From mboxrd@z Thu Jan 1 00:00:00 1970 From: david ahern Subject: Re: still seeing network freezes with rtl8139 nic Date: Wed, 05 Mar 2008 11:33:32 -0700 Message-ID: <47CEE77C.8060506@cisco.com> References: <47BDC414.30301@cisco.com> <47CEB685.10308@cisco.com> <47CED4FB.8050508@qumranet.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel@lists.sourceforge.net To: Avi Kivity Return-path: In-Reply-To: <47CED4FB.8050508@qumranet.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces@lists.sourceforge.net Errors-To: kvm-devel-bounces@lists.sourceforge.net List-Id: kvm.vger.kernel.org I did not have any better luck with the e1000 or pcnet nics when running kvm-61. I'll try again with kvm-63 and get back to you. david Avi Kivity wrote: > david ahern wrote: >> Try adding the noapic option to your guest kernel. I re-ran that test >> on kvm-62 >> and my VM was able to run under load for more than 3-1/2 days (the >> network never >> locked up; I stopped the test to try other variations). >> >> One side effect of the noapic option is that irq balancing is disabled >> -- all >> interrupts are delivered via CPU 0. I ran a few tests earlier this >> week without >> the noapic option (hence with the apic) but with irq balancing >> disabled and >> still had the lockups. It seems to be something specific to the apic. >> >> > > I got good results with apic and e1000. Can you try it? > > May be a guest driver bug. > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/