linux-kernel - Re: Testing tracer wakeup_rt: .. no entries found ..FAILED!

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Message-ID: <1343738627.27983.30.camel@gandalf.stny.rr.com>
Date:	Tue, 31 Jul 2012 08:43:47 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Avi Kivity <avi@...hat.com>
Cc:	Fengguang Wu <fengguang.wu@...el.com>,
	Steven Rostedt <srostedt@...hat.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>
Subject: Re: Testing tracer wakeup_rt: .. no entries found ..FAILED!

On Tue, 2012-07-31 at 15:37 +0300, Avi Kivity wrote:
> On 07/31/2012 03:17 PM, Fengguang Wu wrote:
> > 
> > It's good to quickly get to the root cause :) Can we possibly detect
> > whether we are in a virtual machine and hence skip this particular
> > test case?
> 
> cpu_has(&boot_cpu, X86_FEATURE_HYPERVISOR)
> 

Yeah, but then it is still broken on non-x86 code (the test lives in
core kernel).

As it is just testing the events for wakeup, I could probably just add a
completion and force the other thread to just wait for it. I'll write up
a patch. But it wont make it in till 3.7.

-- Steve


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