Hi Glauber, sorry for late reply.
well, I'm no longer able to reproduce the problem in the same way (with
backtraces etc) as before, but anyways enabling paravirt_clock with or
without Your patches on SMP guest still causes troubles:
on my phenom machine, the kernel hangs after printing
"PCI-GART
On Mon, Apr 21, 2008 at 4:15 AM, Gerd Hoffmann <[EMAIL PROTECTED]> wrote:
> Marcelo Tosatti wrote:
> >> >From what me and marcelo discussed, I think there's a possibility that
> >> it has marginally something to do with precision of clock calculation.
> >> Gerd's patches address that issues. Can
Marcelo Tosatti wrote:
>> >From what me and marcelo discussed, I think there's a possibility that
>> it has marginally something to do with precision of clock calculation.
>> Gerd's patches address that issues. Can somebody test this with those
>> patches (both guest and host), while I'm off ?
>
>
On Sat, Apr 19, 2008 at 01:22:28PM -0300, Glauber Costa wrote:
> > I've been able to reproduce the problem. Symptoms are that when using
> > NOHZ vcpu0 LAPIC timer is ticking far less than the others (apparently
> > vcpu0
> > is the only one ticking "correctly"):
> >
> >
> > nohz=on with kvmcl
On Sat, Apr 19, 2008 at 12:29:47PM -0300, Marcelo Tosatti wrote:
> > I just reproduced this on a UP guest. Were you seeing the exact same
> > stack trace in the guest with kvm-64 ?
>
> I've been able to reproduce the problem. Symptoms are that when using
> NOHZ vcpu0 LAPIC timer is ticking far les
On Sat, Apr 19, 2008 at 12:29 PM, Marcelo Tosatti <[EMAIL PROTECTED]> wrote:
> On Mon, Apr 07, 2008 at 06:34:57PM -0300, Marcelo Tosatti wrote:
>
>
> > On Mon, Apr 07, 2008 at 01:53:36PM +0200, Nikola Ciprich wrote:
> > > Hi,
> > >
> > > I also tried paravirt clock again in latest git with kvm-6
On Mon, Apr 07, 2008 at 06:34:57PM -0300, Marcelo Tosatti wrote:
> On Mon, Apr 07, 2008 at 01:53:36PM +0200, Nikola Ciprich wrote:
> > Hi,
> >
> > I also tried paravirt clock again in latest git with kvm-65 patch
> > applied, and problem with cpu-lockups persists:
> >
> > [10813.654806] BUG: sof
On Mon, 7 Apr 2008, Marcelo Tosatti wrote:
> I think the logic to wakeup tasks in HLT is racy. Nothing prevents
> a timer event from being lost if it fires in between guest exit and
> vcpu_block().
>
> Please try the patch below.
>
Hi Marcelo, the problem persists even with patch.
[ 1905.899112]
On Mon, Apr 07, 2008 at 06:34:57PM -0300, Marcelo Tosatti wrote:
> On Mon, Apr 07, 2008 at 01:53:36PM +0200, Nikola Ciprich wrote:
> > Hi,
> >
> > I also tried paravirt clock again in latest git with kvm-65 patch
> > applied, and problem with cpu-lockups persists:
> >
> > [10813.654806] BUG: sof
On Mon, Apr 07, 2008 at 01:53:36PM +0200, Nikola Ciprich wrote:
> Hi,
>
> I also tried paravirt clock again in latest git with kvm-65 patch
> applied, and problem with cpu-lockups persists:
>
> [10813.654806] BUG: soft lockup - CPU#0 stuck for 61s! [swapper:0]
> [10813.655789] CPU 0:
> [10813.65
Hi,
I also tried paravirt clock again in latest git with kvm-65 patch
applied, and problem with cpu-lockups persists:
[10813.654806] BUG: soft lockup - CPU#0 stuck for 61s! [swapper:0]
[10813.655789] CPU 0:
[10813.656624] Modules linked in: virtio_pci virtio_ring virtio_blk virtio
piix dm_snaps
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