VIA 6420 RAID 0 problem

Seán C. Farley sean-freebsd at
Tue Nov 22 03:28:07 GMT 2005

On Tue, 22 Nov 2005, Marcin Simonides wrote:

> I have (had?) two issues, perhaps connected:
> (I posted a question to freebsd-questions about it some time ago. It
> contains some additional information: 


> The other, perhaps connected with this, issue is that I lost an
> extended partition while creating FreeBSD partition. It had happened
> before I started trying to fix the size problem described above.
> After slicing the newly created RAID 0 array with sysinstall and
> installing Windows, formatting NTFS and FAT slices (with Windows) I
> created BSD partitions on the first slice and lost the extended
> partition (slice). (a more detailed description of what I did is in
> the original posting to freebsd-questions).
> Today, after the change in kernel, I have removed FreeBSD partitions
> from the first slice and recreated them (with some differences).
> Nothing wrong happened.
> Could this be connected with the bug in VIA ata raid driver? Or maybe
> it was just a coincidence and/or was entirely my fault?

With the partition corruption (all of them) in a slice I reported[1] to
stable@ with the same controller, I think I smell a bug.  I do not know
if it is a VIA hardware bug or a bug in the driver.

sean-freebsd at

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