This is what I did: - installed Debian Bullseye from 18 CDs - installed the minimum amount of stuff I thought I needed but still not enough... - ran blds/bld_prepare.sh debian to install the rest of necessary packages - executed ./bld.sh and there were no errors - built with the debugger - Cinelerra comes up successfully - a video .mov file with no audio loads successfully - a .jpg fails and backtrace below - a big buck bunny .mkv file fails and backtrace below Just Loading a x.jpg file: -------------------------- Thread 48 "ci" received signal SIG32, Real-time event 32. [Switching to Thread 0x94afdb40 (LWP 23149)] 0xb7fd2559 in __kernel_vsyscall () (gdb) bt #0 0xb7fd2559 in __kernel_vsyscall () #1 0xb75c03ed in __GI___clock_nanosleep_time64 (clock_id=<optimized out>, flags=0, req=0x94afd1cc, rem=0x94afd1dc) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:52 #2 0xb75c04be in __GI___clock_nanosleep (clock_id=0, flags=0, req=0x94afd238, rem=0x0) at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:92 #3 0xb75c6a20 in __GI___nanosleep (requested_time=0x94afd238, remaining=0x0) at nanosleep.c:27 #4 0x00d83dbc in Timer::delay (milliseconds=1500) at bctimer.C:100 #5 0x00d97d45 in BC_Repeater::run (this=0x5e2f3e0) at bcrepeater.C:172 #6 0x00d832da in Thread::entrypoint (parameters=0x5e2f3e0) at thread.C:68 #7 0xb7c920b4 in start_thread (arg=<optimized out>) at pthread_create.c:477 #8 0xb7600296 in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:108 Just loading bigbuckbunny...mxf ------------------------------- Thread 19 "ci" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0xa44fab40 (LWP 23194)] BC_Xfer::xfer_rgb888_to_rgb888 (this=0xa44f9ffc, y0=<optimized out>, y1=64) at xfer_bc_rgb888.C:38 38 int r = *inp++, g = *inp++, b = *inp++; (gdb) bt #0 BC_Xfer::xfer_rgb888_to_rgb888 (this=0xa44f9ffc, y0=<optimized out>, y1=64) at xfer_bc_rgb888.C:38 #1 0x00d95c45 in BC_Xfer::xfer_slices (this=0xa44f9ffc, slices=1) at ../bcxfer.C:304 #2 0x00d9609a in BC_Xfer::xfer (this=0xa44f9ffc) at xfer.C:840 #3 BC_CModels::transfer (output_ptrs=0x96311760, out_colormodel=9, out_x=0, out_y=0, out_w=64, out_h=64, out_rowspan=192, input_ptrs=0x96300d30, in_colormodel=9, in_x=0, in_y=0, in_w=808, in_h=808, in_rowspan=2424, bg_color=0) at ../bcxfer.C:205 #4 0x00d8a099 in VFrame::transfer_from (this=0x96311690, that=0x963007a0, bg_color=0, in_x=0, in_y=0, in_w=808, in_h=808) at vframe.C:1236 #5 0x009c115f in VFrame::transfer_from (this=0x96311690, frame=0x963007a0, bg_color=0) at /mnt0/cintoday/cinelerra-5.1/cinelerra/../guicast/vframe.h:147 #6 0x00c1b3aa in ResourceVideoThread::do_video (this=0x583a130, item=0x5a986a0) at resourcethread.C:428 #7 0x00c1b01e in ResourceVideoThread::draw_item (this=0x583a130, item=0x5a986a0) at resourcethread.C:351 #8 0x00c1ad78 in ResourceThreadBase::run (this=0x583a130) at resourcethread.C:303 #9 0x00d832da in Thread::entrypoint (parameters=0x583a130) at thread.C:68 #10 0xb7c920b4 in start_thread (arg=<optimized out>) at pthread_create.c:477 #11 0xb7600296 in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:108 is=0x583a130) at resourcethread.C:303