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Date:	Mon, 26 Nov 2012 14:47:00 -0500
Message-ID:	<CADEZfNg-jDeqRhP43EANm95oXbPV=LdZx7iz9+4OiVH+qZNdbQ@mail.gmail.com>
Subject:	Re: cygwin dlls address issue (cygconv-2.dll), unable to rebaseall
From:	Piren <gpiren AT gmail DOT com>
To:	cygwin AT cygwin DOT com
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Thanks for the response Ryan

I'm seeing the same issues no matter what runs on Windows, it does the
same even in Safe Mode. Also, this issue only started once i updated
to the new Cygwin version and my windows configuration/installed apps
did not change.

ATM Cygwin is completely non functional, is there nothing i can do to
try and resolve this?

On Mon, Nov 26, 2012 at 12:09 PM, Ryan Johnson
<ryan DOT johnson AT cs DOT utoronto DOT ca> wrote:
> Hi Uri,
>
>
> On 26/11/2012 11:33 AM, Piren wrote:
>>
>> Hi
>>
>> I've been using Cygwin for a while and everything was working fine.
>> i've updated Cygwin to the latest version s 1.7.17-1. and even since
>> i'm unable to use it anymore.
>> I'm getting this message shown on every start of cygwin and it never
>> becomes operational:
>>    0 [main] bash 6156 child_info_fork::abort:
>> C:\cygwin\bin\cygiconv-2.dll: Loaded to different address:
>> parent(0x490000) != child(0x630000)
>> bash: fork: retry: Resource temporarily unavailable
>
> We usually associate fork() failures with a messed-up child process, but
> that error message usually indicates that the parent is the one with
> problems [1]. If you're starting from a command shell or other persistent
> process, you might try restarting it in hopes that Windows gives the next
> one a better address space layout. Otherwise, I don't know what to tell you
> (WFM w/ same version of Windows), other than to make sure things like
> SlickSVN aren't bundling some other version of cygwin that's messing
> everything up (unlikely, since cygcheck didn't complain).
>
> [1] What likely happened is that Windows put "something" at 0x630000 and
> forced cygiconv-2 to rebase; if that "something" moves out of the way in the
> forked child, cygiconv-2 will then attempt to go where it "should" go,
> giving a mismatch. For dynamically loaded dlls, cygwin can work around this
> by unloading the library, and then filling the offending address space with
> padding that forces it to go where desired, but cygiconv is usually
> statically linked and therefore untouchable (attempts to unload it are
> silently ignored by Windows).
>
>
>> i've tried rebaseasll, with a variety of open memory allocations but
>> nothing works.
>
> I've had poor luck with anything but the default base address, because the
> address space is crowded both above and below it. Fine line rebase has to
> walk...
>
> Ryan
>
>
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