On Mon, 4 Jun 2007 12:19:33 -0500 Matt Mackall <[EMAIL PROTECTED]> wrote:
> On Wed, May 23, 2007 at 09:27:40AM +1000, Rusty Russell wrote:
> > On Tue, 2007-05-22 at 17:38 -0500, Matt Mackall wrote:
> > > [ 0.120007] EIP is at resync_sc_freq+0x4b/0x56
> >
> > Hi Matt,
> >
> > Thanks for the report! Andrew should have these two patches queued,
> > but here they are again:
> >
> > If you set tsc_disable (eg "notsc" on cmdline), sched-clock.c gives a
> > divide by zero on boot.
> >
> > Signed-off-by: Rusty Russell <[EMAIL PROTECTED]>
> >
> > ---
> > arch/i386/kernel/sched-clock.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > ===================================================================
> > --- a/arch/i386/kernel/sched-clock.c
> > +++ b/arch/i386/kernel/sched-clock.c
> > @@ -103,7 +103,7 @@ static void resync_sc_freq(struct sc_dat
> > static void resync_sc_freq(struct sc_data *sc, unsigned int newfreq)
> > {
> > sc->sync_base = jiffies;
> > - if (!cpu_has_tsc) {
> > + if (!cpu_has_tsc || tsc_disable) {
> > sc->unstable = 1;
> > return;
> > }
>
> Looks like this one got lost in rc3-mm1.
>
Andi said that he fixed the zero-divide by other means?
-
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