[2] The problem seems be correlated with my PCI graphic card (matrox
G200 PCI) and my sound card (sound blaster live 5.1).
In fact every time I listen music and that something appens on my screen
(moving a window, watching a movie) the sound stutter.
I think the first thing I should do is to try different kernel version
in order to find when this problem appeared first.
But before I spend time to do this, I would like to know if someone is
going to help me to find the problem.
If I get a positive response, I will do my best to help to find the bug.
But If you think this problem isn't really important, I don't want to
spend hours to find the problem ...
[3] Keywords:
~ modules: OSS or ALSA (same problem with both)
~ kernel: 2.4.20 (official), 2.4.19 at least. But it works fine with 2.4.8
[7.2] CPU:
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 6
model name : AMD Athlon(tm) MP 2000+
stepping : 2
cpu MHz : 1666.754
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips : 3322.67
processor : 1
vendor_id : AuthenticAMD
cpu family : 6
model : 6
model name : AMD Athlon(tm) Processor
stepping : 2
cpu MHz : 1666.754
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips : 3329.22
[7.3] modules
binfmt_misc 6176 1
lp 7008 0
parport_pc 23368 1
parport 27424 1 [lp parport_pc]
emu10k1 70380 1
soundcore 4516 0 [emu10k1]
ac97_codec 10504 0 [emu10k1]
af_packet 14792 0 (autoclean)
3c59x 27792 1 (autoclean)
supermount 15716 4 (autoclean)
ide-cd 30248 0
cdrom 28800 0 [ide-cd]
ide-scsi 9044 0
scsi_mod 95684 1 [ide-scsi]
usb-ohci 19432 0 (unused)
usbcore 64512 1 [usb-ohci]
rtc 7680 0 (autoclean)
ext3 82292 2
jbd 44736 2 [ext3]
[7.4] Loaded driver and hardware information
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0070-007f : rtc
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
02f8-02ff : serial(auto)
0376-0376 : ide1
0378-037a : parport0
037b-037f : parport0
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial(auto)
0cf8-0cff : PCI conf1
1010-1013 : Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System
Controller
2000-2fff : PCI Bus #02
2000-207f : 3Com Corporation 3c905C-TX/TX-M [Tornado]
2000-207f : 02:08.0
2080-209f : Creative Labs SB Live! EMU10k1
2080-209f : EMU10K1
20a0-20a7 : Creative Labs SB Live! MIDI/Game Port
f000-f00f : Advanced Micro Devices [AMD] AMD-768 [Opus] IDE
f000-f007 : ide0
f008-f00f : ide1
[root@xii root]# cat /proc/iomem
00000000-0009f7ff : System RAM
0009f800-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000c8000-000c87ff : Extension ROM
000f0000-000fffff : System ROM
00100000-1feeffff : System RAM
00100000-00267a41 : Kernel code
00267a42-002e0d7f : Kernel data
1fef0000-1fefefff : ACPI Tables
1feff000-1fefffff : ACPI Non-volatile Storage
1ff00000-1ff7ffff : System RAM
1ff80000-1fffffff : reserved
f4000000-f48fffff : PCI Bus #01
f4000000-f47fffff : Matrox Graphics, Inc. MGA G200 AGP
f4800000-f4803fff : Matrox Graphics, Inc. MGA G200 AGP
f4900000-f5ffffff : PCI Bus #02
f4900000-f4900fff : Advanced Micro Devices [AMD] AMD-768 [Opus] USB
f4900000-f4900fff : usb-ohci
f4901000-f490107f : 3Com Corporation 3c905C-TX/TX-M [Tornado]
f4904000-f4907fff : Matrox Graphics, Inc. MGA G200
f4908000-f490bfff : Matrox Graphics, Inc. MGA G200 (#2)
f5000000-f57fffff : Matrox Graphics, Inc. MGA G200
f5800000-f5ffffff : Matrox Graphics, Inc. MGA G200 (#2)
f6200000-f6200fff : Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P]
System Controller
f8000000-f9ffffff : Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P]
System Controller
fa000000-faffffff : PCI Bus #01
fa000000-faffffff : Matrox Graphics, Inc. MGA G200 AGP
fb000000-fcffffff : PCI Bus #02
fb000000-fbffffff : Matrox Graphics, Inc. MGA G200
fc000000-fcffffff : Matrox Graphics, Inc. MGA G200 (#2)
fec00000-fec03fff : reserved
fee00000-fee00fff : reserved
fff80000-ffffffff : reserved
[7.5] PCI information
00:00.0 Host bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P]
System Controller (rev 11)
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
Region 0: Memory at f8000000 (32-bit, prefetchable) [size=32M]
Region 1: Memory at f6200000 (32-bit, prefetchable) [size=4K]
Region 2: I/O ports at 1010 [disabled] [size=4]
Capabilities: [a0] AGP version 2.0
Status: RQ=15 SBA+ 64bit- FW+ Rate=x1,x2
Command: RQ=0 SBA+ AGP+ 64bit- FW- Rate=<none>
00:01.0 PCI bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P]
AGP Bridge (prog-if 00 [Normal decode])
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: 99
Bus: primary=00, secondary=01, subordinate=01, sec-latency=69
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: f4000000-f48fffff
Prefetchable memory behind bridge: fa000000-faffffff
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
00:07.0 ISA bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ISA (rev 05)
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
00:07.1 IDE interface: Advanced Micro Devices [AMD] AMD-768 [Opus] IDE
(rev 04) (prog-if 8a [Master SecP PriP])
Subsystem: Advanced Micro Devices [AMD] AMD-768 [Opus] 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
Region 4: I/O ports at f000 [size=16]
00:07.3 Bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ACPI (rev 03)
Subsystem: Advanced Micro Devices [AMD] AMD-768 [Opus] ACPI
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-
00:10.0 PCI bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] PCI (rev
05) (prog-if 00 [Normal decode])
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
Bus: primary=00, secondary=02, subordinate=02, sec-latency=69
I/O behind bridge: 00002000-00002fff
Memory behind bridge: f4900000-f5ffffff
Prefetchable memory behind bridge: fb000000-fcffffff
BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
01:05.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200 AGP
(rev 01) (prog-if 00 [VGA])
Subsystem: Matrox Graphics, Inc. MGA-G200 AGP
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: 128 (4000ns min, 8000ns max), cache line size 10
Interrupt: pin A routed to IRQ 5
Region 0: Memory at fa000000 (32-bit, prefetchable) [size=16M]
Region 1: Memory at f4800000 (32-bit, non-prefetchable)
[size=16K]
Region 2: Memory at f4000000 (32-bit, non-prefetchable)
[size=8M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [dc] 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-
Capabilities: [f0] AGP version 1.0
Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2
Command: RQ=31 SBA+ AGP+ 64bit- FW- Rate=x2
02:00.0 USB Controller: Advanced Micro Devices [AMD] AMD-768 [Opus] USB
(rev 07) (prog-if 10 [OHCI])
Subsystem: Advanced Micro Devices [AMD] AMD-768 [Opus] 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 (20000ns max)
Interrupt: pin D routed to IRQ 10
Region 0: Memory at f4900000 (32-bit, non-prefetchable)
[size=4K]
02:04.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200 (rev
01) (prog-if 00 [VGA])
Subsystem: Matrox Graphics, Inc. Millennium G200 SD
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: 128 (4000ns min, 8000ns max), cache line size 10
Interrupt: pin A routed to IRQ 11
Region 0: Memory at fb000000 (32-bit, prefetchable) [size=16M]
Region 1: Memory at f4904000 (32-bit, non-prefetchable)
[size=16K]
Region 2: Memory at f5000000 (32-bit, non-prefetchable)
[size=8M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [dc] 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-
02:06.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 07)
Subsystem: Creative Labs: Unknown device 8064
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, 5000ns max)
Interrupt: pin A routed to IRQ 5
Region 0: I/O ports at 2080 [size=32]
Capabilities: [dc] 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-
02:06.1 Input device controller: Creative Labs SB Live! MIDI/Game Port
(rev 07)
Subsystem: Creative Labs Gameport Joystick
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
Region 0: I/O ports at 20a0 [size=8]
Capabilities: [dc] 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-
02:07.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200 (rev
01) (prog-if 00 [VGA])
Subsystem: Matrox Graphics, Inc. Millennium G200 SD
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: 128 (4000ns min, 8000ns max), cache line size 10
Interrupt: pin A routed to IRQ 10
Region 0: Memory at fc000000 (32-bit, prefetchable) [size=16M]
Region 1: Memory at f4908000 (32-bit, non-prefetchable)
[size=16K]
Region 2: Memory at f5800000 (32-bit, non-prefetchable)
[size=8M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [dc] 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-
02:08.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado]
(rev 78)
Subsystem: Tyan Computer: Unknown device 2466
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: 80 (2500ns min, 2500ns max), cache line size 10
Interrupt: pin A routed to IRQ 10
Region 0: I/O ports at 2000 [size=128]
Region 1: Memory at f4901000 (32-bit, non-prefetchable)
[size=128]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-
[8] Some informations that may be usefull
*** Just down-grading to the kernel 2.4.8 solves the problem
*** I have several graphic cards in my P.C. (one AGP and 2 PCI), but
using only one PCI cause the problem to occur.
*** I have a SMP machine, but I have tried using only one processor,
same problem.
*** I have tried official kernel 2.4.20, with the same problem
*** I also tried to use OSS emu10k1-v0.20a drivers: always the same:
problem doesn't occurs with 2.4.8 but occurs with 2.4.19 and 2.4.20
*** I was thinking about some timings changed for PCI bus since kernel
2.4.8 ?
*** As I said before, if I get a positive response, I will do my best to
help to find the bug. But If you think this problem isn't really
important, I don't want to spend hours to find it ...
Thanks,
Xavier
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