Bug 54948 – System hang while using Firefox, Evolution and Gaim until MTRR is diabled.

• Status: RESOLVED UPSTREAM
• Product: Gentoo Linux

[Description Yu Wang 2004-06-23 18:02:51 UTC]

Under non-root account, after few minutes browsing websites with rich contents,
system hang. The problem remains until I disabled MTRR Support in kernel
configuration, since I found the following message in /var/log/kern.log:

"mtrr: 0x80800000,0x200000 overlaps existing 0x80800000,0x100000"

But the system goes slow after MTRR is disabled.

This had never happened for kernel 2.6.5 and below. Nothing have changed after
the kernel upgrade to 2.6.7.

Reproducible: Always
Steps to Reproduce:
With MTRR Support enabled, go into X and run Firefox, Evolution or Gaim or other software require large amount of memory. Keep playing around with these programs.
Actual Results:  
System hang
Mouse doesn't move
Can't ping through from other host.
Everything is dead

Expected Results:  
Everything alive.

My CPU info:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 6
model name      : Mobile Pentium II
stepping        : 10
cpu MHz         : 366.262
cache size      : 256 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat
pse36 mmx fxsr
bogomips        : 720.89

My Video adapter is Trident Cyber 9525 with 2.5MB RAM

[Comment 1 Kurt Lieber (RETIRED) 2004-06-23 18:06:13 UTC]

Assigned to wrong product.  Fixing and reassigning to bug-wranglers.

[Comment 2 Deedra Waters (RETIRED) 2004-06-23 18:07:43 UTC]

Reassigning to bug-wranglers

[Comment 3 Mr. Bones. (RETIRED) 2004-06-23 18:48:54 UTC]

reopen with output from emerge --info please.

[Comment 4 Yu Wang 2004-06-24 10:19:51 UTC]

Here is emerge --info:

Portage 2.0.50-r8 (default-x86-2004.0, gcc-3.3.3, glibc-2.3.3.20040420-r0, 2.6.7-gentoo-r4)
=================================================================
System uname: 2.6.7-gentoo-r4 i686 Mobile Pentium II
Gentoo Base System version 1.4.16
ccache version 2.3 [enabled]
Autoconf: sys-devel/autoconf-2.59-r3
Automake: sys-devel/automake-1.8.3
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CFLAGS="-O3 -pipe -mmmx -march=pentium2 -fomit-frame-pointer"
CHOST="i686-pc-linux-gnu"
COMPILER="gcc3"
CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3/share/config /usr/share/config /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-O3 -pipe -mmmx -march=pentium2 -fomit-frame-pointer"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs ccache sandbox"
GENTOO_MIRRORS="http://gentoo.oregonstate.edu http://distro.ibiblio.org/pub/Linux/distributions/gentoo"
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY=""
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="X acpi alsa avi cjk crypt divx4linux esd evo fbcon freetype gif gnome gpm gtk gtk2 javascript jpeg libg++ mad mmx nls pam pdflib png pnp quicktime samba sdl slang ssl tcpd truetype usb x86 xv xvid zlib"

[Comment 5 Yu Wang 2004-06-24 13:38:21 UTC]

emerge --info is provided. Now re-opened.

[Comment 6 Greg Kroah-Hartman (RETIRED) 2004-06-30 14:42:48 UTC]

Does this happen with a stock kernel.org 2.6.7 kernel?

[Comment 7 Yu Wang 2004-06-30 14:55:09 UTC]

Yes, it happens with all the 2.6.7 kernel I've tried.

[Comment 8 Greg Kroah-Hartman (RETIRED) 2004-06-30 15:15:49 UTC]

Then it's not a gentoo specific bug.

Please open this up at bugzilla.kernel.org, nothing we can do here.

thanks.