Re: ath10k hits warning in sta_info.c:839.

Ben Greear
2013-10-22T22:23:00Z

On 10/22/2013 11:25 AM, Ben Greear wrote:
> Kernel is stock 'ath' tree, with small printk to debug an ath10k
> crash.
>
> This is FYI for now...will be looking at other ath10k crash bugs
> before digging into this tone.
>
> Setup is 2 stations trying to associate to same AP, which causes
> endless failures and firmware crashes. Good for chasing bugs :)
>
>
> DMAR:[fault reason 05] PTE Write access is not set
> dmar: DRHD: handling fault status reg 3
> dmar: DMAR:[DMA Write] Request device [05:00.0] fault addr ffd52000
> DMAR:[fault reason 05] PTE Write access is not set
> dmar: DRHD: handling fault status reg 3
> dmar: DMAR:[DMA Write] Request device [05:00.0] fault addr ffd52000
> DMAR:[fault reason 05] PTE Write access is not set
>
> sta300: authentication with 00:03:83:3d:30:aa timed out
> [root@ct523-9292 ~]# ath10k: Failed to delete peer: 00:03:83:3d:30:aa for VDEV: 1
> ath10k: WMI vdev stop failed: ret -108

> ------------[ cut here ]------------
> WARNING: CPU: 1 PID: 6 at /mnt/sda/home/greearb/git/ath/net/mac80211/sta_info.c:839 __sta_info_destroy+0x12)
> Modules linked in: nf_nat_ipv4 nf_nat veth 8021q garp stp mrp llc macvlan pktgen lockd f71882fg coretemp hw]

I think this may be a result of whatever bug or limitation
caused the firmware to error and/or crash when adding a second
station VIF and trying to associate it to the same AP.

Probably not a problem with the rest of the wifi stacks.

Thanks,
Ben

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