On Wed, 2005-07-13 at 00:44 +0200, Vincent Hanquez wrote:
> On Tue, Jul 12, 2005 at 01:09:09PM -0500, David F Barrera wrote:
> > I am seeing a problem with Dom0 crashing on x86_64 whenever I create a
> > DomU. I've done some more testing, and it appears that this problem is
> > somehow related to networking. Dom0 crashes as soon as the networking
> > services are started when DomU is coming up. As an experiment, I
> > brought up DomU without networking, and it stayed up. As soon as I
> > started DomU with networking enabled, however, Dom0 crashed. Below is
> > the trace:
>
> Hi David,
>
> I'm quite confused by other reports.
> Your latest "Daily Xen build" and Paul Larson's reply suggest that this
> bug was fix.
Vincent,
I understand. My report did suggest that the problem was fixed; however,
it was incorrect, as I later found out. It turns out that the DomU that
I had created did not have networking setup properly, thus the VM seemed
functional. When I corrected the networking setup and started a DomU,
Dom0 crashed. By the way, I just did it today, and the same thing is
happening--Dom0 is crashing. This is the trace that I see on the serial
console:
Unable to handle kernel NULL pointer dereference at 0000000000000c20
RIP:
<ffffffff80118aba>{do_page_fault+426}
PGD d313067 PUD d312067 PMD 0
Oops: 0000 [1]
CPU 0
Modules linked in: thermal processor fan button battery ac
Pid: 0, comm: swapper Not tainted 2.6.12-xen0
RIP: e030:[<ffffffff80118aba>] <ffffffff80118aba>{do_page_fault+426}
RSP: e02b:ffffffff8054ba00 EFLAGS: 00010202
RAX: 00000000013e4067 RBX: 0000000000000c20 RCX: 0000000000000000
RDX: 0000000000000067 RSI: 00000000093e4067 RDI: ffff800000000000
RBP: 0000000000000c20 R08: 00000000000000ff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: ffffc20000036000 R14: 0000000000000000 R15: ffffffff8054bb00
FS: 0000000000000000(0000) GS:ffffffff80537b80(0000)
knlGS:0000000000000000
CS: e033 DS: 0000 ES: 0000
Process swapper (pid: 0, threadinfo ffffffff8054a000, task
ffffffff80435680)
Stack: ffff88000f414000 fff݅
>
> As well, is that on SLES9 userspace ?
>
> Cheers,
--
Regards,
David F Barrera
Linux Technology Center
Systems and Technology Group, IBM
"The wisest men follow their own direction. "
Euripides
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