Date: Tue, 20 Nov 2001 04:56:02 -0800 From: "Glenn Gombert" <glenngombert@onebox.com> To: "Bill G." <billg@cyberwar.com> Cc: hackers@freebsd.org Subject: Re: vmware boot problem (xp host, freebsd guest) Message-ID: <20011120125602.INJT26106.mta07.onebox.com@onebox.com>
next in thread | raw e-mail | index | archive | help
Here is a patch that was posted to the list a couple weeks ago, that
needs to be applied to make FreeBSD uner vmware work reliably..
In message <20011113165944.G52323-100000@fledge.watson.org>, Robert Watsonwrit
es:
>I've had -STABLE run fine, but of late have had a lot of trouble with
>-current. Userland processes during the boot sequence seem to spenda
lot
>of time just spinning -- it's not clear to me what the cause is, andI
>haven't had time to debug.
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 :-).
Ian
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)
{
---- "Bill G." <billg@cyberwar.com> wrote:
>
> I am having trouble getting FreeBSD 4.4-RELEASE to run in
> vmware. I am using Windows XP Pro as the host os, vmware
> version 3, and FreeBSD as the guest os. I tried searching
> the mailing lists, but was unsuccessful in finding the
> answer to this problem.
>
> FreeBSD installs, but will not boot - it just hangs, with
> no errors.
>
> All suggestions / solutions appreciated. Thanks,
>
> Bill
>
>
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-hackers" in the body of the message
>
__________________________________________________
FREE voicemail, email, and fax...all in one place.
Sign Up Now! http://www.onebox.com
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20011120125602.INJT26106.mta07.onebox.com>