* PCI passthrough regression on BSD* guests since 4.13.1
@ 2021-01-13 15:16 Samuel Verschelde
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From: Samuel Verschelde @ 2021-01-13 15:16 UTC (permalink / raw)
To: xen-devel
Hi list.
XCP-ng users have reported a regression with PCI passthrough in XCP-ng
8.2. We're using Xen 4.13.1 + patches (like Citrix Hypervisor 8.2 does)
[1].
Symptoms: after a shutdown or reboot of the VM, the passed-through
device can't be passed-through anymore.
We've build various versions of Xen with select reverted commits for
users to test, and they helped us identify commit
6a1036e28240217d1dbfcb096800313a468cdb0e [2] as what caused it.
On IRC, royger confirmed having reproduced the issue.
Best regards,
Samuel Verschelde
[1]
https://xcp-ng.org/forum/topic/4001/passthough-on-8-2-hangs-on-vm-reboot-and-stops-other-vms-passthough-devices-working
[2]
https://github.com/xen-project/xen/commit/6a1036e28240217d1dbfcb096800313a468cdb0e
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