On 20.07.2010 13:55, Ståle Kristoffersen wrote: > On 2010-07-20 at 12:17, Marius Strobl wrote: >> On Mon, Jul 19, 2010 at 07:06:54PM +0200, Stle Kristoffersen wrote: >>> On 2010-07-18 at 14:20, Marius Strobl wrote: >>>>>> Downgrading now... >>>>> >>>>> And it crashed again, with current from r209598... >>>>> >>>> >>>> Ok, this at least means that your problem isn't caused by the recent >>>> changes to mpt(4) as the pre-r209599 version only differed from the >>>> 8-STABLE one in a cosmetic change at that time. >>> >>> I have another data-point, I cvsup'ed to the latest current again, and >>> rebuilt without INVARIANT and WITNESS, and now it seems to survive the >>> timeouts. >> >> That's more or less expected as the sanity check issuing the panic >> just isn't compiled in then. However, my understanding was that with >> STABLE you don't get the timeouts in the first place, or do you see >> them there also? > > I got the timeouts with STABLE as well, that was the reason for me to > try out CURRENT. I'm sorry I didn't mention that earlier. > > My main concern is to get rid of the timeouts, but a panic on one can't be > right. How can I debug this further? I can get timeout fairly consistent by > putting a bit of load on the drives. If it would help I can also provide > remote access. > > I'm trying to update the firmware on some of the drives now to see if that > helps with the timeouts. Sorry for the late response here, but what you're describing matches fairly well what I saw with RELENG_8 (just after 8.0 was released), but luckily I didn't have any disks on my MPT, just my tape autoloader. Random timeouts, and then bus resets (that made tape IO unreliable). The bad news, is that I had the exact same trouble with OpenSolaris (134), and something-similar with Linux (can't remember versions), at the time. I never did find a solution, and ended up throwing windows on the box, just to get reliable backups. My MPT is a 3801 LSI1068e based card running the latest bios. //Svein -- --------+-------------------+------------------------------- /"\ |Svein Skogen | svein_at_d80.iso100.no \ / |Solberg Østli 9 | PGP Key: 0xE5E76831 X |2020 Skedsmokorset | svein_at_jernhuset.no / \ |Norway | PGP Key: 0xCE96CE13 | | svein_at_stillbilde.net ascii | | PGP Key: 0x58CD33B6 ribbon |System Admin | svein-listmail_at_stillbilde.net Campaign|stillbilde.net | PGP Key: 0x22D494A4 +-------------------+------------------------------- |msn messenger: | Mobile Phone: +47 907 03 575 |svein_at_jernhuset.no | RIPE handle: SS16503-RIPE --------+-------------------+------------------------------- If you really are in a hurry, mail me at svein-mobile_at_stillbilde.net This mailbox goes directly to my cellphone and is checked even when I'm not in front of my computer. ------------------------------------------------------------ Picture Gallery: https://gallery.stillbilde.net/v/svein/ ------------------------------------------------------------
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