ad0: FAILURE - WRITE_DMA

[Søren Schmidt]

Mikhail P. wrote:
> On Sunday 10 October 2004 23:30, Mikhail P. wrote:
> 
>>On Saturday 09 October 2004 17:01, Mikhail P. wrote:
>>
>>>I also got another message off-list, where author suggested to play with
>>>UDMA values. I switched from UDMA100 to UDMA66. System's uptime is 12
>>>hours, and no timeouts so far.. but I'm quite sure they will get back in
>>>few days.
>>
>>1.5 days of uptime, running in UDMA66 changes nothing. Still getting
> 
> 
> Well, now those timeouts popped up on 5.3-BETA7 system with 4 IDE drives.. 
> They start appearing with high disk activity.
> System had FreeBSD-4.7 prior to that, and has been rock solid for almost a 
> year. Drives have no problems, that's for sure (4.7 did not show up any 
> timeouts, with uptime for months)..
> 
> I don't know what to think - is ATA driver horribly broken in 5.x?

Well, thats not up to me to judge I guess, but have you tried to change 
the tripping point for using 48Bit addressing as I suggested earlier ?
I cant reproduce this problem with any of the shelfmeters of ATA gear I 
have here, so your help is needed or it will stay horribly broken :)

-- 

-Søren