I'm seeing some resets on my ad0 drive. I tend to cvsup my kernel,
recompile
and reboot so the only clue I have to the version I'm running is the date
that
the kernel was compiled as it shows up when I rebooted.
I stripped out a few reboots if there was no change in kernel rev or errors.
It isn't necessarily a heavy-use CPU all the time, but I've obviously
done
some full compiles (make buildworld, plus the kernels).
Initially I was thinking that this must have crept in around 8/23, but looking
back through my logs I see another write timeout on 8/19.
All the hits today took place during lots of I/O (mostly buildworld with some
of the larger ports like X). I'll do some more I/O and see if I can find
anything that triggers it reliably.
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-[grep -e 'ad0:' -e 'done$'
-e 'kernel: FreeBSD']
Jul 22 21:24:28 pandora /kernel: FreeBSD 4.8-RELEASE #0: Thu Apr 3 10:53:38 GMT
2003
Jul 22 21:24:28 pandora /kernel: ad0: DMA limited to UDMA33, non-ATA66 cable or
device
Jul 22 21:24:28 pandora /kernel: ad0: 9736MB <Maxtor 91020U3>
[19783/16/63] at ata0-master UDMA33
...
Aug 18 21:34:22 pandora /kernel: FreeBSD 4.8-STABLE #0: Mon Aug 18 21:20:49 PDT
2003
Aug 18 21:34:22 pandora /kernel: ad0: DMA limited to UDMA33, non-ATA66 cable or
device
Aug 18 21:34:22 pandora /kernel: ad0: 9736MB <Maxtor 91020U3>
[19783/16/63] at ata0-master UDMA33
Aug 19 20:22:19 pandora /kernel: ad0: WRITE command timeout tag=0 serv=0 -
resetting
Aug 19 20:22:19 pandora /kernel: ata0: resetting devices .. ad0: DMA limited to
UDMA33, non-ATA66 cable or device
Aug 19 20:22:19 pandora /kernel: done
...
Aug 23 14:05:59 pandora /kernel: FreeBSD 4.8-STABLE #1: Sat Aug 23 13:53:24 PDT
2003
Aug 23 14:05:59 pandora /kernel: ad0: DMA limited to UDMA33, non-ATA66 cable or
device
Aug 23 14:05:59 pandora /kernel: ad0: 9736MB <Maxtor 91020U3>
[19783/16/63] at ata0-master UDMA33
...
Aug 23 20:03:06 pandora /kernel: FreeBSD 4.8-STABLE #1: Sat Aug 23 13:53:24 PDT
2003
Aug 23 20:03:06 pandora /kernel: ad0: DMA limited to UDMA33, non-ATA66 cable or
device
Aug 23 20:03:06 pandora /kernel: ad0: 9736MB <Maxtor 91020U3>
[19783/16/63] at ata0-master UDMA33
Aug 25 07:54:51 pandora /kernel: ad0: WRITE command timeout tag=0 serv=0 -
resetting
Aug 25 07:54:52 pandora /kernel: ata0: resetting devices .. ad0: DMA limited to
UDMA33, non-ATA66 cable or device
Aug 25 07:54:52 pandora /kernel: done
Aug 25 09:03:03 pandora /kernel: ad0: WRITE command timeout tag=0 serv=0 -
resetting
Aug 25 09:03:03 pandora /kernel: ata0: resetting devices .. ad0: DMA limited to
UDMA33, non-ATA66 cable or device
Aug 25 09:03:03 pandora /kernel: done
Aug 25 09:03:33 pandora /kernel: ad0: WRITE command timeout tag=0 serv=0 -
resetting
Aug 25 09:03:34 pandora /kernel: ata0: resetting devices .. ad0: DMA limited to
UDMA33, non-ATA66 cable or device
Aug 25 09:03:34 pandora /kernel: done
Aug 25 09:05:24 pandora /kernel: ad0: WRITE command timeout tag=0 serv=0 -
resetting
Aug 25 09:05:24 pandora /kernel: ata0: resetting devices .. ad0: DMA limited to
UDMA33, non-ATA66 cable or device
Aug 25 09:05:24 pandora /kernel: done
Aug 25 09:05:47 pandora /kernel: ad0: WRITE command timeout tag=0 serv=0 -
resetting
Aug 25 09:05:47 pandora /kernel: ata0: resetting devices .. ad0: DMA limited to
UDMA33, non-ATA66 cable or device
Aug 25 09:05:47 pandora /kernel: done
Aug 25 09:09:07 pandora /kernel: ad0: WRITE command timeout tag=0 serv=0 -
resetting
Aug 25 09:09:07 pandora /kernel: ata0: resetting devices .. ad0: DMA limited to
UDMA33, non-ATA66 cable or device
Aug 25 09:09:07 pandora /kernel: done
Aug 25 14:16:02 pandora /kernel: ad0: WRITE command timeout tag=0 serv=0 -
resetting
Aug 25 14:16:02 pandora /kernel: ata0: resetting devices .. ad0: DMA limited to
UDMA33, non-ATA66 cable or device
Aug 25 14:16:04 pandora /kernel: done
Aug 25 17:40:44 pandora /kernel: FreeBSD 4.9-PRERELEASE #2: Mon Aug 25 17:34:08
PDT 2003
Aug 25 17:40:44 pandora /kernel: ad0: DMA limited to UDMA33, non-ATA66 cable or
device
Aug 25 17:40:44 pandora /kernel: ad0: 9736MB <Maxtor 91020U3>
[19783/16/63] at ata0-master UDMA33