Bug 455813
Summary: | Under heavy memory usage dma_alloc_coherent does not return aligned address | ||
---|---|---|---|
Product: | Red Hat Enterprise Linux 5 | Reporter: | Prarit Bhargava <prarit> |
Component: | kernel | Assignee: | Prarit Bhargava <prarit> |
Status: | CLOSED ERRATA | QA Contact: | Martin Jenner <mjenner> |
Severity: | medium | Docs Contact: | |
Priority: | high | ||
Version: | 5.3 | CC: | dzickus, mgahagan, reich |
Target Milestone: | rc | ||
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2009-01-20 20:03:20 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Attachments: |
Description
Prarit Bhargava
2008-07-17 23:22:30 UTC
This work was based on the report from 298811. This allocation method is also broken in RHEL4. Created attachment 312088 [details]
RHEL5 fix for this issue
Initial rough patch.
Created attachment 312089 [details]
Upstream bug fix related to this issue
Sent to LKML & Jesse Barnes.
Created attachment 312135 [details]
Additional Upstream bug fix related to this issue
Patch in comment #4 sent to LKML and Jesse Barnes. Created attachment 312136 [details]
RHEL5 fix for this issue (with DMA short-circuit code and debug)
Created attachment 312164 [details]
RHEL5 fix for this issue
Links to upstream submits for this issue: http://marc.info/?l=linux-kernel&m=121664984730778&w=2 http://marc.info/?l=linux-kernel&m=121664984830791&w=2 P. Created attachment 312463 [details]
Upstream patch that fixes this issue
Submitted to LKML.
Patch upstream here: http://marc.info/?l=linux-kernel&m=121681201313560&w=2 P. This request was evaluated by Red Hat Product Management for inclusion, but this component is not scheduled to be updated in the current Red Hat Enterprise Linux release. If you would like this request to be reviewed for the next minor release, ask your support representative to set the next rhel-x.y flag to "?". Created attachment 313699 [details]
RHEL5 fix for this issue
Posted patch.
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. in kernel-2.6.18-110.el5 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 therefore 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-2009-0225.html |