RE: [Xen-devel] wget and Zope crashes on post-2.0.6 -testing

[Osma Suominen <osma.suominen@xxxxxxxxxxxx>]

On Thu, 2 Jun 2005, Ian Pratt wrote:

> Funny you should say that....
>
> Please don't all download it at once, but there's a preview avilable at:
> http://www.cl.cam.ac.uk/Research/SRG/netos/xen/downloads/xendemo-2.0.6.iso
Wow! Thanks... I'll look into that.

> If you're running NTP in your local domain you should enable
> independent_wallclock
>
> e.g. echo 1 > /proc/sys/xen/independent_wallclock or put
> independent_wallclock=1 on your kernel command line. [NB: someone should
> document the kernel config option]
>
> I'll wager that this is your problem. Hmm, that's a pretty nasty failure
> mode. Without doing something gross and intercepting the adjtimex
> syscall there's not a lot we can do about it.
I'm not running NTP in domU, but it should be running in dom0, although it 
seems it's not working since the clock is out of sync.
I turned on independent_wallclock and was just about to report that it 
fixed the problem, and then it happened again. Twice. That is, SETI broke 
wget, even with independent_wallclock=1.
Also, with "apt-get install ntpdate ntp-simple" and SETI running I get 
this interesting Perl error (which I've seen before, during high load):
--clip--
debconf: Perl may be unconfigured (Global symbol "%priorities" requires 
explicit package name at /usr/share/perl5/Debconf/Priority.pm line 16.
Compilation failed in require at /usr/share/perl5/Debconf/Config.pm line 
7.
BEGIN failed--compilation aborted at /usr/share/perl5/Debconf/Config.pm 
line 7.
Compilation failed in require at /usr/share/perl5/Debconf/Log.pm line 8.
Compilation failed in require at (eval 1) line 4.
BEGIN failed--compilation aborted at (eval 1) line 4.
) -- aborting
--clip--

And wget occasionally dies with "malloc: not enough memory", when the 
machine has 1 gig of free RAM (total 1,5G) plus 3G of swap. This is 
getting really weird...
I installed ntp on the domU in question and the problem remains, with 
independent_wallclock=1, ntp running and the clock in sync with the 
world.
-Osma

--
*** Osma Suominen / MB Concert Ky *** osma.suominen@xxxxxxxxxxxx ***

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