Re: GEOM error

On Sun, 20 Nov 2005, Christian Brueffer wrote:

> On Sat, Nov 19, 2005 at 04:22:11PM -0800, Doug White wrote:
> > On Tue, 15 Nov 2005, Ulf Kieber wrote:
> >
> > > Re,
> > >
> > > on a 6.0-RELEASE I receive the following error since I tried restoring
> > > a large dump
> > >
> > > Nov 14 12:30:11 nexus kernel: g_vfs_done():da1s1d.bde[WRITE(offset=72350695424, length=131072)]error = 1
> > >
> > > Besides that, no other errors are logged, especially no SCSI errors.
> > > The problem persists even after the restore has completed.
> >
> > errno 1 is EPERM ("Operation not permitted") and is generally returned if
> > you attempt to write somewhere you're not allowed to. Considering the
> > offset is near the end of the disk, GBDE may be trying to prevent you from
> > overwriting metadata blocks at the end of the partition. How or why
> > restore(8) would be writing there I'm not sure.
> >
> > A SCSI error would return as errno 5 (EIO, "Input/output error").
> >
>
> I get the same messages with my external USB drive from time to time
> (interestingly also GBDE encrypted).
>
> Nov 20 02:03:30 haakonia kernel: g_vfs_done():da3s2c.bde[WRITE(offset=383341297664, length=65536)]error = 1
>
> The message repeats every 30 seconds and trying to unmount the file
> system fails.  When I try to shut the system down, the message appears
> n > 50 times followed by a panic.
>
> Is it possible that the system tries to write on a bad sector and
> consequently fails (provided that the on-disk sector remapping also
> fails)?

You would get a SCSI error in that case since usb storage is attached
through CAM.

-- 
Doug White                    |  FreeBSD: The Power to Serve
dwhite_at_gumbysoft.com          |  www.FreeBSD.org