On Wed, Jun 10, 2009 at 01:51:13PM +0200, Mike Hommey wrote:
> On Wed, Jun 10, 2009 at 12:09:25PM +0100, Tony Hoyle wrote:
> > Mike Hommey wrote:
> >> Hi Tony,
> >>
> >> On Wed, Jun 10, 2009 at 03:59:52AM +0100, Tony Hoyle wrote:
> >>> Package: vmfs-tools Version: 0.1.1-1 Severity: important
> >>>
> >>> On powerpc, any file over 2MB returns essentially random data.
> >>> This is testable by running md5sum across any file larger than this
> >>> - it comes up with different results each time.
> >>>
> >>> The same package installed on amd64 appears to behave correctly, so
> >>> this is a platform specific issue, possibly due to endinness.
> >>
> >> Does this happen with debugvmfs of vmfs-fuse ? I can't reproduce with
> >>  debugvmfs on ppc.
> >>
> > Here's the output I'm getting from a simple ms5sum:
> >
> > # md5sum sol-10-u6-ga1-x86-dvd.iso sol-10-u6-ga1-x86-dvd.iso
> > sol-10-u6-ga1-x86-dvd.iso
> > 7ac54248f85cd22764dcbd4c503e81ea  sol-10-u6-ga1-x86-dvd.iso
> > 20a9814af68cdf2cc1749fdf540437f5  sol-10-u6-ga1-x86-dvd.iso
> > b5134e4d505a5cd369912349610895da  sol-10-u6-ga1-x86-dvd.iso
> >
> > None of these are correct!
> >
> > debugvmfs also does not work:
> >
> > # debugvmfs /dev/sdc1 cat sol-10-u6-ga1-x86-dvd.iso >/tmp/sol.iso
> > VMFS: i/o spanned over several extents is unsupported
> > VMFS: i/o spanned over several extents is unsupported
> > VMFS: i/o spanned over several extents is unsupported
> > ...
> >
> > repeated about 1000 times
> >
> > Presumably the driver is not handling this condition and silently
> > corrupting the files.
> 
> Actually, you shouldn't even get this message given that you only have
> one extent. Can you provide the output for the following commands:
> debugvmfs /dev/sdc1 show_volume
> debugvmfs /dev/sdc1 show_fs

And debugvmfs /dev/sdc1 show_file_blocks /sol-10-u6-ga1-x86-dvd.iso, too.

Thanks

Mike



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