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Date:	Tue, 30 Oct 2012 21:56:23 +0100
From:	marco atzeri <marco DOT atzeri AT gmail DOT com>
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To:	cygwin AT cygwin DOT com
Subject:	Re: A problem with perl and cygpixman-1-0.dll
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On 10/30/2012 9:09 PM, Zdzislaw Meglicki wrote:
> I have a problem with perl scripts that attempt to load cygpixman-1-0.dll. When
> running a test on PerlMagick-6.76 I get the following:
>
> $ make test
> PERL_DL_NONLAZY=1 /usr/bin/perl.exe "-MExtUtils::Command::MM" "-e"
> "test_harness(0, 'blib/lib', 'blib/arch')" t/*.t t/bzlib/*.t t/jpeg/*.t
> t/jng/*.t t/jp2/*.t t/png/*.t t/tiff/*.t t/x11/*.t t/zlib/*.t
> t/blob.t .......... ok
> t/bzlib/read.t .... ok
> t/bzlib/write.t ... ok
> t/composite.t ..... ok
> t/filter.t ........ 1/58       3 [main] perl 7588 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x1720000)
>        3 [main] perl 6824 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x2D0000)
> t/filter.t ........ ok
> t/getattribute.t .. ok
> t/jng/read.t ...... ok
> t/jng/write.t ..... ok
> t/jp2/read.t ...... ok
> t/jpeg/read.t ..... ok
> t/jpeg/write.t .... ok
> t/montage.t .......       3 [main] perl 7028 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x410000)
> t/montage.t ....... 1/19       1 [main] perl 6736 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x370000)
> t/montage.t ....... 2/19       3 [main] perl 7788 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x410000)
>        1 [main] perl 8140 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x410000)
> t/montage.t ....... 4/19       2 [main] perl 2756 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x350000)
>        2 [main] perl 7832 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x410000)
> t/montage.t ....... 6/19       3 [main] perl 4632 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x410000)
> t/montage.t ....... 7/19       2 [main] perl 2700 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x370000)
>        3 [main] perl 8088 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x410000)
> t/montage.t ....... 9/19       3 [main] perl 6916 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x350000)
> t/montage.t ....... 10/19       2 [main] perl 3432 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x410000)
>        3 [main] perl 200 child_info_fork::abort: C:\cygwin\bin\cygpixman-1-0.dll:
> Loaded to different address: parent(0x4AAA0000) != child(0x1770000)
> t/montage.t ....... 12/19       2 [main] perl 2708 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x410000)
> t/montage.t ....... 13/19       1 [main] perl 3520 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x410000)
>        2 [main] perl 6456 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x410000)
> t/montage.t ....... 15/19       2 [main] perl 3644 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x410000)
> t/montage.t ....... 16/19       2 [main] perl 7220 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x1770000)
>        3 [main] perl 6712 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x410000)
> t/montage.t ....... 18/19       1 [main] perl 7604 child_info_fork::abort:
> C:\cygwin\bin\cygpixman-1-0.dll: Loaded to different address: parent(0x4AAA0000)
> != child(0x410000)
> t/montage.t ....... ok
> t/ping.t .......... ok
> t/png/read-16.t ... ok
> t/png/read.t ...... ok
> t/png/write-16.t .. ok
> t/png/write.t ..... ok
> t/read.t .......... ok
> t/setattribute.t .. ok
> t/tiff/read.t ..... ok
> t/tiff/write.t .... ok
> t/write.t ......... ok
> t/x11/read.t ...... ok
> t/x11/write.t ..... ok
> t/zlib/read.t ..... ok
> t/zlib/write.t .... ok
> All tests successful.
> Files=26, Tests=360, 37 wallclock secs ( 0.19 usr  0.17 sys + 21.20 cusr 13.62
> csys = 35.18 CPU)
> Result: PASS
>
> root AT Crawley ~/src/PerlMagick-6.76
> $
>
> Sometimes, see example t/filter.t, it takes one failed attempt, in the other
> example, t/montage.t, it takes many attempts. Eventually, cygpixman-1-0.dll gets
> loaded, I gather, because the test succeeds. I noticed the same problem with
> other perl scripts, e.g., the ones in LaTeXML.
>
> What causes this problem. What package does cygpixman-1-0.dll belong to? Perhaps
> I need to reinstall it?

http://cygwin.com/cgi-bin2/package-grep.cgi?grep=cygpixman-1-0.dll

try rebaseall and perlrebase but I doubt it is the root cause.

Are you building your own ImageMagick or reusing ImageMagick-6.7.6.3-2 ?

>
> Zdzislaw (Gustav) Meglicki
> Indiana University
> http://perth.ovpit.indiana.edu/gustav

Regards
Marco




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