From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steven Stovall Subject: Re: Pending signals prevent entry to the guest Date: Wed, 21 Jan 2009 15:53:44 -0800 (PST) Message-ID: <9367936.36861232582024113.JavaMail.root@mailserv1> References: <15896857.36841232581961353.JavaMail.root@mailserv1> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit To: kvm Return-path: Received: from mail.neuraliq.com ([12.129.246.136]:53604 "EHLO mail.neuraliq.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753804AbZAUX4A (ORCPT ); Wed, 21 Jan 2009 18:56:00 -0500 Received: from localhost (localhost.neuraliq.com [127.0.0.1]) by mail.neuraliq.com (Postfix) with ESMTP id 8194B267011A for ; Wed, 21 Jan 2009 15:53:59 -0800 (PST) Received: from mail.neuraliq.com ([127.0.0.1]) by localhost (mail.neuraliq.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5oEyNtBYxobe for ; Wed, 21 Jan 2009 15:53:44 -0800 (PST) Received: from mail.neuraliq.com (mail.neuraliq.com [12.129.246.135]) by mail.neuraliq.com (Postfix) with ESMTP id 27D192670119 for ; Wed, 21 Jan 2009 15:53:44 -0800 (PST) In-Reply-To: <15896857.36841232581961353.JavaMail.root@mailserv1> Sender: kvm-owner@vger.kernel.org List-ID: Can you please explain why dyn or rtc are not the right alarm_timers? My host is linux-2.6.24. ----- Original Message ----- From: "Dor Laor" To: "Steven Stovall" Cc: "kvm" Sent: Wednesday, January 21, 2009 12:05:37 AM GMT -08:00 US/Canada Pacific Subject: Re: Pending signals prevent entry to the guest Steven Stovall wrote: > I posted about a week ago regarding a very different behavior with a host-side app vis a vis kvm-77 vs kvm-33. Pending signals (SIGIO and SIGALRM) never seem to be dequeued so that I never kvm_guest_enter()...it appears that only the dynticks alarm_timer gets enabled which only handles SIGALRM, while the rtc alarm_timer which handles SIGIO does not. I have tried to make sure both are enabled, but I still have perpetual pending signals...is this possible?? Or is there some corruption somewhere? > How many signal_exits do you see on kvm_stat? What's your host kernel version? It wasn't clean if you use dyn tick or rtc clock in qemu. Please post the command line. > Steven > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >