-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 hello james, James Bottomley wrote: > On Mon, 2008-04-07 at 16:22 +0200, Raoul Bhatia [IPAX] wrote: >> is there any sens in adding more debug output to sas_scsi_recover_host >> or sas_eh_handle_sas_errors? >> >> e.g. put out SAS_ADDR(task->dev->sas_addr) so that we know whether >> the error is always occuring on one phy/port/etc. ? >> >> the reason for doing this is basically my problems with the aic94xx >> driver, outlined in http://marc.info/?t=120603924200004. > > Probably not really ... it looks like a standard protocol error thrown > by a Seagate driver, as I said. the only information from seagate was: you have the latest firmware, please verify with a different controller. unfortunatly, until now i haven't been able to test with another disk and/or controller. > Did reducing the queue depth and increasing the retries have any > mitigating effect at all? mhm, i cannot say for sure as i played a lot with different sequencer version (which i directly got from adaptec). but as far as i can tell it did not have a big impact and the errors usually start to appear within 3-6 minutes. during my last test (second test with kernel 2.6.20-rc8, default queue depth) it took 22 minutes, but this happens very seldom. > The correct fix, which is to handle the REQ_TASK_ABORT on the fly is > still in the works. ok, do you have any eta for this? what about luben's comment in the previous thread? someone from adaptec took a look into this issue. i am currently asking whether i am allowed forward the conversation to you (or any other kernel developer who is interested). the discussion was basically about a pci-bus vs sas-bus (realtime-bus) issue. cheers, raoul - -- ____________________________________________________________________ DI (FH) Raoul Bhatia M.Sc. email. r.bhatia@xxxxxxx Technischer Leiter IPAX - Aloy Bhatia Hava OEG web. http://www.ipax.at Barawitzkagasse 10/2/2/11 email. office@xxxxxxx 1190 Wien tel. +43 1 3670030 FN 277995t HG Wien fax. +43 1 3670030 15 ____________________________________________________________________ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFH+jq6EaTXmVQ/cvsRAnKUAJ9ONuV1Lak/fERAUKhg5fthiAOZ3gCfWsnN huvPOsvdov+zKVTyj5jj7pc= =l6F2 -----END PGP SIGNATURE----- -- 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
