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Re: a libc-help mailing list


On Wed, Apr 23, 2008 at 4:42 AM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
>  We are working on setting up a libc-help for the purpose of helping
>  libc users and new hackers.

That would be really nice.  I must say that Ulrich's responses have
been exceptionally
sucky.  For anyone that happens to remember my latest topic, I
expanded virtual size
from 64 to 128MB and wound up with 72 empty allocation arenas before malloc
failed and the program aborted.  And, no, not one of the pthreads that
started and
exited left around any joinable data.  They were all detached threads.
 In the end,
I extracted the arenas and mmap-ed them into a program with malloc symbols
and used gdb to examine all the structures.  do_check_malloc_state() said all
the arenas were empty.  The 72 MB of "heaps" that included these arenas ought
to have been unmapped.  There is a timing hole somewhere, but I get the distinct
impression that you don't care.


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