From: F. Heitkamp on
On 05/31/10 16:59, Giuliano Pochini wrote:
> On Mon, 31 May 2010 15:05:08 -0400
> "F. Heitkamp"<heitkamp(a)ameritech.net> wrote:
>
>
>> On 02/02/10 17:09, Giuliano Pochini wrote:
>>
>>> On Tue, 02 Feb 2010 16:30:27 +0100
>>> Clemens Ladisch<clemens(a)ladisch.de> wrote:
>>>
>>>
>>>
>>>> Frederick V Heitkamp wrote:
>>>>
>>>>
>>>>> Repeatable Hard Crash.
>>>>> What else do I need to provide?
>>>>>
> [...]
>
>>> Signed-off-by: Giuliano Pochini<pochini(a)shiny.it>
>>>
>>> --- alsa-driver-1.0.22.1/alsa-kernel/pci/echoaudio/echoaudio.c__orig 2010-02-02 22:37:33.000000000 +0100
>>> +++ alsa-driver-1.0.22.1/alsa-kernel/pci/echoaudio/echoaudio.c 2010-02-02 22:44:03.000000000 +0100
>>> @@ -1821,7 +1821,9 @@ static irqreturn_t snd_echo_interrupt(in
>>> /* The hardware doesn't tell us which substream caused the irq,
>>> thus we have to check all running substreams. */
>>> for (ss = 0; ss< DSP_MAXPIPES; ss++) {
>>> - if ((substream = chip->substream[ss])) {
>>> + substream = chip->substream[ss];
>>> + if (substream&& ((struct audiopipe *)substream->runtime->
>>> + private_data)->state == PIPE_STATE_STARTED) {
>>> period = pcm_pointer(substream) /
>>> substream->runtime->period_size;
>>> if (period != chip->last_period[ss]) {
>>>
>>>
>>>
>>>
>> I've tried some newer kernels. Still having problems with the echo 3G.
>> This is kernel version:
>> 2.6.32.13. The above patches posted to the linux kernel list seemed to
>> get rid of the crashes, but evidently did not go into the main kernel tree.
>>
> Indeed. I've just checked 2.6.33 and the patch isn't there. It's in 2.6.34.
>
> If you need 2.6.32.13 you can apply the above patch to the kernel tree or
> download ftp://ftp.alsa-project.org/pub/driver/alsa-driver-1.0.23.tar.bz2,
> otherwise just use the latest kernel.
>
I tried 2.6.34. I have jack 1.9..5 installed. I was able to use
rhythmbox to play mp3s. I could not use the echomixer app. It complained
about a channels mismatch.

My goal is to be able to plug in a MIDI keyboard, or USB guitar
interface and play along with songs etc.

I plugged in a MIDI keyboard, "/proc/asound/cards" showed the keyboard
was recognized. The keyboard has a USB and MIDI interface.
I am not sure if they both work at the same time. I had the MIDI cable
plugged into the Gina3G, but I could not tell if the keyboard was
recognized.
I compiled csound5. When I engaged it the system immediately froze and
started spitting out:

5831.768583] set_audio_format[0] = 86
[ 5831.768610] pcm_trigger start
[ 5831.768611] start_transport 4001
[ 5831.790538] pcm_trigger stop
[ 5831.790539] stop_transport 4001
[ 5831.790576] Prepare rate=48000 format=10 channels=2
[ 5831.790578] set_audio_format[14] = 7
[ 5831.790579] Prepare rate=48000 format=10 channels=6
[ 5831.790580] set_audio_format[0] = 86
[ 5831.790608] pcm_trigger start
[ 5831.790609] start_transport 4001
[ 5831.812538] pcm_trigger stop
[ 5831.812540] stop_transport 4001
[ 5831.812576] Prepare rate=48000 format=10 channels=2
[ 5831.812577] set_audio_format[14] = 7
[ 5831.812578] Prepare rate=48000 format=10 channels=6
[ 5831.812580] set_audio_format[0] = 86
[ 5831.812607] pcm_trigger start
[ 5831.812608] start_transport 4001
[ 5831.834537] pcm_trigger stop
[ 5831.834539] stop_transport 4001
[ 5831.834576] Prepare rate=48000 format=10 channels=2
[ 5831.834577] set_audio_format[14] = 7
[ 5831.834579] Prepare rate=48000 format=10 channels=6
[ 5831.834580] set_audio_format[0] = 86
[ 5831.834607] pcm_trigger start
[ 5831.834608] start_transport 4001
[ 5831.856536] pcm_trigger stop
[ 5831.856538] stop_transport 4001
[ 5831.856574] Prepare rate=48000 format=10 channels=2
[ 5831.856576] set_audio_format[14] = 7
[ 5831.856577] Prepare rate=48000 format=10 channels=6
[ 5831.856579] set_audio_format[0] = 86
[ 5831.856606] pcm_trigger start
[ 5831.856607] start_transport 4001
[ 5831.878536] pcm_trigger stop
[ 5831.878538] stop_transport 4001
[ 5831.878575] Prepare rate=48000 format=10 channels=2
[ 5831.878576] set_audio_format[14] = 7
[ 5831.878578] Prepare rate=48000 format=10 channels=6
[ 5831.878579] set_audio_format[0] = 86
[ 5831.878606] pcm_trigger start
[ 5831.878607] start_transport 4001
[ 5831.900535] pcm_trigger stop
[ 5831.900537] stop_transport 4001
[ 5831.900575] Prepare rate=48000 format=10 channels=2
[ 5831.900576] set_audio_format[14] = 7
[ 5831.900578] Prepare rate=48000 format=10 channels=6
[ 5831.900579] set_audio_format[0] = 86
[ 5831.900606] pcm_trigger start
[ 5831.900607] start_transport 4001
[ 5831.922535] pcm_trigger stop
[ 5831.922537] stop_transport 4001
[ 5831.922576] Prepare rate=48000 format=10 channels=2
[ 5831.922578] set_audio_format[14] = 7
[ 5831.922579] Prepare rate=48000 format=10 channels=6
[ 5831.922580] set_audio_format[0] = 86
[ 5831.922608] pcm_trigger start
[ 5831.922609] start_transport 4001
[ 5831.944535] pcm_trigger stop
[ 5831.944537] stop_transport 4001
[ 5831.944575] Prepare rate=48000 format=10 channels=2
[ 5831.944576] set_audio_format[14] = 7
[ 5831.944578] Prepare rate=48000 format=10 channels=6
[ 5831.944579] set_audio_format[0] = 86
[ 5831.944607] pcm_trigger start
[ 5831.944608] start_transport 4001
[ 5831.966536] pcm_trigger stop
[ 5831.966538] stop_transport 4001
[ 5831.966576] Prepare rate=48000 format=10 channels=2
[ 5831.966578] set_audio_format[14] = 7
[ 5831.966579] Prepare rate=48000 format=10 channels=6
[ 5831.966580] set_audio_format[0] = 86
[ 5831.966609] pcm_trigger start
[ 5831.966610] start_transport 4001
[ 5831.988533] pcm_trigger stop
[ 5831.988535] stop_transport 4001
[ 5831.988572] Prepare rate=48000 format=10 channels=2
[ 5831.988574] set_audio_format[14] = 7
[ 5831.988576] Prepare rate=48000 format=10 channels=6
[ 5831.988577] set_audio_format[0] = 86
[ 5831.988604] pcm_trigger start
[ 5831.988605] start_transport 4001
[ 5832.010532] pcm_trigger stop
[ 5832.010534] stop_transport 4001
[ 5832.010572] Prepare rate=48000 format=10 channels=2
[ 5832.010574] set_audio_format[14] = 7
[ 5832.010575] Prepare rate=48000 format=10 channels=6
[ 5832.010576] set_audio_format[0] = 86
[ 5832.010604] pcm_trigger start
[ 5832.010605] start_transport 4001
[ 5832.032531] pcm_trigger stop
[ 5832.032533] stop_transport 4001
[ 5832.032569] Prepare rate=48000 format=10 channels=2
[ 5832.032570] set_audio_format[14] = 7
[ 5832.032572] Prepare rate=48000 format=10 channels=6
[ 5832.032573] set_audio_format[0] = 86
[ 5832.032600] pcm_trigger start
[ 5832.032601] start_transport 4001
[ 5832.054532] pcm_trigger stop
[ 5832.054534] stop_transport 4001
[ 5832.054571] Prepare rate=48000 format=10 channels=2
[ 5832.054573] set_audio_format[14] = 7
[ 5832.054574] Prepare rate=48000 format=10 channels=6
[ 5832.054575] set_audio_format[0] = 86
[ 5832.054602] pcm_trigger start
[ 5832.054603] start_transport 4001
[ 5832.076529] pcm_trigger stop
[ 5832.076531] stop_transport 4001
[ 5832.076567] Prepare rate=48000 format=10 channels=2
[ 5832.076568] set_audio_format[14] = 7
[ 5832.076570] Prepare rate=48000 format=10 channels=6
[ 5832.076571] set_audio_format[0] = 86
[ 5832.076598] pcm_trigger start
[ 5832.076599] start_transport 4001
[ 5832.098530] pcm_trigger stop
[ 5832.098532] stop_transport 4001
[ 5832.098568] Prepare rate=48000 format=10 channels=2
[ 5832.098569] set_audio_format[14] = 7
[ 5832.098570] Prepare rate=48000 format=10 channels=6
[ 5832.098571] set_audio_format[0] = 86
[ 5832.098599] pcm_trigger start
[ 5832.098600] start_transport 4001
[ 5832.120532] pcm_trigger stop
[ 5832.120533] stop_transport 4001
[ 5832.120573] Prepare rate=48000 format=10 channels=2
[ 5832.120575] set_audio_format[14] = 7
[ 5832.120576] Prepare rate=48000 format=10 channels=6
[ 5832.120577] set_audio_format[0] = 86
[ 5832.120606] pcm_trigger start
[ 5832.120607] start_transport 4001
[ 5832.142529] pcm_trigger stop
[ 5832.142530] stop_transport 4001
[ 5832.142569] Prepare rate=48000 format=10 channels=2
[ 5832.142570] set_audio_format[14] = 7
[ 5832.142571] Prepare rate=48000 format=10 channels=6
[ 5832.142573] set_audio_format[0] = 86
[ 5832.142600] pcm_trigger start
[ 5832.142601] start_transport 4001
[ 5832.164529] pcm_trigger stop
[ 5832.164530] stop_transport 4001
[ 5832.164568] Prepare rate=48000 format=10 channels=2
[ 5832.164569] set_audio_format[14] = 7
[ 5832.164571] Prepare rate=48000 format=10 channels=6
[ 5832.164572] set_audio_format[0] = 86
[ 5832.164599] pcm_trigger start
[ 5832.164600] start_transport 4001
[ 5832.186528] pcm_trigger stop
[ 5832.186529] stop_transport 4001
[ 5832.186567] Prepare rate=48000 format=10 channels=2
[ 5832.186568] set_audio_format[14] = 7
[ 5832.186570] Prepare rate=48000 format=10 channels=6
[ 5832.186571] set_audio_format[0] = 86
[ 5832.186601] pcm_trigger start
[ 5832.186602] start_transport 4001
[ 5832.208527] pcm_trigger stop
[ 5832.208528] stop_transport 4001
[ 5832.208564] Prepare rate=48000 format=10 channels=2
[ 5832.208566] set_audio_format[14] = 7
[ 5832.208567] Prepare rate=48000 format=10 channels=6
[ 5832.208569] set_audio_format[0] = 86
[ 5832.208596] pcm_trigger start
[ 5832.208597] start_transport 4001
[ 5832.230526] pcm_trigger stop
[ 5832.230527] stop_transport 4001
[ 5832.230565] Prepare rate=48000 format=10 channels=2
[ 5832.230566] set_audio_format[14] = 7
[ 5832.230567] Prepare rate=48000 format=10 channels=6
[ 5832.230568] set_audio_format[0] = 86
[ 5832.230596] pcm_trigger start
[ 5832.230597] start_transport 4001
[ 5832.252545] pcm_trigger stop
[ 5832.252547] stop_transport 4001
[ 5832.252583] Prepare rate=48000 format=10 channels=2
[ 5832.252584] set_audio_format[14] = 7
[ 5832.252586] Prepare rate=48000 format=10 channels=6
[ 5832.252587] set_audio_format[0] = 86
[ 5832.252614] pcm_trigger start
[ 5832.252615] start_transport 4001
[ 5832.274524] pcm_trigger stop
[ 5832.274526] stop_transport 4001
[ 5832.274561] Prepare rate=48000 format=10 channels=2
[ 5832.274563] set_audio_format[14] = 7
[ 5832.274564] Prepare rate=48000 format=10 channels=6
[ 5832.274565] set_audio_format[0] = 86
[ 5832.274593] pcm_trigger start
[ 5832.274594] start_transport 4001
[ 5832.296536] pcm_trigger stop
[ 5832.296538] stop_transport 4001
[ 5832.296576] Prepare rate=48000 format=10 channels=2
[ 5832.296577] set_audio_format[14] = 7
[ 5832.296578] Prepare rate=48000 format=10 channels=6
[ 5832.296579] set_audio_format[0] = 86
[ 5832.296606] pcm_trigger start
[ 5832.296607] start_transport 4001
[ 5832.318525] pcm_trigger stop
[ 5832.318527] stop_transport 4001
[ 5832.318566] Prepare rate=48000 format=10 channels=2
[ 5832.318567] set_audio_format[14] = 7
[ 5832.318569] Prepare rate=48000 format=10 channels=6
[ 5832.318570] set_audio_format[0] = 86
[ 5832.318598] pcm_trigger start
[ 5832.318599] start_transport 4001
[ 5832.340523] pcm_trigger stop
[ 5832.340524] stop_transport 4001
[ 5832.340563] Prepare rate=48000 format=10 channels=2
[ 5832.340564] set_audio_format[14] = 7
[ 5832.340566] Prepare rate=48000 format=10 channels=6
[ 5832.340567] set_audio_format[0] = 86
[ 5832.340594] pcm_trigger start
[ 5832.340595] start_transport 4001
[ 5832.362522] pcm_trigger stop
[ 5832.362524] stop_transport 4001
[ 5834.003252] SysRq : Terminate All Tasks
[ 5846.410995] pcm_close
[ 5846.410997] pcm_close oc=2 cs=0 rs=1
[ 5846.410998] pcm_close2 oc=2 cs=0 rs=1
[ 5846.449499] Prepare rate=48000 format=10 channels=2
[ 5846.473577] set_audio_format[14] = 7
[ 5846.484293] Prepare rate=48000 format=10 channels=6
[ 5846.503645] set_audio_format[0] = 86
[ 5846.514449] pcm_trigger start
[ 5846.515307] start_transport 4001
[ 5846.533291] pcm_trigger stop
[ 5846.534001] stop_transport 4001
[ 5846.567444] pcm_hw_free(14)
[ 5846.568002] free_pipes: Pipe 14
[ 5846.585146] pcm_hw_freed
[ 5846.592757] pcm_hw_freed
[ 5846.600307] pcm_close
[ 5846.607086] pcm_close oc=1 cs=0 rs=1
[ 5846.618528] pcm_close2 oc=1 cs=1 rs=1
[ 5846.630021] pcm_hw_free(0)
[ 5846.631001] free_pipes: Pipe 0
[ 5846.647193] pcm_hw_freed
[ 5846.654751] pcm_hw_freed
[ 5846.662303] pcm_close
[ 5846.669072] pcm_close oc=0 cs=1 rs=1
[ 5846.680516] pcm_close2 oc=0 cs=1 rs=0
[ 5846.706051] uhci_hcd 0000:00:1d.2: release dev 4 ep81-INT, period 8,
phase 4s
[ 5846.783378] [drm] Resetting GPU

>
>

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo(a)vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
From: Giuliano Pochini on
On Tue, 01 Jun 2010 08:25:35 -0400
"F. Heitkamp" <heitkamp(a)ameritech.net> wrote:

> >> I've tried some newer kernels. Still having problems with the echo 3G.
> >> This is kernel version:
> >> 2.6.32.13. The above patches posted to the linux kernel list seemed to
> >> get rid of the crashes, but evidently did not go into the main kernel tree.
> >>
> > Indeed. I've just checked 2.6.33 and the patch isn't there. It's in 2.6.34.
> >
> > If you need 2.6.32.13 you can apply the above patch to the kernel tree or
> > download ftp://ftp.alsa-project.org/pub/driver/alsa-driver-1.0.23.tar.bz2,
> > otherwise just use the latest kernel.
> >
> I tried 2.6.34. I have jack 1.9..5 installed. I was able to use
> rhythmbox to play mp3s. I could not use the echomixer app. It complained
> about a channels mismatch.

I'm running 2.6.34 now. Both a very old version of echomixer (2005!) and
the latest version I just compiled from alsa-tools-1.0.23 work fine with my
Gina3G. Please quote the error message.


> My goal is to be able to plug in a MIDI keyboard, or USB guitar
> interface and play along with songs etc.
>
> I plugged in a MIDI keyboard, "/proc/asound/cards" showed the keyboard
> was recognized. The keyboard has a USB and MIDI interface.
> I am not sure if they both work at the same time. I had the MIDI cable
> plugged into the Gina3G, but I could not tell if the keyboard was
> recognized.
> I compiled csound5. When I engaged it the system immediately froze and
> started spitting out:
> [...]

Ok, I compiled csound, but I don't know how to use it. How can I reproduce
the problem ?


--
Giuliano.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo(a)vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
From: F. Heitkamp on
On 06/02/10 18:08, Giuliano Pochini wrote:
> On Tue, 01 Jun 2010 08:25:35 -0400
> "F. Heitkamp"<heitkamp(a)ameritech.net> wrote:
>
>>>> I've tried some newer kernels. Still having problems with the echo 3G.
>>>> This is kernel version:
>>>> 2.6.32.13. The above patches posted to the linux kernel list seemed to
>>>> get rid of the crashes, but evidently did not go into the main kernel tree.
>>>>
>>> Indeed. I've just checked 2.6.33 and the patch isn't there. It's in 2.6.34.
>>>
>>> If you need 2.6.32.13 you can apply the above patch to the kernel tree or
>>> download ftp://ftp.alsa-project.org/pub/driver/alsa-driver-1.0.23.tar.bz2,
>>> otherwise just use the latest kernel.
>>>
>> I tried 2.6.34. I have jack 1.9..5 installed. I was able to use
>> rhythmbox to play mp3s. I could not use the echomixer app. It complained
>> about a channels mismatch.
> I'm running 2.6.34 now. Both a very old version of echomixer (2005!) and
> the latest version I just compiled from alsa-tools-1.0.23 work fine with my
> Gina3G. Please quote the error message.
>
>
>> My goal is to be able to plug in a MIDI keyboard, or USB guitar
>> interface and play along with songs etc.
>>
>> I plugged in a MIDI keyboard, "/proc/asound/cards" showed the keyboard
>> was recognized. The keyboard has a USB and MIDI interface.
>> I am not sure if they both work at the same time. I had the MIDI cable
>> plugged into the Gina3G, but I could not tell if the keyboard was
>> recognized.
>> I compiled csound5. When I engaged it the system immediately froze and
>> started spitting out:
>> [...]
> Ok, I compiled csound, but I don't know how to use it. How can I reproduce
> the problem ?
>
Sorry I took so long to get back to you.
It turns out Csound is not related to the problem.

In this case I am only using kernel 2.6.33.5-rt23-amd64, alsa lib 1.0.2,
but 2.6.34 does it too.
I bring up firefox. Web pages attempt to play sound. The kernel
begans doing:

[ 2879.766331] allocate_pipes: ch=1 int=2
[ 2879.766332] allocate_pipes: channel already open
[ 2879.766333] allocate_pipes(1) err=-11
[ 2879.766334] pcm_hw_freed
[ 2.821190] pcm_analog_out_open cs=0 oc=2 r=44100
[ 2879.821266] allocate_pipes: ch=1 int=2
[ 2879.821267] allocate_pipes: channel already open

,infinitely. The system is unusable at this point and I have to
Alt-SysRq-k to get back in.

Let me know what other information to provide.

Here is hwinfo on the system:
cpu:
Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz,
2400 MHz
Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz,
2400 MHz
keyboard:
/dev/input/input0 EzKEY USB-compliant keyboard
printer:
HP deskjet 5600
graphics card:
PC Partner VGA compatible controller
sound:
PC Partner Audio device
storage:
LSI Logic / Symbios Logic 53c1030 PCI-X
Fusion-MPT Dual Ultra320 SCSI
LSI Logic / Symbios Logic 53c1030 PCI-X
Fusion-MPT Dual Ultra320 SCSI
Intel 82801G (ICH7 Family) IDE Controller
network:
eth1 Tyan 82573E Gigabit Ethernet Controller (Copper)
eth0 Tyan 82573E Gigabit Ethernet Controller (Copper)
network interface:
eth1 Ethernet network interface
eth0 Ethernet network interface
lo Loopback network interface
usb controller:
Intel 82801G (ICH7 Family) USB2 EHCI Controller
Intel 82801G (ICH7 Family) USB UHCI #4
Intel 82801G (ICH7 Family) USB UHCI #3
Intel 82801G (ICH7 Family) USB UHCI #2
Intel 82801G (ICH7 Family) USB UHCI #1
bios:
BIOS
bridge:
Texas Instruments PCI bridge
Intel 6702PXH PCI Express-to-PCI Bridge A
Intel 82801GB/GR (ICH7 Family) LPC Interface Bridge
Intel 82801 PCI Bridge
Intel 82801GR/GH/GHM (ICH7 Family) PCI Express
Port 6
Intel 82801GR/GH/GHM (ICH7 Family) PCI Express
Port 5
Intel 82801G (ICH7 Family) PCI Express Port 1
Intel 975X Express PCI Express Root Port
Intel E7230 PCI Express Root Port
Intel E7230 Memory Controller Hub
hub:
ATEN International Hub
Linux 2.6.33.5-rt23-amd64 uhci_hcd UHCI Host
Controller
Linux 2.6.33.5-rt23-amd64 uhci_hcd UHCI Host
Controller
Linux 2.6.33.5-rt23-amd64 uhci_hcd UHCI Host
Controller
Linux 2.6.33.5-rt23-amd64 uhci_hcd UHCI Host
Controller
Linux 2.6.33.5-rt23-amd64 ehci_hcd EHCI Host
Controller
memory:
Main Memory
firewire controller:
Timedia TSB82AA2 IEEE-1394b Link Layer Controller
unknown:
FPU
DMA controller
PIC
Timer
Keyboard controller
/dev/lp0 Parallel controller
Echo Digital Audio 3G
Intel 82801G (ICH7 Family) SMBus Controller
PnP Unclassified device
PnP Unclassified device
PnP Unclassified device
Unclassified device
PnP Unclassified device
PnP Unclassified device
PnP Unclassified device
PnP Unclassified device
PnP Unclassified device
PnP Unclassified device
PnP Unclassified device
PnP Unclassified device
Serial controller
/dev/input/input2 Logitech Trackball
/dev/input/input1 EzKEY USB-compliant keyboard
Belkin UPS

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo(a)vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
From: Giuliano Pochini on
On Thu, 17 Jun 2010 08:11:06 -0400
"F. Heitkamp" <heitkamp(a)ameritech.net> wrote:

> >> My goal is to be able to plug in a MIDI keyboard, or USB guitar
> >> interface and play along with songs etc.
> >>
> >> I plugged in a MIDI keyboard, "/proc/asound/cards" showed the keyboard
> >> was recognized. The keyboard has a USB and MIDI interface.
> >> I am not sure if they both work at the same time. I had the MIDI cable
> >> plugged into the Gina3G, but I could not tell if the keyboard was
> >> recognized.
> >> I compiled csound5. When I engaged it the system immediately froze and
> >> started spitting out:
> >> [...]
> > Ok, I compiled csound, but I don't know how to use it. How can I reproduce
> > the problem ?
> >
> Sorry I took so long to get back to you.
> It turns out Csound is not related to the problem.
>
> In this case I am only using kernel 2.6.33.5-rt23-amd64, alsa lib 1.0.2,
> but 2.6.34 does it too.
> I bring up firefox. Web pages attempt to play sound. The kernel
> begans doing:
>
> [ 2879.766331] allocate_pipes: ch=1 int=2
> [ 2879.766332] allocate_pipes: channel already open
> [ 2879.766333] allocate_pipes(1) err=-11
> [ 2879.766334] pcm_hw_freed
> [ 2.821190] pcm_analog_out_open cs=0 oc=2 r=44100
> [ 2879.821266] allocate_pipes: ch=1 int=2
> [ 2879.821267] allocate_pipes: channel already open
>
> ,infinitely. The system is unusable at this point and I have to
> Alt-SysRq-k to get back in.
>
> Let me know what other information to provide.

Perhaps is it related with the OSS emulation ? Do you know if the browser
plays the sound itself or if it is using an external program or plugin ?


--
Giuliano.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo(a)vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/