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Date: Sun, 5 Nov 2000 18:33:08 +0100 (CET)
From: Manuel Teira <mteira@bbvnet.com>
To: linux-kernel@vger.kernel.org
Subject: AGP memory corruption for ALI M1541 chipset
Message-ID: <Pine.LNX.4.21.0011051809440.1154-200000@localhost>
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Hello.

1.- testgart and the glx module with AGP enabled show memory corruption
errors.

2.- The AGP gart module loads under my laptop (K6-2 450Mhz, ALI M1541
chipset, 64Mb RAM). Syslog is showing the following data:
Nov  3 19:31:20 localhost kernel: Linux agpgart interface v0.99 (c) Jeff
Hartmann
Nov  3 19:31:20 localhost kernel: agpgart: Maximum main memory to use for
agp memory: 27M
Nov  3 19:31:20 localhost kernel: agpgart: Detected Ali M1541 chipset
Nov  3 19:31:20 localhost kernel: agpgart: AGP aperture is 64M @ 0xe0000000

Then, the glx module using AGP modes mach64_dma=3 or mach64_dma=4 shows
corrupted textures, and even crashes the machine.

Trying to isolate the problem, I test the program testgart (included with
this mail), and it says:
version: 0.99
bridge id: 0x154110b9
agp_mode: 0x1c000203
aper_base: 0xe0000000
aper_size: 64
pg_total: 6912
pg_system: 6912
pg_used: 0
entry.key : 0
entry.key : 1
Allocated 8 megs of GART memory
MemoryBenchmark: 81 mb/s
MemoryBenchmark: 82 mb/s
MemoryBenchmark: 82 mb/s
Average speed: 81 mb/s
Testing data integrity (1st pass): failed on first pass!
Testing data integrity (2nd pass): failed on second pass!

At the same time, the syslog is dumping lines with this shape:
Nov  5 18:19:50 localhost kernel: memory : c3998d60
Nov  5 18:19:50 localhost kernel: memory : c0e8fba0

The testgart doesn't fail all the time. But the kernel-memory lines shows
in the syslog anyway.

With the glx module, I've also seen this line into the syslog:

Nov  3 19:31:20 localhost kernel: apm: get_event: Interface not connected

And then, the machine is not able to power down on halt. It says "Power
down" and nothing more.

cat /proc/version
Linux version 2.4.0-test10 (root@panoramix) (gcc version 2.95.2 20000220
(Debian GNU/Linux)) #2 Fri Nov 3 19:52:53 CET 2000

No Oops.

The testgart that I've used is attatched in this mail.

The output of the ver_linux script is:
-- Versions installed: (if some fields are empty or look
-- unusual then possibly you have very old versions)
Linux panoramix 2.4.0-test10 #2 Fri Nov 3 19:52:53 CET 2000 i586 unknown
Kernel modules         2.3.19
Gnu C                  2.95.2
Gnu Make               3.79.1
Binutils               2.10.91
Linux C Library        2.1.96
Dynamic linker         ldd (GNU libc) 2.1.96
Procps                 2.0.6
Mount                  2.10o
Net-tools              2.05
Kbd                    0.99
Sh-utils               2.0i
Modules Loaded         loop agpgart ppp_deflate bsd_comp ppp_async maestro soundcore ppp_generic serial_cs pcnet_cs 8390 ipt_MASQUERADE iptable_nat ip_conntrack ip_tables ds i82365 pcmcia_core nls_iso8859-1 nls_cp437 vfat fat

The /proc/cpuinfo dumps:

processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 5
model           : 8
model name      : AMD-K6(tm) 3D processor
stepping        : 12
cpu MHz         : 451.000040
cache size      : 64 KB
fdiv_bug        : no
hlt_bug         : no
sep_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr mce cx8 sep mtrr pge mmx 3dnow
bogomips        : 901.12

The /proc/modules dumps:
loop                    7392   0 (autoclean)
agpgart                12752   0 (autoclean)
ppp_deflate            39168   0 (autoclean)
bsd_comp                4160   0 (autoclean)
ppp_async               6224   1 (autoclean)
maestro                25360   1 (autoclean)
soundcore               3664   2 (autoclean) [maestro]
ppp_generic            12704   3 (autoclean) [ppp_deflate bsd_comp
ppp_async]
serial_cs               5616   0 (unused)
pcnet_cs               11200   1
8390                    6112   0 [pcnet_cs]
ipt_MASQUERADE          1296   1 (autoclean)
iptable_nat            12224   0 [ipt_MASQUERADE]
ip_conntrack           12384   1 [ipt_MASQUERADE iptable_nat]
ip_tables               9888   4 [ipt_MASQUERADE iptable_nat]
ds                      6608   2 [serial_cs pcnet_cs]
i82365                 23216   2
pcmcia_core            43392   0 [serial_cs pcnet_cs ds i82365]
nls_iso8859-1           2848   1 (autoclean)
nls_cp437               4352   1 (autoclean)
vfat                   10320   1
fat                    30080   0 [vfat]

The /proc/ioports dumps:
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-017f : Acer Laboratories Inc. [ALi] M5229 IDE
  0170-0177 : ide1
01f0-01ff : Acer Laboratories Inc. [ALi] M5229 IDE
  01f0-01f7 : ide0
02f8-02ff : serial(set)
0300-031f : pcnet_cs
0376-0376 : Acer Laboratories Inc. [ALi] M5229 IDE
  0376-0376 : ide1
03c0-03df : vga+
03e8-03ef : serial(set)
03f6-03f6 : Acer Laboratories Inc. [ALi] M5229 IDE
  03f6-03f6 : ide0
03f8-03ff : serial(set)
0cf8-0cff : PCI conf1
1c20-1c3f : Acer Laboratories Inc. [ALi] M7101 PMU
e000-efff : PCI Bus #01
  e800-e8ff : ATI Technologies Inc 3D Rage LT Pro AGP-133
f800-f8ff : ESS Technology ES1978 Maestro 2E
  f800-f8ff : ESS Maestro 2E
fcf0-fcff : Acer Laboratories Inc. [ALi] M5229 IDE
  fcf0-fcf7 : ide0
  fcf8-fcff : ide1

The /proc/iomem dumps:
loop                    7392   0 (autoclean)
agpgart                12752   0 (autoclean)
ppp_deflate            39168   0 (autoclean)
bsd_comp                4160   0 (autoclean)
ppp_async               6224   1 (autoclean)
maestro                25360   1 (autoclean)
soundcore               3664   2 (autoclean) [maestro]
ppp_generic            12704   3 (autoclean) [ppp_deflate bsd_comp
ppp_async]
serial_cs               5616   0 (unused)
pcnet_cs               11200   1
8390                    6112   0 [pcnet_cs]
ipt_MASQUERADE          1296   1 (autoclean)
iptable_nat            12224   0 [ipt_MASQUERADE]
ip_conntrack           12384   1 [ipt_MASQUERADE iptable_nat]
ip_tables               9888   4 [ipt_MASQUERADE iptable_nat]
ds                      6608   2 [serial_cs pcnet_cs]
i82365                 23216   2
pcmcia_core            43392   0 [serial_cs pcnet_cs ds i82365]
nls_iso8859-1           2848   1 (autoclean)
nls_cp437               4352   1 (autoclean)
vfat                   10320   1
fat                    30080   0 [vfat]

The lspci -vvv dumps:
00:00.0 Host bridge: Acer Laboratories Inc. [ALi] M1541 (rev 04)
	Subsystem: Acer Laboratories Inc. [ALi] ALI M1541 Aladdin V/V+ AGP System Controller
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
	Latency: 32
	Region 0: Memory at e0000000 (32-bit, non-prefetchable) [size=64M]
	Capabilities: [b0] AGP version 1.0
		Status: RQ=28 SBA+ 64bit- FW- Rate=x1,x2
		Command: RQ=28 SBA+ AGP+ 64bit- FW- Rate=x2
	Capabilities: [e0] Power Management version 1
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:01.0 PCI bridge: Acer Laboratories Inc. [ALi] M5243 (rev 04) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 99
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=99
	I/O behind bridge: 0000e000-0000efff
	Memory behind bridge: fd000000-fecfffff
	Prefetchable memory behind bridge: fff00000-000fffff
	BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-

00:03.0 CardBus bridge: Texas Instruments PCI1251B
	Subsystem: Acer Laboratories Inc. [ALi]: Unknown device ac1f
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 168, cache line size 08
	Interrupt: pin A routed to IRQ 11
	Region 0: Memory at 10000000 (32-bit, non-prefetchable) [size=4K]
	Bus: primary=00, secondary=02, subordinate=05, sec-latency=176
	Memory window 0: 00000000-00000000 (prefetchable)
	Memory window 1: 00000000-00000000 (prefetchable)
	I/O window 0: 00000000-00000003
	I/O window 1: 00000000-00000003
	BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset+ 16bInt+ PostWrite+
	16-bit legacy interface ports at 0001

00:03.1 CardBus bridge: Texas Instruments PCI1251B
	Subsystem: Acer Laboratories Inc. [ALi]: Unknown device ac1f
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 168, cache line size 08
	Interrupt: pin B routed to IRQ 11
	Region 0: Memory at 10001000 (32-bit, non-prefetchable) [size=4K]
	Bus: primary=00, secondary=06, subordinate=09, sec-latency=176
	Memory window 0: 00000000-00000000 (prefetchable)
	Memory window 1: 00000000-00000000 (prefetchable)
	I/O window 0: 00000000-00000003
	I/O window 1: 00000000-00000003
	BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset+ 16bInt+ PostWrite+
	16-bit legacy interface ports at 0001

00:07.0 ISA bridge: Acer Laboratories Inc. [ALi] M1533 PCI to ISA Bridge [Aladdin IV] (rev 0a)
	Subsystem: Acer Laboratories Inc. [ALi] ALI M1533 Aladdin IV ISA Bridge
	Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort+ <MAbort+ >SERR- <PERR-
	Latency: 0

00:09.0 Multimedia audio controller: ESS Technology ES1978 Maestro 2E (rev 10)
	Subsystem: CLEVO/KAPOK Computer: Unknown device 0982
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 64 (500ns min, 6000ns max)
	Interrupt: pin A routed to IRQ 5
	Region 0: I/O ports at f800 [size=256]
	Capabilities: [c0] Power Management version 2
		Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0-,D1+,D2+,D3hot+,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:0f.0 IDE interface: Acer Laboratories Inc. [ALi] M5229 IDE (rev 20) (prog-if fa)
	Subsystem: Acer Laboratories Inc. [ALi] M5229 IDE
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0 (500ns min, 1000ns max)
	Interrupt: pin A routed to IRQ 0
	Region 0: I/O ports at 01f0 [size=16]
	Region 1: I/O ports at 03f4
	Region 2: I/O ports at 0170 [size=16]
	Region 3: I/O ports at 0374
	Region 4: I/O ports at fcf0 [size=16]

00:11.0 Bridge: Acer Laboratories Inc. [ALi] M7101 PMU (rev 09)
	Subsystem: Acer Laboratories Inc. [ALi]: Unknown device 1533
	Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-

00:13.0 USB Controller: Acer Laboratories Inc. [ALi] M5237 USB (rev 03) (prog-if 10 [OHCI])
	Subsystem: Acer Laboratories Inc. [ALi] M5237 USB
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 64, cache line size 08
	Interrupt: pin A routed to IRQ 11
	Region 0: Memory at fedff000 (32-bit, non-prefetchable) [size=4K]

01:00.0 VGA compatible controller: ATI Technologies Inc 3D Rage LT Pro AGP-133 (rev dc) (prog-if 00 [VGA])
	Subsystem: CLEVO/KAPOK Computer: Unknown device 0982
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 66 (2000ns min), cache line size 08
	Interrupt: pin A routed to IRQ 11
	Region 0: Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
	Region 1: I/O ports at e800 [size=256]
	Region 2: Memory at fecff000 (32-bit, non-prefetchable) [size=4K]
	Expansion ROM at <unassigned> [disabled] [size=128K]
	Capabilities: [50] AGP version 1.0
		Status: RQ=255 SBA+ 64bit- FW- Rate=x1,x2
		Command: RQ=28 SBA+ AGP+ 64bit- FW- Rate=x2
	Capabilities: [5c] Power Management version 1
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-


Best regards.

--
Manuel Teira

--8323328-1848710380-973445588=:1154
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