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Date:      Sat, 14 Oct 2017 02:21:20 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-virtualization@FreeBSD.org
Subject:   [Bug 222916] [bhyve] Debian guest kernel panics with message "CPU#0 stuck for Xs!"
Message-ID:  <bug-222916-27103-zzfp3y3KLR@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-222916-27103@https.bugs.freebsd.org/bugzilla/>
References:  <bug-222916-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D222916

--- Comment #4 from Peter Grehan <grehan@FreeBSD.org> ---
Single vCPU guests perform very well in oversubscribed environments since t=
here
are no lock-spins against other possibly de-scheduled vCPUs. However, you s=
till
may hit the ZFS memory competition issue. Note that you can set the ARC-max=
 on
the fly in 11.1 and avoid the reboot, using the vfs.zfs.arc_max sysctl var.=
 ZFS
should slowly drop down to this value if it is above it.

>not sure if you want to mark the bug as closed

Fine to keep this open until the issue is resolved.

--=20
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