hi...
I've managed to compile and setup a paravirtualized domU with FreeBSD 8
(SVN snapshot from 'head').
Currently I'm running into two mayor problems:
- The system time is not behaving as expected.
Example:
========
I fired the domain up at 01:43 in the morning and watch the
clock. Time passes normally within the maschine, and the
suddenly jumps back to 01:30:<VARIES>. From there on time
passes normally up to 15 minutes (the latest time I've seen
is 01:44:52).
Right now the domain is running for more than 18 hours, and the
clock still says: Tue Jan 13 01:32:52 CET 2009
Running 'ntpd' inside the domU doesn't help to solve the
problem.
If found a lot of hints for linux domU's, which say that you
need to set the sysctl 'xen.independent_wallclock' to '1' and
run 'ntpd' in the domU to keep time correct.
Does 'sysctl machdep.independent_wallclock=1' the same in
FreeBSD? (If so, this doesn' work.)
- 2-way SMP doesn't work.
When I put the line
vcpus=2
into my config file, I get the following output during
boot, and the domU is destroyed after the reboot by
the kernel:
================================================================
# xm create 00_template_8-CURRENT.XENconfig -c
Using config file "./00_template_8-CURRENT.XENconfig".
Started domain template_8-CURRENT
WARNING: loader(8) metadata is missing!
Copyright (c) 1992-2009 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 8.0-CURRENT #3: Thu Jan 8 04:34:03 CET 2009
r...@template-8_current.localdomain:/usr/obj/usr/src/sys/freebsd8_XEN
WARNING: WITNESS option enabled, expect reduced performance.
Xen reported: 1600.056 MHz processor.
Timecounter "ixen" frequency 1000000000 Hz quality 0
CPU: AMD Athlon(tm) Processor (1600.06-MHz 686-class CPU)
Origin = "AuthenticAMD" Id = 0x662 Stepping = 2
Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
AMD Features=0xc0480800<SYSCALL,MP,MMX+,3DNow!+,3DNow!>
real memory = 671088640 (640 MB)
avail memory = 649625600 (619 MB)
gdtpfn=3edd9 pdptpfn=11113
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
cpu=0 irq=0 vector=0
cpu=0 irq=0 vector=1
cpu=1 irq=0 vector=0
cpu=1 irq=0 vector=1
kbd0 at kbdmux0
xenbus0: <Xen Devices> on motherboard
xc0: <Xen Console> on motherboard
Timecounters tick every 10.000 msec
xbd0: 8192MB <Virtual Block Device> at device/vbd/768 on xenbus0
xbd0: attaching as ad0
GEOM: ad0s1: geometry does not match label (15h,63s != 255h,63s).
xn0: <Virtual Network Interface> at device/vif/0 on xenbus0
xn0: Ethernet address: 00:16:3e:06:c3:80
[XEN] netfront_backend_changed: newstate=2
Spanic: blockable sleep lock (sleep mutex) XCONS LOCK @
/usr/src/sys/dev/xen/console/console.c:290
cpuid = 1
Uptime: 1s
Cannot dump. Device not defined or unavailable.
Automatic reboot in 15 seconds - press a key on the console to abort
--> Press a key on the console to reboot,
--> or switch off the system now.
Rebooting...
================================================================
I've attached my kernelconfig file to this mail, if someone sees a
failure in it.
Any hints on how to solve these 2 problems would be really great. Using
FreeBSD in it's current state as domU really rocks. :-)))
greetz
olli
#
# XEN -- Kernel configuration for i386 XEN DomU
#
# $FreeBSD$
cpu I686_CPU
ident XEN
makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
makeoptions MODULES_OVERRIDE=""
options SCHED_ULE # ULE scheduler
options PREEMPTION # Enable kernel thread preemption
#options SCHED_4BSD
options INET # InterNETworking
#options INET6 # IPv6 communications protocols
#options SCTP # Stream Control Transmission Protocol
options FFS # Berkeley Fast Filesystem
options SOFTUPDATES # Enable FFS soft updates support
options UFS_ACL # Support for access control lists
options UFS_DIRHASH # Improve performance on big directories
#options UFS_GJOURNAL # Enable gjournal-based UFS journaling
#options NFSCLIENT # Network Filesystem Client
#options NFSSERVER # Network Filesystem Server
#options NFSLOCKD # Network Lock Manager
#options NFS_ROOT # NFS usable as /, requires NFSCLIENT
#options MSDOSFS # MSDOS Filesystem
options CD9660 # ISO 9660 Filesystem
options PROCFS # Process filesystem (requires PSEUDOFS)
options PSEUDOFS # Pseudo-filesystem framework
options GEOM_PART_GPT # GUID Partition Tables.
options GEOM_LABEL # Provides labelization
options COMPAT_43TTY # BSD 4.3 TTY compat (sgtty)
options COMPAT_FREEBSD4 # Compatible with FreeBSD4
options COMPAT_FREEBSD5 # Compatible with FreeBSD5
options COMPAT_FREEBSD6 # Compatible with FreeBSD6
options COMPAT_FREEBSD7 # Compatible with FreeBSD7
options KTRACE # ktrace(1) support
options STACK # stack(9) support
options SYSVSHM # SYSV-style shared memory
options SYSVMSG # SYSV-style message queues
options SYSVSEM # SYSV-style semaphores
options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time
extensions
options KBD_INSTALL_CDEV # install a CDEV entry in /dev
options AUDIT # Security event auditing
# Debugging for use in -current
#options KDB # Enable kernel debugger support.
#options DDB # Support DDB.
#options GDB # Support remote GDB.
#options INVARIANTS # Enable calls of extra sanity checking
#options INVARIANT_SUPPORT # Extra sanity checks of internal
structures, required by INVARIANTS
options WITNESS # Enable checks to detect deadlocks and
cycles
#options WITNESS_SKIPSPIN # Don't run witness on spinlocks for
speed
options PAE
nooption NATIVE
option XEN
nodevice atpic
nodevice isa
options MCLSHIFT=12
# To make an SMP kernel, the next two lines are needed
options SMP # Symmetric MultiProcessor Kernel
device apic # I/O APIC
device atkbdc # AT keyboard controller
device atkbd # AT keyboard
device psm # PS/2 mouse
device pci
device kbdmux # keyboard multiplexer
# Pseudo devices.
device loop # Network loopback
device random # Entropy device
device ether # Ethernet support
device tun # Packet tunnel.
device pty # Pseudo-ttys (telnet etc)
#device md # Memory "disks"
#device gif # IPv6 and IPv4 tunneling
#device faith # IPv6-to-IPv4 relaying (translation)
# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
# Note that 'bpf' is required for DHCP.
device bpf # Berkeley packet filter
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