Red Hat Bugzilla – Bug 434741
AMD SB700/SB800 SATA support 64bit DMA
Last modified: 2009-06-19 22:25:08 EDT
Description of problem: SB700 SATA controller can support 64 bit DMA, the previous git commit badc2341579511a247f5993865aa68379e283c5c was added with careless reference to SB600, which should be modified by this patch. This patch has been accepted by kernel.org, the git commit is: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux- 2.6.git;a=commit;h=e39fc8c9fd0bb6f4018186801e4a53a5eccaaf70 Can you add this patch to RHEL5.2 before its final release? If it is too late to add it to RHEL5.2, you can add it to RHEL5.3 Thanks
Created attachment 295770 [details] SB700/SB800 SATA support 64bit DMA
Shane, What problem does this patch fix? What happens if we do not include this patch?
We are only be able to benefit from 4G system memory without this patch, even if there is more than 4G physical memory on the board with SB700.
Russ, Peter verbally okayed the inclusion of this patch yesterday and I'll work on creating a patch for testing and submission. I've added the BZ to the R5.2 masterbug so I don't lose sight of it's existance. Bhavana
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release.
Created attachment 296252 [details] RHEL patch: 64-bit DMA support patch RPMs built on brew and uploaded to AMD for testing.
AMD chipset QA test results using RHEL brew build List test item as below and result at the right side. 4G/6G memory boot ---------------------- PASS AHCI/Native IDE/Combine Mode -------- PASS Hdd performance test -------------------- PASS Bonnie++ on hdd ----------------------------- PASS Burnintest for 5h ------------------------------ PASS Config: CPU: Deerhound AM2r2 B0 Node4M uPGA Organic 1800MHz/1600MHz/2048K/2MB/1.2V DT 4C 89W EVT Motherboard: AMD Shiner RS780 A12/SB700 A12 Rev.04 Memory: Kingston 1024MB 800MT/s DDR2 UDIMM(2048M for 6G test) SATA HDD: Western Digital Caviar SE WD1600AAJS SATA/300 160GB Submitted to RHML on Feb 29
Submitted to RHML on 2/29, received 2 ACKs.
Submitted two upstream commits to address SB600 32-bit and sect255 issue: a878539ef994787c447a98c2e3ba0fe3dad984ec 4cde32fc4b32e96a99063af3183acdfd54c563f0
1. Can you also upload the testing patch to this BZ? 2. Has the patch in comment #6 been added into RHEL5.2 kernel? 3. Do you mean you only add these two upstream commits to SB600? While SB700 is not impacted?
The testing kernel with those two upstream commits to address SB600 32-bit and sect255 issue: a878539ef994787c447a98c2e3ba0fe3dad984ec 4cde32fc4b32e96a99063af3183acdfd54c563f0 works well on SB600 boards in our QA's test. FYI.
in kernel-2.6.18-89.el5 You can download this test kernel from http://people.redhat.com/dzickus/el5
Greetings Red Hat Partner, A fix for this issue should be included in the latest packages contained in RHEL5.2-Snapshot6--available now on partners.redhat.com. We are nearing GA for 5.2 so please test and confirm that your issue is fixed ASAP. After you (Red Hat Partner) have verified that this issue has been addressed, please perform the following: 1) Change the *status* of this bug to VERIFIED. 2) Add *keyword* of PartnerVerified (leaving the existing keywords unmodified) If this issue is not fixed, please add a comment describing the most recent symptoms of the problem you are having and change the status of the bug to ASSIGNED. If you are receiving this message in Issue Tracker, please reply with a message to Issue Tracker about your results and I will update bugzilla for you. If you need assistance accessing ftp://partners.redhat.com, please contact your Partner Manager. Thank you
Greetings Red Hat Partner, A fix for this issue should be included in the latest packages contained in RHEL5.2-Snapshot7--available now on partners.redhat.com. We are nearing GA for 5.2--this is the last opportunity to test and confirm that your issue is fixed. After you (Red Hat Partner) have verified that this issue has been addressed, please perform the following: 1) Change the *status* of this bug to VERIFIED. 2) Add *keyword* of PartnerVerified (leaving the existing keywords unmodified) If this issue is not fixed, please add a comment describing the most recent symptoms of the problem you are having and change the status of the bug to ASSIGNED. If you are receiving this message in Issue Tracker, please reply with a message to Issue Tracker about your results and I will update bugzilla for you. If you need assistance accessing ftp://partners.redhat.com, please contact your Partner Manager. Thank you
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/RHBA-2008-0314.html