On 12/04/2015 02:42 PM, Jan Beulich wrote:
On 04.12.15 at 15:01, <ross.lagerw...@citrix.com> wrote:
Commit fc0c3fa2ad5c ("x86/IO-APIC: fix setup of Xen internally used IRQs
(take 2)") introduced a regression on some hardware where Xen would hang
during shutdown, repeating the following message:
APIC error on CPU0: 08(08), Receive accept error
This appears to be because an interrupt (in this case from the serial
console) destined for a CPU other than the boot CPU is left unhandled so
an APIC error on CPU 0 is generated instead.
To fix this, before taking down the non-boot CPUs, call fixup_irqs()
with a CPU mask of only the boot CPU to reset the IRQ affinities
correctly.
Signed-off-by: Ross Lagerwall <ross.lagerw...@citrix.com>
Reviewed-by: Jan Beulich <jbeul...@suse.com>
Is this going to go onto staging?
Thanks,
--
Ross Lagerwall
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