diff options
| author | Fugang Duan <B38611@freescale.com> | 2012-08-09 17:59:44 +0800 |
|---|---|---|
| committer | Fugang Duan <B38611@freescale.com> | 2012-08-10 13:47:06 +0800 |
| commit | 91a0c892263e57ecde9e9ff38be3acdb7f66a17f (patch) | |
| tree | 4ad6fd182f68e6512b4615e4f36169a93885c8a2 /sound | |
| parent | 9285c73237990f5b4e461d0a634c711abb5d05e4 (diff) | |
ENGR00180288 - FEC : Fix kernel dump about eth0
Kernel dump when do wifi stress test with suspend and resume as below:
eth0: tx queue full!.
remove wake up source irq 103
PM: resume of devices complete after 348.934 msecs
Restarting tasks ... done.
------------[ cut here ]------------
WARNING: at net/sched/sch_generic.c:255 dev_watchdog+0x284/0x2a8()
NETDEV WATCHDOG: eth0 (fec): transmit queue 0 timed out
Modules linked in: ar6000
[<8004482c>] (unwind_backtrace+0x0/0xf8) from
[<80068cd0>] (warn_slowpath_common+0x4c/0x64)
[<80068cd0>] (warn_slowpath_common+0x4c/0x64)from
[<80068d7c>] (warn_slowpath_fmt+0x30/0x40)
[<80068d7c>] (warn_slowpath_fmt+0x30/0x40) from
[<803f0c50>] (dev_watchdog+0x284/0x2a8)
[<803f0c50>] (dev_watchdog+0x284/0x2a8) from
[<80074430>] (run_timer_softirq+0xec/0x214)
[<80074430>] (run_timer_softirq+0xec/0x214) from
[<8006e524>] (__do_softirq+0xac/0x140)
[<8006e524>] (__do_softirq+0xac/0x140) from
[<8006ea60>] (irq_exit+0x94/0x9c)
[<8006ea60>] (irq_exit+0x94/0x9c) from
[<80039240>] (do_local_timer+0x54/0x70)
[<80039240>] (do_local_timer+0x54/0x70) from
[<8003ea0c>] (__irq_svc+0x4c/0xe8)
Exception stack(0x80a2bf68 to 0x80a2bfb0)
bf60: 0000001f 80a3babc 80a2bfb0 00000000 80a2a000 80a7b8e4
bf80: 804befcc 80a3ee7c 1000406a 412fc09a 00000000 00000000 80a81440 80a2bfb0
bfa0: 8003fa64 8003fa68 60000013 ffffffff
[<8003ea0c>] (__irq_svc+0x4c/0xe8) from [<8003fa68>] (default_idle+0x24/0x28)
[<8003fa68>] (default_idle+0x24/0x28) from [<8003fc60>] (cpu_idle+0xbc/0xfc)
[<8003fc60>] (cpu_idle+0xbc/0xfc) from [<80008878>] (start_kernel+0x258/0x29c)
[<80008878>] (start_kernel+0x258/0x29c) from [<10008040>] (0x10008040)
---[ end trace 30671ac42e272c2d ]---
But ethernet and system still be alive. In sometime,the issue
will cause system hang like "nfs: server 10.192.242.179 not
responding, still trying".
The root cause is tx buffer descriptors are not cleaned when
ethernet resume back.
Signed-off-by: Fugang Duan <B38611@freescale.com>
Diffstat (limited to 'sound')
0 files changed, 0 insertions, 0 deletions