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Message-ID: <7FF29DD088644C13860035D63055EC89@D9VGLK61>
Date: Wed, 21 Sep 2011 19:27:44 -0500
From: "JimF" <jfoug@....net>
To: <john-dev@...ts.openwall.com>
Subject: Re: Crash bug on win32-cygwin-x86-any builds
Try running the excutable (the x86-any), and run it doing 'real' work.
To test, simply make a few lines 32 bytes long of hex chars, and test it
using raw-md5 or md5_gen(0).
The builds I was doing would crash in an instant, doing 'real' work. But
ONLY the x86-any build.
Jim.
----- Original Message -----
From: Robert Harris
To: john-dev@...ts.openwall.com
Sent: Wednesday, September 21, 2011 7:22 PM
Subject: RE: [john-dev] Crash bug on win32-cygwin-x86-any builds
John-Dev,
I successfully compiled JtR 1.7.8 jumbo-6-RC5 with patches 001-005 in
Cygwin with win32-cygwin-x86-any and win32-cygwin-x86-sse. (My gcc is
v4.6.0)
It required no modifications.
-Robert B. Harris from VA
From: jfoug [mailto:jfoug@....net]
Sent: Wednesday, September 21, 2011 12:04 PM
To: john-dev@...ts.openwall.com
Subject: [john-dev] 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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