Comment 2 for bug 71795

This is a backtrace generated with a copy of xscreensaver 4.24-4ubuntu2.1 built with debug info enabled. It was executed as "glhanoi -count 96", as described above. This is on Edgy.

The output from glhanoi is:

glhanoi: glhanoi.c:504: update_glhanoi: Assertion `disk != ((void *)0)' failed.
Aborted (core dumped)

#0 0xffffe410 in __kernel_vsyscall ()
#1 0xb7b6a770 in raise () from /lib/tls/i686/cmov/libc.so.6
#2 0xb7b6bef3 in abort () from /lib/tls/i686/cmov/libc.so.6
#3 0xb7b63dbb in __assert_fail () from /lib/tls/i686/cmov/libc.so.6
#4 0x0804da61 in update_glhanoi () at glhanoi.c:504
#5 0x0804daca in draw_glhanoi (mi=0xbf90448c) at glhanoi.c:1394
#6 0x080501b6 in xlockmore_screenhack (dpy=0x80627a0, window=69206018, want_writable_colors=0, want_uniform_colors=0, want_smooth_colors=0,
    want_bright_colors=0, event_mask=64, hack_init=0x804d580 <init_glhanoi>, hack_draw=0x804da70 <draw_glhanoi>, hack_reshape=0x804afb0 <reshape_glhanoi>,
    hack_handle_events=0x804ace0 <glhanoi_handle_event>, hack_free=0) at xlockmore.c:444
#7 0x0804dbb8 in screenhack (dpy=0x80627a0, window=69206018) at ./../xlockmore.h:158
#8 0x0804e6c4 in main (argc=Cannot access memory at address 0x6
) at ./../screenhack.c:679