Bug 12404

Summary:	Oops in 2.6.28-rc9 and -rc8 -- mtrr issues / e1000e
Product:	Platform Specific/Hardware	Reporter:	Rafael J. Wysocki (rjw)
Component:	x86-64	Assignee:	Jesse Brandeburg (jbrandeb)
Status:	RESOLVED CODE_FIX
Severity:	normal	CC:	jbrandeb
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.28-rc8	Subsystem:
Regression:	Yes	Bisected commit-id:
Bug Depends on:
Bug Blocks:	11808
Attachments:	unmap fixes for e1000e

Description Rafael J. Wysocki 2009-01-10 14:08:09 UTC

Subject    : Oops in 2.6.28-rc9 and -rc8 -- mtrr issues / e1000e
Submitter  : "Kernel" <kernel@bazarnic.net>
Date       : 2008-12-22 9:37
References : http://marc.info/?l=linux-kernel&m=122993873320150&w=4

This entry is being used for tracking a regression from 2.6.27.  Please don't
close it until the problem is fixed in the mainline.

Comment 1 Yinghai Lu 2009-01-14 13:45:54 UTC

can you post cat /proc/mtrr?

Comment 2 Jesse Brandeburg 2009-02-20 15:36:25 UTC

Created attachment 20319 [details]
unmap fixes for e1000e

Please original reporter or anyone else tracking this try this patch.  We have a similar one for the unmap issue for e1000.  They are both not doing map/unmap symmetrically for some transmit buffers.

Comment 3 Jesse Brandeburg 2009-04-28 19:26:04 UTC

was commited by linus on 20090403 in 
e1000: 37e73df8c3f19f4733c60ec53c104ff6f79ba467
       d20b606c99c7fd9f1b6c6ec43c877eaae827d169

and
e1000e: 1b7719c4559dc1522065d4cfd033f8bb8f969159
        8ddc951c73cbc317148c0b9973dde81eece57e4c

and:
igb: 65689fef7e484631e996541a6772706627b0991a

ixgb: fe52eeb82b746de441ed27c54ace940efe86bc9a
      
ixgbe: 44df32c592f5a626c9f2ed56642e939788022408

all was included in 2.6.30-rc1 (AFAIK)