Re: [Xen-devel] Freeze with 2.6.32.19 and xen-4.0.1rc5

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Mon, Aug 23, 2010 at 02:09:28PM +0300, Pasi Kärkkäinen wrote:
> On Mon, Aug 23, 2010 at 10:01:06AM +0200, Claus Rosenberger wrote:
> > Am 22.08.2010 00:08, schrieb Claus Rosenberger:
> > >  Am 21.08.2010 16:02, schrieb Pasi Kärkkäinen:
> > >> On Sat, Aug 21, 2010 at 03:47:57PM +0200, Claus Rosenberger wrote:
> > >>>  Hi,
> > >>>
> > >>> i have big trouble with a Debian Lenny dom0 and latest kernel 2.6.32.19
> > >>> with xen-4.0.1rc5. Due some reason the system freezes from time to time.
> > >>> I used kernel 2.6.31.9 with xen-3.4.2 before. The machine doesn't write
> > >>> anything to serial console so there are no errors or something like 
> > >>> that.
> > >>>
> > >>> Perhaps there is something to see from the logs ...
> > >>>
> > 
> > 
> > 
> > I did some tests and get a configuration working
> > 
> > title               Xen 4.0-amd64 / Debian GNU/Linux, kernel 2.6.32.19
> > root                (hd0,0)
> > kernel              /boot/xen-4.0-amd64.gz dom0_mem=524288 console=com1 
> > com1=115200,8n1,0xf1c0,0  sync_console
> > loglvl=all guest_loglvl=all acpi=ht noapic noirqbalance
> > module              /boot/vmlinuz-2.6.32.19 root=/dev/md0 ro console=tty0 
> > console=hvc0 nomodeset
> > module              /boot/initrd.img-2.6.32.19
> > 
> > 
> > With "acpi=ht noapic noirqbalance" it seems to be stable.
> > 
> > Without that options i get freezes soon after rebooting but there are no 
> > logs an the serial output.
> > Kernel 2.6.31.14 didn't work as well  and the other working kernel without 
> > that acpi options is
> > 2.6.31.9 but thats not a pvops kernel.
> > 
> 
> Does someone have ideas why the system would silently lockup (freeze)
> without those "acpi=ht noapic noirqbalance" options? 
> 
> Afaik this is an Intel DQ45CB motherboard, which has been used by many 
> people/developers.
> 

Oh, one more thing.. 

Claus: Please try those options separately,
to figure out which one of those is the important one.

-- Pasi


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