Forwarding a discussion we had with QLogic for information. ----- Forwarded message from Chad Dupuis <chad.dup...@qlogic.com> -----
> From: Chad Dupuis <chad.dup...@qlogic.com> > To: Paul Elliott <paul.elli...@ynic.york.ac.uk> > CC: Mark Hymers <mark.hym...@ynic.york.ac.uk>, > Andrew Vasquez <andrew.vasq...@qlogic.com> > Subject: RE: Broken qla2xxx in Debian Squeeze under load > Accept-Language: en-US > acceptlanguage: en-US > X-OriginatorOrg: qlogic.com > > Hi Paul, > > We looked through the bug report and the UNDERRUN messages from our driver > are actually benign. The messages simply mean that we didn't receive as much > information as we expected for certain SCSI commands. In the case of the > messages from the bug report, they were INQUIRY and MAINTENANCE IN SCSI > commands which are known to have large buffers to make sure that there is > enough room at the operating system side to hold all the response > information. We actually removed these messages in newer kernels so as not > to confuse people. > > I looked at the rest of the bug report and there wasn't anything directly > relating the issue to the qla2xxx driver from the information provided. The > OOPS messages actually point to the ext4 driver so the issue may be there. > > --Chad > > -----Original Message----- > From: Paul Elliott [mailto:paul.elli...@ynic.york.ac.uk] > Sent: Thursday, August 18, 2011 6:34 AM > To: Linux Driver > Cc: Mark Hymers > Subject: Broken qla2xxx in Debian Squeeze under load > > Hello, > > We have recently invested in a new FC storage array to replace our existing > infrastructure. We use HP servers/brocade switches and QLogic HBAs throughout. > > Unfortunately we have started to experience kernel BUGs and hard hangs when > using the QLogic driver present in Debian Squeeze under very heavy load. > We've reported the issue to the Debian bug tracker[1] but progress so far has > been slow. The problem does *not* exist in later kernels and so we would like > to track down the specific bug that affects the squeeze > 2.6.32 kernel so that we can have the fix backported. > > Please could you take a moment to have a look at our bug report? I'm hoping > it's something obvious as the issue is already fixed in later kernels.. > > Thanks. > > [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=637085 > > -- > Paul Elliott, UNIX Systems Administrator York Neuroimaging Centre, University > of York > > > > This message and any attached documents contain information from QLogic > Corporation or its wholly-owned subsidiaries that may be confidential. If you > are not the intended recipient, you may not read, copy, distribute, or use > this information. If you have received this transmission in error, please > notify the sender immediately by reply e-mail and then delete this message. > ----- End forwarded message ----- -- Mark Hymers York Neuroimaging Centre -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
