Messages in this thread | | | From | "Diamon" <> | Subject | Re: Hard lock with Raid 0.90 on buslogic flashpoint SCSI card | Date | Mon, 9 Oct 2000 02:35:18 -0500 |
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----- Original Message ----- From: Jakob Østergaard <jakob@unthought.net> To: Diamon <diamon@io.com> Cc: <linux-kernel@vger.kernel.org> Sent: Sunday, October 08, 2000 10:51 AM Subject: Re: Hard lock with Raid 0.90 on buslogic flashpoint SCSI card
> On Sat, Oct 07, 2000 at 09:00:15PM -0500, Diamon wrote: > > > > I hope this is going to the right list/group/etc, as I got this email > > address from someone on #kernelnewbies... > > linux-raid is better for RAID problems.
Ok, I'll refer to them for raid in the future...
> > > > Attempting to mkraid /dev/md0 a raid5 array using a Buslogic Flashpoint > > fast SCSI PCI card will always hard lock the system at exactly 2% complete. > > There is no oops or log, and it's a total lockup. I can't even switch > > virtual terminals when it locks. Using an AHA-2940UW in place of the > > buslogic works perfectly. > > Which tells us it's not a bug in the RAID layer.
Good, that makes life easier, and that's what I thought too. I'll swing it past the folks at linux-raid in case it's a feaky buffer thing or something.
> >
{SNIP!}
> > > > I bet you can make your system lock up with the buslogic card just by doing > normal non-RAID disk I/O as well. Try copying files between the disks, or > something else that's disk intensive.
No luck locking it up with some Bonnie testing, and dd if=/dev/zero of=/dev/sd<whatever> to all drives in the array simultaneously did not lock up either, nor did Bonnie on the non-raid drive while doing the dd to the 3 in the raid.
> I don't know about special issues with the buslogic card and the kernel you're > running. It could be a driver problem, a card problem, or perhaps a wiring > problem (this can sometimes kill the kernel because some drivers error-handling > suck) or a disk problem (if the reconstruction halts at the exact same place > every time this could be likely).
I checked the media on all drives, no errors visible to Adaptec's bios verify tests, and nothing on the drive's glist. If I run 'top' while it's rebuilding, it gets farther before locking, but only 3-8% along vs 2% without top. I'll try swapping out the cable and the card. Got extras of those on hand.
> -- > ................................................................ > : jakob@unthought.net : And I see the elder races, : > :.........................: putrid forms of man : > : Jakob Østergaard : See him rise and claim the earth, : > : OZ9ABN : his downfall is at hand. : > :.........................:............{Konkhra}...............:
Please reply to me directly (and on the list if it's useful to do so) as I'm not in the mailing list.
Thanks for your help! Diamon
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