Subject: Re: kernel mem allocator, was: Interface detach branch available
To: None <>
From: Paul Newhouse <>
List: current-users
Date: 12/18/1998 20:01:08
In reference to DUX Dave Cherkus <> writes:

>It's malloc also has debug modes that do auditing, leak detection,
>internal consistency checking and even a mode where virtual addresses
>are never reused and are always unmapped after being freed so any 
>access to that address will fault.  This is great for finding use
>of pointers after freeing the memory.

Sure, in a debug kernel.  I was talking about the performance kernel 
clients use in the field.  The "use after freeing" bugs NEVER show up
in pre-release testing.  *8^)))