PROBLEM: DMA over CPU" memory leak in Kernel 2.6.8.1

From: Christopher Beppler
Date: Sat Aug 21 2004 - 07:19:15 EST

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Hi... this is my first bug report. I hope that it will help you.

Thank You

1.
"DMA over CPU" memory leak if I burn Audio-CDs

2.
I installed Linux 2.6.8.1 and tried to burn an Audio-CD. Then the PC swapped a lot until he freezes. I tried to increase the swap-partition without a success. Then I stopped burning with xcdroast and burned on the bash directly with cdrecord (dev=ATAPI:0,1,0). Then I saw always at the same time. DMA over CPU-Error... an many memory dumps rushed over my screen and he started "swapping to death" He killed some processes to get more memory (I have 256MB RAM and 384 MB swap). I am not able to print these Error-Messages, because I have no access to my PC then. Then I installed Linux 2.6.7 again and everything works probably.

3.
hdd, memory, swap, dma over cpu

4.
Linux version 2.6.8.1 (root@christopher) (gcc-Version 3.3.3) #1 Wed Aug 18 19:50:01 CEST 2004

6.
cdrecord -dev=ATAPI:0,1,0 -dummy -speed=8 -audio *.wav

7.1.
cdrecord 2.00.3
Gnu C 3.3.3
Gnu make 3.80
binutils 2.14
util-linux 2.12a
mount 2.12a
module-init-tools 3.0
e2fsprogs 1.35
jfsutils 1.1.6
PPP 2.4.2
nfs-utils 1.0.6
Linux C Library 2.3.3
Dynamic linker (ldd) 2.3.3
Linux C++ Library 5.0.5
Procps 3.2.1
Net-tools 1.60
Kbd 1.12
Sh-utils 5.2.1
Modules Loaded snd_pcm_oss snd_mixer_oss agpgart nvidia snd_emu10k1 snd_rawmidi snd_pcm snd_timer snd_seq_device snd_ac97_codec snd_page_alloc snd_util_mem snd_hwdep snd soundcore via_rhine mii crc32

7.2.
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 4
model name : AMD Athlon(tm) processor
stepping : 4
cpu MHz : 1333.922
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 pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr syscall mmxext 3dnowext 3dnow
bogomips : 2629.63

7.3.
snd_pcm_oss 49128 0 - Live 0xd0d26000
snd_mixer_oss 17344 3 snd_pcm_oss, Live 0xd0d10000
agpgart 27624 0 - Live 0xd0ca5000
nvidia 4819348 12 - Live 0xd1188000
snd_emu10k1 91848 3 - Live 0xd0bde000
snd_rawmidi 20352 1 snd_emu10k1, Live 0xd0bc6000
snd_pcm 84964 2 snd_pcm_oss,snd_emu10k1, Live 0xd0bf8000
snd_timer 21124 1 snd_pcm, Live 0xd0bbf000
snd_seq_device 6536 2 snd_emu10k1,snd_rawmidi, Live 0xd0b90000
snd_ac97_codec 66436 1 snd_emu10k1, Live 0xd0bcc000
snd_page_alloc 8968 2 snd_emu10k1,snd_pcm, Live 0xd0ba3000
snd_util_mem 3264 1 snd_emu10k1, Live 0xd0b93000
snd_hwdep 7200 1 snd_emu10k1, Live 0xd0b9b000
snd 46052 12 snd_pcm_oss,snd_mixer_oss,snd_emu10k1,snd_rawmidi,snd_pcm,snd_timer,snd_seq_device,snd_ac97_codec,snd_util_mem,snd_hwdep, Live 0xd0baa000
soundcore 7392 3 snd, Live 0xd0b87000
via_rhine 18760 0 - Live 0xd0b95000
mii 4032 1 via_rhine, Live 0xd0b8c000
crc32 3840 1 via_rhine, Live 0xd0b8a000

7.4.
0000-001f : dma1
0020-0021 : pic1
0040-005f : timer
0060-006f : keyboard
0070-0077 : rtc
0080-008f : dma page reg
00a0-00a1 : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
0376-0376 : ide1
03c0-03df : vesafb
03f6-03f6 : ide0
0cf8-0cff : PCI conf1
d000-d01f : 0000:00:09.0
d000-d01f : EMU10K1
d400-d407 : 0000:00:09.1
d800-d8ff : 0000:00:0a.0
d800-d8ff : via-rhine
dc00-dc0f : 0000:00:11.1
dc00-dc07 : ide0
dc08-dc0f : ide1
e000-e01f : 0000:00:11.2
e400-e41f : 0000:00:11.3
e800-e81f : 0000:00:11.4

00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000cebff : Video ROM
000f0000-000fffff : System ROM
00100000-0ffeffff : System RAM
00100000-00271434 : Kernel code
00271435-002de13f : Kernel data
d0000000-dfffffff : PCI Bus #01
d0000000-d7ffffff : 0000:01:00.0
d0000000-d02fffff : vesafb
d8000000-d807ffff : 0000:01:00.0
e0000000-e3ffffff : 0000:00:00.0
e4000000-e5ffffff : PCI Bus #01
e4000000-e4ffffff : 0000:01:00.0
e4000000-e4ffffff : nvidia
e7000000-e70000ff : 0000:00:0a.0
e7000000-e70000ff : via-rhine

7.5.
00:00.0 Host bridge: VIA Technologies, Inc. VT8366/A/7 [Apollo KT266/A/333]
Subsystem: Elitegroup Computer Systems: Unknown device 0996
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 0: Memory at e0000000 (32-bit, prefetchable) [size=64M]
Capabilities: [a0] AGP version 2.0
Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4
Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP+ GART64- 64bit- FW- Rate=x4
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-

00:01.0 PCI bridge: VIA Technologies, Inc. VT8366/A/7 [Apollo KT266/A/333 AGP] (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: 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: e4000000-e5ffffff
Prefetchable memory behind bridge: d0000000-dfffffff
BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
Capabilities: [80] 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-

00:09.0 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: 32 (500ns min, 5000ns max)
Interrupt: pin A routed to IRQ 11
Region 0: I/O ports at d000 [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-

00:09.1 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: 32
Region 0: I/O ports at d400 [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-

00:0a.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 43)
Subsystem: D-Link System Inc DFE-530TX rev A
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: 32 (750ns min, 2000ns max), cache line size 08
Interrupt: pin A routed to IRQ 11
Region 0: I/O ports at d800 [size=256]
Region 1: Memory at e7000000 (32-bit, non-prefetchable) [size=256]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [40] 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-

00:11.0 ISA bridge: VIA Technologies, Inc. VT8233 PCI to ISA Bridge
Subsystem: Elitegroup Computer Systems: Unknown device 0996
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
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-

00:11.1 IDE interface: VIA Technologies, Inc. VT82C586/B/686A/B PIPC Bus Master IDE (rev 06) (prog-if 8a [Master SecP PriP]) Sub 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: 32
Region 4: I/O ports at dc00 [size=16]
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-

00:11.2 USB Controller: VIA Technologies, Inc. USB (rev 18) (prog-if 00 [UHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
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: 32, cache line size 08
Interrupt: pin D routed to IRQ 11
Region 4: I/O ports at e000 [size=32]
Capabilities: [80] 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-

00:11.3 USB Controller: VIA Technologies, Inc. USB (rev 18) (prog-if 00 [UHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
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: 32, cache line size 08
Interrupt: pin D routed to IRQ 11
Region 4: I/O ports at e400 [size=32]
Capabilities: [80] 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-

00:11.4 USB Controller: VIA Technologies, Inc. USB (rev 18) (prog-if 00 [UHCI])
Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
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: 32, cache line size 08
Interrupt: pin D routed to IRQ 11
Region 4: I/O ports at e800 [size=32]
Capabilities: [80] 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-

01:00.0 VGA compatible controller: nVidia Corporation NV25 [GeForce4 Ti4400] (rev a2) (prog-if 00 [VGA])
Subsystem: LeadTek Research Inc.: Unknown device 2892
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: 248 (1250ns min, 250ns max)
Interrupt: pin A routed to IRQ 5
Region 0: Memory at e4000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at d0000000 (32-bit, prefetchable) [size=128M]
Region 2: Memory at d8000000 (32-bit, prefetchable) [size=512K]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [60] 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-
Capabilities: [44] AGP version 2.0
Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4
Command: RQ=32 ArqSz=0 Cal=0 SBA- AGP+ GART64- 64bit- FW- Rate=x4
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