Hi Roger,
Last week I encountered an issue with the PCI-passthrough of a USB controller.
In the guest I get:
[ 1143.313756] xhci_hcd 0000:00:05.0: xHCI host not responding to stop
endpoint command.
[ 1143.334825] xhci_hcd 0000:00:05.0: xHCI host controller not responding,
assume dead
[ 1143.347364] xhci_hcd 0000:00:05.0: HC died; cleaning up
[ 1143.356407] usb 1-2: USB disconnect, device number 2
Bisection turned up as the culprit:
commit 5500d265a2a8fa63d60c08beb549de8ec82ff7a5
x86/smp: use APIC ALLBUT destination shorthand when possible
I verified by reverting that commit and now it works fine again.
Box is AMD, guest is a HVM.
--
Sander
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