Package: alsa-base Version: 1.0.23+dfsg-2 Severity: normal
I have been trying to get upmixing+dmix working, and have tried various complex config's from the web, and these cause consistent segfaults, which suggests a serious bug (none of the configs is particularly unusual). I have managed to reduce the config file somewhat... One of the originals was the second config here: http://ds.mcbf.net/wiki/DotAsoundrc All applications using alsa (e.g. the speaker tester program and ogg123) segfault consistently with dmixer enabled as below. Commenting out the "bindings" section solves the segfault, but then upmix_21to51 (what I was originally trying to do) will fail: ALSA lib pcm_params.c:2150:(snd1_pcm_hw_refine_slave) Slave PCM not usable ERROR: Cannot open device alsa. To test the segfault: Set .asoundrc as below. Test with "ogg123 -d alsa -o dev:dmixer <ogg file to play>" This also segfaults with other alsa applications, e.g. speaker-test. I think this is alsa-base but it might be plugins; it's in dmix anyway. pcm.dmixer { type dmix ipc_key 4821 ipc_key_add_uid false ipc_perm 0660 slave { pcm "hw:0" rate 48000 channels 6 period_time 0 period_size 1024 buffer_time 0 buffer_size 65535 } bindings { 0 0 1 1 2 2 3 3 4 4 5 5 } } pcm.upmix_21to51 { type plug slave.pcm "dmixer" slave.channels 6 ttable { 0.0 1 # front left 1.1 1 # front right 0.2 1 # rear left 1.3 1 # rear right 0.4 0.5 # center 1.4 0.5 # center 2.5 1 # subwoofer } } -- Package-specific info: --- Begin additional package status --- Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Description +++-==============-==============-============================================ ii libasound2 1.0.23-2.1 shared library for ALSA applications --- End additional package status --- --- Begin /proc/asound/version --- Advanced Linux Sound Architecture Driver Version 1.0.21. --- End /proc/asound/version --- --- Begin /proc/asound/cards --- 0 [CA0106 ]: CA0106 - CA0106 Audigy SE [SB0570] at 0xcc00 irq 21 --- End /proc/asound/cards --- --- Begin /dev/snd/ listing --- total 0 drwxr-xr-x 2 root root 60 Jul 1 19:07 by-path crw-rw----+ 1 root audio 116, 13 Jul 1 19:07 controlC0 crw-rw----+ 1 root audio 116, 4 Jul 1 19:07 midiC0D0 crw-rw----+ 1 root audio 116, 12 Jul 1 19:07 pcmC0D0c crw-rw----+ 1 root audio 116, 11 Jul 1 19:15 pcmC0D0p crw-rw----+ 1 root audio 116, 10 Jul 1 19:07 pcmC0D1c crw-rw----+ 1 root audio 116, 9 Jul 1 19:07 pcmC0D1p crw-rw----+ 1 root audio 116, 8 Jul 1 19:07 pcmC0D2c crw-rw----+ 1 root audio 116, 7 Jul 1 19:07 pcmC0D2p crw-rw----+ 1 root audio 116, 6 Jul 1 19:07 pcmC0D3c crw-rw----+ 1 root audio 116, 5 Jul 1 19:07 pcmC0D3p crw-rw----+ 1 root audio 116, 3 Jul 1 19:07 seq crw-rw----+ 1 root audio 116, 2 Jul 1 19:07 timer --- End /dev/snd/ listing --- -- System Information: Debian Release: 6.0.5 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 2.6.32-5-amd64 (SMP w/6 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Versions of packages alsa-base depends on: ii linux-sound-base 1.0.23+dfsg-2 base package for ALSA and OSS soun ii lsof 4.81.dfsg.1-1 List open files ii module-init-tools 3.12-2 tools for managing Linux kernel mo ii udev 164-3 /dev/ and hotplug management daemo Versions of packages alsa-base recommends: ii alsa-utils 1.0.23-3 Utilities for configuring and usin Versions of packages alsa-base suggests: ii alsa-oss 1.0.17-4 ALSA wrapper for OSS applications pn apmd <none> (no description available) ii oss-compat 0.0.4+nmu3 OSS compatibility package Versions of packages libasound2 depends on: ii libc6 2.11.3-3 Embedded GNU C Library: Shared lib -- Configuration Files: /etc/modprobe.d/alsa-base-blacklist.conf changed: blacklist snd-hda-intel blacklist snd-pcsp /etc/modprobe.d/alsa-base.conf changed: install sound-slot-0 /sbin/modprobe snd-card-0 install sound-slot-1 /sbin/modprobe snd-card-1 install sound-slot-2 /sbin/modprobe snd-card-2 install sound-slot-3 /sbin/modprobe snd-card-3 install sound-slot-4 /sbin/modprobe snd-card-4 install sound-slot-5 /sbin/modprobe snd-card-5 install sound-slot-6 /sbin/modprobe snd-card-6 install sound-slot-7 /sbin/modprobe snd-card-7 install snd /sbin/modprobe --ignore-install snd && { /sbin/modprobe --quiet snd-ioctl32 ; /sbin/modprobe --quiet snd-seq ; } install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi && { /sbin/modprobe --quiet snd-seq-midi ; : ; } install snd-emu10k1 /sbin/modprobe --ignore-install snd-emu10k1 && { /sbin/modprobe --quiet snd-emu10k1-synth ; : ; } options bt87x index=-2 options cx88_alsa index=-2 options snd-atiixp-modem index=-2 options snd-intel8x0m index=-2 options snd-via82xx-modem index=-2 options snd-pcsp index=-2 -- debconf-show failed -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
