Re: [Xen-devel] xen-2.0 20040923 and previous: rpm crash in xenU

[Peri Hankey <mpah@xxxxxxxxxxxxxx>]

The timer question seems to involve more than just the processor type:

------------todays build: xen0 running Mandrake 10: OK
[me@a4 testing]$ ./time-test
CPU speed = 2008 MHz
...............................................

[me@a4 testing]$ rpm -qa
mktemp-1.5-11mdk
libpwdb0-0.61.2-3mdk
make-3.80-5mdk
gettext-base-0.13.1-1mdk
ifplugd-0.21b-1mdk
libgdbm2-1.8.0-24mdk
...

-------------todays build: a41: xenU running Mandrake 10.0: FAIL
[me@a41 testing]$ ./time-test
CPU speed = 2008 MHz
nanosleep(20000us): gtod 0
.nanosleep(20000us): gtod 0
.nanosleep(20000us): gtod 0
.nanosleep(20000us): gtod 0

[me@a41 testing]$ rpm -qa
Floating point exception (core dumped)
[peri@a41 testing]$

--------------- todays build: a37: xenU running PLD Linux: OK
[me@a37 testing]$ ./time-test
CPU speed = 2008 MHz
............................................................

[peri@a37 testing]$ rpm -qa
FHS-2.3-1
basesystem-1.99-2
acl-2.2.22-2
cracklib-2.7-18
cracklib-dicts-2.7-18
make-3.80-5
pam-0.77.3-11
...

I don't think I've yet seen the rpm crash on the PLD Linux distribution. 
So it looks like a combination of Athlon with some subtle difference in 
the way the libraries are compiled.
But Flavio, are you saying that you have the rpm problem that I have but 
don't see the same test results as me?
And by the way, I was very interested to hear about your conectiva rpm 
for xen - is it downloadable?
Thanks to all
Peri

Ian Pratt wrote:

> > On Sat, Sep 25, 2004 at 07:48:44PM +0100, Peri Hankey wrote:
> >    
> >
> > > ----------------  xen0 ------------------------
> > > [me@xen0 testing]$ ./time-test
> > > find_cpu_speed: error parsing /proc/cpuinfo for cpu MHz. Assume 2400 
> > > MhzCPU speed = 2400 MHz
> > > ...........................................................................................................
> > > ...........................................................................................................
> > > ... (lots of dots)
> > > ----------------  xenU ------------------------
> > > [me@xenU testing]$ ./time-test
> > > find_cpu_speed: error parsing /proc/cpuinfo for cpu MHz. Assume 2400 
> > > MhzCPU speed = 2400 MHz
> > > nanosleep(20000us): gtod 0
> > > .nanosleep(20000us): gtod 0
> > > .nanosleep(20000us): gtod 0
> > > .nanosleep(20000us): gtod 0
> > >      
> > Running on xen0 or xenU doesn't make any difference, just lots
> > of dots 
> >    
> That's the behaviour we see on all of our machines i.e. nanosleep
> works fine. I think Peri's problem may be Athlon related,
>
>  
>
> > and that parser error. 
> >    
> The find_cpu_speed printf shouldn't happen any more -- we no
> longer clear the TSC bit in the set of features the CPU reports,
> hence there should be a 'MHz' line in /proc/cpuinfo
>
>
> Ian
>
>
>
>  

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