Red Hat Bugzilla – Bug 438214
[QLogic 5.2 bug] qla4xxx: Fix scsi completion, lun reset code
Last modified: 2008-05-21 11:12:12 EDT
Description of problem:
1. Remove extraneous code and fix scsi command completion code so that when the
HBA indicates that the completion status is good, check the iscsi transport
status prior to processing scsi status
2. Firmware requirement is to issue one marker iocb per task management command.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
The corresponding patch has already been posted to linux-scsi reflector
Created attachment 298561 [details]
qla4xxx: Fix scsi completion, lun reset code
Just making sure this is a RHEL 5.3 item... correct?
If this can go into 5.2 that would be great!
I think this should be assigned to Marcus, since the code is isolated to the
qla4xxx code, not anything Mike would be involved with.
Marcus - I know you're pretty hammered to get everything in - what's this priority?
At this point in the 5.2 schedule, the only fixes we can take are for data
corruption, system crashers, or serious regressions introduced in 5.2. Does this
fit that bill?
I corresponded with David S. earlier today. This is a serious issue where one of several status that
comprise the success or failure of an I/O was missed. In addition a required handshake " a marker" with
the HBA is not properly performed.
The problem with the status would be that a iSCSI Transport/Completions are not properly identified.
This issue would cause a data corruption, because the error would be missed.
Secondly the problem with the handshake would cause the device queue on the HBA to block, preventing
You can download this test kernel from http://people.redhat.com/dzickus/el5
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
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if the solution does not work for you.