From: david ahern <daahern@cisco.com>
To: Avi Kivity <avi@qumranet.com>
Cc: kvm-devel@lists.sourceforge.net
Subject: Re: still seeing network freezes with rtl8139 nic
Date: Wed, 05 Mar 2008 11:33:32 -0700 [thread overview]
Message-ID: <47CEE77C.8060506@cisco.com> (raw)
In-Reply-To: <47CED4FB.8050508@qumranet.com>
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.
>
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prev parent reply other threads:[~2008-03-05 18:33 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-21 18:33 still seeing network freezes with rtl8139 nic david ahern
2008-02-24 10:14 ` Avi Kivity
2008-02-24 19:49 ` david ahern
2008-02-25 8:54 ` Avi Kivity
2008-02-25 16:11 ` david ahern
2008-02-25 17:06 ` david ahern
2008-02-25 17:19 ` Avi Kivity
2008-02-26 4:57 ` david ahern
2008-02-26 9:19 ` Avi Kivity
2008-02-26 14:41 ` Avi Kivity
2008-02-26 14:55 ` david ahern
2008-02-26 14:50 ` david ahern
2008-02-26 15:07 ` Avi Kivity
2008-03-04 18:05 ` Eckersid SIlapaswang
2008-03-05 15:04 ` david ahern
2008-03-05 17:14 ` Avi Kivity
2008-03-05 18:33 ` david ahern [this message]
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