Problems using the libertas

[Kalkere, Giridhara(IE10)]

Dear All,

We are using the SD8686 wifi chipset and linux-2.6.31 linux kernel from Freescale on IMX35 board.

We found some kernel errors during the wifi usage.  Please find the below kernel log.

Any thoughts about it.

-----------[ cut here ]------------
WARNING: at net/sched/sch_generic.c:246 dev_watchdog+0x188/0x28c()
NETDEV WATCHDOG: eth1 (libertas_sdio): transmit queue 0 timed out
Modules linked in: libertas_sdio libertas
[<c00883cc>] (unwind_backtrace+0x0/0xd4) from [<c00a4c48>] (warn_slowpath_common
+0x4c/0x68)
[<c00a4c48>] (warn_slowpath_common+0x4c/0x68) from [<c00a4ca0>] (warn_slowpath_f
mt+0x28/0x38)
[<c00a4ca0>] (warn_slowpath_fmt+0x28/0x38) from [<c027da28>] (dev_watchdog+0x188
/0x28c)
[<c027da28>] (dev_watchdog+0x188/0x28c) from [<c00ae934>] (run_timer_softirq+0x1
54/0x1f4)
[<c00ae934>] (run_timer_softirq+0x154/0x1f4) from [<c00a9cfc>] (__do_softirq+0xd
8/0x1c8)
[<c00a9cfc>] (__do_softirq+0xd8/0x1c8) from [<c00aa068>] (irq_exit+0x44/0x98)
[<c00aa068>] (irq_exit+0x44/0x98) from [<c0083070>] (_text+0x70/0x8c)
[<c0083070>] (_text+0x70/0x8c) from [<c00839c8>] (__irq_svc+0x48/0x88)
Exception stack(0xc03d3f80 to 0xc03d3fc8)
3f80: 00000001 00000000 fc280000 603f4208 c03d2000 c03f61c4 c001fc98 c03d6000
3fa0: 8001e42c 4117b363 8001e3f8 00000000 c03d3f10 c03d3fc8 c0084d20 c0084d24
3fc0: 80000013 ffffffff
[<c00839c8>] (__irq_svc+0x48/0x88) from [<c0084d24>] (default_idle+0x24/0x2c)
[<c0084d24>] (default_idle+0x24/0x2c) from [<c0084c14>] (cpu_idle+0x44/0x94)
[<c0084c14>] (cpu_idle+0x44/0x94) from [<c000897c>] (start_kernel+0x210/0x26c)
[<c000897c>] (start_kernel+0x210/0x26c) from [<80008034>] (0x80008034)
---[ end trace c66d4c0aad1035ef ]---
libertas: tx watch dog timeout
libertas: tx watch dog timeout
CheckHaTCTrigger evtsrc=1
libertas: tx watch dog timeout
libertas: command 0x000b timed out
libertas: tx watch dog timeout



Thanks  and regards,
Giri
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