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Date: Tue, 29 Mar 2005 21:43:11 +0100
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To:  perl6-intern...@perl.org
Subject: Re: More Garbage Collection Issues
References: <Pine.LNX.4.62.0503282006090.15632@okcomputer.antiflux.org> <200503290919.j2T9JTH16506@thu8.leo.home>
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Approved: n...@nntp.perl.org
From: ni...@glencros.demon.co.uk (Nick Glencross)

Leopold Toetsch wrote:

>Cory Spencer <cspen...@sprocket.org> wrote:
>
>  
>
>>I've come across another garbage collection/DOD issue that I'm trying to
>>solve (without much success) and would appreciate some tips/advice on how
>>to locate the source of the problem.
>>
Running valgrind (on supported platforms, obviously) may sometimes work.

The DOD certainly has a few things flagged up, which I'm going to 
quickly investigate to see if they are serious or not...

Nick

e.g.

==914== Conditional jump or move depends on uninitialised value(s)
==914==    at 0x80C9700: trace_mem_block (dod.c:1004)
==914==    by 0x80CB9D3: trace_system_stack (cpu_dep.c:117)
==914==    by 0x80CB9A1: trace_system_areas (cpu_dep.c:98)
==914==    by 0x80C8F5A: Parrot_dod_trace_root (dod.c:362)
==914==    by 0x80C8FB3: trace_active_PMCs (dod.c:374)
==914==    by 0x80C99B9: Parrot_dod_ms_run (dod.c:1198)
==914==    by 0x80C9A79: Parrot_do_dod_run (dod.c:1237)
==914==    by 0x80C7920: more_traceable_objects (smallobject.c:114)


==914== Conditional jump or move depends on uninitialised value(s)
==914==    at 0x80C7846: contained_in_pool (smallobject.c:55)
==914==    by 0x80C85CD: is_buffer_ptr (headers.c:517)
==914==    by 0x80C970F: trace_mem_block (dod.c:1004)
==914==    by 0x80CB9D3: trace_system_stack (cpu_dep.c:117)
==914==    by 0x80CB9A1: trace_system_areas (cpu_dep.c:98)
==914==    by 0x80C8F5A: Parrot_dod_trace_root (dod.c:362)
==914==    by 0x80C8FB3: trace_active_PMCs (dod.c:374)
==914==    by 0x80C99B9: Parrot_dod_ms_run (dod.c:1198)
==914==