> This? I sent it to you earlier this week:
Sorry haven't processed those yet.
Ah. The correct fix here is to clear the tsc flag in boot_cpu_data
when the option is set. Will do that.
-Andi
>
> From: Rusty Russell <[email protected]>
>
> 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]>
> Cc: Andi Kleen <[email protected]>
> Signed-off-by: Andrew Morton <[email protected]>
> ---
>
> arch/i386/kernel/sched-clock.c | 2 +-
> 1 files changed, 1 insertion(+), 1 deletion(-)
>
> diff -puN arch/i386/kernel/sched-clock.c~fix-x86_64-mm-sched-clock-share arch/i386/kernel/sched-clock.c
> --- a/arch/i386/kernel/sched-clock.c~fix-x86_64-mm-sched-clock-share
> +++ a/arch/i386/kernel/sched-clock.c
> @@ -115,7 +115,7 @@ unsigned long long printk_clock(void)
> 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;
> }
> _
>
-
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