Re: can't start apache-1.3.20 with mod_perl and Mason
On Fri, 13 Jul 2001, Louis-David Mitterrand wrote: * On Wed, Jul 11, 2001 at 08:09:20AM -0700, Doug MacEachern wrote: On Wed, 11 Jul 2001, Louis-David Mitterrand wrote: Will I have to build a debugging-enabled libperl to get relevant information? Or is this enough to understand the problem? libperld would help, all i can tell is that something in %SIG is being caught, which normally shouldn't happen at startup. are you assigning anything to %SIG ? you could also try this to get the perl filename:line where the segv happens: (gdb) source mod_perl-x.xx/.gdbinit (gdb) curinfo Thanks again Doug for taking the time to help. Here is the output from curinfo: Program received signal SIGSEGV, Segmentation fault. 0x402b14b6 in Perl_sighandler () from /usr/lib/libperl.so.5.6 (gdb) source .gdbinit (gdb) curinfo Attempt to extract a component of a value that is not a structure pointer. (gdb) Does that help a little? nope. if you could a libperld and build mod_perl with PERL_DEBUG=1 that might help (see SUPPORT doc for howto)
Re: can't start apache-1.3.20 with mod_perl and Mason
On Mon, 16 Jul 2001, Louis-David Mitterrand wrote: * On Wed, Jul 11, 2001 at 08:09:20AM -0700, Doug MacEachern wrote: libperld would help, all i can tell is that something in %SIG is being caught, which normally shouldn't happen at startup. are you assigning anything to %SIG ? you could also try this to get the perl filename:line where the segv happens: (gdb) source mod_perl-x.xx/.gdbinit (gdb) curinfo OK, I rebuilt a debugging libperl and here is the gdb output: hmm, this is a totally different stack trace. have you tried modperl-1.26? or try adding this to httpd.conf: PerlSetEnv PERL_DESTRUCT_LEVEL 2
Re: can't start apache-1.3.20 with mod_perl and Mason
* On Wed, Jul 11, 2001 at 08:09:20AM -0700, Doug MacEachern wrote: libperld would help, all i can tell is that something in %SIG is being caught, which normally shouldn't happen at startup. are you assigning anything to %SIG ? you could also try this to get the perl filename:line where the segv happens: (gdb) source mod_perl-x.xx/.gdbinit (gdb) curinfo OK, I rebuilt a debugging libperl and here is the gdb output: styx:~# gdb apache (no debugging symbols found)...(gdb) run -X Starting program: /usr/sbin/apache -X (no debugging symbols found)...(no debugging symbols found)... [repeated many times] Subroutine div redefined at /usr/share/perl/5.6.1/Exporter.pm line 57. at /usr/lib/perl/5.6.1/POSIX.pm line 18 Subroutine status_mason redefined at /usr/lib/perl5/Apache/Status.pm line 50. (no debugging symbols found)... Program received signal SIGSEGV, Segmentation fault. 0x402d1287 in S_new_he () at hv.c:26 26 PL_he_root = HeNEXT(he); (gdb) bt #0 0x402d1287 in S_new_he () at hv.c:26 #1 0x402d1bf9 in Perl_hv_store (hv=0x8ab7adc, key=0x4034e8e1 $, klen=1, val=0x87f069c, hash=37) at hv.c:411 #2 0x402d1644 in Perl_hv_fetch (hv=0x8ab7adc, key=0x4034e8e1 $, klen=1, lval=1) at hv.c:210 #3 0x40276e45 in Perl_gv_fetchpv (nambeg=0x4034e8e1 $, add=1, sv_type=4) at gv.c:669 #4 0x40273c1e in S_init_postdump_symbols (argc=0, argv=0xbfffd63c, env=0xb9c0) at perl.c:3381 #5 0x4026e9b4 in S_parse_body (env=0x0, xsinit=0x40223dc0 xs_init) at perl.c:1299 #6 0x4026da60 in perl_parse (my_perl=0x8ab7a48, xsinit=0x40223dc0 xs_init, argc=3, argv=0xbfffd630, env=0x0) at perl.c:895 #7 0x402213f4 in perl_startup () from /usr/lib/apache/1.3/mod_perl.so #8 0x402252a9 in perl_cmd_require () from /usr/lib/apache/1.3/mod_perl.so #9 0x08054bd9 in ap_clear_module_list () #10 0x08054f5a in ap_handle_command () #11 0x08054fa1 in ap_srm_command_loop () #12 0x080554d2 in ap_process_resource_config () #13 0x08055bcc in ap_read_config () #14 0x0805d2b4 in ap_child_terminate () #15 0x0805da5d in main () #16 0x400e038b in __libc_start_main () from /lib/libc.so.6 (gdb) source /root/libapache-mod-perl-1.25/.gdbinit (gdb) curinfo 0:/dev/null (gdb) -- PHEDRE: Quand sous un joug honteux à peine je respire ! Quand je me meurs ! (Phèdre, J-B Racine, acte 3, scène 1)
Re: can't start apache-1.3.20 with mod_perl and Mason
* On Wed, Jul 11, 2001 at 08:09:20AM -0700, Doug MacEachern wrote: On Wed, 11 Jul 2001, Louis-David Mitterrand wrote: Will I have to build a debugging-enabled libperl to get relevant information? Or is this enough to understand the problem? libperld would help, all i can tell is that something in %SIG is being caught, which normally shouldn't happen at startup. are you assigning anything to %SIG ? you could also try this to get the perl filename:line where the segv happens: (gdb) source mod_perl-x.xx/.gdbinit (gdb) curinfo Thanks again Doug for taking the time to help. Here is the output from curinfo: Program received signal SIGSEGV, Segmentation fault. 0x402b14b6 in Perl_sighandler () from /usr/lib/libperl.so.5.6 (gdb) source .gdbinit (gdb) curinfo Attempt to extract a component of a value that is not a structure pointer. (gdb) Does that help a little? -- ISMENE: Non, Madame. les Dieux ne vous sont plus contraires, Et Thésée a rejoint les mânes de vos frères. (Phèdre, J-B Racine, acte 2, scène 1)
Re: can't start apache-1.3.20 with mod_perl and Mason
* On Tue, Jul 10, 2001 at 07:13:30PM -0700, Doug MacEachern wrote: On Mon, 9 Jul 2001, Louis-David Mitterrand wrote: After upgrading my installation to Apache-1.3.20 and mod_perl-1.25 as as a module I can't start apache anymore when httpd.conf contains: PerlRequire /etc/apache/perl/handler.pl And that file (for debugging purposes) is practically empty: #!/usr/bin/perl package HTML::Mason; use strict; use HTML::Mason; use HTML::Mason::ApacheHandler; 1; Running strace apache -X shows: read(3, ETE PATCH PROPPATCH MKCOL COPY M..., 4096) = 4096 read(3, mLog directive (see below).\n#\nLo..., 4096) = 4096 read(3, n /icons/uuencoded.gif .uu\nA..., 4096) = 4096 read(3, tweak mime.types without actual..., 4096) = 4096 --- SIGSEGV (Segmentation fault) --- +++ killed by SIGSEGV +++ see mod_perl-1.25/SUPPORT for hints on howto get a stacktrace. Thanks for your help. Here is the result of a gdb run: Program received signal SIGSEGV, Segmentation fault. 0x402b14b6 in Perl_sighandler () from /usr/lib/libperl.so.5.6 (gdb) bt #0 0x402b14b6 in Perl_sighandler () from /usr/lib/libperl.so.5.6 #1 0x402b1ab9 in Perl_hv_store () from /usr/lib/libperl.so.5.6 #2 0x402b172a in Perl_hv_fetch () from /usr/lib/libperl.so.5.6 #3 0x40272c14 in Perl_gv_fetchpv () from /usr/lib/libperl.so.5.6 #4 0x402707de in Perl_init_stacks () from /usr/lib/libperl.so.5.6 #5 0x4026cdee in perl_parse () from /usr/lib/libperl.so.5.6 #6 0x4026c210 in perl_parse () from /usr/lib/libperl.so.5.6 #7 0x402213f4 in perl_startup () from /usr/lib/apache/1.3/mod_perl.so #8 0x402252a9 in perl_cmd_require () from /usr/lib/apache/1.3/mod_perl.so #9 0x08054bd9 in ap_clear_module_list () #10 0x08054f5a in ap_handle_command () #11 0x08054fa1 in ap_srm_command_loop () #12 0x080554d2 in ap_process_resource_config () #13 0x08055bcc in ap_read_config () #14 0x0805d2b4 in ap_child_terminate () #15 0x0805da5d in main () #16 0x400e038b in __libc_start_main () from /lib/libc.so.6 (gdb) Will I have to build a debugging-enabled libperl to get relevant information? Or is this enough to understand the problem? -- HIPPOLYTE: Madame, avant que de partir, J'ai cru de votre sort devoir vous avertit. (Phèdre, J-B Racine, acte 2, scène 2)
Re: can't start apache-1.3.20 with mod_perl and Mason
On Wed, 11 Jul 2001, Louis-David Mitterrand wrote: Will I have to build a debugging-enabled libperl to get relevant information? Or is this enough to understand the problem? libperld would help, all i can tell is that something in %SIG is being caught, which normally shouldn't happen at startup. are you assigning anything to %SIG ? you could also try this to get the perl filename:line where the segv happens: (gdb) source mod_perl-x.xx/.gdbinit (gdb) curinfo
Re: can't start apache-1.3.20 with mod_perl and Mason
On Mon, 9 Jul 2001, Louis-David Mitterrand wrote: Hi, After upgrading my installation to Apache-1.3.20 and mod_perl-1.25 as as a module I can't start apache anymore when httpd.conf contains: PerlRequire /etc/apache/perl/handler.pl And that file (for debugging purposes) is practically empty: #!/usr/bin/perl package HTML::Mason; use strict; use HTML::Mason; use HTML::Mason::ApacheHandler; 1; Running strace apache -X shows: read(3, ETE PATCH PROPPATCH MKCOL COPY M..., 4096) = 4096 read(3, mLog directive (see below).\n#\nLo..., 4096) = 4096 read(3, n /icons/uuencoded.gif .uu\nA..., 4096) = 4096 read(3, tweak mime.types without actual..., 4096) = 4096 --- SIGSEGV (Segmentation fault) --- +++ killed by SIGSEGV +++ see mod_perl-1.25/SUPPORT for hints on howto get a stacktrace.
