Thanks for your help. I have at least one distro version running in both dom0 and dom1. (The sshd hadn''t been started ... sheepish grin) One of my targets is to test the NXserver one a vm domain. The NX server-client system supports a full remote KDE session. This would be a very intgersting combination. My first run was bumppy. This does run through a ssh tunnel. Has anyone tried NX yet? I am having trouble with the two Xandros distros. The 2.6.8.1-xenU kernel boots to this point: ----- Freeing unused kernel memory: 92k freed Warning: unable to open an initial console. ioperm not fully supported - set iopl to 3 ------ The console freezes. The instance shows on the ''xm list''. xm console xxxx results in: Cannot connect to console 12 in domain 1 extra="console=tty0" is set in the config file. Any suggestions? ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
> Thanks for your help. I have at least one distro version running in both > dom0 and dom1. (The sshd hadn''t been started ... sheepish grin) > > One of my targets is to test the NXserver one a vm domain. The NX > server-client system supports a full remote KDE session. This would be a > very intgersting combination. My first run was bumppy. This does run > through a ssh tunnel. Has anyone tried NX yet?I haven''t tried NX, but there''s no reason why it shouldn''t work just fine. It''s arguable that since you have plenty of bandwidth between VMs you''d be better off using a less complex protocol such as VNC, or just plain X.> I am having trouble with the two Xandros distros. The 2.6.8.1-xenU kernel > boots to this point: > > ----- > Freeing unused kernel memory: 92k freed > Warning: unable to open an initial console. > ioperm not fully supported - set iopl to 3 > ------It looks like you''re not getting message sent to /dev/console. I don''t think you need the extra="console=tty0" -- it should be the default. Can you post the output of trying to create the domain with the ''-n'' flag to do a dry run and print the final config.> The console freezes. > > The instance shows on the ''xm list''. > > xm console xxxx results in: > Cannot connect to console 12 in domain 1This might be because the console is still connected on the other terminal. Ian ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
> I am having trouble with the two Xandros distros. The 2.6.8.1-xenU kernel > boots to this point: > > ----- > Freeing unused kernel memory: 92k freed > Warning: unable to open an initial console. > ioperm not fully supported - set iopl to 3 > ------ > > The console freezes. > > The instance shows on the ''xm list''.In what state? Blocked (''b'')? It may be that Xandros'' init program depends on being able to access some piece of hardware that is inaccessible in an unprivileged domain. We had a report that Gentoo''s init program has problems too, although that was a long while ago. My approach to debugging this would probably be to download the Xandros init program''s source and add print tracing to it to see where it fails. The best fix may then be to submit patches to Xandros. :-)> xm console xxxx results in: > Cannot connect to console 12 in domain 1Did you disconnect the old ''frozen'' console session with CTRL-] ?? -- Keir ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
> One of my targets is to test the NXserver one a vm domain. The NX > server-client system supports a full remote KDE session. This would be a > very intgersting combination. My first run was bumppy. This does run > through a ssh tunnel. Has anyone tried NX yet?Performance with VNC was OK when we tried it (like Ian said). In fact we turned off compression in order to minimise the overheads, given interdomain networking should be wicked-fast. I haven''t tried NX on Xen (waiting for a feature-complete FreeNX to become readily available), although I very impressed by it''s performance when I tried it internationally via the internet. It''d be interesting to see how well it performs between domains, particularly in comparison to other systems like VNC. In any case, it still has the advantages of remote printing + sound + file sharing. Cheers, Mark ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
----->> Freeing unused kernel memory: 92k freed >> Warning: unable to open an initial console. >> ioperm not fully supported - set iopl to 3 >> ------ > >It looks like you''re not getting message sent to /dev/console. > >I don''t think you need the extra="console=tty0" -- it should be >the default. > >Can you post the output of trying to create the domain with the >''-n'' flag to do a dry run and print the final config. >Using config file "/etc/xen/xmdefconfig". (vm (name Xserver) (memory 64) (image (linux (kernel /boot/vmlinuz-2.6.8.1-xenU) (ip 192.168.1.61:1.2.3.4:192.168.1.254:255.255.255.0::eth0:off) (root /dev/hdb1) (args 4) ) ) (device (vbd (uname phy:hdb1) (dev hdb1) (mode w))) (device (vif (mac aa:00:00:2f:59:44))) )>> The console freezes. >> >> The instance shows on the ''xm list''. >> >> xm console xxxx results in: >> Cannot connect to console 12 in domain 1 > >This might be because the console is still connected on the other >terminal. >after terminating the other frozzed console, I get this on xm console ************ REMOTE CONSOLE: CTRL-] TO QUIT ******** ioperm not fully supported - set iopl to 3 This message is occasionally followed by: warning: process `update'' used the obsolete bdflush system call Fix your initscripts? ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
> > I am having trouble with the two Xandros distros. The 2.6.8.1-xenU kernel > > boots to this point: > > > > ----- > > Freeing unused kernel memory: 92k freed > > Warning: unable to open an initial console. > > ioperm not fully supported - set iopl to 3 > > ------ > It may be that Xandros'' init program depends on being able to access > some piece of hardware that is inaccessible in an unprivileged > domain. We had a report that Gentoo''s init program has problems too, > although that was a long while ago.I wander if we''d learn anything by starting /sbin/init under strace ? I''ve never tried this before, but it might be worth a try. add "init=/linuxrc" on the command line, then create a shell script that does "strace /sbin/init". You might have to redirect stderr to stdout. Dropping down an /sbin/init from Debian/RedHat/SuSE might be interesting too. Ian ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
> >Performance with VNC was OK when we tried it (like Ian said). In fact we >turned off compression in order to minimise the overheads, giveninterdomain>networking should be wicked-fast. > >I haven''t tried NX on Xen (waiting for a feature-complete FreeNX to become>readily available), although I very impressed by it''s performance when I >tried it internationally via the internet. It''d be interesting to see how>well it performs between domains, particularly in comparison to othersystems>like VNC. In any case, it still has the advantages of remote printing + >sound + file sharing. > >Cheers, >Mark >Well, so far NX performs like shit, but I suspect something else may be the problem. I notice on the dom1 run that top reports no swap file at all. If this is true, I would expect bad performance. Does a vm see the swap partitions? How are they defined to a vm? ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
> Well, so far NX performs like shit,:-( I found it was snappy talking to a machine in Italy over a mere cable modem, so it should work fine. Out of interest, what NX are you running, NoMachine''s server / client of FreeNX / kNX?> but I suspect something else may be the > problem. I notice on the dom1 run that top reports no swap file at all. > If this is true, I would expect bad performance. Does a vm see the swap > partitions? How are they defined to a vm?A VM sees it''s own swap partitions, if you''ve configured any. You need to give them a virtual disk to swap to (same procedure as for creating the root filesystem device), mkswap on it and add it to their fstab so that they use it. Cheers, Mark ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
> -----Original Message----- > From: xen-devel-admin@lists.sourceforge.net [mailto:xen-devel- > admin@lists.sourceforge.net] On Behalf Of Tom Cranbrook > Sent: 27 September 2004 23:39 > To: Mark A. Williamson; xen-devel@lists.sourceforge.net; > tcranbrook@australia.edu > Subject: Re: [Xen-devel] Follow-up > > > > >Performance with VNC was OK when we tried it (like Ian said). Infact we> >turned off compression in order to minimise the overheads, given > interdomain > >networking should be wicked-fast. > > > >I haven''t tried NX on Xen (waiting for a feature-complete FreeNX to > become > > >readily available), although I very impressed by it''s performancewhen I> >tried it internationally via the internet. It''d be interesting tosee> how > > >well it performs between domains, particularly in comparison to other > systems > >like VNC. In any case, it still has the advantages of remoteprinting +> >sound + file sharing. > > > >Cheers, > >Mark > > > > Well, so far NX performs like shit, but I suspect something else maybe> the > problem. I notice on the dom1 run that top reports no swap file atall.> If this is true, I would expect bad performance. Does a vm see theswap> partitions? How are they defined to a vm? >You can give access to any other partition using the config file in the same way you give access to the root partition. You can''t share the same swap partition amongst different VMs so you have to create one for each VM. You''d also need to adjust /etc/fstab to whatever partition you decide to map the physical swap partition. However, I wouldn''t expect performance to be "shit" because of no swap file. If you''d run out of physical memory (ie need swap) Linux would complain and not just run slower...so the problem is probably be elsewhere. As Ian said, we don''t really have experience with NX but have used vnc with reasonable performance. Rolf> > > > > > ------------------------------------------------------- > This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 > Project Admins to receive an Apple iPod Mini FREE for your judgementon> who ports your project to Linux PPC the best. Sponsored by IBM. > Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/xen-devel------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
>> > I am having trouble with the two Xandros distros. The >> It may bethat Xandros'' init program depends on being able to access>> some piece of hardware that is inaccessible in an unprivileged >> domain. We had a report that Gentoo''s init program has problems too, >> although that was a long while ago. > >I wander if we''d learn anything by starting /sbin/init under >strace ? > >I''ve never tried this before, but it might be worth a try. > >add "init=/linuxrc" on the command line, then create a shell >script that does "strace /sbin/init". You might have to redirect >stderr to stdout. > >Dropping down an /sbin/init from Debian/RedHat/SuSE might be >interesting too. >Xandros 1.5 is using the plain vanilla sysvinit 2.84-2woody1 deb package, so there shouldn''t be anything wierd there. Nothing strange in the inittab either. All standard stuff.>Ian >------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel