Here is the patch from a previous posting that fixes the problem of
running FreeBSD -Current as a Guest OS under VMWare Workstation 3.0:


Someone mentioned on a list somewhere that vmware takes forever to
emulate the cmpxchg instruction, and that using the I386_CPU version
of atomic_cmpset_int() helps a lot. I noticed a major vmware slowdown
with -current sometime in September, so I tried avoiding the
cmpxchg's and things got much faster. Below is the patch I use
(using this outside vmware on SMP hardware is a bad idea :-).


Index: atomic.h
RCS file: /dump/FreeBSD-CVS/src/sys/i386/include/atomic.h,v
retrieving revision 1.21
diff -u -r1.21 atomic.h
--- atomic.h    2001/10/08 20:58:24     1.21
+++ atomic.h    2001/10/09 18:35:25
@@ -111,7 +111,7 @@
  * Returns 0 on failure, non-zero on success
-#if defined(I386_CPU)
+#if defined(I386_CPU) || 1
 static __inline int
 atomic_cmpset_int(volatile u_int *dst, u_int exp, u_int src)

Glenn G.

  Glenn Gombert

"Never trust any operating system you don't have the source code for"

-- - Get back to work

To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-current" in the body of the message

Reply via email to