Libertas timeout errors

[Matt Rosenthal]

Hi All,
I am building a Android based tablet using a TI OMAP3530 and marvell
8686 wifi chip.  I am using Linux 2.6.32.
Whenever I attempt to transfer large amounts of data(Either
downloading a large file, streaming a movie) I get the following
errors.  After I get this error the wifi no longer works and I must
power cycle the device

libertas: command 0x000b timed out
libertas: requeueing command 0x000b due to timeout (#1)
libertas: command 0x000b timed out
libertas: requeueing command 0x000b due to timeout (#2)
libertas: command 0x000b timed out
libertas: requeueing command 0x000b due to timeout (#3)
libertas: command 0x000b timed out
libertas: Excessive timeouts submitting command 0x000b
libertas: PREP_CMD: command 0x000b failed: -110
libertas: command 0x000b timed out
libertas: requeueing command 0x000b due to timeout (#1)
libertas: command 0x000b timed out
libertas: requeueing command 0x000b due to timeout (#2)
libertas: command 0x000b timed out
libertas: requeueing command 0x000b due to timeout (#3)
libertas: command 0x000b timed out
libertas: Excessive timeouts submitting command 0x000b
libertas: PREP_CMD: command 0x000b failed: -110
libertas: command 0x000b timed out
libertas: requeueing command 0x000b due to timeout (#1)
libertas: command 0x000b timed out
libertas: requeueing command 0x000b due to timeout (#2)
libertas: command 0x000b timed out
libertas: requeueing command 0x000b due to timeout (#3)
libertas: command 0x000b timed out
libertas: Excessive timeouts submitting command 0x000b

That repeats and I also see this

------------[ cut here ]------------ WARNING: at net/sched/sch_generic.c:255
dev_watchdog+0x13c/0x21c() NETDEV WATCHDOG: wlan0 (libertas_sdio): transmit
queue 0 timed out Modules linked in: omaplfb pvrsrvkm sdmak lpm_omap3530
dsplinkk cmemk [<c0091934>] (unwind_backtrace+0x0/0xd8) from [<c00b7310>]
(warn_slowpath_common+0x48/0x60) [<c00b7310>] (warn_slowpath_common+0x48/0x60)
from [<c00b7360>] (warn_slowpath_fmt+0x24/0x30) [<c00b7360>]
(warn_slowpath_fmt+0x24/0x30) from [<c0378838>] (dev_watchdog+0x13c/0x21c)
[<c0378838>] (dev_watchdog+0x13c/0x21c) from [<c00bfdf4>]
(run_timer_softirq+0x140/0x1c4) [<c00bfdf4>] (run_timer_softirq+0x140/0x1c4)
from [<c00bbeec>] (__do_softirq+0x70/0xf8) [<c00bbeec>]
(__do_softirq+0x70/0xf8)
from [<c00bbfb4>] (irq_exit+0x40/0x8c) [<c00bbfb4>] (irq_exit+0x40/0x8c) from
[<c008b074>] (asm_do_IRQ+0x74/0x90) [<c008b074>] (asm_do_IRQ+0x74/0x90) from
[<c008ba30>] (__irq_svc+0x30/0x80) Exception stack(0xc0573f78 to 0xc0573fc0)
3f60:                                                       00000000 40000013
3f80: 40000013 00000000 c0572000 c0575c80 c05b7484 c0575c78 80029d04 411fc083
3fa0: 0000001f 00000000 00000b80 c0573fc0 c009bf5c c009c774 60000013 ffffffff
[<c008ba30>] (__irq_svc+0x30/0x80) from [<c009c774>] (omap3_pm_idle+0x48/0x4c)
[<c009c774>] (omap3_pm_idle+0x48/0x4c) from [<c008d170>] (cpu_idle+0x48/0x88)
[<c008d170>] (cpu_idle+0x48/0x88) from [<c0008a64>] (start_kernel+0x238/0x290)
[<c0008a64>] (start_kernel+0x238/0x290) from [<80008034>] (0x80008034)
---[ end trace 04d7e3815b73321d ]---


Any help is much appreciated.

Thanks

Matt

-- 
Matthew Rosenthal
TPK USA, LLC
Touch Revolution BU


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