On Wed, Jun 09, 2010 at 03:55:59PM +0530, K.Prasad wrote:
> + if (!((bp->attr.bp_addr <= dar) &&
> + (dar <= (bp->attr.bp_addr + bp->attr.bp_len)))) {
> + /*
> + * This exception is triggered not because of a memory access
> + * on the monitored variable but in the double-word address
> + * range in which it is contained. We will consume this
> + * exception, considering it as 'noise'.
> + */
> + info->extraneous_interrupt = true;
> + }
Ummm, don't you need to add "else info->extraneous_interrupt = false;"
here? I don't see anywhere that you ever clear it otherwise.
Also, I think you need to do the "if (!info->extraneous_interrupt)"
check around the call to perf_bp_event() later on in
hw_breakpoint_handler() as well as around the call in
single_step_dabr_instruction().
Paul.
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