Date: Thu, 19 Mar 2026 12:21:10 +0100 From: Miroslav Lachman <000.fbsd@quip.cz> To: Nikos Vassiliadis <nvass@gmx.com>, freebsd-current@FreeBSD.org Subject: Re: guest kernel fails to start when cpuset is used Message-ID: <05fbcbb9-be80-4ea4-818c-1e343e1f9305@quip.cz> In-Reply-To: <882fe6bb-3870-4ce7-bd5a-7f50a9ae5774@gmx.com>
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On 19/03/2026 11:39, Nikos Vassiliadis wrote: > Hi, > > I was trying to limit a 12-core VM with cpuset. So I limited it to 0-5 > cores and the kernel seems to fail to start. [..] > ACPI APIC Table: <BHYVEÂ BVAPIC > > FreeBSD/SMP: Multiprocessor System Detected: 12 CPUs > FreeBSD/SMP: 12 package(s) x 1 core(s) > random: unblocking device. > ioapic0 <Version 1.1> irqs 0-31 > Launching APs: 2 8 6 11 10 9 3 4 7 5 1 > > And it stays there spinning. > > Any ideas? I don't think this is a good idea. Why not use -c a -p options for bhyve? -c <num_of_cores> -p vcpu:hostcpu Pin guest's virtual CPU vcpu to hostcpu Kind regards Miroslav Lachmanhome | help
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