Disk Errors
Al Plant
noc at hdk5.net
Mon Dec 15 10:32:11 PST 2008
Wojciech Puchar wrote:
>> ad2: FAILURE - READ_DMA timed out LBA=0
>> ad2: TIMEOUT - READ_DMA retrying (1 retry left) LBA=1
>> ad2: TIMEOUT - READ_DMA retrying (0 retries left) LBA=1
>>
>> The flash drive is detected with 3940272 sectors. Is there a way to
>> control the LBA= parameter? Does it matter if I try?
> no.
>
>>
>> How can I control the number of retries?
>>
>> I read that FreeBSD doesn't use the BIOS at least for CHS. Does
>> FreeBSD use the BIOS for PIO and UDMA modes?
> no.
>
> try disabling dma with
>
> set hw.ata.ata_dma=0
>
> bootloader command
> _______________________________________________
> freebsd-questions at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> To unsubscribe, send any mail to
> "freebsd-questions-unsubscribe at freebsd.org"
>
Aloha,
Wojciech, could be on the right track. I have recently had to do this on
several different FreeBSd server boxes to stop these errors. Both
current FreeBSD 7 and 8 have done this. Hardware didnt seem to matter.
~Al Plant - Honolulu, Hawaii - Phone: 808-284-2740
+ http://hawaiidakine.com + http://freebsdinfo.org +
+ http://aloha50.net - Supporting - FreeBSD 6.* - 7.* - 8.* +
< email: noc at hdk5.net >
"All that's really worth doing is what we do for others."- Lewis Carrol
More information about the freebsd-questions
mailing list