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Fischx / wmii

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Segfault in regcomp.c line 277 or regexec.c line 212 with reallocation takes place #269

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
Using OpenBSD which allows me to force memory reallocation when realloc is 
called.
ln -s R /etc/malloc.conf

What steps will reproduce the problem?
1. Enable realloc
2. Start wmii using default wmiirc
3. If it starts, open a terminal

What is the expected result? What do you see instead?
Expected behave is to start up, parse the rc script and allow launching of the 
terminal

Frequently it will SIGSEGV in regcomp.c at startup.  If it is able to start up, 
it will SIGSEGV in regexec.c when launching an application.

Something is lost when reallocation takes place.  I assume, typically the OS 
doesn't bother with the reallocation so there isn't usually a crash.  Forcing 
reallocation to occur every time exposes the bug.

What version of the product are you using (wmii -v)? On what operating
system (uname -a)?
OpenBSD 5.6 amd64

OpenBSD ports has version 3.6 which is where I discovered the problem, but it 
is also reproducible in 3.9.2

Original issue reported on code.google.com by Tro...@gmail.com on 5 Nov 2014 at 4:43