Bug 282351 – [PATCH] Fix memory leak of dma_alloc_coherent() on x86_64

Bugzilla will be upgraded to version 5.0. The upgrade date is tentatively scheduled for 2 December 2018, pending final testing and feedback.

Bug 282351 - [PATCH] Fix memory leak of dma_alloc_coherent() on x86_64

Summary:	[PATCH] Fix memory leak of dma_alloc_coherent() on x86_64

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 4
Classification:	Red Hat
Component:	kernel (Show other bugs)
Sub Component:
Version:	4.5
Hardware:	x86_64 Linux

Priority	urgent Severity urgent
Target Milestone:	---
Target Release:	---
Assigned To:	Vitaly Mayatskikh
QA Contact:	Martin Jenner
Docs Contact:

URL:
Whiteboard:
Keywords:	ZStream

Depends On:	243657
Blocks:
	Show dependency tree / graph

Reported:	2007-09-07 09:22 EDT by Ludek Smid
Modified:	2018-10-19 15:53 EDT (History)
CC List:	4 users (show)

See Also:
Fixed In Version:	RHSA-2007-0939
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2007-11-01 09:31:18 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
proposed patch (408 bytes, patch) 2007-09-08 17:44 EDT, Vitaly Mayatskikh	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2007:0939	normal	SHIPPED_LIVE	Important: kernel security update	2008-01-07 13:58:13 EST

Groups: None (edit)

Description Ludek Smid 2007-09-07 09:22:26 EDT

This bug has been copied from bug #X and has been proposed to be backported to
4.5 z-stream (EUS).

Comment 2 Vitaly Mayatskikh 2007-09-08 17:44:25 EDT

Created attachment 190871 [details]
proposed patch

Comment 5 Don Howard 2007-09-21 18:37:26 EDT

A patch for this issue has been included in build 2.6.9-55.0.7.

Comment 6 Masaki MAENO 2007-10-15 20:55:32 EDT

I also hoped it. 
However, I confirmed that memoryleak-fix-patch was not included in
"arch/x86_64/kernel/pci-gart.c" on 2.6.9-55.0.9.EL.
Please fix this problem by the proposed patch.

Comment 7 Masaki MAENO 2007-10-15 21:25:41 EDT

But, the ChangeLog existed in 2.6.9-55.0.9.EL.
>>> - fix memory leak of dma_alloc_coherent() on x86_64 (Prarit Bhargava) [282351]

Anyway, please confirm it.

Comment 8 Vitaly Mayatskikh 2007-10-16 03:38:18 EDT

dma_alloc_coherent() was fixed in 2.6.9-55.0.7, but all patches from 55.0.7 were
reverted in build 55.0.9 and restored in 55.0.10 due to internal reasons. Please
take a look to changelog one more time.

Comment 9 Masaki MAENO 2007-10-16 20:09:54 EDT

I expect it in the following errata release.

Comment 11 Zhang Kexin 2007-10-31 09:42:15 EDT

got no right hardware do the test, (it needs a system that has a device that
calls dma_alloc_coherent,SB600 system should be OK), so just do code review.

Comment 13 errata-xmlrpc 2007-11-01 09:31:18 EDT

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-2007-0939.html

Note You need to log in before you can comment on or make changes to this bug.