Re: IRQ behaivour has been changed from v4.14 to v4.15-rc1

[Thomas Gleixner]

On Thu, 28 Dec 2017, Andy Shevchenko wrote:
> On Thu, 2017-12-28 at 21:18 +0100, Thomas Gleixner wrote:
> > Yes, you missed the typo in the command line. It should be:
> > 
> >  'trace_event=irq_vectors:* ftrace_dump_on_oops'
> 
> Indeed.
> 
> So, I had to disable LOCAL_TIMER_VECTOR, CALL_FUNCTION_VECTOR and
> RESCHDULE_VECTOR tracing, otherwise I got a lot of spam and RCU stalls.

Fair enough.

> The result w/o above is (full log is available here https://pastebin.com
> /J5yaTbM9):

Ok. Which irqs are related to that ISP thingy?

Are these interrupts MSI?

Thanks,

	tglx