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Re: [1.7] rebaseall doesn't solve the problem
- From: "Charles Wilson" <cygwin at cwilson dot fastmail dot fm>
- To: "cygwin at cygwin dot com" <cygwin at cygwin dot com>
- Date: Wed, 08 Apr 2009 23:18:09 -0400
- Subject: Re: [1.7] rebaseall doesn't solve the problem
Jonathan wrote:
> I've read the entire thread here
> http://cygwin.com/ml/cygwin/2009-02/msg00488.html and it seems to be the
> exact same problem I'm having. Discussion seems to have stopped though,
> I didn't seem any emails on it for the last three weeks or so. Is this
> fix or tool ready for end users, or testers? I've seen this rebase
> issue on Vista with both Perl and Python.
rebase-3.0-2 was announced here:
http://cygwin.com/ml/cygwin/2009-04/msg00174.html
and it includes the new peflags tool and peflagsall script.
However...
I've found that setting the ASLR flag on the DLLs *helps* on Vista --
but doesn't always work. Sometimes I'll still get the "fatal error -
unable to remap" issue. This usually happens when:
1) The computer has recently hibernated
2) And I'm doing a TON of perl stuff with lots of fork/execs (e.g.
autoreconf).
It usually fixes itself if you reboot. This allows Vista to re-allocate
the random base addresses, AND actually obey them. It's as if it
"forgets" about ASLR after hibernation.
--
Chuck
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