freebsd stable - Mar 2006 - Freezes in wireless bridge

Hi,

We have two bridges running FreeBSD 6.1-BETA1 and we have a lot of 
freezes in a week, it's happening when trafic is high, but it has ever 
happened when we was changing dev.ath.0.acktimeout.

There aren't dumps, all CPU is freezed, state of leds in kayboard 
doesn't change, only leds of wireless card (D-Link G520) are blinking. 
Some times is printed on console DMA erros of ad0 before system to freeze.

We have already tried to disable ATA DMA (hw.ata.ata_dma=0, 
hw.ata.atapi_dma=0, hw.ata.wc=0), but system freezes yet.

This bridge is runnig on motherboard MSI VIAK8M with 03 Atheros board 
(D-Link G520), but this problem happens using other motherboards and CPUs.

Is there anyway to force dumps?

Is there any watchdog hardware for FreeBSD 6.X?

All sounds like when we were using FreeBSD 2.x + SCSI + ATI S3 Virge, 
the problem was XFree86.

Paulo Fragoso.

Paulo Fragoso wrote:
> Hi,
>
> We have two bridges running FreeBSD 6.1-BETA1 and we have a lot of 
> freezes in a week, it's happening when trafic is high, but it has ever 
> happened when we was changing dev.ath.0.acktimeout.
>
> There aren't dumps, all CPU is freezed, state of leds in kayboard 
> doesn't change, only leds of wireless card (D-Link G520) are blinking. 
> Some times is printed on console DMA erros of ad0 before system to 
> freeze. 

After cvsup src-all upgrade (2006-03-04) which had changed version of 
ath_hal from 0.9.14.9 to  0.9.16.16 and after we had changed bridge 
configuration from net.link.ether.bridge.config="..." to added device 
if_bridge, we can't get anymore freezes:

$ uptime
20:35  up 7 days,  4:38, 1 user, load averages: 0,03 0,03 0,00

Is there any problem with bridge (net.link.ether.bridge.config) or old 
ath_hal? We can't found any change.log about this problem.

Paulo Fragoso.