lkml.org 
[lkml]   [2002]   [Jan]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [reiserfs-list] Re: Note describing poor dcache utilization under high memory pressure
From
Date
On Mon, 28 Jan 2002 19:29:49 CST, Oliver Xymoron said:

> I think something more is needed, such as creating a minimal page table
> for the child process with read-only mappings to the current %EIP and %EBP
> pages in it. This gets us past the fork/exec hurdle. Without the exec, we
> copy over chunks when they're accessed as above in handle_mm_fault. But
> you can't actually _share_ the page tables without marking the pages
> themselves readonly.

Actually, you can. But everybody agrees that vfork() was blecherous.
--
Valdis Kletnieks
Computer Systems Senior Engineer
Virginia Tech

[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2005-03-22 13:15    [W:0.124 / U:0.124 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site