Hmm.

"Asked and answered, counselor..."


On Mon, 30 Jul 2001, Kevin P. Neal wrote:

> Say, I just got nailed with this crash on my AXPpci33 (166 MHz). I
> swap to drives sd0 and sd1, and that I had just started a build of
> inn from pkgsrc. This is with a 1.5 kernel (which I have now replaced
> with a 1.5.1 kernel).
>
> My first guess would be that the drive failed reading block 13376
> (which would fall in the swap space partition) and the failure cascaded
> into a sudden reboot.
>
> Why would failing to swap in a process cause a panic, a machine check,
> and then a failure to dump?
>
> Another theory of mine is that the memory in this box is flakey. *shrug*
>
>
>
> sd1(siop1:2:0):  Check Condition on CDB: 0x08 00 34 40 10 00
>     SENSE KEY:  Media Error
>    INFO FIELD:  13376
>  COMMAND INFO:  8192 (0x2000)
>      ASC/ASCQ:  Scan Head Positioning Error
>
>
> fatal kernel trap:
>
>     trap entry = 0x3 (instruction fault)
>     a0         = 0x4
>     a1         = 0x1
>     a2         = 0x0
>     pc         = 0xfffffc000015f9c4
>     ra         = 0xfffffc000015f9c0
>     curproc    = 0xfffffc0000663900
>         pid = 143, comm = mount_mfs
>
> panic: trap
> syncing disks... done
>
> dumping to dev 8,1 offset 331363
> dump 32
> unexpected machine check:
>
>     mces    = 0x1
>     vector  = 0x670
>     param   = 0xfffffc0000006048
>     pc      = 0xfffffc00004e6ea8
>     ra      = 0xfffffc0000305ecc
>     curproc = 0xfffffc0000663900
>         pid = 143, comm = mount_mfs
>
> panic: machine check
>
> dumping to dev 8,1 offset 331363
> dump device not ready
>
> --
> Kevin P. Neal                                http://www.pobox.com/~kpn/
>            On the community of supercomputer fans:
> "But what we lack in size we make up for in eccentricity."
>   from Steve Gombosi, comp.sys.super, 31 Jul 2000 11:22:43 -0600
>