Re: [Xen-users] PV Linux domUs freeze after a few hours

[Leszek Urbanski <tygrys@xxxxxx>]

<7207d96f0909021002j1e99901aw5b253a7bc2df7eef@xxxxxxxxxxxxxx>; from Fajar A. 
Nugraha on Thu, Sep 03, 2009 at 00:02:12 +0700

> > - domU kernels: paravirt ops 2.6.30 and Lenny's xenified 2.6.26 (both have
> >  the same problems)
> 
> I had CPU softlockup problem with Lenny's xen kernel. Using 2.6.29
> xenified kernel seems to fix that.

What bothers me is that the lockups occur with both pv_ops and xenified
kernels. That's supposed to be different code. The bug may as well be in
the hypervisor or dom0 kernel (less likely).

> > - downgrading domU kernel to xenified 2.6.18
> 
> That one seems to be most promising. Assuming your domU can use
> 2.6.18. I mostly use RHEL's kernel-xen (2.6.18) which comes with the
> distro and works fine.

That's actually a last resort. We can't stick to 2.6.18 in dom0 nor domU
forever due to outdated iSCSI support etc. It'd be easier for us to switch
to KVM.


-- 
Leszek "Tygrys" Urbanski, SCSA, SCNA
 "Unix-to-Unix Copy Program;" said PDP-1. "You will never find a more
  wretched hive of bugs and flamers. We must be cautious." -- DECWARS
     http://cygnus.moo.pl/ -- Cygnus High Altitude Balloon

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