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Date: Wed, 21 Sep 2011 11:04:27 -0500
From: "jfoug" <>
To: <>
Subject: Crash bug on win32-cygwin-x86-any builds

This may be 'similar' to what Alex is seeing on the Mac OSX (or may be
totally different).  This crash ONLY happens on win32-cygwin-x86-any.  All
other builds, work just fine.


I have gotten it to work.  If I build john.o without -O2, things work.
Otherwise, I get a core, with this type message:


john 3692 exception::handle: Error while dumping state (probably corrupted


There is a john.exe.stackdump, but there is nothing in there, other than
text like the line above (probably corrupted stack).



NO other builds I have show this problem.  However, if I do a full build,
then remove -O2 from the CFLAGS, then rm john.o so it rebuilds just that
file, perform the make, and the file is happy as can be.


When I run the 'broken' version under gdb (I know nothing about gdb, so this
will be a trial and error thing), it simply bails out, listing:


Program received signal SIGSEGV, Segmentation fault.

0x0045bb27 in ?? ()


So it appears GDB is not getting any form of stack frame.





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