Bug 4310

Summary:

mtrr: type mismatch for e8000000,8000000 old: write-back new: write-combining

Product:

xorg

Reporter:

Bill Nottingham <notting>

Component:

Driver/nVidia (open)

Assignee:

Xorg Project Team <xorg-team>

Status:

RESOLVED FIXED

QA Contact:

Severity:

normal

Priority:

high

CC:

desrt, erik.andren, gajownik, michael.gaber, perry

Version:

6.8.2

Hardware:

x86 (IA32)

OS:

Linux (All)

Whiteboard:

i915 platform:

i915 features:

Attachments:

Description	Flags
X config	none
X log	none

Description Bill Nottingham 2005-08-30 10:29:55 UTC

Happens on X start.

00:00.0 Host bridge: Intel Corporation E7505 Memory Controller Hub (rev 03)
00:00.1 Class ff00: Intel Corporation E7505/E7205 Series RAS Controller (rev
03)00:01.0 PCI bridge: Intel Corporation E7505/E7205 PCI-to-AGP Bridge (rev 03)
00:02.0 PCI bridge: Intel Corporation E7505 Hub Interface B PCI-to-PCI Bridge
(rev 03)
00:02.1 Class ff00: Intel Corporation E7505 Hub Interface B PCI-to-PCI Bridge
RAS Controller (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
USB UHCI Controller #3 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI
Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 82)
00:1f.0 ISA bridge: Intel Corporation 82801DB/DBL (ICH4/ICH4-L) LPC Interface
Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801DB (ICH4) IDE Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus
Controller (rev 02)
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 02)
01:00.0 VGA compatible controller: nVidia Corporation NV34GL [Quadro FX 500/600
PCI] (rev a1)
02:1c.0 PIC: Intel Corporation 82870P2 P64H2 I/OxAPIC (rev 04)
02:1d.0 PCI bridge: Intel Corporation 82870P2 P64H2 Hub PCI Bridge (rev 04)
02:1e.0 PIC: Intel Corporation 82870P2 P64H2 I/OxAPIC (rev 04)
02:1f.0 PCI bridge: Intel Corporation 82870P2 P64H2 Hub PCI Bridge (rev 04)
03:03.0 Ethernet controller: Intel Corporation 82545EM Gigabit Ethernet
Controller (Copper) (rev 01)

[root@apone ~]# cat /proc/mtrr
reg00: base=0x00000000 (   0MB), size=987136MB: write-back, count=1
reg01: base=0x100000000 (4096MB), size=983552MB: write-back, count=1
reg02: base=0xe0000000 (3584MB), size=983552MB: uncachable, count=1
reg03: base=0xdff80000 (3583MB), size=983040MB: uncachable, count=1

Comment 1 Bill Nottingham 2005-08-30 10:30:09 UTC

Created attachment 3122 [details]
X config

Comment 2 Bill Nottingham 2005-08-30 10:30:25 UTC

Created attachment 3123 [details]
X log

Comment 3 Alan Hourihane 2005-09-23 05:26:44 UTC

X will try to setup the write-combining range for the entire AGP space.

It seems you could be using some other process that setups up an MTRR before X,
and it's usually an *fbdev driver that can cause this.

Comment 4 Alan Hourihane 2005-09-23 05:33:27 UTC

reassigning this to Driver/nv as Bill is using an NVIDIA card not the i810 driver.

Comment 5 Bill Nottingham 2005-09-23 08:28:04 UTC

Whoops, apoligies for the misfiled component.

No framebuffer is in use.

Comment 6 Allison Lortie (desrt) 2005-10-15 14:48:48 UTC

"me too".  I get this problem with a Radeon 9600 in an Intel-based ASUS P4P800SE
board.

Some time ago, I filed a bug here --
http://bugzilla.ubuntu.com/show_bug.cgi?id=16122

Comment 7 Allison Lortie (desrt) 2006-01-28 05:30:27 UTC

This bugreport closed in Ubuntu some time ago.  It was fixed with a new kernel
version and I'm reasonably sure it was a kernel bug.

Comment 8 Erik Andren 2006-04-07 04:21:43 UTC

Bill, are you still experiencing this problem using a current version of xorg?

Comment 9 Erik Andren 2006-04-30 17:24:31 UTC

Closing. Please reopen if the problem still persits in a current version of xorg.

Comment 10 Bill Nottingham 2006-05-02 04:50:13 UTC

Sorry about the delay. Appears fixed with a 2.6.16.x kernel and the xorg 1.0.1
server code.

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