On Wed, Jul 17, 2013 at 12:48:30PM +0100, Pedro Francisco wrote:

On Tue, Jul 16, 2013 at 11:27 AM, Stanislaw Gruszka [off-list ref] wrote:

quoted

quoted

I seem only to be able to trigger it with disable_hw_scan=0, I need
further testing with disable_hw_scan=1 (I use disable_hw_scan=0
because it prevents me from getting disconnected from eduroam Cisco
APs -- haven't tested disable_hw_scan=0 since the VOIP-friendly SW
scanning patch, however).

Do you want the log anyway? (modprobe iwl3945 debug=0x47ffffff
disable_hw_scan=0 and runtime PCI powersave also enabled -- I don't
know if it matters).

As this is not causing troubles with default disable_hw_scan option,
I'll post that patch.

My mistake, I can trigger error conditions _independently_ of
disable_hw_scan option being enabled or disabled, as long as powersave
is enabled.

I'll send you a private email with the logs.

I think I found bug which couse this firmware crash. We have only 5
queues so updating write_ptr for txq[5] can cause random value write
to HBUS_TARG_WRPTR register. I also added spin_lock to do not abuse
writes we do in tx skb.

Please test attached patch (with powersave on :-)

Stanislaw