Xen HVM Panic, HEAD

Sean Bruno sbruno at ignoranthack.me
Thu Feb 19 22:22:52 UTC 2015


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> 
> This panic starts at: 
> https://svnweb.freebsd.org/base?view=revision&revision=278473
> 
> If I use 278472, I can boot the Xen VM normally.
> 
> If I use head and set hw.x2apic_enable="0" in loader.conf and boot 
> head (278970), it boots normally.
> 
> Second issue:
> 
> However, the UFS disk access is SO slow on this that it took
> 2+hours to do an installworld, which I couldn't abort because it
> had already started.  I'm not sure if the UFS disk access is
> related at all or not.  Once things are read from disk into memory
> they are fast and responsive (e.g. sshd, tmux, shells, etc).
> 
> sean
> 
> bcc royger

Maybe helpful, verbose dmesg on bootup with x2apic disabled:

https://people.freebsd.org/~sbruno/xen_dmesg_verbose.txt

sean


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