Re: ath(4) seems to freeze NetBSD/amd64 6.0_BETA2 system

[Jukka Salmi <j+nbsd%2012.salmi.ch@localhost>]

Hello

Saifi Khan --> current-users (2012-09-06 21:30:23 +0530):
> 
> On Sun, 2 Sep 2012, Jukka Salmi wrote:
> 
> >Hello
> >
> >I'm running NetBSD/amd64 6.0_BETA2 on a Soekris net6501 board and see
> >reproducible system crashes probably related to ath(4).
> >
> >I've tried with two different PCIe wireless adapters; with both of them
> >the system freezes (no ddb(4) prompt on the console, though) soon after
> >some packets have been received on the ath0 interface.
> >
> >dmesg(8) and pcictl(8) output of the adapters in question:
> >
> >D-Link DWA-556
> >--------------
> >
> >ath0 at pci13 dev 0 function 0: Atheros 5416
> >ath0: interrupting at ioapic0 pin 19
> >ath0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
> >ath0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 
> >36Mbps 48Mbps 54Mbps
> >ath0: mac 12.10 phy 8.1 radio 13.0
> >
> >013:00:0: Atheros Communications product 0x0024 (miscellaneous network, 
> >revision 0x01)
> >
> >
> >TP-Link TL-WN781ND
> >------------------
> >
> >ath0 at pci13 dev 0 function 0: Atheros 9285
> >ath0: interrupting at ioapic0 pin 19
> >ath0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
> >ath0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 
> >36Mbps 48Mbps 54Mbps
> >ath0: mac 192.2 phy 14.0 radio 12.0
> >
> >013:00:0: Atheros Communications AR9285 Wireless LAN (miscellaneous network, 
> >revision 0x01)
> >
> >
> >Is anybody else seeing this?  Any hints what to do?
> >
> >
> 
> Hi:
> 
> i'm running NetBSD-current on my laptop and it has exactly the same
> Atheros chipset that you mention.
> 
> Please see below the output of 'pcictl /dev/pci0 list' command
[...]
> 004:00:0: Atheros Communications AR9285 Wireless LAN (miscellaneous network, 
> revision 0x01)
[...]
> 
> In fact, post using boot.iso, i've entirely depended on Atheros
> (ath0) for downloading all the sets, sources, pkgsrc and pkgsrc-wip.
> 
> There was no freeze up or crashes, especially given the fact that
> the system was at 98% cpu utilization, very low on memory and
> packages were downloading over ath0 link.

Strange, since I just tried with yesterday's -current and could easily
reproduce the problem (at least with the AR5416 card, I didn't even try
with the AR9285 card): the system freezes (without dropping to ddb(4))
as soon as some traffic passes through ath0...

But thanks for your hints!


Cheers, Jukka

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