apr_shm_calloc() segfaults if out of memory

[Graham Leggett <mi...@sharp.fm>]

Hi all,

While testing some tolerances in the LDAP cache when it runs out of
memory, I discovered that apr_shm_calloc() segfaults if you attempt to
allocate a block of memory bigger than the memory block you orginally
defined.

Surely in this case apr_shm_calloc() should return NULL instead?

Program received signal SIGSEGV, Segmentation fault.
0xfcc3574 in memset () at soinit.c:59
59	soinit.c: No such file or directory.
(gdb) bt
#0  0xfcc3574 in memset () at soinit.c:59
#1  0xffa7fa8 in apr_shm_calloc () at shmem.c:214

Regards,
Graham
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