Re: valgrind, segfaults, gentoo, ReadLine::Gnu (fwd) #6292
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From shevek@anarres.orgperl 5.8.0 The way to get a segfault is this: Run "perl -MCPAN -e shell" You can replace HTTP::Date with anything you like. It doesn't matter. It A gdb logfile of me doing this is attached. A perlio debug file is attached. This segfault does not happen when Term::ReadLine::Gnu is not installed. valgrind talks a lot about invalid reads. gdb isn't giving me enough info to set watchpoints in the io tables. :-( The pattern of usage from valgrind really makes it look as if it's Thanks. S. -- sub AUTOLOAD{my$i=$AUTOLOAD;my$x=shift;$i=~s/^.*://;print"$x\n";eval foreach my $i (3..65535) { &{'2'}($i); } |
From shevek@anarres.orgSummary of my perl5 (revision 5.0 version 8 subversion 0) configuration: Characteristics of this binary (from libperl): |
From shevek@anarres.org(gdb) set environment PERLIO_DEBUG=/tmp/perliodbg Starting program: /usr/bin/perl -MCPAN -e shell Breakpoint 1, main (argc=4, argv=0x4, env=0xbffff908) at perlmain.c:58 cpan shell -- CPAN exploration and modules installation (v1.61) cpan> install HTTP::Date cpan> quit Breakpoint 2, PerlIOStdio_close (f=0xffffffff) at perlio.c:2677 Breakpoint 2, PerlIOStdio_close (f=0xffffffff) at perlio.c:2677 Breakpoint 2, PerlIOStdio_close (f=0xffffffff) at perlio.c:2677 Breakpoint 2, PerlIOStdio_close (f=0xffffffff) at perlio.c:2677 Program received signal SIGSEGV, Segmentation fault. Program terminated with signal SIGSEGV, Segmentation fault. |
From shevek@anarres.org-e:0 define unix 40118a20 |
From shevek@anarres.org==3118== valgrind-1.0.4, a memory error detector for x86 GNU/Linux. |
From perlbug@anarres.orgThe output of strace would appear to agree with valgrind: That some [SNIP several pages] |
From perlbug@anarres.orgThis is really getting into an area that I know nothing about... I (gdb) run cpan shell -- CPAN exploration and modules installation (v1.61) cpan> install HTTP::Date cpan> Breakpoint 2, PerlIO_pop (f=0x8051b84) at perlio.c:627 Program received signal SIGSEGV, Segmentation fault. Of course the condition here is going to be me-specific. I generated the |
From nick.ing-simmons@elixent.comShevek <perl5-porters@perl.org> writes:
Can you try a post5.8.0 snapshot? bleadperl and maint-5.8 both have -- |
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@smpeters - Status changed from 'open' to 'stalled' |
From @dcollinsnThe only person able to test this has not responded to Nick's request for info (13 years ago, and only a month after the bug was filed) and I think we would know if CPAN was still segfaulting on exit. Marking resolved. |
From [Unknown Contact. See original ticket]The only person able to test this has not responded to Nick's request for info (13 years ago, and only a month after the bug was filed) and I think we would know if CPAN was still segfaulting on exit. Marking resolved. |
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@dcollinsn - Status changed from 'stalled' to 'resolved' |
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@nwc10 - Status changed from 'resolved' to 'abandoned' |
Migrated from rt.perl.org#20793 (status was 'abandoned')
Searchable as RT20793$
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