On 2015-12-21 23:58, xen-devel-requ...@lists.xen.org wrote:
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Today's Topics:
1. hvc console not working on 4.4.0 guest (M A Young)
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
error.
Michael Young
Hi Michael,
Yes it's a known problem, the patch for it was just accepted into the
tip tree:
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?h=x86/urgent&id=d8c98a1d1488747625ad6044d423406e17e99b7a
So it will land in 4.4-final, the 2 patches causing this regression were
unfortunately also already backported
to the stable trees (despite objection), but hopefully the fix wil also
hit stable in the next round.
--
Sander
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