ath10k driver crashes whenever firmware crashes on ARM SoC

Ben Greear greearb at
Wed Mar 12 12:01:07 EDT 2014

On 03/12/2014 01:22 AM, Kalle Valo wrote:
> Ben Greear <greearb at> writes:
>> On 03/11/2014 12:33 AM, Kalle Valo wrote:
>> oes this ring a bell for anyone?  I think I can also export the
>>>> traces as csv in case someone wants to look at them.
>>> I showed your analysis to an HW engineer and the response I got was
>>> "don't do that" (= don't use the cold reset).
>> Earlier (1/22/14), you said a cold reset problem in CUS223 was due primarily to
>> a bad piece of hardware (or bad design, or something) in the CUS223.
>> I guess the problem must extend to other NICs as well, and
>> maybe other reasons for causing the hangs?
> I don't know the details, but I understood this only happens on CUS223.
> If someone has seen these cold reset problems on other boards, like
> XB140, I would be very keen to hear about it.

Come to think of it, I'm not sure I've seen a hard lockup of the machine
on non CUS223 machines, but I have seen cases where non CUS223 NIC wedges
and the existing restart does not recover it.

This requires a reboot to recover from.


Ben Greear <greearb at>
Candela Technologies Inc

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