[Vm-dev] Building (Linux) VM - with segfaults. that point to audio
Brad Fuller
bradallenfuller at gmail.com
Sat Nov 15 00:56:29 UTC 2008
Objective: I'm trying to build the VM out of the box, nothing fancy. I
want to use ALSA.
Problem: I'm getting segfaults when playing any audio object (from the
Objects>Multimedia panel)
I svn'd fresh source from the trunk, and followed the directions in
README.SVN [1]. I then moved to unix subdir and made. Everything went
fine, no errors and installed fine. Squeak seems to run fine.e.g. I
exercised the network retrieving the Universe packages.
However, when I start up an image and pull out any of the audio
objects, a segfault happens immediately:
Segmentation fault
17753728 [] in >playLoop
17753820 [] in Semaphore>critical:
17753544 BlockContext>ensure:
17753360 Semaphore>critical:
17720844 >playLoop
17720660 [] in >startPlayerProcessBufferSize:rate:stereo:sound:
17720752 [] in BlockContext>newProcess
Aborted
I get the same segfault using a command option:
$ squeak -vm sound=ALSA Squeak3.10.2-7179-basic.image
If I specify "none":
$ squeak -vm sound=none Squeak3.10.2-7179-basic.image
then no segfault, and of course, no sounds.
the plugin does exist in the squeak directory:
$ lsa /usr/local/lib/squeak/3.10-4
total 22540
4 drwxr-xr-x 2 root root 4096 2008-11-14 15:35 .
4 drwxr-xr-x 5 1000 1000 4096 2008-11-14 15:32 ..
28 -rwxr-xr-x 1 root root 26820 2008-11-14 15:32 AioPlugin
172 -rwxr-xr-x 1 root root 170451 2008-11-14 15:32 B3DAcceleratorPlugin
32 -rwxr-xr-x 1 root root 29332 2008-11-14 15:32 ClipboardExtendedPlugin
76 -rwxr-xr-x 1 root root 71250 2008-11-14 15:32 DBusPlugin
24 -rwxr-xr-x 1 root root 20934 2008-11-14 15:32 FileCopyPlugin
184 -rwxr-xr-x 1 root root 182395 2008-11-14 15:32 GStreamerPlugin
32 -rwxr-xr-x 1 root root 32161 2008-11-14 15:32 ImmX11Plugin
88 -rwxr-xr-x 1 root root 85971 2008-11-14 15:32 KedamaPlugin
140 -rwxr-xr-x 1 root root 138507 2008-11-14 15:32 KedamaPlugin2
44 -rwxr-xr-x 1 root root 44065 2008-11-14 15:32 MIDIPlugin
792 -rwxr-xr-x 1 root root 803221 2008-11-14 15:32 Mpeg3Plugin
24 -rwxr-xr-x 1 root root 23088 2008-11-14 15:32 npsqueak.so
36 -rwxr-xr-x 1 root root 36765 2008-11-14 15:32 PseudoTTYPlugin
144 -rwxr-xr-x 1 root root 142582 2008-11-14 15:32 RomePlugin
2472 -rwxr-xr-x 1 root root 2525072 2008-11-14 15:32 squeak
208 -rwxr-xr-x 1 root root 205337 2008-11-14 15:32 Squeak3D
17200 -rw-r--r-- 1 root root 17584742 2008-11-14 15:35 SqueakV39.sources
116 -rwxr-xr-x 1 root root 113755 2008-11-14 15:32 UnixOSProcessPlugin
20 -rwxr-xr-x 1 root root 17974 2008-11-14 15:32 UUIDPlugin
100 -rwxr-xr-x 1 root root 96184 2008-11-14 15:32 VideoForLinuxPlugin
112 -rwxr-xr-x 1 root root 110434 2008-11-14 15:32 vm-display-fbdev
28 -rwxr-xr-x 1 root root 26121 2008-11-14 15:32 vm-display-null
272 -rwxr-xr-x 1 root root 271778 2008-11-14 15:32 vm-display-X11
56 -rwxr-xr-x 1 root root 49985 2008-11-14 15:32 vm-sound-ALSA
20 -rwxr-xr-x 1 root root 16870 2008-11-14 15:32 vm-sound-null
84 -rwxr-xr-x 1 root root 79461 2008-11-14 15:32 vm-sound-OSS
28 -rwxr-xr-x 1 root root 25109 2008-11-14 15:32 XDisplayControlPlugin
I thought maybe it was because SoundPlugin was not there, but it's in:
$ ls src/vm/intplugins/SoundPlugin
SoundPlugin.c
and:
$ cat src/plugins.int
# Automatically generated makefile include for internal plugins
INTERNAL_PLUGINS = ADPCMCodecPlugin AsynchFilePlugin
BMPReadWriterPlugin B2DPlugin BitBltPlugin CroquetPlugin DSAPrims
ZipPlugin DropPlugin FFTPlugin FilePlugin FloatArrayPlugin
FloatMathPlugin GeniePlugin JPEGReadWriter2Plugin JPEGReaderPlugin
JoystickTabletPlugin Klatt LargeIntegers LocalePlugin Matrix2x3Plugin
MiscPrimitivePlugin RePlugin SecurityPlugin SerialPlugin SocketPlugin
SoundCodecPrims SoundGenerationPlugin SoundPlugin StarSqueakPlugin
SurfacePlugin
I assume it got built and is located internally in the vm proper.
Any ideas? I have a feeling I just missed something completely easy in
the setup.
Or, could this be because I'm running 64bit? Since everything else is working?
[1] the first instruction in README.SVN is incorrect. It should be: $
svn co http://squeakvm.org/svn/squeak/trunk squeak - .i.e. the path is
a bit wrong. Perhaps I should write up a bug?
(should these types of messages go to the squeak-vm list? I long-ago
unsubscribed to that since it had little traffic)
--
Brad Fuller
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