Re: [PATCH] rt2x00: rt2800: fix zeroing skb structure

[Larry Finger]

On 07/30/2011 12:07 PM, Justin Piszcz wrote:
> On Sat, 30 Jul 2011, Andreas Hartmann wrote:
>
> > Hi Justin,
> >
> > if you want to test, if the module works stable, run this script for one
> > or two hours. It will stress the driver and the hardware.
> >
> > If it doesn't crash and if the throughput is stable, you can hope, that
> > the driver is ok for daily work.
> >
> >
> > #!/bin/sh
> >
> > dest="server" # set the servername
> >
> > while true ; do
> > netperf -t TCP_MAERTS -H $dest
> > netperf -t TCP_STREAM -H $dest
> > netperf -t TCP_SENDFILE -H $dest
> > done
> >
> >
> > Start the script on the client. On the server start netserver.
> > You get netperf from http://www.netperf.org/netperf/
> >
> >
> > Andreas
>
> Hello Andreas,
>
> Thanks for the suggestion; however, it is crashing repeatedly after about 5-10
> minutes, so it is not needed yet.
>
> Here you go, crash 2:
> http://home.comcast.net/~jpiszcz/20110730/2630-rt2800usb-crash2p1.jpg
> http://home.comcast.net/~jpiszcz/20110730/2630-rt2800usb-crash2p2.jpg

This is likely progress as the crash is in a different place.

The page fault this time is at rt2800usb_get_txwi+0xc. That translates back to 
line 382 of file rt2800usb.c, which says

	if (entry->queue->qid == QID_BEACON)

I have no idea why entry->queue->qid is wrong here, but likely one of the 
smarter people who knows a lot more about the device will be able to figure it out.

Larry
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