From: Gianni Tedesco <gianni.tedesco@citrix.com>
To: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: George Dunlap <dunlapg@umich.edu>,
Xen Devel <xen-devel@lists.xensource.com>,
Konrad Wilk <konrad.wilk@oracle.com>
Subject: RE: HVM SMP linux guest hangs in cpu_idle() with EFLAGS.IF = 1
Date: Tue, 13 Jul 2010 20:27:01 +0100 [thread overview]
Message-ID: <1279049221.1723.1625.camel@qabil.uk.xensource.com> (raw)
In-Reply-To: <1279048432.1723.1615.camel@qabil.uk.xensource.com>
On Tue, 2010-07-13 at 20:13 +0100, Gianni Tedesco wrote:
> On Tue, 2010-07-13 at 19:42 +0100, Dan Magenheimer wrote:
> > This may be totally unrelated, but just in case...
> >
> > Are you using xl to create your problem domains?
> > If so, you might want to set timer_mode=1 in your
> > vm.cfg. (See other xen-devel thread "xen tsc problems".)
>
> Yeah I just had that chat with stefano but I am running with
> timer_mode=1 now and no changes, I had timer_mode=3 before, and 0 before
> that.
>
> Currently instrumenting my kernel to check for any time-sources going
> backwards...
In fact, strike this, the clocksource is jiffies which is being bumped
by interrupts, according to hvmctx, HPET is delivering ISR 0 so no way
wall time should be going backwards.
Damn
next prev parent reply other threads:[~2010-07-13 19:27 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-07 18:42 HVM SMP linux guest hangs in cpu_idle() with EFLAGS.IF = 1 Gianni Tedesco
2010-07-08 10:03 ` George Dunlap
2010-07-08 11:55 ` Gianni Tedesco
2010-07-08 13:28 ` George Dunlap
2010-07-09 16:20 ` Gianni Tedesco
2010-07-21 16:46 ` Gianni Tedesco
2010-07-12 14:04 ` Konrad Rzeszutek Wilk
2010-07-12 14:24 ` George Dunlap
2010-07-12 15:09 ` Gianni Tedesco
2010-07-12 15:44 ` Konrad Rzeszutek Wilk
2010-07-13 16:31 ` Gianni Tedesco
2010-07-13 18:13 ` Gianni Tedesco
2010-07-13 18:42 ` Dan Magenheimer
2010-07-13 19:13 ` Gianni Tedesco
2010-07-13 19:27 ` Gianni Tedesco [this message]
2010-07-21 17:29 ` Gianni Tedesco
2010-07-21 17:56 ` Nakajima, Jun
2010-07-21 17:59 ` Gianni Tedesco
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