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Re: [Xen-devel] Xeno-unstable crashing at boot

  • To: Mike Wray <mike.wray@xxxxxx>
  • From: Christian Limpach <christian.limpach@xxxxxxxxx>
  • Date: Tue, 17 May 2005 11:29:21 +0100
  • Cc: Ian Pratt <m+Ian.Pratt@xxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Tue, 17 May 2005 10:28:50 +0000
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On 5/17/05, Mike Wray <mike.wray@xxxxxx> wrote:
> >  "make clean; make debug=y dist" should do it.
> >
> >
> >>Can you suggest what a good place 'earlier in the failure
> >>path' might be?
> >
> > I expect you'll get an error message from Xen before the BUG in domain
> > crash. See where the error message comes from, and then add the
> > show_guest_stack to the appropriate path.
> A debug build gave the following crash.
> It's different, a page fault, but there's no previous error message
> that lets me see where to put the show_guest_stack.

The guest stack is now always printed when dom0 fails, which is why
you get a more relevant error message.

Could you please add "earlyprintk=serial" to the linux command line
options (CONFIG_EARLY_PRINTK should be enabled in your kernel config
file by default -- if not, please enable it) and add a call do
dump_stack() at the beginning of acpi_table_compute_checksum in
linux-2.6.11-xen-sparse/drivers/acpi/tables.c.  Thanks!


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