Leonid, Ignore the "A4" for a moment; it probably doesn't affect the bug you're chasing anyways. The previous adp94xx driver uses V32 which is a more than a step up from what you're running now. If this improves your situation (less REQ_TASK_ABORTs) I'll see about merging the firmware bits (it's stuck in a header file) into the RHEL-5.1 version of the aic94xx driver and providing a patch for you, it's not hard. http://www.adaptec.com/en-US/speed/sas/linux/adp94xx-1_0_8-12_src_tgz.ht m Peter > -----Original Message----- > From: Leonid Kalmankin [mailto:lvk@xxxxxxxxxxxxx] > Sent: Thursday, April 17, 2008 11:09 AM > To: Petrakis, Peter > Cc: linux-scsi@xxxxxxxxxxxxxxx > Subject: RE: aic94xx + ST3146855SS still failing under heavy load > > Hi Peter! > > On Wed, 2008-04-16 at 13:34 -0400, Petrakis, Peter wrote: > > Hi Raoul, > > > > We use the same disks with the same firmware here at Stratus and have > > never experienced the issue you're observing. Maybe it's due to the fact > > that the hardware raid on the AIC-9410W is enabled? If you're using md > > No, disabling hardware raid didn't help, got same errors. > > > then there's no reason to keep it on. Our configurations as almost > > identical except for: > > > > - hardware RAID disabled > > - directly attached > > - md level 1 > > - seq: V32A4 > > where did you get that? the lastest i have is V30 > > > - bios/firmware 2.0-2 1822/1021 > > > > The bios and firmware revs may be specific to our implementation since > > the SAS chip is glued to our PCI-X riser. Are your disks directly > > attached or are you using a SAS expander? > > > > Peter > > > > > -----Original Message----- > > > From: linux-scsi-owner@xxxxxxxxxxxxxxx [mailto:linux-scsi- > > > owner@xxxxxxxxxxxxxxx] On Behalf Of Raoul Bhatia [IPAX] > > > Sent: Wednesday, April 16, 2008 12:47 PM > > > To: Leonid Kalmankin > > > Cc: linux-scsi@xxxxxxxxxxxxxxx > > > Subject: Re: aic94xx + ST3146855SS still failing under heavy load > > > > > > hi, > > > > > > some others, like me, are struggeling with this problem. > > > afaik, james bottomley (or someone else?) is working on a fix, > > > but it will take some more time. > > > > > > please see [1] and [2]. > > > > > > btw. i asked seagate and adaptec and both did not come up with a > > decent > > > solution. seagate asked me to verify this with a different controller > > > and said that they know of no issue and adaptec gave me a new > > sequencer > > > firmware - so at least the server is still responding properly - and > > > told me that all the fixes went into the recent 2.6.25rc6+ kernel. > > > > > > cheers, > > > raoul > > > [1] http://marc.info/?t=120603924200004 > > > [2] http://marc.info/?t=120757821700007 > > > > > > Leonid Kalmankin wrote: > > > > Hello! > > > > > > > > We have a system with: > > > > > > > > vanilla 2.6.25-rc8 (2.6.23, 2.6.24 have the same behaviour) > > > > > > > > Adaptec AIC-9410W SAS (Razor ASIC RAID) (rev 09) > > > > aic94xx: Found sequencer Firmware version 1.1 (V30) > > > > (Firmware version 1.1 (V17/10c6) makes no difference) > > > > scsi 2:0:0:0: Direct-Access SEAGATE ST3146855SS 0002 PQ: 0 ANSI: 5 > -- 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