From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5) Gecko/20041111 Firefox/1.0 (Debian package 1.0-2) Description of problem: The DVD-ROM shipping in the rx8620 (among other boxes) has a bug which prevents domain validation from working correctly (error messages below). We've done some debugging and the drive is definitely breaking the spec. We're working on a solution to blacklist this drive now. This is not a Red Hat specific bug. How reproducible: Always Steps to Reproduce: 1. Boot on an rx8620 with a CD in the drive. Additional info: scsi(1:0:2:0): Domain Validation detected failure, dropping back scsi(1:0:2:0): Domain Validation detected failure, dropping back scsi(1:0:2:0): Domain Validation detected failure, dropping back scsi(1:0:2:0): Domain Validation detected failure, dropping back scsi(1:0:2:0): Domain Validation detected failure, dropping back scsi(1:0:2:0): Domain Validation detected failure, dropping back scsi(1:0:2:0): Domain Validation Failure, dropping back to Asynchronous
Adding a URL for the discussion of my proposed patch on the linux-scsi list
James has accepted the latest patch in that thread: http://marc.theaimsgroup.com/?l=linux-scsi&m=110236673610371&w=2
Patch is merged into Linus' tree: http://linux.bkbits.net:8080/linux-2.6/cset@41b5de19WErWz4YA4iSYsanfLMtpzg
So, when may we expect to see this in RHEL4?
(from Matthew Wilcox) The patch was taken into Linus' tree over 2 months ago and has seen no problem reports.. Effectively, it blacklists all drives that don't support PPR from attemption the write portion of DV. James Bottomley has signed off on it. This is a small, low-risk change. The set of devices affected by this are: * those that do not claim to support PPR * AND claim to have write buffers This is *supposed* to be the null set. HP's DVD drive is the only device I've heard of that claims write buffers without setting PPR * AND are attached to a controller driven by smb53c8xx_2, 53c700 or ncr53c8xx These are the only drivers currently using this DV code.
Have encountered the problem with RHEL4 U1 Beta on a Superdome. So add that to the list of impacted platforms. I was really hoping htat this would have been patched in the RHEL4U1 Beta.
The patch looks fine to me and meets my approval, I'll forward for internal review/inclusion. It will probably make U2.
The patch has been included in the current U2 source base. Changing state to modified.
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, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2005-514.html