Re: [Xen-devel] Xen-unstable: problems with qmp socket error in libxl_pci teardown path for HVM guest with PCI passthrough

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

create ^
title it QMP connection problems prevent libxl from calling 
libxl__device_pci_reset on domain shutdown
thanks

On Wed, 26 Nov 2014, Sander Eikelenboom wrote:
> Hi,
> 
> While testing a patch for Konrad i was wondering why "libxl_pci.c: 
> libxl__device_pci_reset()"
> doesn't get called on guest shutdown of a HVM guest (qemu-xen) with pci 
> passthrough.
> xl didn't show any problems on the commandline so i never drawed much 
> attention 
> to it, but /var/log/xen/xl-guest.log shows:
> 
>     Waiting for domain xbmc13sid (domid 19) to die [pid 20450]
>     Domain 19 has shut down, reason code 0 0x0
>     Action for shutdown reason code 0 is destroy
>     Domain 19 needs to be cleaned up: destroying the domain
>     libxl: error: libxl_qmp.c:443:qmp_next: Socket read error: Connection 
> reset by peer
>     libxl: error: libxl_qmp.c:701:libxl__qmp_initialize: Failed to connect to 
> QMP
>     libxl: error: libxl_pci.c:1242:do_pci_remove: libxl__qmp_pci_del: 
> Connection reset by peer
>     libxl: error: libxl_dm.c:1575:kill_device_model: Device Model already 
> exited
>     Done. Exiting now
> 
> So it doesn't even get to calling  "libxl_pci.c: libxl__device_pci_reset()".
> 
> --
> Sander
> 

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