At Wed, 05 Mar 2008 21:14:23 +1300, Michael Cree wrote:
I recently installed a M-Audio Revolution 7.1 sound card into DEC/Compaq Alpha XP1000, and it is causing crashes and complete lock ups of the computer when I attempt to play sound through the sound card. Since this is my main computer I shifted the card to a DEC Alpha PWS500au and it causes the same lock ups there, and in one case a kernel oops made it into the system log (listed below). The crashes occur when any application plays sound through the card. The first instance of running an application (such as aplay or speaker-test) after bootup succeeds; it's the second time one runs such an application that the system crashes. I am using the ice1724 alsa driver.
The sound card works fine - I've verified it on a MS Windows machine. It also worked fine when I installed it in a x86_64 machine running Debian testing. This seems to be a bug possibly specific to the Alpha architecture.
Any ideas as to the problem?
The oops looks related with mmap. Maybe alpha doesn't support the mmap of coherent DMA pages like intel architectures allow?
Try to disable mmap support in the driver once - e.g. comment out SNDRV_PCM_INFO_MMAP in struct snd_pcm_hardware.info fields found in ice1724.c. Then run aplay with -Dhw option (the default would take mmap) and give the WAV file the hardware supports (32bit-LE 2ch or more).
If this works, we can add some workarounds in the ALSA PCM core routine for mmap.
Takashi
Any suggestions as to effective debugging? I turned on the debug options for alsa in the kernel config and re-compiled, but couldn't find any alsa debugging information in any of the system logs.
Basic system details follow:
DEC Alpha PWS500au with a 600MHz Alpha EV56 cpu. Debian GNU/Linux - up to date testing (Lenny) distribution. 2.6.24.3 verbatim kernel self-compiled and alsa as provided in that kernel.
The kernel oops from one crash is as follows:
Mar 4 22:04:04 aleph kernel: Kernel bug at mm/mmap.c:2054 Mar 4 22:04:04 aleph kernel: speaker-test(1885): Kernel Bug 1 Mar 4 22:04:04 aleph kernel: pc = [<fffffc000036bec4>] ra = [<fffffc000036be88>] ps = 0000 Not tainted Mar 4 22:04:04 aleph kernel: pc is at exit_mmap+0x134/0x150 Mar 4 22:04:04 aleph kernel: ra is at exit_mmap+0xf8/0x150 Mar 4 22:04:04 aleph kernel: v0 = 0000000000000000 t0 = 0000000000000003 t1 = 0000000000000040 Mar 4 22:04:04 aleph kernel: t2 = 000000000000003f t3 = fffffc002300c5f8 t4 = 0000000000000001 Mar 4 22:04:04 aleph kernel: t5 = fffffc00001da000 t6 = 0000000000000000 t7 = fffffc00212dc000 Mar 4 22:04:04 aleph kernel: a0 = 0000000000000000 a1 = fffffc002300c400 a2 = 0000000000000000 Mar 4 22:04:04 aleph kernel: a3 = 0000000000000000 a4 = 0000000000000000 a5 = 0000000000000000 Mar 4 22:04:04 aleph kernel: t8 = 0000000000000000 t9 = 0000000d1bc1e51d t10= 1a00000000000000 Mar 4 22:04:04 aleph kernel: t11= 0000000000002000 pv = fffffc000037b3d0 at = 0000000000000003 Mar 4 22:04:04 aleph kernel: gp = fffffc00006fb518 sp = fffffc00212dfbe8 Mar 4 22:04:04 aleph kernel: Trace: Mar 4 22:04:04 aleph kernel: [<fffffc000032516c>] mmput+0x5c/0x100 Mar 4 22:04:04 aleph kernel: [<fffffc0000329820>] exit_mm+0xc0/0x180 Mar 4 22:04:04 aleph kernel: [<fffffc000032a95c>] do_exit+0x16c/0x950 Mar 4 22:04:04 aleph kernel: [<fffffc000032b184>] do_group_exit+0x44/0xc0 Mar 4 22:04:04 aleph kernel: [<fffffc0000335a9c>] get_signal_to_deliver+0x2fc/0x450 Mar 4 22:04:04 aleph kernel: [<fffffc00003167f4>] do_notify_resume+0xb4/0x570 Mar 4 22:04:04 aleph kernel: [<fffffc00003110cc>] work_pending+0x5c/0x70 Mar 4 22:04:04 aleph kernel: [<fffffc0000333f60>] __sigqueue_alloc+0x40/0xc0 Mar 4 22:04:04 aleph kernel: [<fffffc000038f7a0>] do_ioctl+0x30/0x90 Mar 4 22:04:04 aleph kernel: [<fffffc0000334954>] specific_send_sig_info+0xd4/0x110 Mar 4 22:04:04 aleph kernel: [<fffffc0000334a9c>] force_sig_info+0x8c/0xe0 Mar 4 22:04:04 aleph kernel: [<fffffc0000310bdc>] entMM+0x9c/0xc0 Mar 4 22:04:04 aleph kernel: Mar 4 22:04:04 aleph kernel: Code: a77df1b0 6b5b497f 27ba0039 23bdf664 c3ffffec 00000081 <00000806> 005efcfe Mar 4 22:04:04 aleph kernel: Fixing recursive fault but reboot is needed!
Modules installed: ipv6 evdev snd_ice1724 snd_ice17xx_ak4xxx snd_ac97_codec ac97_bus snd_ak4114 snd_pt2258 snd_i2c snd_ak4xxx_adda snd_mpu401_uart snd_pcm_oss snd_pcm snd_page_alloc snd_mixer_oss snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd soundcore pcspkr serio_raw tulip
Sound devices: **** List of PLAYBACK Hardware Devices **** card 0: Revolution71 [M Audio Revolution-7.1], device 0: ICE1724 [ICE1724] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Revolution71 [M Audio Revolution-7.1], device 1: IEC1724 IEC958 [IEC1724 IEC958] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Revolution71 [M Audio Revolution-7.1], device 2: ICE1724 Surrounds [ICE1724 Surround PCM] Subdevices: 3/3 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2
cat /proc/asound/cards: 0 [Revolution71 ]: ICE1724 - M Audio Revolution-7.1 M Audio Revolution-7.1 at 0x8480, irq 40
PCI devices: 00:03.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 30) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 255 (5000ns min, 10000ns max), Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 24 Region 0: I/O ports at 9000 [size=128] Region 1: Memory at 09259000 (32-bit, non-prefetchable) [size=128] Expansion ROM at 09200000 [disabled] [size=256K] Kernel driver in use: tulip Kernel modules: tulip
00:07.0 ISA bridge: Contaq Microsystems 82c693 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0
00:07.1 IDE interface: Contaq Microsystems 82c693 (prog-if 80 [Master]) Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 0 Region 0: I/O ports at 01f0 [size=8] Region 1: I/O ports at 03f4 [size=1] Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [disabled] [size=8] Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable) [disabled] [size=1] Region 4: I/O ports at 9080 [size=16] Kernel driver in use: Cypress_IDE
00:07.2 IDE interface: Contaq Microsystems 82c693 (prog-if 00 []) Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin B routed to IRQ 0 Region 0: I/O ports at 01f0 [size=8] Region 1: I/O ports at 03f4 [size=1] Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [disabled] [size=8] Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable) [disabled] [size=1] Region 4: Memory at 09240000 (32-bit, non-prefetchable) [disabled] [size=64K]
00:07.3 USB Controller: Contaq Microsystems 82c693 (prog-if 10 [OHCI]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 248 Interrupt: pin A routed to IRQ 10 Region 0: Memory at 09258000 (32-bit, non-prefetchable) [size=4K] Kernel driver in use: ohci_hcd
00:0c.0 VGA compatible controller: Digital Equipment Corporation PBXGB [TGA2] (rev 22) (prog-if 00 [VGA controller]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR+ INTx- Latency: 255 (2000ns min, 16000ns max) Interrupt: pin A routed to IRQ 32 Region 0: Memory at 10000000 (32-bit, prefetchable) [size=128M] Expansion ROM at 09250000 [disabled] [size=32K]
00:14.0 PCI bridge: Digital Equipment Corporation DECchip 21152 (rev 02) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 255, Cache Line Size: 64 bytes Bus: primary=00, secondary=01, subordinate=01, sec-latency=255 I/O behind bridge: 00008000-00008fff Memory behind bridge: 09000000-090fffff Prefetchable memory behind bridge: 0000000009100000-00000000091fffff Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
01:04.0 SCSI storage controller: QLogic Corp. ISP1020 Fast-wide SCSI (rev 05) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 248, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 27 Region 0: I/O ports at 8000 [size=256] Region 1: Memory at 09000000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at 09100000 [disabled] [size=64K] Kernel driver in use: qla1280
01:09.0 Multimedia audio controller: VIA Technologies Inc. VT1720/24 [Envy24PT/HT] PCI Multi-Channel Audio Controller (rev 01) Subsystem: VIA Technologies Inc. M-Audio Revolution 7.1 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 248 Interrupt: pin A routed to IRQ 40 Region 0: I/O ports at 8480 [size=32] Region 1: I/O ports at 8400 [size=128] Capabilities: [80] 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- Kernel driver in use: ICE1724 Kernel modules: snd-ice1724
Cheerz Michael. _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel