VM problem...

[Pawel Jakub Dawidek]

On Mon, Jul 21, 2003 at 08:51:19PM +0100, Bruce M Simpson wrote:

Matt, Bruce, thanks!

I've track it down.

Yes, those read-only pages was reused. So now I'm putting them on list
before syscall is called, and after syscall is executed I free memory
for non-execve syscalls and mark entries from list as VM_PROT_ALL for
execve(). I'll play in the future with vm_map_delete() maybe those
pages are removable in safe way.

But why memory allocator, that is responsible for finding pages for
stack don't check their permissions?

-- 
Pawel Jakub Dawidek                       pawel at dawidek.net
UNIX Systems Programmer/Administrator     http://garage.freebsd.pl
Am I Evil? Yes, I Am!                     http://cerber.sourceforge.net
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