Re: [Xen-devel] Commit dd6d87 breaks serial console

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 23.07.14 at 10:31, <roger.pau@xxxxxxxxxx> wrote:
> On 15/07/14 03:24, Zhang, Yang Z wrote:
>> It is so strange. The patch is really simple. Does Xen still alive when 
> serial console breaks? Also, can you try to add invalidate_sync one by one to 
> figure which one caused the problem?
> 
> Yes, Xen seems to work fine (apart from the serial console), I can
> access Dom0 using ssh and create guests.
> 
> The invalidate_sync that prevents this problem is the one in
> ioapic_rte_to_remap_entry, I have successfully removed the other
> invalidate_sync in msi_msg_to_remap_entry without problems.

That's meaningless, as MSI isn't involved in serial console handling.

Jan


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