[vox-tech] kernel oops resulting in hung processes.

[Ryan Castellucci]

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On Wednesday 12 February 2003 10:54 am, msimons@moria.simons-clan.com wro=
te:
> On Wed, Feb 12, 2003 at 10:35:06AM -0800, Ryan Castellucci wrote:
> > Feb 12 04:22:44 windy kernel: sda : READ CAPACITY failed.
> > Feb 12 04:22:44 windy kernel: sda : status =3D 1, message =3D 00, hos=
t =3D 0,
> > driver =3D 08 Feb 12 04:22:44 windy kernel: Info fld=3D0xa00 (nonstd)=
,
> > Current sd00:00: sense key Not Ready Feb 12 04:22:44 windy kernel: sd=
a :
> > block size assumed to be 512 bytes, disk size 1GB. Feb 12 04:22:44 wi=
ndy
> > kernel:  /dev/scsi/host1/bus0/target0/lun0: I/O error: dev 08:00, sec=
tor
> > 0 Feb 12 04:22:44 windy kernel:  I/O error: dev 08:00, sector 0
> > Feb 12 04:22:44 windy kernel: Unable to handle kernel paging request =
at
> > virtual address 3a2061a8 Feb 12 04:22:44 windy kernel:  printing eip:
> >
> > sda is sometimes a USB device, was not plugged in at the time.
>
>   The OOPS shouldn't happen... in a perfect world the driver that
> caused that wouldn't have.
>
> > Anyone know where things went wrong here?
>
>   I've seen bizarre problems when removable devices are detached before
> they are unmounted.

It was unmmounted before I detached it.

> > This error resulted in processes getting hung in the 'D' state (as
> > reported by top)
>
>   Where the hung processes trying to use the filesystem that was
> the removable device?  The kernel may have just been holding the
> processes while waiting for the device to return...

No.

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