On Tue, 2007-06-19 at 16:17 -0400, Steven Rostedt wrote:
> The show all regs sysrq uses the nmi function to do it. But this
> function expects preemption to be off, or funny things happen.
>
> Signed-off-by: Steven Rostedt <[email protected]>
>
> Index: linux-2.6.21-rt9/drivers/char/sysrq.c
> ===================================================================
> --- linux-2.6.21-rt9.orig/drivers/char/sysrq.c
> +++ linux-2.6.21-rt9/drivers/char/sysrq.c
> @@ -213,7 +213,9 @@ static struct sysrq_key_op sysrq_showreg
>
> static void sysrq_handle_showallregs(int key, struct tty_struct *tty)
> {
> + preempt_disable();
> nmi_show_all_regs();
> + preempt_enable();
> }
Looks like you have a whitespace issue here.. Should be tabs, not
spaces.
Daniel
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