On Thursday 13 January 2011 01:14 pm, Jung-uk Kim wrote:
> On Wednesday 12 January 2011 10:22 pm, Ariff Abdullah wrote:
> > On Wed, 12 Jan 2011 09:53:03 -0600
> >
> > eculp <ec...@encontacto.net> wrote:
> > > Quoting Ariff Abdullah <ar...@freebsd.org>:
> > > > On Wed, 12 Jan 2011 22:51:29 +0800
> > > > Ariff Abdullah <ar...@freebsd.org> wrote:
> > > >
> > > > [....]
> > > >
> > > >> Try disabling mtrr, machdep.disable_mtrrs=0 through
> > > >> boot prompt or /boot/loader.conf.
> > > >
> > > > Grr.. should be machdep.disable_mtrrs=1
> > >
> > > Caught it, changed it en loader.conf, rebooted and have had
> > > youtube
> > >
> > > running more that 10 minutes with no ill affects.
> >
> > Keep in mind that disabling mtrr is a temporary measure.
> >
> > > Want to clarify that this in with current i386.
> > >
> > > 9.0-CURRENT FreeBSD 9.0-CURRENT #161: Wed Jan 12 04:38:15 CST
> > > 2011
> > >
> > > r...@home.encontacto.net:/usr/obj/usr/src/sys/ENCONTACTO i386
> > >
> > > Thanks again,
> > >
> > > ed
> > >
> > > Thanks so much for your help.
> > >
> > > ed
> > >
> > > >> If that is the case, you probably want this:
> > > >>
> > > >> http://people.freebsd.org/~ariff/misc/mtrr.diff
> >
> > This breakage was due to r215415 commit. Jung-uk Kim, any idea ?
Can you please try the attached patch *without* ariff's workaround?
Thanks,
Jung-uk Kim
Index: sys/amd64/amd64/initcpu.c
===================================================================
--- sys/amd64/amd64/initcpu.c (revision 217356)
+++ sys/amd64/amd64/initcpu.c (working copy)
@@ -169,6 +169,9 @@ void
initializecpucache()
{
+ /* Turn on normal cache mode. */
+ load_cr0(rcr0() & ~(CR0_CD | CR0_NW));
+
/*
* CPUID with %eax = 1, %ebx returns
* Bits 15-8: CLFLUSH line size
Index: sys/i386/i386/initcpu.c
===================================================================
--- sys/i386/i386/initcpu.c (revision 217356)
+++ sys/i386/i386/initcpu.c (working copy)
@@ -532,7 +532,6 @@ init_mendocino(void)
wrmsr(MSR_BBL_CR_CTL3, bbl_cr_ctl3);
}
- load_cr0(rcr0() & ~(CR0_CD | CR0_NW));
intr_restore(saveintr);
#endif /* CPU_PPRO2CELERON */
}
@@ -701,6 +700,8 @@ initializecpu(void)
pg_nx = PG_NX;
}
#endif
+ /* Turn on normal cache mode. */
+ load_cr0(rcr0() & ~(CR0_CD | CR0_NW));
break;
#endif
default:
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