Re: [Alsa-user] [alsa-devel] Crash 2.6.32.x, Echo 3G, Alsa, SCSI

From: F. Heitkamp
Date: Thu Jun 17 2010 - 08:18:11 EST


On 06/02/10 18:08, Giuliano Pochini wrote:
On Tue, 01 Jun 2010 08:25:35 -0400
"F. Heitkamp"<heitkamp@xxxxxxxxxxxxx> 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

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