Problems using the libertas

[Dan Williams]

On Wed, 2013-03-20 at 12:01 +0000, Kalkere, Giridhara(IE10) wrote:
> 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.

Typically this is a firmware crash.  What firmware version is the 8686
using?

Dan

> 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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