[BRLTTY] BRLTTY dies after S/Vario power down

[Jason White]

I found the illusive core file, in /usr/local/etc/brltty.

To recapitulate: this is an attempt to debug crashes that occur after a Baum
device powers down. The version of BRLTTY running here is from a fairly recent
svn revision.

Here's a backtrace. If there is other information you would like me to acquire
from this core file, let me know what you would like and how to get it. (I'm
thinking of variable values or anything else that might be stored there).

To complicate matters further, I am also getting crashes while BRLTTY is
actually working, but only (so far) under the development version. I'll run a
backtrace on a core file from such a crash and see whether it's related.

Backtrace follows:

Core was generated by `/usr/local/bin/brltty'.
Program terminated with signal 6, Aborted.
#0  0x00002b703adca46b in raise () from /lib/libc.so.6
(gdb) bt
#0  0x00002b703adca46b in raise () from /lib/libc.so.6
#1  0x00002b703adcbc5e in abort () from /lib/libc.so.6
#2  0x00002b703ae01736 in ?? () from /lib/libc.so.6
#3  0x00002b703ae08b7e in ?? () from /lib/libc.so.6
#4  0x00002b703ae0c2ac in free () from /lib/libc.so.6
#5  0x0000000000423b81 in close_HelpScreen () at ./scr_help.c:49
#6  0x0000000000423444 in closeHelpScreen () at ./scr.c:303
#7  0x00000000004102f9 in deactivateBrailleDriver () at ./config.c:1567
#8  0x00000000004103d9 in stopBrailleDriver () at ./config.c:1622
#9  0x00002b703adccfc5 in exit () from /lib/libc.so.6
#10 0x000000000040b7ea in testProgramTermination () at ./main.c:196
#11 0x000000000040bb95 in main (argc=<value optimized out>, 
    argv=<value optimized out>) at ./main.c:1105
(gdb) quit