Re: [kvm] Re: [kvm] Re: [kvm] Re: [kvm] Re: tcpdump locks up kvm host for a while.

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On 10/02/2011 07:13 PM, Robin Lee Powell wrote:
On Sun, Oct 02, 2011 at 07:12:42PM +0200, Avi Kivity wrote:
>  On 10/02/2011 07:07 PM, Robin Lee Powell wrote:
>  >On Sun, Oct 02, 2011 at 07:06:35PM +0200, Avi Kivity wrote:
>  >>   On 10/02/2011 02:45 AM, Robin Lee Powell wrote:
>  >>   >I'm afraid clocksource=hpet didn't help much; after about 24 hours
>  >>   >up, tcpdump hung the machine for for about 10 seconds.  That may or
>  >>   >may not be better than usual; I haven't been timing things
>  >>   >precisely.  My suspicion is that it's slightly better, but it's
>  >>   >still not great.
>  >>   >
>  >>   >Also:
>  >>   >
>  >>   >rlpowell@vrici>    dmesg | grep -i clock
>  >>   >[    0.000000] Command line: ro root=/dev/vda2 rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=us console=ttyS0,115200 clocksource=hpet
>  >>   >[    0.000000] kvm-clock: Using msrs 12 and 11
>  >>   >[    0.000000] kvm-clock: cpu 0, msr 0:1b567c1, boot clock
>  >>   >[    0.000000] kvm-clock: cpu 0, msr 0:5fc137c1, primary cpu clock
>  >>   >[    0.000000] Kernel command line: ro root=/dev/vda2 rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=us console=ttyS0,115200 clocksource=hpet
>  >>   >[    0.000000] hpet clockevent registered
>  >>   >[    0.260136] Switching to clocksource hpet
>  >>   >[    1.009393] rtc_cmos 00:01: setting system clock to 2011-10-01 07:49:50 UTC (1317455390)
>  >>   >[    1.821905] Refined TSC clocksource calibration: 2394.030 MHz.
>  >>   >[60555.473797] Clocksource tsc unstable (delta = -42950328292 ns)
>  >>   >
>  >>   >(note the last line)
>  >>   >
>  >>
>  >>   Do you get a similar error with kvmclock?
>  >
>  >I don't think I did, no.  I'm not completely certain, but pretty
>  >sure.
>  >
>
>  Then let's try to understand why it doesn't work with kvmclock.

I'd love to.  Suggestions?


Well, any messages?  Alternatively, detailed instructions to reproduce?

--
error compiling committee.c: too many arguments to function

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