[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Re: Vertualization of Unmodified Operating Systems
Ian Pratt wrote: >>>Xen and OpenBSD running under Xen are rapidly rising to the >> >>top of my >> >>>list of things to work with as general availability of AM2-socket >>>motherboards and revision F AMD64 chips approaches. Xen and >> >>hardware >> >>>virtualization have been for a while now at the very top of >> >>the list of topics I follow in the news. >> >>OpenBSD 3.9 works quite fine (installed using the native >>installer in the virtualized environment!) as an unmodified >>guest on my Intel VT box, with following caveats: >> >>*) pcn(4) - aka AMD Pcnet does not seem to work well with the >>emulated one (send works - receive does not) >> >>*) ne(4) does work but is complaining about corrupted nic >>memory under heavy traffic (does not seem to affect it much >>other than logging th errors) > > > Thanks for the success report. We haven't been testing OpenBSD so its > useful to hear it works OK. > > I'd be interested to hear whether pcnet32 works under the latest version > of qemu, in which case it should be easy to fix on xen/vt. > > Also, are you using a 32, 32p, or 64 bit hypervisor? Have you tried > other combinations? (I'm guessing you're using a 32b guest, but do you > have pae enabled?) > Have you tried other combinations? Are there any stress tests you can > run to give it a good workout? played a bit with various combinations (after upgrading to a 64 bit hypervisor) and it looks like I'm hitting some issues (not too surprising): *) a 32b guest seems to continue to work though starting more than one (either another OpenBSD instance or WindowsXP) seems to completely freeze the whole box (no logs or errors - just freezes). Starting a single unmodified guest does not seem to trigger that issue ... *) trying to install a 64bit guest segfaults qemu-dm when the installer tries to boot the initial kernel: qemu-dm[5117]: segfault at 00002ab60f896008 rip 00002ab5efa21040 rsp 00007fffffcb8f48 error 4 this on should be quite easy to reproduce by downloading ftp://ftp.openbsd.org/pub/OpenBSD/snapshots/amd64/cd39.iso (4MB) and using that as "cdrom" in the configfile. Boot from there and watch the VNC connection dying a few seconds later :-) all this testing is with a checkout of the xen-unstable tree from a day ago or so on a Pentium D920 box. Stefan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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