Bug#468327: libapache2-mod-perl2: FTBFS on sparc: oh darn, server dumped core

[Niko Tyni]

On Thu, Feb 28, 2008 at 10:01:15PM +0200, Niko Tyni wrote:
> On Thu, Feb 28, 2008 at 01:07:18PM +0200, Niko Tyni wrote:
> > Package: libapache2-mod-perl2
> > Version: 2.0.3-3
> > Severity: serious
> > 
> > This package failed to build on sparc. From the buildd log:
> 
> > /usr/sbin/apache2  -d /build/buildd/libapache2-mod-perl2-2.0.3/ModPerl-Registry/t -f /build/buildd/libapache2-mod-perl2-2.0.3/ModPerl-Registry/t/conf/httpd.conf -D APACHE2 -D PERL_USEITHREADS
> > using Apache/2.2.8 (worker MPM)
> > 
> > waiting 180 seconds for server to start: .[  error] 
> > server has died with status 255 (please examine t/logs/error_log)
> > [  error] oh darn, server dumped core 

> Good news: I'm able to reproduce this both with the selected patches in
> 2.0.3-3 and the current upstream SVN snapshot.

> It would seem that the SIGBUS is an unaligned access caused by the U32 ->
> U16 changes in upstream r615751. I'll rebuild libperl with -g -O0 next
> so upstream can look at it better, but that's going to take a while
> because my sparc box is quite slow...

Here's the better backtrace. I'll forward this upstream tomorrow.

Core was generated by `/usr/sbin/apache2 -d /home/buildd/mod-perl2/ModPerl-Registry/t -f /home/buildd/'.
Program terminated with signal 10, Bus error.
#0  0xf7466914 in Perl_pop_scope (my_perl=0x13e250) at scope.c:143
143     const I32 oldsave = PL_scopestack[--PL_scopestack_ix];
(gdb) bt
#0  0xf7466914 in Perl_pop_scope (my_perl=0x13e250) at scope.c:143
#1  0xf7415798 in Perl_pp_entersub (my_perl=0x13e250) at pp_hot.c:2888
#2  0xf73dd87c in Perl_runops_debug (my_perl=0x13e250) at dump.c:1459
#3  0xf7349278 in S_call_body (my_perl=0x13e250, myop=0xff671620, is_eval=1 '\001') at perl.c:2731
#4  0xf7349650 in Perl_eval_sv (my_perl=0x13e250, sv=0x13f898, flags=2) at perl.c:2793
#5  0xf7349ea8 in Perl_require_pv (my_perl=0x13e250, 
    pv=0xfb3e0 "/home/buildd/mod-perl2/ModPerl-Registry/t/conf/modperl_extra_startup.pl") at perl.c:2887
#6  0xf7559304 in modperl_require_file (my_perl=0x13e250, 
    pv=0xfb3e0 "/home/buildd/mod-perl2/ModPerl-Registry/t/conf/modperl_extra_startup.pl", logfailure=1)
    at modperl_util.c:48
#7  0xf755281c in modperl_config_apply_PerlRequire (s=0x84640, scfg=0xc8178, perl=0x13e250, p=0x7e0c8)
    at modperl_config.c:427
#8  0xf7550704 in modperl_startup (s=0x84640, p=0x7e0c8) at mod_perl.c:327
#9  0xf75504b4 in modperl_startup (s=0x84640, p=0x7e0c8) at mod_perl.c:207
#10 0xf7550988 in modperl_init (base_server=0x84640, p=0x7e0c8) at mod_perl.c:458
#11 0xf7550b14 in modperl_hook_init (pconf=0x7e0c8, plog=0xb0190, ptemp=0xb2198, s=0x84640)
    at mod_perl.c:631
#12 0x0003f620 in ap_run_open_logs ()
#13 0x0002ce8c in main ()

Cheers,
-- 
Niko Tyni   ntyni at debian.org