VIA KT133A / athlon / MMX

Hi !

I'm a recent user of the duo VIA KT133A chipset/Athlon CPU and after
compiling a customized kernel and booting on it, I fall on kernel panic at boot time, just little time after starting the init process.
After some search and test, it appears that it was the K7 mmx routines
which cause the crash
Using the "default" routines by replacing #ifdef CONFIG_MK7 by #ifdef 0
solves the problem.
I just wanted to mention that, here, this crash is systematic with
k7-mmx routines.

I also just wanted to know the current status of this problem since I
have not found clear answer on the different threads about this topic. As I understand, this problem does not exist on every athlon but only on some which work with the VIA KT133 chipset ? Right ?

Anyway, feel free to ask me more information if needed and please,
CC'ed me personally the answers/comments because I'm not subscribed to the LKML.

Config.:
ABIT KT7A (without RAID)
Athlon 1.2 GHz
256 Meg RAM
FSB at 133 MHz
(Other card description is not imortant I think)
Running Mandrake 8.0 (*) (at home)
with kernel 2.4.7 (or 2.4.6) compiled with gcc 3.0 (same pb with gcc 2.96 (non-official, I know))

(*) In fact, this distribution has a special startup and switch immediatly (at startup) in a graphic mode for showing the start of the runlevel. And I think/suppose that this definitly causes the crash.

Thanks,

Pierre

Hi,

FWIW,
I have an ASUS A7V133 with a T-Bird 900, running 2.4.7ac3+ext3 with K7 optimization enabled.
It's rock solid.

2.4.6ac5 and previous ran a long time without problems too.

'lspci -vxxx' shows:

00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 03)
Subsystem: Asustek Computer, Inc.: Unknown device 8042
Flags: bus master, medium devsel, latency 0
Memory at e4000000 (32-bit, prefetchable) [size=64M]
Capabilities: [a0] AGP version 2.0
Capabilities: [c0] Power Management version 2
00: 06 11 05 03 06 00 10 a2 03 00 00 06 00 00 00 00
10: 08 00 00 e4 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 43 10 42 80
30: 00 00 00 00 a0 00 00 00 00 00 00 00 00 00 00 00
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50: 17 a4 6b b4 06 28 20 20 88 80 08 08 10 18 20 20
60: 3f ff 55 a0 52 52 52 00 40 7c 86 0f 08 1f 00 00
70: de c0 cc 0c 0e a1 d2 00 01 b4 11 02 00 00 00 09
80: 0f 40 00 00 c0 00 00 00 03 00 e0 1f 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 02 c0 20 00 17 02 00 1f 00 00 00 00 6e 02 14 00
b0: 7f 69 02 c5 32 33 28 00 00 00 00 00 00 00 00 00
c0: 01 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 84 22 00 00 00 00 00 91 06

00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP] (prog-if 00 [N
ormal decode])
Flags: bus master, 66Mhz, medium devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 Memory behind bridge: e0000000-e16fffff
Prefetchable memory behind bridge: e2f00000-e3ffffff
Capabilities: [80] Power Management version 2
00: 06 11 05 83 07 00 30 22 00 00 04 06 00 00 01 00
10: 00 00 00 00 00 00 00 00 00 01 01 00 e0 d0 00 00
20: 00 e0 60 e1 f0 e2 f0 e3 00 00 00 00 00 00 00 00
30: 00 00 00 00 80 00 00 00 00 00 00 00 00 00 08 00
40: cb cd 18 14 27 72 05 83 00 00 00 00 00 00 00 00
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 01 00 22 02 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:04.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 40)
Subsystem: Asustek Computer, Inc.: Unknown device 8042
Flags: bus master, stepping, medium devsel, latency 0
Capabilities: [c0] Power Management version 2
00: 06 11 86 06 87 00 10 02 40 00 01 06 00 00 80 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 43 10 42 80
30: 00 00 00 00 c0 00 00 00 00 00 00 00 00 00 00 00
40: 08 41 00 00 00 80 62 ee 05 01 44 00 00 00 00 f3
50: 0e 06 00 00 00 b0 4a 30 00 04 ff 08 80 00 00 00
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 25 08 40 82 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 09 00 00 00 60 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 01 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 41 00 00 00 00 00 00 00 00 00

00:04.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 06) (prog-if 8a [Master SecP PriP])
[snipped]

00:04.3 USB Controller: VIA Technologies, Inc. UHCI USB (rev 16) (prog-if 00 [UHCI])
[snipped]

00:04.4 Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 40)
Subsystem: Asustek Computer, Inc.: Unknown device 8042
Flags: medium devsel, IRQ 9
Capabilities: [68] Power Management version 2
00: 06 11 57 30 00 00 90 02 40 00 00 06 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 43 10 42 80
30: 00 00 00 00 68 00 00 00 00 00 00 00 00 00 00 00
40: 20 80 49 00 12 10 00 00 01 e4 00 00 48 10 00 00
50: 00 ff ff 04 90 04 00 00 00 ff ff 00 43 10 42 80
60: 00 00 00 00 00 00 00 00 01 00 02 00 00 00 00 00
70: 01 e2 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 01 e8 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 01 00 00 00 40 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:04.5 Multimedia audio controller: VIA Technologies, Inc. AC97 Audio Controller (rev 50)
[snipped]

00:0b.0 Multimedia video controller: Brooktree Corporation Bt878 (rev
02)
[snipped]

00:0b.1 Multimedia controller: Brooktree Corporation Bt878 (rev 02) [snipped]

00:0d.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139 (rev 10)
[snipped]

00:11.0 Unknown mass storage controller: Promise Technology, Inc. 20265 (rev 02)
[snipped]

01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200 AGP (rev 03) (prog-if 00 [VGA])
[snipped]

Stefan

Jul 10 00:43:47 unknown kernel: Out of Memory: Killed process 24829
(eatmem).