[Xen-devel] Xen-unstable: regression when trying to shutdown HVM guest with pci passthrough

[Sander Eikelenboom <linux@xxxxxxxxxxxxxx>]

Hi Anthony,

While testing I encountered a problem with my HVM guests which use pci 
passthrough.
When trying to shutdown the guest it will stay in the "---s--" runstate 
indefinitely.

On the guest console I get:
    [  518.587669] xenbus: xenbus_dev_shutdown: device/pci/0: Initialising != 
Connected, skipping
    [  518.674870] ACPI: Preparing to enter system sleep state S5
    [  518.683952] reboot: Power down

When trying to destroy the stuck guest I get:
        libxl: error: libxl_domain.c:1165:destroy_domid_pci_done: Domain 9:Pci 
shutdown failed
        libxl: error: libxl_domain.c:1089:domain_destroy_callback: Domain 
9:Unable to destroy guest
        libxl: error: libxl_domain.c:1016:domain_destroy_cb: Domain 
9:Destruction of domain failed destroy failed (rc=-9)

Bisection turned up commit fae4880c45fe015e567afa223f78bf17a6d98e1b "libxl_pci: 
Use ev_qmp for pci_remove" as the culprit.

--
Sander

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