Simpler test perl -e " use open qw{:encoding(UTF-8) :std}; fork; "
c0000005 exception at encoding+0x356a
Exception number: c0000005 (access violation)
*----> State Dump for Thread Id 0x818 <----*
eax=00000000 ebx=00a39014 ecx=00a8796c edx=00a39014 esi=009d9edc edi=0
+0a397a8
eip=70fc356a esp=0022f770 ebp=00000000 iopl=0 nv up ei pl nz n
+a po nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=0
+0000206
*** ERROR: Symbol file could not be found. Defaulted to export symbol
+s for D:\citrusperl\lib\auto\PerlIO\encoding\encoding.dll -
function: encoding
70fc354a 348b xor al,0x8b
70fc354c 5c pop esp
70fc354d 2430 and al,0x30
70fc354f 8b30 mov esi,[eax]
70fc3551 8dbb94070000 lea edi,[ebx+0x794]
70fc3557 8b4e38 mov ecx,[esi+0x38]
70fc355a 85c9 test ecx,ecx
70fc355c 0f844a010000 je encoding+0x36ac (70fc36ac)
70fc3562 8b8314010000 mov eax,[ebx+0x114]
70fc3568 8b2b mov ebp,[ebx]
FAULT ->70fc356a 8b500c mov edx,[eax+0xc] ds:0023:00
+00000c=????????
70fc356d 85d2 test edx,edx
70fc356f 0f848d010000 je encoding+0x3702 (70fc3702)
70fc3575 8b02 mov eax,[edx]
70fc3577 c7421802000000 mov dword ptr [edx+0x18],0x2
70fc357e c74210ffffffff mov dword ptr [edx+0x10],0xfffff
+fff
70fc3585 8b00 mov eax,[eax]
70fc3587 c7400800000000 mov dword ptr [eax+0x8],0x0
70fc358e 8b8310010000 mov eax,[ebx+0x110]
70fc3594 2b6b0c sub ebp,[ebx+0xc]
70fc3597 8b00 mov eax,[eax]
*----> Stack Back Trace <----*
WARNING: Stack unwind information not available. Following frames may
+be wrong.
ChildEBP RetAddr Args to Child
00000000 00000000 00000000 00000000 00000000 encoding+0x356a
*
there are a few recent bug reports
#111344: warnings FATAL => utf8 not working on PerlIO::encoding layer and open pragma
#115262: PerlIO::encoding produces malformed utf8
#115692: PerlIO::encoding can croak, aborting cleanup
PUSHSTACKi/POPSTACK#98060: possible bug in PerlIO::encoding
and http://perl5.git.perl.org/perl.git/history/HEAD:/ext/PerlIO-encoding shows very recent edits
but , while compiling the very latest works, the tests fail with Unknown PerlIO layer "encoding"
md PerlIO-encoding
cd PerlIO-encoding
wget http://perl5.git.perl.org/perl.git/blob_plain/HEAD:/ext/PerlIO-en
+coding/encoding.xs http://perl5.git.perl.org/perl.git/blob_plain/HEAD
+:/ext/PerlIO-encoding/encoding.pm http://perl5.git.perl.org/perl.git/
+blob_plain/HEAD:/ext/PerlIO-encoding/MANIFEST
md t
cd t
wget http://perl5.git.perl.org/perl.git/blob_plain/HEAD:/ext/PerlIO-en
+coding/t/encoding.t http://perl5.git.perl.org/perl.git/blob_plain/HEA
+D:/ext/PerlIO-encoding/t/fallback.t http://perl5.git.perl.org/perl.g
+it/blob_plain/HEAD:/ext/PerlIO-encoding/t/nolooping.t
cd ..
echo use ExtUtils::MakeMaker; WriteMakefile(qw{ NAME PerlIO::encoding
+}); > Makefile.PL
perl Makefile.PL
dmake
dmake test
perl -Mblib -e " use open qw{:encoding(UTF-8) :std}; fork; "
So you should probably perlbug this, and maybe mention this thread and probably that PUSHSTACKi report
