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0 pointswalterbell10y ago0 comments

This March 2015 post lists some known work items, http://www.joelroberts.org/openbsd/

  - Kernel hangs when bringing online additional cpus--no working SMP
  - PV drivers for net and disk needed. Probably easy to take from NetBSD
  - System needs testing for stability

An old (2012?) comparison of 4 BSDs on Xen and KVM: https://gmplib.org/~tege/virt.html

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4 comments · 2 top-level

dfsfcv10y ago· 2 in thread

From the link above comparing BSDs on Xen:

"OpenBSD probably works poorly by design, since its lead developer despises virtualisation."

I have seen this before. Can someone summarise the reasons why Theo de Raadt hates virtualisation?

wmf10y ago

Basically he thinks any hypervisor that isn't OpenBSD is not secure.

"x86 virtualization is about basically placing another nearly full kernel, full of new bugs, on top of a nasty x86 architecture which barely has correct page protection. Then running your operating system on the other side of this brand new pile of shit." http://marc.info/?l=openbsd-misc&m=119318909016582

(I see justinsaccount already posted this below.)

archimedespi10y ago

That's quite true, except that even OpenBSD is not _necessarily_ secure as a hypervisor.

jrelsasser10y ago

I believe that Xen SMP hang was fixed in 5.8:

http://comments.gmane.org/gmane.os.openbsd.cvs/143877

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