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Re: Large files on AIX ?

From: Larry Jones
Subject: Re: Large files on AIX ?
Date: Wed, 19 Nov 2003 10:06:12 -0500 (EST)

Gunturi Srimanth writes:
> Well, regarding allocating memory - I was able to 
> write a small C program which was able to malloc()
> upto ~134MB - It gave a pointer back, and i was able 
> to write to all of it without any signals. Then why 
> do you think CVS is having trouble with a 70MB file?

CVS has additional overhead -- it doesn't just suck the file into a
single block of memory, it builds a data structure.  If you get a core
dump and know how to get a traceback from it, it might be informative to
see exactly where CVS crashed.  Note that CVS tries to detect out-of-
memory conditions and handle them without crashing, but it isn't always
possible.  AIX in particular used to be notorious for allowing you to
allocate virtual memory that you couldn't actually use.

-Larry Jones

I can do that!  It's a free country!  I've got my rights! -- Calvin

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