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From "James H. Cloos Jr." <>
Subject Re: WWW Form Bug Report: "core dump reported almost every time
Date Mon, 27 May 1996 17:49:31 GMT
A number of applications were found to have problems, usu off-by-one
errors, when run with the malloc() in libc-5.3.  

The new malloc() uses mmap() to allocate the vm, giving a significant
performance benefit to applications.  The problem is that it is less
forgiving of free()ing non-malloc()ed or already free()ed vm.

Tcsh comes to mind as one of the other big apps that broke.

Have the pool routines been run through a debugging malloc()?

And as an aside, it is not that Linux doesn't dump core, it is that
the ulimit defaults on many of the distributions are very small, often

James H. Cloos, Jr.	<URL:>	Work:

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