From: Marcelo Tosatti <mtosatti@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: linux-kernel@vger.kernel.org,
Luiz Capitulino <lcapitulino@redhat.com>,
Rik van Riel <riel@redhat.com>,
Steven Rostedt <srostedt@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
kvm@vger.kernel.org
Subject: Re: [patch -rt 2/2] KVM: lapic: mark LAPIC timer handler as irqsafe
Date: Thu, 4 Dec 2014 11:43:52 -0200 [thread overview]
Message-ID: <20141204134352.GA28510@amt.cnet> (raw)
In-Reply-To: <5474BE7C.5040909@redhat.com>
On Tue, Nov 25, 2014 at 06:38:04PM +0100, Paolo Bonzini wrote:
>
>
> On 25/11/2014 18:21, Marcelo Tosatti wrote:
> > +
> > + if (r == HRTIMER_RESTART) {
> > + do {
> > + ret = hrtimer_start_expires(data, HRTIMER_MODE_ABS);
> > + if (ret == -ETIME)
> > + hrtimer_add_expires_ns(&ktimer->timer,
> > + ktimer->period);
>
> Is it possible to just compute the time where the next interrupt
> happens?
Yes but there is no guarantee hrtimer_start_expires will not fail.
> I suspect the printk and WARN_ON below can be easily triggered
> by a guest.
I'll remove those, thanks.
next prev parent reply other threads:[~2014-12-04 13:43 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-25 17:21 [patch -rt 0/2] use simple waitqueue for kvm vcpu waitqueue (v2) Marcelo Tosatti
2014-11-25 17:21 ` [patch -rt 1/2] KVM: use simple waitqueue for vcpu->wq Marcelo Tosatti
2014-11-25 18:57 ` Rik van Riel
2014-11-25 19:08 ` Rik van Riel
2014-11-25 19:30 ` Marcelo Tosatti
2014-11-25 20:23 ` Thomas Gleixner
2014-11-25 17:21 ` [patch -rt 2/2] KVM: lapic: mark LAPIC timer handler as irqsafe Marcelo Tosatti
2014-11-25 17:38 ` Paolo Bonzini
2014-11-25 17:38 ` Paolo Bonzini
2014-11-25 19:01 ` Jan Kiszka
2014-12-04 13:43 ` Marcelo Tosatti [this message]
2014-11-25 19:11 ` Rik van Riel
2014-11-25 20:24 ` Thomas Gleixner
2014-12-04 13:53 ` Paolo Bonzini
2014-12-04 13:53 ` Paolo Bonzini
2014-12-05 16:17 ` Marcelo Tosatti
-- strict thread matches above, loose matches on Subject: below --
2015-04-08 23:33 [patch -rt 0/2] use simple waitqueue for kvm vcpu waitqueue (v5) Marcelo Tosatti
2015-04-08 23:33 ` [patch -rt 2/2] KVM: lapic: mark LAPIC timer handler as irqsafe Marcelo Tosatti
2015-01-21 20:36 [patch -rt 0/2] use simple waitqueue for kvm vcpu waitqueue (v4) Marcelo Tosatti
2015-01-21 20:36 ` [patch -rt 2/2] KVM: lapic: mark LAPIC timer handler as irqsafe Marcelo Tosatti
2015-01-14 17:12 [patch -rt 0/2] use simple waitqueue for kvm vcpu waitqueue (v3) Marcelo Tosatti
2015-01-14 17:12 ` [patch -rt 2/2] KVM: lapic: mark LAPIC timer handler as irqsafe Marcelo Tosatti
2015-01-14 18:23 ` Rik van Riel
2014-11-25 16:45 [patch -rt 0/2] use simple waitqueue for kvm vcpu waitqueue Marcelo Tosatti
2014-11-25 16:45 ` [patch -rt 2/2] KVM: lapic: mark LAPIC timer handler as irqsafe Marcelo Tosatti
2014-11-25 17:10 ` Paolo Bonzini
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20141204134352.GA28510@amt.cnet \
--to=mtosatti@redhat.com \
--cc=kvm@vger.kernel.org \
--cc=lcapitulino@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=pbonzini@redhat.com \
--cc=riel@redhat.com \
--cc=srostedt@redhat.com \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.