Re: WARNING at net/mac80211/sta_info.c:1057 (__sta_info_destroy_part2())

[Ben Greear]

On 10/20/2019 08:12 AM, Tomislav Požega wrote:
> > -11 is -EAGAIN which would mean that the HTC credits have run out some
> >  reason for the WMI command:
> >
> > if (ep->tx_credits < credits) {
> >         ath10k_dbg(ar, ATH10K_DBG_HTC,
> >                 "htc insufficient credits ep %d required %d available %d\n",
> >                 eid, credits, ep->tx_credits);
> >         spin_unlock_bh(&htc->tx_lock);
> >         ret = -EAGAIN;
> >         goto err_pull;
> > }
> >
> > Credits can run out, for example, if there's a lot of WMI command/event
> > activity and are not returned during the 3s wait, firmware crashed or
> > problems with the PCI bus.
>
> Hi
>
> Can this occur if the target memory is not properly allocated?

I have only seen this on wave-1 cards, and it is usually paired with situations
where the wave-1 stops doing WMI related interrupts properly as best as I can
understand.  If I force the firmware to poll instead of waiting for irqs, then
WMI communication will work for a while...I have not implemented that on the
driver side though, so I still see these WMI timeout issues.

Thanks,
Ben

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