Hi,
Using D3hot state of PCI devices in xen is not mature yet.
I met domain destruction/creation troubles in some PCI cards since the
PCI config registers can't be read with D3hot state. xend.log is attached.
This patch set makes the management of PCI D-states by guest optional.
The default is "pci_power_mgmt=0" which disables the guest OS from
managing D-states because it would be better to avoid the trouble than
advantage of low power consumption.
Thanks,
Kouya
>From xend.log:
[2009-03-04 09:49:24 4356] ERROR (XendDomainInfo:2584) XendDomainInfo.destroy:
domain destruction failed.
Traceback (most recent call last):
File "/usr/lib64/python/xen/xend/XendDomainInfo.py", line 2578, in destroy
do_FLR(self.domid)
File "/usr/lib64/python/xen/xend/XendDomainInfo.py", line 314, in do_FLR
raise VmError("pci: failed to locate device and "+
VmError: pci: failed to locate device and parse it's resources - ord() expected
a character, but string of length 0 found
...[snip]...
[2009-03-04 10:31:24 4343] ERROR (XendDomainInfo:2445)
XendDomainInfo.initDomain: exception occurred
Traceback (most recent call last):
File "/usr/lib64/python/xen/xend/XendDomainInfo.py", line 2437, in _initDomain
self._createDevices()
File "/usr/lib64/python/xen/xend/XendDomainInfo.py", line 2049, in
_createDevices
devid = self._createDevice(devclass, config)
File "/usr/lib64/python/xen/xend/XendDomainInfo.py", line 2016, in
_createDevice
return self.getDeviceController(deviceClass).createDevice(devConfig)
File "/usr/lib64/python/xen/xend/server/DevController.py", line 67, in
createDevice
self.setupDevice(config)
File "/usr/lib64/python/xen/xend/server/pciif.py", line 399, in setupDevice
raise VmError("pci: failed to locate device and "+
VmError: pci: failed to locate device and parse it's resources - ord() expected
a character, but string of length 0 found
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