEST-PC kernel: [<0040ba75>] ? do_IRQ+0x35/0x70
Feb  8 08:26:17 TEST-PC kernel: [<00523ad5>] ? irq_dev_thread+0xf5/0x190
Feb  8 08:26:17 TEST-PC kernel: Code: e5 f6 40 08 01 74 24 8b 40 20 85
c0 75 21 8b 11 8b 41 04 89 42 04 89 10 c7 41 04 00 02 20 00 c7 01 00 01
10 00 80 61 08 fe 5d c3 <0f> 0b eb fe 0f 0b eb fe 89 f6 8d bc 27 00 00
00 00 55 ba d0 00
Feb  8 08:26:17 TEST-PC kernel: EIP: [<0063c5bf>]
__napi_complete+0x2f/0x40 SS:ESP 0023:b0afff0c
Feb  8 08:26:17 TEST-PC kernel: ---[ end trace d377397ef168e9d8 ]---
Feb  8 08:26:17 TEST-PC kernel: Kernel panic - not syncing: Fatal
exception in interrupt
Feb  8 08:26:18 TEST-PC kernel: panic: going to sleep forever, bye

=> Disabled roottask.config and L4Linux priority 0xA0 [2]
==============================================================
Feb  8 08:32:19 TEST-PC kernel: ------------[ cut here ]------------
Feb  8 08:32:19 TEST-PC kernel: WARNING: at
/.../l4linux-2.6.29/net/sched/sch_generic.c:226 dev_watchdog+0x18e/0x1a0()
Feb  8 08:32:19 TEST-PC kernel: NETDEV WATCHDOG: eth1 (via-rhine):
transmit timed out
Feb  8 08:32:19 TEST-PC kernel: Modules linked in:
Feb  8 08:32:19 TEST-PC kernel: Pid: 1382, comm: bash Not tainted
2.6.29-l4 #3
Feb  8 08:32:19 TEST-PC kernel: Call Trace:
Feb  8 08:32:19 TEST-PC kernel: [<00416bc6>] warn_slowpath+0x76/0x90
Feb  8 08:32:19 TEST-PC kernel: [<004114fe>] ? __enqueue_entity+0x8e/0xb0
Feb  8 08:32:19 TEST-PC kernel: [<004147d6>] ?
check_preempt_wakeup+0x176/0x190
Feb  8 08:32:19 TEST-PC kernel: [<0042a588>] ? hrtimer_forward+0x148/0x180
Feb  8 08:32:19 TEST-PC kernel: [<0040242c>] ?
l4x_global_restore_flags+0xc/0x40
Feb  8 08:32:19 TEST-PC kernel: [<0042ecee>] ?
clocksource_get_next+0x2e/0x60
Feb  8 08:32:19 TEST-PC kernel: [<0042d6ec>] ? getnstimeofday+0x4c/0x110
Feb  8 08:32:19 TEST-PC kernel: [<0051f537>] ? strlcpy+0x17/0x50
Feb  8 08:32:19 TEST-PC kernel: [<0064c1be>] dev_watchdog+0x18e/0x1a0
Feb  8 08:32:19 TEST-PC kernel: [<00413f76>] ? task_tick_fair+0x36/0x70
Feb  8 08:32:19 TEST-PC kernel: [<00414a36>] ? scheduler_tick+0x96/0xa0
Feb  8 08:32:19 TEST-PC kernel: [<0041e50d>] run_timer_softirq+0x11d/0x170
Feb  8 08:32:19 TEST-PC kernel: [<0064c030>] ? dev_watchdog+0x0/0x1a0
Feb  8 08:32:19 TEST-PC kernel: [<0041afe7>] __do_softirq+0x67/0x100
Feb  8 08:32:19 TEST-PC kernel: [<0040bb05>] do_softirq+0x55/0x60
Feb  8 08:32:19 TEST-PC kernel: [<0041af15>] irq_exit+0x35/0x40
Feb  8 08:32:19 TEST-PC kernel: [<0040ba75>] do_IRQ+0x35/0x70
Feb  8 08:32:19 TEST-PC kernel: [<00523ef3>] timer_irq_thread+0x123/0x1a0
Feb  8 08:32:19 TEST-PC kernel: ---[ end trace 3ee5d25c787a997a ]---
Feb  8 08:32:19 TEST-PC kernel: eth1: Transmit timed out, status 0000,
PHY status 786d, resetting...
Feb  8 08:32:19 TEST-PC kernel: eth1: link up, 100Mbps, full-duplex, lpa
0x45E1
Feb  8 08:32:19 TEST-PC kernel: eth1: Transmit timed out, status 0003,
PHY status 786d, resetting...
Feb  8 08:32:19 TEST-PC kernel: eth1: link up, 100Mbps, full-duplex, lpa
0x45E1
Feb  8 08:32:19 TEST-PC kernel: eth1: Transmit timed out, status 0002,
PHY status 786d, resetting...
Feb  8 08:32:19 TEST-PC kernel: eth1: link up, 100Mbps, full-duplex, lpa
0x45E1
Feb  8 08:32:19 TEST-PC kernel: eth1: Transmit timed out, status 0003,
PHY status 786d, resetting...
Feb  8 08:32:19 TEST-PC kernel: eth1: link up, 100Mbps, full-duplex, lpa
0x45E1
Feb  8 08:32:19 TEST-PC kernel: eth1: Transmit timed out, status 0002,
PHY status 786d, resetting...
Feb  8 08:32:19 TEST-PC kernel: eth1: link up, 100Mbps, full-duplex, lpa
0x45E1
Feb  8 08:32:19 TEST-PC kernel: eth1: Transmit timed out, status 0003,
PHY status 786d, resetting...
Feb  8 08:32:19 TEST-PC kernel: eth1: link up, 100Mbps, full-duplex, lpa
0x45E1
Feb  8 08:32:19 TEST-PC kernel: eth1: Transmit timed out, status 0002,
PHY status 786d, resetting...
Feb  8 08:32:19 TEST-PC kernel: eth1: link up, 100Mbps, full-duplex, lpa
0x45E1
Feb  8 08:32:19 TEST-PC kernel: eth1: Transmit timed out, status 0002,
PHY status 786d, resetting...
Feb  8 08:32:19 TEST-PC kernel: eth1: link up, 100Mbps, full-duplex, lpa
0x45E1
Feb  8 08:32:19 TEST-PC kernel: eth1: Transmit timed out, status 0002,
PHY status 786d, resetting...
Feb  8 08:32:19 TEST-PC kernel: eth1: link up, 100Mbps, full-duplex, lpa
0x45E1
Feb  8 08:32:19 TEST-PC kernel: eth1: Transmit timed out, status 0003,
PHY status 786d, resetting...
Feb  8 08:32:19 TEST-PC kernel: eth1: link up, 100Mbps, full-duplex, lpa
0x45E1
Feb  8 08:32:19 TEST-PC kernel: BUG: soft lockup - CPU#0 stuck for 61s!
[swapper:0]
Feb  8 08:32:19 TEST-PC kernel: Modules linked in:
Feb  8 08:32:19 TEST-PC kernel:
Feb  8 08:32:19 TEST-PC kernel: Pid: 0, comm: swapper Tainted: G
W  (2.6.29-l4 #3)
Feb  8 08:32:19 TEST-PC kernel: EIP: 0000:[<00000000>] EFLAGS: 00000000
CPU: 0
Feb  8 08:32:19 TEST-PC kernel: EIP is at 0x0
Feb  8 08:32:19 TEST-PC kernel: EAX: 00000000 EBX: 00000000 ECX:
00000000 EDX: 00000000
Feb  8 08:32:19 TEST-PC kernel: ESI: 00000000 EDI: 00000000 EBP:
00000000 ESP: 00813400
Feb  8 08:32:19 TEST-PC kernel: DS: 0000 ES: 0000 FS: 0000 GS: 0043 SS: 0023
Feb  8 08:32:19 TEST-PC kernel: Call Trace:
Feb  8 08:32:19 TEST-PC kernel: [<004364a4>] ? softlockup_tick+0xd4/0x110
Feb  8 08:32:19 TEST-PC kernel: [<0041e817>] ? run_local_timers+0x17/0x20
Feb  8 08:32:19 TEST-PC kernel: [<0041ea0b>] ?
update_process_times+0x1b/0x50
Feb  8 08:32:19 TEST-PC kernel: [<0042fe36>] ? tick_periodic+0x26/0x70
Feb  8 08:32:19 TEST-PC kernel: [<0042fe92>] ?
tick_handle_periodic+0x12/0x70
Feb  8 08:32:19 TEST-PC kernel: [<0053e810>] ? cursor_timer_handler+0x0/0x30
Feb  8 08:32:19 TEST-PC kernel: [<004086f9>] ? timer_interrupt+0x19/0x20
Feb  8 08:32:19 TEST-PC kernel: [<00436971>] ? handle_IRQ_event+0x31/0x70
Feb  8 08:32:19 TEST-PC kernel: [<00437ce9>] ? handle_edge_irq+0x99/0xf0
Feb  8 08:32:19 TEST-PC kernel: [<0040ba70>] ? do_IRQ+0x30/0x70
Feb  8 08:32:19 TEST-PC kernel: [<00523ef3>] ? timer_irq_thread+0x123/0x1a0

=> Enabled roottask.config and L4Linux priority 0xA0 [2]
==============================================================
TEST-PC kernel: ------------[ cut here ]------------
 TEST-PC kernel: Trap: 6: 0000 [#1]
 TEST-PC kernel: last sysfs file:
 TEST-PC kernel: Process sshd (pid: 852, ti=b0afe000 task=0a46d8b0
task.ti=0a3ee000)
 TEST-PC kernel: Stack:
 TEST-PC kernel: 00000040 ffffb091 00000040 00000000 0092d45c b0afff5c
006404ca ffffb093
 TEST-PC kernel: 0000012c 00000001 0000000c 00000100 b0afff74 0041afe7
0000000a 00000000
 TEST-PC kernel: Call Trace:
 TEST-PC kernel: [<0063dd25>] ? napi_complete+0x25/0x40
Feb  8 08:49:45 TEST-PC kernel: ------------[ cut here ]------------
Feb  8 08:49:45 TEST-PC kernel: kernel BUG at
/.../l4linux-2.6.29/net/core/dev.c:2625!
Feb  8 08:49:45 TEST-PC kernel: Trap: 6: 0000 [#1]
Feb  8 08:49:45 TEST-PC kernel: last sysfs file:
Feb  8 08:49:45 TEST-PC kernel: Modules linked in:
Feb  8 08:49:45 TEST-PC kernel:
Feb  8 08:49:45 TEST-PC kernel: Pid: 852, comm: sshd Not tainted
(2.6.29-l4 #3)
Feb  8 08:49:45 TEST-PC kernel: EIP: ff04:[<0063c5bf>] EFLAGS: 00010246
CPU: 0
Feb  8 08:49:45 TEST-PC kernel: EIP is at __napi_complete+0x2f/0x40
Feb  8 08:49:45 TEST-PC kernel: EAX: 0092d45c EBX: 0092d45c ECX:
0092d45c EDX: 008aa40c
 TEST-PC kernel: [<00640473>] ? process_backlog+0x93/0xa0
 TEST-PC kernel: [<006404ca>] ? net_rx_action+0x4a/0x100
 TEST-PC kernel: [<0041afe7>] ? __do_softirq+0x67/0x100
 TEST-PC kernel: [<0040bb05>] ? do_softirq+0x55/0x60
 TEST-PC kernel: [<0041af15>] ? irq_exit+0x35/0x40
 TEST-PC kernel: [<0040ba75>] ? do_IRQ+0x35/0x70
 TEST-PC kernel: [<00523ad5>] ? irq_dev_thread+0xf5/0x190
 TEST-PC kernel: Code: e5 f6 40 08 01 74 24 8b 40 20 85 c0 75 21 8b 11
8b 41 04 89 42 04 89 10 c7 41 04 00 02 20 00 c7 01 00 01 10 00 80 61 08
fe 5d c3 <0f> 0b eb fe 0f 0b eb fe 89 f6 8d bc 27 00 00 00 00 55 ba d0 00
 TEST-PC kernel: EIP: [<0063c5bf>] __napi_complete+0x2f/0x40 SS:ESP
0023:b0afff0c
 TEST-PC kernel: Kernel panic - not syncing: Fatal exception in interrupt
Feb  8 08:49:45 TEST-PC kernel: ESI: 00000001 EDI: 0092d45c EBP:
b0afff14 ESP: b0afff0c
Feb  8 08:49:45 TEST-PC kernel: DS: 4000 ES: 7032 FS: 0023 GS: 0043 SS: 0023
Feb  8 08:49:45 TEST-PC kernel: Process sshd (pid: 852, ti=b0afe000
task=0a46d8b0 task.ti=0a3ee000)
Feb  8 08:49:45 TEST-PC kernel: Stack:
Feb  8 08:49:45 TEST-PC kernel: b0afff14 eacff011 b0afff24 0063dd25
0092d444 00000001 b0afff40 00640473
Feb  8 08:49:45 TEST-PC kernel: 00000040 ffffb091 00000040 00000000
0092d45c b0afff5c 006404ca ffffb093
Feb  8 08:49:46 TEST-PC kernel: 0000012c 00000001 0000000c 00000100
b0afff74 0041afe7 0000000a 00000000
Feb  8 08:49:46 TEST-PC kernel: Call Trace:
Feb  8 08:49:46 TEST-PC kernel: [<0063dd25>] ? napi_complete+0x25/0x40
Feb  8 08:49:46 TEST-PC kernel: [<00640473>] ? process_backlog+0x93/0xa0
Feb  8 08:49:46 TEST-PC kernel: [<006404ca>] ? net_rx_action+0x4a/0x100
Feb  8 08:49:46 TEST-PC kernel: [<0041afe7>] ? __do_softirq+0x67/0x100
Feb  8 08:49:46 TEST-PC kernel: [<0040bb05>] ? do_softirq+0x55/0x60
Feb  8 08:49:46 TEST-PC kernel: [<0041af15>] ? irq_exit+0x35/0x40
Feb  8 08:49:46 TEST-PC kernel: [<0040ba75>] ? do_IRQ+0x35/0x70
Feb  8 08:49:46 TEST-PC kernel: [<00523ad5>] ? irq_dev_thread+0xf5/0x190
Feb  8 08:49:46 TEST-PC kernel: Code: e5 f6 40 08 01 74 24 8b 40 20 85
c0 75 21 8b 11 8b 41 04 89 42 04 89 10 c7 41 04 00 02 20 00 c7 01 00 01
10 00 80 61 08 fe 5d c3 <0f> 0b eb fe 0f 0b eb fe 89 f6 8d bc 27 00 00
00 00 55 ba d0 00
Feb  8 08:49:46 TEST-PC kernel: EIP: [<0063c5bf>]
__napi_complete+0x2f/0x40 SS:ESP 0023:b0afff0c
Feb  8 08:49:46 TEST-PC kernel: ---[ end trace 2590198ec4845304 ]---
Feb  8 08:49:46 TEST-PC kernel: Kernel panic - not syncing: Fatal
exception in interrupt
Feb  8 08:49:46 TEST-PC kernel: panic: going to sleep forever, bye
Feb  8 08:50:41 TEST-PC kernel: ------------[ cut here ]------------
Feb  8 08:50:41 TEST-PC kernel: WARNING: at
/.../l4linux-2.6.29/net/sched/sch_generic.c:226 dev_watchdog+0x18e/0x1a0()
Feb  8 08:50:41 TEST-PC kernel: NETDEV WATCHDOG: eth0 (3c59x): transmit
timed out
Feb  8 08:50:41 TEST-PC kernel: Modules linked in:
Feb  8 08:50:41 TEST-PC kernel: Pid: 0, comm: swapper Tainted: G      D
   2.6.29-l4 #3
Feb  8 08:50:41 TEST-PC kernel: Call Trace:
Feb  8 08:50:41 TEST-PC kernel: [<00416bc6>] warn_slowpath+0x76/0x90
Feb  8 08:50:41 TEST-PC kernel: [<004115da>] ? enqueue_task_fair+0x2a/0x40
Feb  8 08:50:41 TEST-PC kernel: [<004114fe>] ? __enqueue_entity+0x8e/0xb0
Feb  8 08:50:41 TEST-PC kernel: [<0041156e>] ? enqueue_entity+0x4e/0x90
Feb  8 08:50:41 TEST-PC kernel: [<00411500>] ? __enqueue_entity+0x90/0xb0
Feb  8 08:50:41 TEST-PC kernel: [<0040242c>] ?
l4x_global_restore_flags+0xc/0x40
Feb  8 08:50:41 TEST-PC kernel: [<0041167f>] ? try_to_wake_up+0x8f/0xc0
Feb  8 08:50:41 TEST-PC kernel: [<004116bb>] ?
default_wake_function+0xb/0x10
Feb  8 08:50:41 TEST-PC kernel: [<004273d1>] ?
autoremove_wake_function+0x11/0x40
Feb  8 08:50:41 TEST-PC kernel: [<0051f537>] ? strlcpy+0x17/0x50
Feb  8 08:50:41 TEST-PC kernel: [<0064c1be>] dev_watchdog+0x18e/0x1a0
Feb  8 08:50:41 TEST-PC kernel: [<00410078>] ? requeue_task_rt+0x18/0x90
Feb  8 08:50:41 TEST-PC kernel: [<00402455>] ?
l4x_global_restore_flags+0x35/0x40
Feb  8 08:50:41 TEST-PC kernel: [<00424828>] ? __queue_work+0x38/0x40
Feb  8 08:50:41 TEST-PC kernel: [<0041e50d>] run_timer_softirq+0x11d/0x170
Feb  8 08:50:41 TEST-PC kernel: [<0064c030>] ? dev_watchdog+0x0/0x1a0
Feb  8 08:50:41 TEST-PC kernel: [<0041afe7>] __do_softirq+0x67/0x100
Feb  8 08:50:41 TEST-PC kernel: [<0040bb05>] do_softirq+0x55/0x60
Feb  8 08:50:41 TEST-PC kernel: [<0041af15>] irq_exit+0x35/0x40
Feb  8 08:50:41 TEST-PC kernel: [<0040ba75>] do_IRQ+0x35/0x70
Feb  8 08:50:41 TEST-PC kernel: [<00523ef3>] timer_irq_thread+0x123/0x1a0
Feb  8 08:50:41 TEST-PC kernel: ---[ end trace 2590198ec4845305 ]---
Feb  8 08:50:41 TEST-PC kernel: eth0: transmit timed out, tx_status 00
status e681.
Feb  8 08:50:41 TEST-PC kernel: diagnostics: net 0cd2 media 8880 dma
0000003a fifo 8000
Feb  8 08:50:41 TEST-PC kernel: eth0: Interrupt posted but not delivered
-- IRQ blocked by another device?
Feb  8 08:50:41 TEST-PC kernel: Flags; bus-master 1, dirty 481(1)
current 481(1)
Feb  8 08:50:41 TEST-PC kernel: Transmit list 00000000 vs. 0ae832a0.
Feb  8 08:50:41 TEST-PC kernel: 0: @0ae83200  length 8000002a status
8001002a
Feb  8 08:50:41 TEST-PC kernel: 1: @0ae832a0  length 80000057 status
0c010057
Feb  8 08:50:41 TEST-PC kernel: 2: @0ae83340  length 8000006a status
0c01006a
Feb  8 08:50:41 TEST-PC kernel: 3: @0ae833e0  length 80000056 status
0c010056
Feb  8 08:50:41 TEST-PC kernel: 4: @0ae83480  length 80000056 status
0c010056
Feb  8 08:50:41 TEST-PC kernel: 5: @0ae83520  length 80000056 status
0c010056
Feb  8 08:50:41 TEST-PC kernel: 6: @0ae835c0  length 80000056 status
0c010056
Feb  8 08:50:41 TEST-PC kernel: 7: @0ae83660  length 80000056 status
0c010056
Feb  8 08:50:41 TEST-PC kernel: 8: @0ae83700  length 80000056 status
0c010056
Feb  8 08:50:41 TEST-PC kernel: 9: @0ae837a0  length 8000002a status
0001002a
Feb  8 08:50:41 TEST-PC kernel: 10: @0ae83840  length 80000056 status
0c010056
Feb  8 08:50:41 TEST-PC kernel: 11: @0ae838e0  length 8000002a status
0001002a
Feb  8 08:50:41 TEST-PC kernel: 12: @0ae83980  length 8000002a status
0001002a
Feb  8 08:50:41 TEST-PC kernel: 13: @0ae83a20  length 8000002a status
0001002a
Feb  8 08:50:41 TEST-PC kernel: 14: @0ae83ac0  length 8000002a status
0001002a
Feb  8 08:50:41 TEST-PC kernel: 15: @0ae83b60  length 8000002a status
8001002a
Feb  8 08:50:41 TEST-PC kernel: eth0: Resetting the Tx ring pointer.
Feb  8 08:51:05 TEST-PC kernel: eth0: transmit timed out, tx_status 00
status e681.
Feb  8 08:51:05 TEST-PC kernel: diagnostics: net 0cd2 media 8880 dma
0000003a fifo 8000
Feb  8 08:51:05 TEST-PC kernel: eth0: Interrupt posted but not delivered
-- IRQ blocked by another device?
Feb  8 08:51:05 TEST-PC kernel: Flags; bus-master 1, dirty 497(1)
current 497(1)
Feb  8 08:51:05 TEST-PC kernel: Transmit list 00000000 vs. 0ae832a0.
Feb  8 08:51:05 TEST-PC kernel: 0: @0ae83200  length 8000002a status
8001002a
Feb  8 08:51:05 TEST-PC kernel: 1: @0ae832a0  length 8000002a status
0001002a
Feb  8 08:51:05 TEST-PC kernel: 2: @0ae83340  length 8000002a status
0001002a
Feb  8 08:51:05 TEST-PC kernel: 3: @0ae833e0  length 8000002a status
0001002a
Feb  8 08:51:05 TEST-PC kernel: 4: @0ae83480  length 8000002a status
0001002a
Feb  8 08:51:05 TEST-PC kernel: 5: @0ae83520  length 8000002a status
0001002a
Feb  8 08:51:05 TEST-PC kernel: 6: @0ae835c0  length 8000002a status
0001002a
Feb  8 08:51:05 TEST-PC kernel: 7: @0ae83660  length 8000002a status
0001002a
Feb  8 08:51:05 TEST-PC kernel: 8: @0ae83700  length 8000002a status
0001002a
Feb  8 08:51:05 TEST-PC kernel: 9: @0ae837a0  length 8000002a status
0001002a
Feb  8 08:51:05 TEST-PC kernel: 10: @0ae83840  length 8000002a status
0001002a
Feb  8 08:51:05 TEST-PC kernel: 11: @0ae838e0  length 8000002a status
0001002a
Feb  8 08:51:05 TEST-PC kernel: 12: @0ae83980  length 8000002a status
0001002a
Feb  8 08:51:05 TEST-PC kernel: 13: @0ae83a20  length 8000002a status
0001002a
Feb  8 08:51:05 TEST-PC kernel: 14: @0ae83ac0  length 8000002a status
0001002a
Feb  8 08:51:05 TEST-PC kernel: 15: @0ae83b60  length 8000002a status
8001002a
Feb  8 08:51:05 TEST-PC kernel: eth0: Resetting the Tx ring pointer.
Feb  8 08:51:15 TEST-PC kernel: eth0: transmit timed out, tx_status 00
status e681.
Feb  8 08:51:15 TEST-PC kernel: diagnostics: net 0cd2 media 8880 dma
0000003a fifo 8000
Feb  8 08:51:15 TEST-PC kernel: eth0: Interrupt posted but not delivered
-- IRQ blocked by another device?
Feb  8 08:51:15 TEST-PC kernel: Flags; bus-master 1, dirty 513(1)
current 513(1)
Feb  8 08:51:15 TEST-PC kernel: Transmit list 00000000 vs. 0ae832a0.
Feb  8 08:51:15 TEST-PC kernel: 0: @0ae83200  length 80000057 status
8c010057
Feb  8 08:51:15 TEST-PC kernel: 1: @0ae832a0  length 8000002a status
0001002a
Feb  8 08:51:15 TEST-PC kernel: 2: @0ae83340  length 8000002a status
0001002a
Feb  8 08:51:15 TEST-PC kernel: 3: @0ae833e0  length 8000002a status
0001002a
Feb  8 08:51:15 TEST-PC kernel: 4: @0ae83480  length 8000002a status
0001002a
Feb  8 08:51:15 TEST-PC kernel: 5: @0ae83520  length 8000002a status
0001002a
Feb  8 08:51:15 TEST-PC kernel: 6: @0ae835c0  length 8000002a status
0001002a
Feb  8 08:51:15 TEST-PC kernel: 7: @0ae83660  length 8000002a status
0001002a
Feb  8 08:51:15 TEST-PC kernel: 8: @0ae83700  length 8000023e status
0c01023e
Feb  8 08:51:15 TEST-PC kernel: 9: @0ae837a0  length 80000057 status
0c010057
Feb  8 08:51:15 TEST-PC kernel: 10: @0ae83840  length 80000057 status
0c010057
Feb  8 08:51:15 TEST-PC kernel: 11: @0ae838e0  length 80000057 status
0c010057
Feb  8 08:51:15 TEST-PC kernel: 12: @0ae83980  length 80000057 status
0c010057
Feb  8 08:51:15 TEST-PC kernel: 13: @0ae83a20  length 80000057 status
0c010057
Feb  8 08:51:15 TEST-PC kernel: 14: @0ae83ac0  length 80000057 status
0c010057
Feb  8 08:51:15 TEST-PC kernel: 15: @0ae83b60  length 80000057 status
8c010057
Feb  8 08:51:15 TEST-PC kernel: eth0: Resetting the Tx ring pointer.
Feb  8 08:51:25 TEST-PC kernel: eth0: transmit timed out, tx_status 00
status e681.
Feb  8 08:51:25 TEST-PC kernel: diagnostics: net 0cd2 media 8880 dma
0000003a fifo 8000
Feb  8 08:51:25 TEST-PC kernel: eth0: Interrupt posted but not delivered
-- IRQ blocked by another device?
Feb  8 08:51:25 TEST-PC kernel: Flags; bus-master 1, dirty 529(1)
current 529(1)
Feb  8 08:51:25 TEST-PC kernel: Transmit list 00000000 vs. 0ae832a0.
Feb  8 08:51:25 TEST-PC kernel: 0: @0ae83200  length 80000057 status
8c010057
Feb  8 08:51:25 TEST-PC kernel: 1: @0ae832a0  length 80000057 status
0c010057
Feb  8 08:51:25 TEST-PC kernel: 2: @0ae83340  length 80000057 status
0c010057
Feb  8 08:51:25 TEST-PC kernel: 3: @0ae833e0  length 80000057 status
0c010057
Feb  8 08:51:25 TEST-PC kernel: 4: @0ae83480  length 80000057 status
0c010057
Feb  8 08:51:25 TEST-PC kernel: 5: @0ae83520  length 80000057 status
0c010057
Feb  8 08:51:25 TEST-PC kernel: 6: @0ae835c0  length 80000057 status
0c010057
Feb  8 08:51:25 TEST-PC kernel: 7: @0ae83660  length 80000057 status
0c010057
Feb  8 08:51:25 TEST-PC kernel: 8: @0ae83700  length 80000057 status
0c010057
Feb  8 08:51:25 TEST-PC kernel: 9: @0ae837a0  length 80000057 status
0c010057
Feb  8 08:51:25 TEST-PC kernel: 10: @0ae83840  length 80000057 status
0c010057
Feb  8 08:51:25 TEST-PC kernel: 11: @0ae838e0  length 80000057 status
0c010057
Feb  8 08:51:25 TEST-PC kernel: 12: @0ae83980  length 80000057 status
0c010057
Feb  8 08:51:25 TEST-PC kernel: 13: @0ae83a20  length 80000057 status
0c010057
Feb  8 08:51:25 TEST-PC kernel: 14: @0ae83ac0  length 80000057 status
0c010057
Feb  8 08:51:25 TEST-PC kernel: 15: @0ae83b60  length 80000057 status
8c010057
Feb  8 08:51:25 TEST-PC kernel: eth0: Resetting the Tx ring pointer.
Feb  8 08:51:35 TEST-PC kernel: eth0: transmit timed out, tx_status 00
status e681.
Feb  8 08:51:35 TEST-PC kernel: diagnostics: net 0cd2 media 8880 dma
0000003a fifo 8000
Feb  8 08:51:35 TEST-PC kernel: eth0: Interrupt posted but not delivered
-- IRQ blocked by another device?
Feb  8 08:51:35 TEST-PC kernel: Flags; bus-master 1, dirty 545(1)
current 545(1)
Feb  8 08:51:35 TEST-PC kernel: Transmit list 00000000 vs. 0ae832a0.
Feb  8 08:51:35 TEST-PC kernel: 0: @0ae83200  length 80000057 status
8c010057
Feb  8 08:51:35 TEST-PC kernel: 1: @0ae832a0  length 80000057 status
0c010057
Feb  8 08:51:35 TEST-PC kernel: 2: @0ae83340  length 80000057 status
0c010057
Feb  8 08:51:35 TEST-PC kernel: 3: @0ae833e0  length 80000057 status
0c010057
Feb  8 08:51:35 TEST-PC kernel: 4: @0ae83480  length 80000057 status
0c010057
Feb  8 08:51:35 TEST-PC kernel: 5: @0ae83520  length 80000057 status
0c010057
Feb  8 08:51:35 TEST-PC kernel: 6: @0ae835c0  length 80000057 status
0c010057
Feb  8 08:51:35 TEST-PC kernel: 7: @0ae83660  length 80000057 status
0c010057
Feb  8 08:51:35 TEST-PC kernel: 8: @0ae83700  length 80000057 status
0c010057
Feb  8 08:51:35 TEST-PC kernel: 9: @0ae837a0  length 80000057 status
0c010057
Feb  8 08:51:35 TEST-PC kernel: 10: @0ae83840  length 80000057 status
0c010057
Feb  8 08:51:35 TEST-PC kernel: 11: @0ae838e0  length 80000057 status
0c010057
Feb  8 08:51:35 TEST-PC kernel: 12: @0ae83980  length 80000057 status
0c010057
Feb  8 08:51:35 TEST-PC kernel: 13: @0ae83a20  length 80000057 status
0c010057
Feb  8 08:51:35 TEST-PC kernel: 14: @0ae83ac0  length 80000057 status
0c010057
Feb  8 08:51:35 TEST-PC kernel: 15: @0ae83b60  length 80000057 status
8c010057
Feb  8 08:51:35 TEST-PC kernel: eth0: Resetting the Tx ring pointer.
Feb  8 08:51:45 TEST-PC kernel: eth0: transmit timed out, tx_status 00
status e601.
Feb  8 08:51:45 TEST-PC kernel: diagnostics: net 0cd2 media 8880 dma
0000003a fifo 8000
Feb  8 08:51:45 TEST-PC kernel: eth0: Interrupt posted but not delivered
-- IRQ blocked by another device?
Feb  8 08:51:45 TEST-PC kernel: Flags; bus-master 1, dirty 561(1)
current 561(1)
Feb  8 08:51:45 TEST-PC kernel: Transmit list 00000000 vs. 0ae832a0.
Feb  8 08:51:45 TEST-PC kernel: 0: @0ae83200  length 80000057 status
8c010057
Feb  8 08:51:45 TEST-PC kernel: 1: @0ae832a0  length 80000057 status
0c010057
Feb  8 08:51:45 TEST-PC kernel: 2: @0ae83340  length 80000057 status
0c010057
Feb  8 08:51:45 TEST-PC kernel: 3: @0ae833e0  length 80000057 status
0c010057
Feb  8 08:51:45 TEST-PC kernel: 4: @0ae83480  length 80000057 status
0c010057
Feb  8 08:51:45 TEST-PC kernel: 5: @0ae83520  length 80000057 status
0c010057
Feb  8 08:51:45 TEST-PC kernel: 6: @0ae835c0  length 80000057 status
0c010057
Feb  8 08:51:45 TEST-PC kernel: 7: @0ae83660  length 80000057 status
0c010057
Feb  8 08:51:45 TEST-PC kernel: 8: @0ae83700  length 80000057 status
0c010057
Feb  8 08:51:45 TEST-PC kernel: 9: @0ae837a0  length 8000006a status
0c01006a
Feb  8 08:51:45 TEST-PC kernel: 10: @0ae83840  length 80000056 status
0c010056
Feb  8 08:51:45 TEST-PC kernel: 11: @0ae838e0  length 8000023e status
0c01023e
Feb  8 08:51:45 TEST-PC kernel: 12: @0ae83980  length 8000023e status
0c01023e
Feb  8 08:51:45 TEST-PC kernel: 13: @0ae83a20  length 8000023e status
0c01023e
Feb  8 08:51:45 TEST-PC kernel: 14: @0ae83ac0  length 80000057 status
0c010057
Feb  8 08:51:45 TEST-PC kernel: 15: @0ae83b60  length 80000057 status
8c010057
Feb  8 08:51:45 TEST-PC kernel: eth0: Resetting the Tx ring pointer.
Feb  8 08:51:55 TEST-PC kernel: eth0: transmit timed out, tx_status 00
status e601.
Feb  8 08:51:55 TEST-PC kernel: diagnostics: net 0cd2 media 8880 dma
0000003a fifo 0000
Feb  8 08:51:55 TEST-PC kernel: eth0: Interrupt posted but not delivered
-- IRQ blocked by another device?
Feb  8 08:51:55 TEST-PC kernel: Flags; bus-master 1, dirty 577(1)
current 577(1)
Feb  8 08:51:55 TEST-PC kernel: Transmit list 00000000 vs. 0ae832a0.
Feb  8 08:51:55 TEST-PC kernel: 0: @0ae83200  length 80000057 status
8c010057
Feb  8 08:51:55 TEST-PC kernel: 1: @0ae832a0  length 80000057 status
0c010057
Feb  8 08:51:55 TEST-PC kernel: 2: @0ae83340  length 80000057 status
0c010057
Feb  8 08:51:55 TEST-PC kernel: 3: @0ae833e0  length 80000057 status
0c010057
Feb  8 08:51:55 TEST-PC kernel: 4: @0ae83480  length 80000057 status
0c010057
Feb  8 08:51:55 TEST-PC kernel: 5: @0ae83520  length 80000057 status
0c010057
Feb  8 08:51:55 TEST-PC kernel: 6: @0ae835c0  length 80000057 status
0c010057
Feb  8 08:51:55 TEST-PC kernel: 7: @0ae83660  length 80000057 status
0c010057
Feb  8 08:51:55 TEST-PC kernel: 8: @0ae83700  length 80000057 status
0c010057
Feb  8 08:51:55 TEST-PC kernel: 9: @0ae837a0  length 80000057 status
0c010057
Feb  8 08:51:55 TEST-PC kernel: 10: @0ae83840  length 80000057 status
0c010057
Feb  8 08:51:55 TEST-PC kernel: 11: @0ae838e0  length 80000057 status
0c010057
Feb  8 08:51:55 TEST-PC kernel: 12: @0ae83980  length 80000057 status
0c010057
Feb  8 08:51:55 TEST-PC kernel: 13: @0ae83a20  length 80000057 status
0c010057
Feb  8 08:51:55 TEST-PC kernel: 14: @0ae83ac0  length 80000057 status
0c010057
Feb  8 08:51:55 TEST-PC kernel: 15: @0ae83b60  length 80000057 status
8c010057
Feb  8 08:51:55 TEST-PC kernel: eth0: Resetting the Tx ring pointer.

Another test I made is to patch the omega0 package to print some log
entries about the IRQ number on Fiasco console each time 'irq_consume'
in l4/pkg/omega0/server/src/irq_threads.c is called. After starting
these tests, the output seems to stop with IRQ 10 (eth1 in our case). I
expect this to be the 'return' button signal because another test done
on qemu with direct input shows that the last interrupt listed in the
output was the keyboard's one.

I am also going to test this on linux-2.6.30-l4 and check if it will be
the same there...

Lots of information, but I hope that will help you.

Regards,
 Andreas