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[Xen-devel] hvc console not working on 4.4.0 guest

I am testing Fedora rawhide in a xen pv guest and I get the error
[    9.809550] genirq: Flags mismatch irq 8. 00000000 (hvc_console) vs. 
00000000 (rtc0)
[    9.809714] hvc_open: request_irq failed with rc -16.
during the boot and the hvc console doesn't respond when the boot 
finishes. I have noticed this I think since the update through various 
linux 4.4.0 kernels up to the current 4.4.0-0.rc5.git3.1.fc24.x86_64 one.
I do get an hvc console if I use the Fedora 23 kernel 4.2.6-300.fc23.x86_64
from before the update.
Is this a known problem? I have attached the boot log up to the above 

        Michael Young

Attachment: hvc.boot.txt
Description: Text document

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