Date: Fri, 23 May 2014 01:03:04 +0200 From: Willem Jan Withagen <wjw@digiware.nl> To: Nils Beyer <nbe@renzel.net>, freebsd-virtualization@freebsd.org Subject: Re: bhyve on AMD, linux and high load Message-ID: <537E8228.3070405@digiware.nl> In-Reply-To: <20140522192928.2BB2E9F5@hub.freebsd.org> References: <537E16FE.4070309@digiware.nl> <20140522162447.3A5F08AE@hub.freebsd.org> <537E4425.2030804@digiware.nl> <20140522192928.2BB2E9F5@hub.freebsd.org>
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On 22-5-2014 21:29, Nils Beyer wrote:
> Hi,
>
> Willem Jan Withagen wrote:
>> I've just completed merging and patching with Anish patches...
>> ONce that seems to run for my freebsd vm's, I'll start merging my
>> patches. And hope that it still works.
>
> Sounds good. I've tried some Linux versions ranging from 2.6.32, 3.10.x,
> 3.11.10 to 3.12.8 using an Anish's patched SVM+HEAD variant. They all
> show the same behaviour being stucked during boot.
>
> I haven't tried your patches yet, though.
Well I'm running Anish SVM+HEAD and I'm no longer able to my old FreeBSD
vm's. And I can't even get vmrun.sh to build new ones....
It just doesn't show anything on the commandline output, even if I go:
-l com1,stdio
Strange part is that the Linux 14.04 VM just starts fine....
So I have a complete reverse situation.
Linux runs, but I have a hard time getting FreeBSD to run.
>> And best would be that the vlapic stuff gives a extra bit of speed,
>> because we're not quite there yet.
>
> I suppose you start your bhyved Linux instances using the "-A" switch (ACPI
> tables), right? If you feel interested, you can try to start them without the
> "-A" switch. For me, the boot process is now stucked at "Calibrating delay
> loop". As far as I understand, it probably has something to do with a borked
> "jiffies" value and that has probably something to do with a borked "IRQ 0"
> that modifes that "jiffies" value at every tick.
Yes I use -A on all my boots.
> But these are just wild guesses as I understand much too little about
> kernels, virtualizing and stuff.
I'm the last one suggesting that I know more that just a little bit, but
I get by..
> For what it's worth, using an Intel i3 and without the "-A" switch, the
> bhyved Linux instance just boots fine as it does with the "-A" switch.
One of the reasons tinkering with AMD is that I don't have an i{3,5,7}
cpus available.
> BTW: you haven't the oppurtunity to try bhyve SVN on a Barcelona- or later
> class Opteron, have you?
Nope, just got a bunch of boards leftover from a previous project. And
they are all:
CPU: AMD Phenom(tm) II X6 1075T Processor (3013.83-MHz K8-class CPU)
Origin="AuthenticAMD" Id=0x100fa0 Family=0x10 Model=0xa Stepping=0
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