---Sean Witham <sean(_dot_)witham(_at_)asa(_dot_)co(_dot_)uk> wrote:
Edward J. Sabol wrote:
Is your operating system a BSD variant such as
FreeBSD or OpenBSD? If so,
then the problem is due to a poor implementation
of the Standard C Library
system function realloc() on those platforms. A
patch that works around this
is available. See the messages at
This is more a problem caused by the COW that
BSD4.4 introduced with its
mach
based VM. The next release of NetBSD (4.0) will be
using an new VM
called UVM
which should adderss the COW fragmentation problem
casued with the use
realloc.
I believe FreeBSD is introducing its own solutions
to this problem and
there
may be a port of UVM to OpenBSD in the pipeline.
This problem is only part of the picture though as
it only amplifies the
problem
first caused by procmail working on the whole of a
large email in
memeory. Procmail
needs a compile to option to set the maximum memory
buffer it will use
while
handling email.
--Sean
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