From @andk

bisect

commit 3a0fe09
Author​: Zefram <zefram@​fysh.org>
Date​: Sun Jan 22 03​:20​:08 2017 +0000

  handle errors in gen_constant_list

diagnostics

Fail report shortly after commit​: http​://www.cpantesters.org/cpan/report/2f3bb378-e177-11e6-af27-bba69f28caea
Pass report immediately before commit​: http​://www.cpantesters.org/cpan/report/8bca308e-e077-11e6-a267-6a5f9f28caea

perl -V

Summary of my perl5 (revision 5 version 25 subversion 10) configuration​:
  Commit id​: 3a0fe09
  Platform​:
  osname=linux
  osvers=4.8.0-2-amd64
  archname=x86_64-linux
  uname='linux k93msid 4.8.0-2-amd64 #1 smp debian 4.8.11-1 (2016-12-02) x86_64 gnulinux '
  config_args='-Dprefix=/home/sand/src/perl/repoperls/installed-perls/host/k93msid/v5.25.9-10-g3a0fe090c1/89ad -Dmyhostname=k93msid -Dinstallusrbinperl=n -Uversiononly -Dusedevel -des -Ui_db -Dlibswanted=cl pthread socket inet nsl gdbm dbm malloc dl ld sun m crypt sec util c cposix posix ucb BSD gdbm_compat -Uuseithreads -Uuselongdouble -DDEBUGGING=-g'
  hint=recommended
  useposix=true
  d_sigaction=define
  useithreads=undef
  usemultiplicity=undef
  use64bitint=define
  use64bitall=define
  uselongdouble=undef
  usemymalloc=n
  bincompat5005=undef
  Compiler​:
  cc='cc'
  ccflags ='-fwrapv -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64'
  optimize='-O2 -g'
  cppflags='-fwrapv -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include'
  ccversion=''
  gccversion='6.2.1 20161124'
  gccosandvers=''
  intsize=4
  longsize=8
  ptrsize=8
  doublesize=8
  byteorder=12345678
  doublekind=3
  d_longlong=define
  longlongsize=8
  d_longdbl=define
  longdblsize=16
  longdblkind=3
  ivtype='long'
  ivsize=8
  nvtype='double'
  nvsize=8
  Off_t='off_t'
  lseeksize=8
  alignbytes=8
  prototype=define
  Linker and Libraries​:
  ld='cc'
  ldflags =' -fstack-protector-strong -L/usr/local/lib'
  libpth=/usr/local/lib /usr/lib/gcc/x86_64-linux-gnu/6/include-fixed /usr/include/x86_64-linux-gnu /usr/lib /lib/x86_64-linux-gnu /lib/../lib /usr/lib/x86_64-linux-gnu /usr/lib/../lib /lib
  libs=-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc
  perllibs=-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc
  libc=libc-2.24.so
  so=so
  useshrplib=false
  libperl=libperl.a
  gnulibc_version='2.24'
  Dynamic Linking​:
  dlsrc=dl_dlopen.xs
  dlext=so
  d_dlsymun=undef
  ccdlflags='-Wl,-E'
  cccdlflags='-fPIC'
  lddlflags='-shared -O2 -g -L/usr/local/lib -fstack-protector-strong'

Characteristics of this binary (from libperl)​:
  Compile-time options​:
  HAS_TIMES
  PERLIO_LAYERS
  PERL_COPY_ON_WRITE
  PERL_DONT_CREATE_GVSV
  PERL_MALLOC_WRAP
  PERL_OP_PARENT
  PERL_PRESERVE_IVUV
  PERL_USE_DEVEL
  USE_64_BIT_ALL
  USE_64_BIT_INT
  USE_LARGE_FILES
  USE_LOCALE
  USE_LOCALE_COLLATE
  USE_LOCALE_CTYPE
  USE_LOCALE_NUMERIC
  USE_LOCALE_TIME
  USE_PERLIO
  USE_PERL_ATOF
  Built under linux
  Compiled at Jan 22 2017 03​:43​:33
  @​INC​:
  /home/sand/src/perl/repoperls/installed-perls/host/k93msid/v5.25.9-10-g3a0fe090c1/89ad/lib/site_perl/5.25.10/x86_64-linux
  /home/sand/src/perl/repoperls/installed-perls/host/k93msid/v5.25.9-10-g3a0fe090c1/89ad/lib/site_perl/5.25.10
  /home/sand/src/perl/repoperls/installed-perls/host/k93msid/v5.25.9-10-g3a0fe090c1/89ad/lib/5.25.10/x86_64-linux
  /home/sand/src/perl/repoperls/installed-perls/host/k93msid/v5.25.9-10-g3a0fe090c1/89ad/lib/5.25.10
  .

--
andreas

From zefram@fysh.org

Subject​: [perl #130639] Bleadperl v5.25.9-10-g3a0fe090c1 breaks
SPROUT/JE-0.066.tar.gz

In my own tests, JE-0.066 fails both before and after the commit, in
identical fashion. There's a lot of

  perl​: utf8.c​:1418​: Perl_utf8n_to_uvchr_error​: Assertion `0' failed.

So I'm dubious about the identification of the breaking commit.

-zefram

The RT System itself - Status changed from 'new' to 'open'

From @khwilliamson

On Wed, 25 Jan 2017 13​:31​:26 -0800, zefram@​fysh.org wrote​:

Subject​: [perl #130639] Bleadperl v5.25.9-10-g3a0fe090c1 breaks
SPROUT/JE-0.066.tar.gz

In my own tests, JE-0.066 fails both before and after the commit, in
identical fashion. There's a lot of

perl​: utf8\.c​:1418​: Perl\_utf8n\_to\_uvchr\_error​: Assertion \`0' failed\.

So I'm dubious about the identification of the breaking commit.

-zefram

Those asserts are to catch in DEBUGGING builds violations of the changed API. It is now illegal to call Perl_utf8n_to_uvchr with input length 0. If you have nothing to decode, don't try to decode.
--
Karl Williamson

From zefram@fysh.org

Suppressing the utf8 assertions, I think I've got to what this ticket
is about. The commit identification is fine. The problem reduces to:

$ good_perl -lwe 'print ":".."~"; print 1'
:
1
$ bad_perl -lwe 'print ":".."~"; print 1'
Argument ":" isn't numeric in range (or flop) at -e line 1.
$

-zefram

From zefram@fysh.org

Fixed by b369834.

-zefram

From @iabyn

On Fri, Jan 27, 2017 at 04​:44​:02AM +0000, Zefram wrote​:

Fixed by b369834.

... so I'm closing the ticket.

--
"Strange women lying in ponds distributing swords is no basis for a system
of government. Supreme executive power derives from a mandate from the
masses, not from some farcical aquatic ceremony."
  -- Dennis, "Monty Python and the Holy Grail"

@iabyn - Status changed from 'open' to 'resolved'