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Date: Thu, 16 Apr 2015 12:53:11 -0400
Message-ID: <CADi7v6JxztfAKqerhSHYhGb22N-OL3Y9nkuvdb_GhsezKTU3zw@mail.gmail.com>
Subject: Re: [ANNOUNCEMENT] TEST RELEASE: Cygwin 2.0.0-5
From: Bryan Berns <bryan DOT berns AT gmail DOT com>
To: cygwin AT cygwin DOT com
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On Thu, Apr 16, 2015 at 10:17 AM, Jim Reisert AD1C
<jjreisert AT alum DOT mit DOT edu> wrote:
> I am unable to start Cywin/X X-server 1.17.1 with this version.
> Previous releases of 2.0.0.x were OK.  I had to revert to 1.7.35-1 for
> the time being.
>
> Other than updating to 2.0.0.5, I also installed the April 2015 "Patch
> Tuesday" updates from Microsoft.  I don't know if the two are related.
>   Windows 7 Home Premium, 64-bit
>
> Exception: STATUS_ACCESS_VIOLATION at eip=77C50F8A
> eax=00000000 ebx=612D67B0 ecx=00001000 edx=612D2648 esi=00000000 edi=0028C790
> ebp=0028C608 esp=0028C604 program=C:\Cygwin\bin\XWin.exe, pid 1660, thread main
> cs=0023 ds=002B es=002B fs=0053 gs=002B ss=002B
> Stack trace:
> Frame     Function  Args
> 0028C608  77C50F8A (00000000, 612D2648, 00000000, 612D67B0)
> 0028C738  610CDA1F (000043FF, 00000000, 00000000, 80012428)
> 0028C7B8  61047198 (00000000, 72483F24, 75604227, 00000254)
> 0028C7F8  610F629D (00000001, 00000000, 00000000, 75623912)
>
> --
> Jim Reisert AD1C, <jjreisert AT alum DOT mit DOT edu>, http://www.ad1c.us

I've actually had problem building Cygwin (1.7.35 or 2.x source) on
Cygwin 2.x using Windows.  The make errors out with a "permissions
denied" when setting permissions (chmod +x) on config.status in
<builddir>/etc.  I was able to produce it on three different, freshly
built copies of Windows (no BLODA at all).  Only had Cygwin plus the
build essentials (gcc, ming, xmlto, diffutils, textinfo, cocom)
installed.  Only tried with 32-bit.

The super wacky thing is that if I rearrange the unrelated contents of
the make file that fuels the whole process, the problem goes away.  If
I "downgrade" the core back to 1.7.35, the problem goes away.  It
almost seems like there might an uninitialized memory issue in the
code path executed in chmod().  I apologize for the lack of debugging
on my part, but I just wanted to throw this out there in case a) it
could be related to this issue or b) anyone else has seen this.

That said, I'm making progress in debugging my "Unknown Group" issue
described in another chain; hope to report out on that this weekend
when I have a little more time to play.

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