Curt,

maybe you were right and the sound system is responsible for the 
freezes... I got it to hang again while debugging and I saw this from a 
backtrace in gdb:

(gdb) backtrace
#0  slSamplePlayer::skip (this=0x9499798, nframes=1024) at sl.h:260
#1  0x08308cc1 in slPlayer::preempt (this=0x9499798, delay=1024)
    at slPlayer.cxx:51
#2  0x08307eef in slScheduler::realUpdate (this=0x8d71cf0, dump_first=0)
    at slScheduler.cxx:211
#3  0x082280fb in FGSoundMgr::update (this=0x8fb0310)
    at /usr/include/plib/sl.h:702
#4  0x08056878 in fgMainLoop () at ../../src/Main/globals.hxx:144
#5  0x0805788b in fgIdleFunction () at main.cxx:1327
#6  0x40090133 in idleWait () at eval.c:41
#7  0x0805d228 in main (argc=1, argv=0xbffff9e4) at main.cxx:1824
#8  0x40321627 in __libc_start_main (main=0x805d214 <main>, argc=1, 
    ubp_av=0xbffff9e4, init=0x804dd14 <_init>, fini=0x835a890 <_fini>, 
    rtld_fini=0x4000dcd4 <_dl_fini>, stack_end=0xbffff9dc)
    at ../sysdeps/generic/libc-start.c:129


Regards,

Flavio.


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