https://bugzilla.kernel.org/show_bug.cgi?id=14831 --- Comment #17 from Brian Sullivan <bexamous@xxxxxxxxx> 2010-05-04 09:15:45 --- No way, issue is fixed! After waiting for months I lose hope and order a mpt2sas controller. The next day issue is fixed. Argh! lol :) Without patch, running hddtemp in loop on 15 drives would last maybe 5-10 seconds before controller would crap out. With patch its been going for at least 20 minutes now without issue. I put a load on the controller too (~600MB/sec reads total) & still stable. I'll let this go overnight but really, this issue is fixed for me. On Mon, May 3, 2010 at 10:16 PM, <bugzilla-daemon@xxxxxxxxxxxxxxxxxxx>wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=14831 > > > > > > --- Comment #16 from kdesai <kashyap.desai@xxxxxxx> 2010-05-04 05:16:28 > --- > (In reply to comment #15) > > Take a look at my diagnosis here: > > http://lkml.org/lkml/2010/4/26/335 > > > > It includes a rough-draft patch. I'd be very interested in hearing > reports of > > whether this fixes this smartctl issue in others' environments as it has > in > > mine. > I am doing my analysis and meanwhile also in touch with our Firmware folks > to > understand this issue. Using Ryan's diagnosis tool I am able to see LSI > controller is not able to DMA for particular alignment. I will update this > ASAP. > Thanks, Kashyap > > > > The reason I haven't proposed it as a real patch is that there's probably > a > > better location for that code. Where I have it, it'll apply to every > SCSI host > > using the MPT Fusion framework, and if it's a hardware bug, perhaps we > want it > > to apply only to this specific LSI 1068 controller. > > > > That said, I expect most requests hitting the device are already > well-aligned, > > so this wouldn't affect many requests even if it did apply to a > > broader-than-necessary collection of hardware. > > -- > Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email > ------- You are receiving this mail because: ------- > You are on the CC list for the bug. > -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
