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Re: memory clobber in rx path, maybe related to ath9k.

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On 10/14/2010 04:39 PM, Luis R. Rodriguez wrote:
On Thu, Oct 14, 2010 at 4:30 PM, Ben Greear<greearb@xxxxxxxxxxxxxxx>  wrote:
On 10/14/2010 04:19 PM, Luis R. Rodriguez wrote:

Ok please try this patch, it cures it for me.

Well, it got a lot further than normal, but it still
hit the poison check after a few minutes.

Current test case is my app loading 130 or so stations, each running
wpa_supplicant.  All were created, and quite a few had associated
when the poison check hit.

So, it definitely looks like a step in the right direction, but
not fully fixed yet.

I'll do some more testing with this patch applied and using just my
perl script to make sure the problem is reproducible outside of my
application.

Ok, whatever userspace does it should not corrupt to kernel, unless
its poking /dev/mem

Sure, but it's nice to have a simpler test case.

I ran my script with 32 stations for maybe 20 minutes...seemed to be doing
OK as far as stability goes..then it crashed in the divide-by-zero ani thing.

I have to run home now, but I'll try my script with more interfaces
and/or some traffic mix, etc, to see if I can get another reasonable way
to reproduce this w/out my big binary application.

I can also work on the divide-by-zero bug if no one beats me to it.

Thanks,
Ben


   Luis


--
Ben Greear <greearb@xxxxxxxxxxxxxxx>
Candela Technologies Inc  http://www.candelatech.com

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