When playing a sound, the sound card plays a short repeated sound (it sounds like a screeching broken record). The lspci entry for the sound card is: 00:1f.5 Multimedia audio controller: Intel Corporation 82801BA/BAM AC'97 Audio Controller (rev 02) Subsystem: Dell Device 00c6 Flags: bus master, medium devsel, latency 0, IRQ 10 I/O ports at d800 [size=256] I/O ports at dc40 [size=64] Kernel driver in use: Intel ICH Kernel modules: snd-intel8x0 The system has some odd log messages: Jun 30 21:27:09 varda pulseaudio[2275]: alsa-util.c: snd_pcm_avail() returned a value that is exceptionally large: 4294954008 bytes (24347811 ms). Jun 30 21:27:09 varda pulseaudio[2275]: alsa-util.c: Most likely this is a bug in the ALSA driver 'snd_intel8x0'. Please report this issue to the ALSA developers. Removing pulseaudio was a successful workaround. After disabling pulseaudio and rebooting, sound played fine with ALSA.
The ALSA driver seems to overflow in snd_pcm_avail(), reassigning to kernel. Please paste data from alsa-info.sh --no-upload here.
Created attachment 351574 [details] output of my systems alsa-info For me latest koji kernel (2.6.29.6-213.fc11.i686.PAE) broke audio experience. It fails every few minutes with simple tasks like playing shoutcast stream with Amarok. Usualy KDE recovers after few seconds, but sometimes I have to kill PA and run it once again. Games (Nexuiz, UFO: AI) kill sound immidiately. Previous kernel (kernel-PAE-2.6.29.5-191.fc11.i686) doesn't cause any problems at all. Here's my alsa-info.
Created attachment 351575 [details] Messages log with lots of alsa related errors
I can confirm my problems start with 2.6.29.6-213.fc11.i686.PAE kernel, I've downgraded it to 2.6.29.6-211.fc11.i686.PAE and problem does not occur.
*** Bug 513451 has been marked as a duplicate of this bug. ***
In confirmation of previous comments: This problem does NOT occur with kernel-2.6.29.5-191.fc11.i586. This problem DOES occur with kernel-2.6.29.6-213.fc11.i586: sound is unusable !!!
*** Bug 513484 has been marked as a duplicate of this bug. ***
*** Bug 513763 has been marked as a duplicate of this bug. ***
Confirmation of bug on nVidia nforce AC97 implementation. lspci -vv info: 00:06.0 Multimedia audio controller: nVidia Corporation nForce3 250Gb AC'97 Audio Controller (rev a1) Subsystem: ASUSTeK Computer Inc. Device 812a Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 (500ns min, 1250ns max) Interrupt: pin A routed to IRQ 20 Region 0: I/O ports at e800 [size=256] Region 1: I/O ports at e400 [size=128] Region 2: Memory at ff6fb000 (32-bit, non-prefetchable) [size=4K] Capabilities: <access denied> Kernel driver in use: Intel ICH Kernel modules: snd-intel8x0 sound starts playing fine most of the time but crashes soon after that, sometimes sound is scrambled right away.
Additional info Jul 27 10:21:08 daan pulseaudio[2406]: alsa-sink.c: Increasing wakeup watermark to 30.00 ms Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: snd_pcm_avail() returned a value that is exceptionally large: 18446744073709519808 bytes (384307168036 ms). Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: Most likely this is a bug in the ALSA driver 'snd_intel8x0'. Please report this issue to the ALSA developers. Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: snd_pcm_dump(): Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: Hardware PCM card 0 'NVidia CK8S' device 0 subdevice 0 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: Its setup is: Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: stream : PLAYBACK Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: access : MMAP_INTERLEAVED Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: format : S16_LE Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: subformat : STD Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: channels : 2 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: rate : 48000 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: exact rate : 48000 (48000/1) Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: msbits : 16 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: buffer_size : 16384 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: period_size : 16384 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: period_time : 341333 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: tstamp_mode : ENABLE Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: period_step : 1 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: avail_min : 16384 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: period_event : 0 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: start_threshold : -1 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: stop_threshold : 4611686018427387904 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: silence_threshold: 0 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: silence_size : 0 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: boundary : 4611686018427387904 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: appl_ptr : 745232 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: hw_ptr : 720896 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: snd_pcm_delay() returned a value that is exceptionally large: 492224 bytes (2563 ms). Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: Most likely this is a bug in the ALSA driver 'snd_intel8x0'. Please report this issue to the ALSA developers. Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: snd_pcm_dump(): Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: Hardware PCM card 0 'NVidia CK8S' device 0 subdevice 0 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: Its setup is: Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: stream : PLAYBACK Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: access : MMAP_INTERLEAVED Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: format : S16_LE Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: subformat : STD Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: channels : 2 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: rate : 48000 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: exact rate : 48000 (48000/1) Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: msbits : 16 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: buffer_size : 16384 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: period_size : 16384 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: period_time : 341333 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: tstamp_mode : ENABLE Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: period_step : 1 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: avail_min : 16384 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: period_event : 0 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: start_threshold : -1 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: stop_threshold : 4611686018427387904 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: silence_threshold: 0 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: silence_size : 0 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: boundary : 4611686018427387904 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: appl_ptr : 846032 Jul 27 10:21:09 daan pulseaudio[2406]: alsa-util.c: hw_ptr : 722976 Jul 27 10:21:13 daan pulseaudio[2406]: ratelimit.c: 2700 events suppressed Jul 27 10:21:18 daan pulseaudio[2406]: ratelimit.c: 2899 events suppressed Jul 27 10:21:23 daan pulseaudio[2406]: ratelimit.c: 2292 events suppressed Jul 27 10:21:28 daan pulseaudio[2406]: ratelimit.c: 2896 events suppressed Jul 27 10:21:33 daan pulseaudio[2406]: ratelimit.c: 3108 events suppressed Jul 27 10:21:36 daan pulseaudio[2406]: cpulimit.c: Received request to terminate due to CPU overload.
Note that this problem also occurs with kernel 217 from koji on Dell Inspiron 8500.
Is this a duplicate of: https://bugzilla.redhat.com/show_bug.cgi?id=506075 ?
*** This bug has been marked as a duplicate of bug 506075 ***