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syntax error leads to segfault #3578

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p5pRT opened this issue Mar 16, 2001 · 4 comments
Closed

syntax error leads to segfault #3578

p5pRT opened this issue Mar 16, 2001 · 4 comments
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distro-Linux type-core

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@p5pRT
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p5pRT commented Mar 16, 2001

Migrated from rt.perl.org#6053 (status was 'resolved')

Searchable as RT6053$
@p5pRT
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p5pRT commented Mar 16, 2001

From flee@aracnet.com

$ perl -e 'sub a { sub; die if @​_; die "foo $a"; }'
syntax error at -e line 1, near "sub;"
Segmentation fault

Perl Info 

Flags:
    category=core
    severity=medium

Site configuration information for perl v5.6.0:

Configured by prospector at Mon Aug  7 10:58:30 EDT 2000.

Summary of my perl5 (revision 5.0 version 6 subversion 0) configuration:
  Platform:
    osname=linux, osvers=2.2.5-22smp, archname=i386-linux
    uname='linux porky.devel.redhat.com 2.2.5-22smp #1 smp wed jun 2 09:11:51 edt 1999 i686 unknown '
    config_args='-des -Doptimize=-O2 -march=i386 -mcpu=i686 -Dcc=gcc -Dcccdlflags=-fPIC -Dinstallprefix=/usr -Dprefix=/usr -Darchname=i386-linux -Dd_dosuid -Dd_semctl_semun -Di_db -Di_ndbm -Di_gdbm -Di_shadow -Di_syslog -Dman3ext=3pm -Uuselargefiles'
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
    useperlio=undef d_sfio=undef uselargefiles=undef 
    use64bitint=undef use64bitall=undef uselongdouble=undef usesocks=undef
  Compiler:
    cc='gcc', optimize='-O2 -march=i386 -mcpu=i686', gccversion=2.96 20000731 (experimental)
    cppflags='-fno-strict-aliasing'
    ccflags ='-fno-strict-aliasing'
    stdchar='char', d_stdstdio=define, usevfork=false
    intsize=4, longsize=4, ptrsize=4, doublesize=8
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=4
    alignbytes=4, usemymalloc=n, prototype=define
  Linker and Libraries:
    ld='gcc', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /lib /usr/lib
    libs=-lnsl -ldl -lm -lc -lcrypt
    libc=/lib/libc-2.1.92.so, so=so, useshrplib=false, libperl=libperl.a
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic'
    cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib'

Locally applied patches:

@p5pRT
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p5pRT commented May 26, 2001

From @floatingatoll

Here's the stack backtrace from the coredump under @​10209.

Compile-time options​: DEBUGGING MULTIPLICITY USE_ITHREADS USE_LARGE_FILES PERL_IMPLICIT_CONTEXT

R.

#0 0x8080cd8 in Perl_pad_swipe (my_perl=0x811d680, po=4) at op.c​:574
574 SvPADTMP_off(PL_curpad[po]);
(gdb) bt
#0 0x8080cd8 in Perl_pad_swipe (my_perl=0x811d680, po=4) at op.c​:574
#1 0x8080f2f in Perl_op_clear (my_perl=0x811d680, o=0x812b168) at op.c​:767
#2 0x8080e33 in Perl_op_free (my_perl=0x811d680, o=0x812b168) at op.c​:727
#3 0x8080dfa in Perl_op_free (my_perl=0x811d680, o=0x812b238) at op.c​:715
#4 0x8080dfa in Perl_op_free (my_perl=0x811d680, o=0x812b290) at op.c​:715
#5 0x8080dfa in Perl_op_free (my_perl=0x811d680, o=0x812b2b8) at op.c​:715
#6 0x8080dfa in Perl_op_free (my_perl=0x811d680, o=0x812b300) at op.c​:715
#7 0x8080dfa in Perl_op_free (my_perl=0x811d680, o=0x8121fe0) at op.c​:715
#8 0x80881c1 in Perl_newATTRSUB (my_perl=0x811d680, floor=84, o=0x812b038, proto=0x0, attrs=0x0,
  block=0x8121fe0) at op.c​:4737
#9 0x807e9dd in Perl_yyparse (my_perl=0x811d680) at perly.y​:333
#10 0x805f7fa in S_parse_body (my_perl=0x811d680, env=0x0, xsinit=0x805d0ec <xs_init>) at perl.c​:1343
#11 0x805ed76 in perl_parse (my_perl=0x811d680, xsinit=0x805d0ec <xs_init>, argc=3, argv=0xbffffcc4, env=0x0)
  at perl.c​:917
#12 0x805d097 in main (argc=3, argv=0xbffffcc4, env=0xbffffcd4) at perlmain.c​:55

@p5pRT
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p5pRT commented May 8, 2003

From @iabyn

(Just reviewing old Perl bugs).

This is fixed in the current development version of Perl, which
will eventually be released as 5.10.0.

Regards,

Dave M.

@p5pRT p5pRT closed this as completed May 8, 2003
@p5pRT
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p5pRT commented May 8, 2003

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

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