Bug 13673

Summary:	HIGHMEM64G causes hang in PCI init on 32-bit x86
Product:	Platform Specific/Hardware	Reporter:	Rafael J. Wysocki (rjw)
Component:	i386	Assignee:	platform_i386
Status:	CLOSED CODE_FIX
Severity:	normal
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.31-rc1	Subsystem:
Regression:	Yes	Bisected commit-id:
Bug Depends on:
Bug Blocks:	13615

Description Rafael J. Wysocki 2009-06-29 14:14:51 UTC

Subject    : [BUG 2.6.31-rc1] HIGHMEM64G causes hang in PCI init on 32-bit x86
Submitter  : Mikael Pettersson <mikpe@it.uu.se>
Date       : 2009-06-26 15:59
References : http://marc.info/?l=linux-pci&m=124615181602643&w=4
Handled-By : "H. Peter Anvin" <hpa@zytor.com>

This entry is being used for tracking a regression from 2.6.29.  Please don't
close it until the problem is fixed in the mainline.

Caused by:

commit 95ee14e4379c5e19c0897c872350570402014742
Author: H. Peter Anvin <hpa@zytor.com>
Date:   Tue Jun 9 18:20:39 2009 -0700

    x86: cap iomem_resource to addressable physical memory

First-Bad-Commit : 95ee14e4379c5e19c0897c872350570402014742
Notify-Also : Grant Grundler <grundler@parisc-linux.org>
Notify-Also : Matthew Wilcox <matthew@wil.cx>

Comment 1 Rafael J. Wysocki 2009-07-07 11:12:16 UTC

On Tuesday 07 July 2009, Mikael Pettersson wrote:
> Rafael J. Wysocki wrote:
> > The following bug entry is on the current list of known regressions
> > from 2.6.30.  Please verify if it still should be listed and let me know
> > (either way).
> > 
> > 
> > Bug-Entry   : http://bugzilla.kernel.org/show_bug.cgi?id=3D13673
> > Subject             : HIGHMEM64G causes hang in PCI init on 32-bit x86
> > Submitter   : Mikael Pettersson <mikpe@it.uu.se>
> > Date                : 2009-06-26 15:59 (11 days old)
> > First-Bad-Commit:
> http://git.kernel.org/?p=3Dlinux/kernel/git/torvalds/linu=
> > x-2.6.git;a=3Dcommit;h=3D95ee14e4379c5e19c0897c872350570402014742
> > References  : http://marc.info/?l=3Dlinux-pci&m=3D124615181602643&w=3D4
> > Handled-By  : H. Peter Anvin <hpa@zytor.com>
> 
> Fixed in 2.6.31-rc2.