[Bug 261059] Kernel panic XEN + ZFS volume.

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261059

Roger Pau Monné <royger@freebsd.org> changed:

           What    |Removed                     |Added
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                 CC|                            |royger@freebsd.org

--- Comment #3 from Roger Pau Monné <royger@freebsd.org> ---
Using only 2GB of memory for dom0 together with ZFS is likely too less, you
should use at least 4GB of memory for dom0 when using ZFS. Try to change the
line:

xen_cmdline="dom0_mem=2048M cpufreq=dom0-kernel dom0_max_vcpus=2 dom0=pvh
console=vga,com1 com1=9600,8n1 guest_loglvl=all loglvl=all"

To:

xen_cmdline="dom0_mem=4096M dom0_max_vcpus=2 dom0=pvh console=vga,com1
com1=9600,8n1 guest_loglvl=all loglvl=all"

Note that cpufreq=dom0-kernel is likely not functional, and also not a good
idea. The FreeBSD dom0 kernel has no idea about the real load of the system, as
it doesn't see the load created by VMs. Xen (the hypervisor) is the only one
that has the full picture of the system.

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