Re: sata_mv important note

[Sebastian Kuzminsky <seb@highlab.com>]

Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> wrote:
> On 1/17/06, Sebastian Kuzminsky <seb@highlab.com> wrote:
> > 0000:02:01.0 IDE interface: Marvell Technology Group Ltd. MV88SX6081 8-port SATA II PCI-X Controller (rev 09)
> >
> > I'm running the stock 2.6.15 kernel & the in-kernel driver.  I have four
> > disks on this controller.  The controller and disks seem perfectly stable,
> > I've been running four parallel "badblocks -n" processes (one on each
> > disk) for almost 5 days now.  Using the disks as PVs in LVM works fine,
> > and building a RAID-6 out of them also works fine.
> >
> > But when I build a RAID-6 out of them, and use the array as a PV
> > for LVM, the system locks up within seconds (no errors, no sysrq,
> > no CapsLock-blinky, no network-pingy).  This behavior is perfectly
> > repeatable.
> 
> Have you tried using "nmi_watchdog=1" kernel parameter?

I just tried this and it hung again, with nothing in the logs or on
the console.

Pretty wierd.

I just had another hard lockup with sata_mv -> Raid-6, but without LVM.
This is new for me, first time I've seen it lock up without LVM.  I was
resyncing the raid array and running 'badblocks -svn' on it (/dev/md1)
at the same time, and it locked.

I'm going to shelve the Marvell 6081 controller for a while, and go buy
something else...


-- 
Sebastian Kuzminsky