Yes, we are still looking into it. From the trace, the sequencer stuck on DMA transferring data. Most likely the V28 sequencer introduces new problem. Any way, we are going to find out the root cause. Thanks! Gilbert -----Original Message----- From: Darrick J. Wong [mailto:djwong@xxxxxxxxxx] Sent: Thursday, February 08, 2007 3:32 PM To: Wu, Gilbert Cc: James Bottomley; linux-scsi@xxxxxxxxxxxxxxx; Alexis Bruemmer Subject: Re: [PATCH] scsi: Update Aic94xx SAS/SATA Linux open source devicedriver for new sequence firmware. Wu, Gilbert wrote: > Hi Darrick, > > We can duplicate the problem here. The aic94xx with V28 passed IO > testing overnight if we apply IO directly to /dev/sd?. But it fails > very quickly when we create a partition and format it as ext3. The V17 > sequencer works fine with both cases. We are looking into it and find > the root cause ASAP. This may be fairly self evident by now, but it looks like the sequencer for the link (LSEQ, I think?) is somehow locking up, which explains why the scsi_cmnds start timing out and after that all commands (stp, phy control, etc) time out as well. The other drives continue operating normally, so I don't think the central sequencer isn't borked up. Then again, you guys at Adaptec have the sequencer source code works and I don't, so I can't do much more than make vague guesses. Oh well :( --D - 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
