I'm getting hundreds of thousands of "DMA overrun on send" messages
in my kernel logs from the i810_audio driver. Help! I'm running stock
Linux 2.4.1.
-- syslog --
Feb 7 22:34:27 angeline kernel: Intel 810 + AC97 Audio, version 0.01, 22:21:54
Feb 7 2001
Feb 7 22:34:27 angeline kernel: PCI: Found IRQ 11 for device 00:1f.5
Feb 7 22:34:27 angeline kernel: PCI: Setting latency timer of device 00:1f.5 to 64
Feb 7 22:34:27 angeline kernel: i810: Intel ICH2 found at IO 0xdc00 and 0xd800, IRQ 11
Feb 7 22:34:27 angeline kernel: ac97_codec: AC97 Audio codec, id: 0x414c:0x432f (Unknown)
Feb 7 22:34:27 angeline kernel: i810_audio: only 48Khz playback available.
...
Feb 7 22:34:57 angeline kernel: DMA overrun on send
Feb 7 22:34:57 angeline last message repeated 633 times
Feb 7 22:34:57 angeline kernel: on send
Feb 7 22:34:57 angeline kernel: DMA overrun on send
Feb 7 22:34:58 angeline last message repeated 2740 times
...
-- lspci -vvv-
00:00.0 Host bridge: Intel Corporation: Unknown device 1130 (rev 02)
Subsystem: ABIT Computer Corp.: Unknown device 0402
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
Latency: 0
Region 0: Memory at d8000000 (32-bit, prefetchable) [size=64M]
Capabilities: [88] #09 [f104]
Capabilities: [a0] AGP version 2.0
Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2
Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>
00:01.0 PCI bridge: Intel Corporation: Unknown device 1131 (rev 02) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32
Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: dc000000-ddffffff
Prefetchable memory behind bridge: d0000000-d7ffffff
BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
00:1e.0 PCI bridge: Intel Corporation 82820 820 (Camino 2) Chipset PCI (rev 01) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=32
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: de000000-dfffffff
Prefetchable memory behind bridge: fff00000-000fffff
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
00:1f.0 ISA bridge: Intel Corporation 82820 820 (Camino 2) Chipset ISA Bridge (ICH2) (rev 01)
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
00:1f.1 IDE interface: Intel Corporation 82820 820 (Camino 2) Chipset IDE U100 (rev 01) (prog-if 80 [Master])
Subsystem: ABIT Computer Corp.: Unknown device 0402
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]
00:1f.2 USB Controller: Intel Corporation 82820 820 (Camino 2) Chipset USB (Hub A) (rev 01) (prog-if 00 [UHCI])
Subsystem: ABIT Computer Corp.: Unknown device 0402
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
Interrupt: pin D routed to IRQ 9
Region 4: I/O ports at d000 [size=32]
00:1f.4 USB Controller: Intel Corporation 82820 820 (Camino 2) Chipset USB (Hub B) (rev 01) (prog-if 00 [UHCI])
Subsystem: ABIT Computer Corp.: Unknown device 0402
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
Interrupt: pin C routed to IRQ 11
Region 4: I/O ports at d400 [size=32]
00:1f.5 Multimedia audio controller: Intel Corporation: Unknown device 2445 (rev 01)
Subsystem: ABIT Computer Corp.: Unknown device 0402
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
Interrupt: pin B routed to IRQ 11
Region 0: I/O ports at d800 [size=256]
Region 1: I/O ports at dc00 [size=64]
01:00.0 VGA compatible controller: nVidia Corporation GeForce 256 (rev 10) (prog-if 00 [VGA])
Subsystem: Elsa AG: Unknown device 0c41
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 (1250ns min, 250ns max)
Interrupt: pin A routed to IRQ 11
Region 0: Memory at dc000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at d0000000 (32-bit, prefetchable) [size=128M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [60] 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: [44] AGP version 2.0
Status: RQ=31 SBA- 64bit- FW+ Rate=x1,x2
Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>
02:02.0 Ethernet controller: Intel Corporation 82557 [Ethernet Pro 100] (rev 08)
Subsystem: Intel Corporation EtherExpress PRO/100+ Management Adapter
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 (2000ns min, 14000ns max), cache line size 08
Interrupt: pin A routed to IRQ 5
Region 0: Memory at df140000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at c000 [size=64]
Region 2: Memory at df000000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at <unassigned> [disabled] [size=1M]
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-
02:03.0 Multimedia audio controller: Aureal Semiconductor Vortex 2 (rev fe)
Subsystem: Diamond Multimedia Systems Monster Sound II
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 (1000ns min, 3000ns max), cache line size 08
Interrupt: pin A routed to IRQ 9
Region 0: Memory at df100000 (32-bit, non-prefetchable) [size=256K]
Region 1: I/O ports at c400 [size=8]
Region 2: I/O ports at c800 [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-
02:04.0 SCSI storage controller: Adaptec AHA-2930CU (rev 03)
Subsystem: Adaptec: Unknown device 3869
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 (1000ns min, 1000ns max), cache line size 08
Interrupt: pin A routed to IRQ 11
Region 0: I/O ports at cc00 [size=256]
Region 1: Memory at df141000 (32-bit, non-prefetchable) [size=4K]
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-
--
Michael S. Fischer <[email protected]> AKA Otterley _O_
Lead Hacketeer, Dynamine Consulting, Silicon Valley, CA |
Phone: +1 650 533 4684 | AIM: IsThisOtterley | ICQ: 4218323 |
"From the bricks of shame is built the hope"--Alan Wilder net.goth