Is serial port "passthrough" possible for the version of xen that ships with centos 5.2?
I've disabled the xen hypervisor serial console, and can see the serial port in dom0. I've masked out the 8250, 8250_pnp and serial_core modules on dom0 and rebooted. xm create domain fails with the error that exactly 4 arguments are required and only 3 were given.
Steps I followed:
1) I have xencons=off as a kernel arg for dom0, and when dom0 boots, it finds the serial port.
2) I have blacklisted 8250, 8250_pnp and serial_core, rebooted, no serial port under dom0
3) added the following to my domu config (domu is 32bit centos 5.2, pvm) addirq = [ 4 ] ioports = [ "3f8-3ff" ]
4) now to start the vm and see what happens: # xm create mythserver Using config file "./mythserver". Error: function takes exactly 4 arguments (3 given)
My host is 64 bit centos 5.2, domu is 32 bit centos 5.2. I'm running the stock redhat version of xen that ships with el5.2
Any suggestions?
-Gordon
# uname -a Linux xenmaster.dimension-x.local 2.6.18-92.1.22.el5xen #1 SMP Tue Dec 16 12:26:32 EST 2008 x86_64 x86_64 x86_64 GNU/Linux
# xm log [2009-03-28 18:09:41 xend 8017] ERROR (xmlrpclib2:184) function takes exactly 4 arguments (3 given) Traceback (most recent call last): File "/usr/lib64/python2.4/site-packages/xen/util/xmlrpclib2.py", line 162, in _marshaled_dispatch response = self._dispatch(method, params) File "/usr/lib64/python2.4/SimpleXMLRPCServer.py", line 406, in _dispatch return func(*params) File "/usr/lib64/python2.4/site-packages/xen/xend/server/XMLRPCServer.py", line 64, in domain_create info = XendDomain.instance().domain_create(config) File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomain.py", line 238, in domain_create dominfo = XendDomainInfo.create(config) File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 205, in create vm.initDomain() File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 1507, in initDomain self.createDevices() File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 1716, in createDevices self.createDevice(n, c) File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 1189, in createDevice return self.getDeviceController(deviceClass).createDevice(devconfig) File "/usr/lib64/python2.4/site-packages/xen/xend/server/DevController.py", line 80, in createDevice (devid, back, front) = self.getDeviceDetails(config) File "/usr/lib64/python2.4/site-packages/xen/xend/server/iopif.py", line 78, in getDeviceDetails allow_access = True) TypeError: function takes exactly 4 arguments (3 given)
Full pvm config file: # cat /etc/xen/mythserver name = "mythserver" uuid = "f06f3124-0f62-9ea6-ae2e-df597103b5de" maxmem = 1024 memory = 512 vcpus = 2 bootloader = "/usr/bin/pygrub" on_poweroff = "destroy" on_reboot = "restart" on_crash = "restart" vfb = [ "type=vnc,vncunused=1,keymap=en-us" ] disk = [ "phy:/dev/vg0/xen_mythserver,xvda,w" ] vif = [ "mac=00:16:3e:0a:bf:d8,bridge=xenbr0" ] pci = [ "0000:05:02.0","0000:06:08.0","0000:06:09.0" ] addirq = [ 4 ] ioports = [ "3f8-3ff" ]
# xm info host : xenmaster.dimension-x.local release : 2.6.18-92.1.22.el5xen version : #1 SMP Tue Dec 16 12:26:32 EST 2008 machine : x86_64 nr_cpus : 8 nr_nodes : 1 sockets_per_node : 2 cores_per_socket : 4 threads_per_core : 1 cpu_mhz : 1995 hw_caps : bfebfbff:20100800:00000000:00000140:040ce33d:00000000:00000001 total_memory : 16382 free_memory : 784 node_to_cpu : node0:0-7 xen_major : 3 xen_minor : 1 xen_extra : .2-92.1.22.el5 xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64 xen_pagesize : 4096 platform_params : virt_start=0xffff800000000000 xen_changeset : unavailable cc_compiler : gcc version 4.1.2 20071124 (Red Hat 4.1.2-42) cc_compile_by : mockbuild cc_compile_domain : centos.org cc_compile_date : Tue Dec 16 11:51:08 EST 2008 xend_config_format : 2