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Message-ID: <047c01cc7878$242ba330$6c82e990$@net>
Date: Wed, 21 Sep 2011 11:04:27 -0500
From: "jfoug" <jfoug@....net>
To: <john-dev@...ts.openwall.com>
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
stack)
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.
Jim.
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