Re: sata_mv important note

[Mark Lord <lkml@rtr.ca>]

Sebastian Kuzminsky wrote:
>
> I'm using:
> 
> 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.
> 
> The problem goes away and everything works if I turn on all the debugging
> options in the kernel config (but I dont get any debug output from
> the kernel).
> 
> Arkadiusz, if possible, please see if you can replicate my hang.

I will try and reproduce and fix this issue when my Marvell RAID system
arrives here in a week or two.

Cheers