http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1379
Summary: [VT-d] failed to reassign some PCI-e NICs
Product: Xen
Version: unstable
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P1
Component: Unspecified
AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
ReportedBy: haicheng.li@xxxxxxxxx
1st attachment is the detailed NIC pci info.
For the first time, it is successful to assign this NIC to guest. but at the
second time, it will complains as following:
Error: pci: failed to locate device and parse it's resources - ord() expected a
character, but string of length 0 found.
after this failure, command "xm pci-list-a" becomes invalid and it prints some
python related errors:
Unexpected error: exceptions.TypeError
Please report to xen-devel@xxxxxxxxxxxxxxxxxxx
Traceback (most recent call last):
File "/usr/sbin/xm", line 10, in ?
main.main(sys.argv)
File "/usr/lib64/python/xen/xm/main.py", line 2884, in main
_, rc = _run_cmd(cmd, cmd_name, args)
File "/usr/lib64/python/xen/xm/main.py", line 2908, in _run_cmd
return True, cmd(args)
File "/usr/lib64/python/xen/xm/main.py", line 2200, in
xm_pci_list_assignable_devices
dev_list = find_all_devices_owned_by_pciback()
File "/usr/lib64/python/xen/util/pci.py", line 247, in
find_all_devices_owned_by_pciback
dev = PciDevice(dom, b, d, f)
File "/usr/lib64/python/xen/util/pci.py", line 389, in __init__
self.get_info_from_sysfs()
File "/usr/lib64/python/xen/util/pci.py", line 814, in get_info_from_sysfs
self.find_capability(0x11)
File "/usr/lib64/python/xen/util/pci.py", line 773, in find_capability
capa_pointer = ord(conf_file.read(1))
TypeError: ord() expected a character, but string of length 0 found
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