Re: How to get a core dump

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Marc Gracia wrote:
> Sorry, here the backtrace... 
> 
> #0  0x4018de75 in Perl_hv_free_ent (my_perl=0x85ba6d8, hv=0xd103fd0,
>     entry=0xcfdb698) at hv.c:1592
> #1  0x4018e11b in S_hfreeentries (my_perl=0x85ba6d8, hv=0x85ba6d8) at
> hv.c:1681
> #2  0x4018e182 in Perl_hv_undef (my_perl=0x85ba6d8, hv=0xd103fd0) at
> hv.c:1707
> #3  0x401a4367 in Perl_sv_clear (my_perl=0x85ba6d8, sv=0xd103fd0) at
> sv.c:5051
> #4  0x401a49e4 in Perl_sv_free (my_perl=0x85ba6d8, sv=0xd103fd0) at
> sv.c:5226
> #5  0x4019be83 in do_clean_all (my_perl=0x85ba6d8, sv=0xd103fd0) at
> sv.c:422
> #6  0x4019bba2 in S_visit (my_perl=0x85ba6d8, f=0x4019be40
> <do_clean_all>)
>     at sv.c:314
> #7  0x4019bee3 in Perl_sv_clean_all (my_perl=0x85ba6d8) at sv.c:440
> #8  0x4012fa04 in perl_destruct (my_perl=0x85ba6d8) at perl.c:796
> #9  0x400be0f3 in perl_shutdown (s=0x809979c, p=0xa1d9fd4) at
> mod_perl.c:294
> #10 0x400c0ca1 in perl_child_exit (s=0x809979c, p=0xa1d9fd4) at
> mod_perl.c:965
> #11 0x400c0958 in perl_child_exit_cleanup (data=0xd103fd0) at
> mod_perl.c:933

It's hard to tell whether this is a bug in perl or some module that you 
use. Shutdown bugs are really hard to deal with. If you could reproduce 
that at will, trying to eliminate modules, programs should help to find 
the guilty party. Since things happen at the server shutdown, you could 
set a low limit on the max number of requests served before retiring the 
process.

Also could you try to upgrade to 5.8.5 just to check that may be it's some 
bug that was fixed in perl since 5.8.0?



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