Date: Tue, 18 May 2021 20:45:42 -0600 From: "John Doherty" <bsdlists@jld3.net> To: "Rodney W. Grimes" <freebsd-rwg@gndrsh.dnsmgr.net> Cc: freebsd-virtualization@freebsd.org Subject: Re: increasing bhyve VM_MAXCPU Message-ID: <13804A0B-E22F-4C02-BFFF-2C1EFF214EC3@jld3.net> In-Reply-To: <202105190121.14J1L3BV001126@gndrsh.dnsmgr.net> References: <202105190121.14J1L3BV001126@gndrsh.dnsmgr.net>
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On 18 May 2021, at 19:21, Rodney W. Grimes wrote: >> I'm experimenting with bhyve VMs with more than 16 vCPUs on FreeBSD >> I began working on a machine with only eight CPU cores/threads, so >> rather than trying to increase VM_MAXCPU, I tried to decrease it, which >> seemed to work fine. My procedure was: >> >> edit /usr/src/sys/amd64/include/vmm.h > > cp /usr/src/sys/amd64/include/vmm.h /usr/include/machine/vmm.h Thanks so much for this. Things are now working fine, e.g.: [root@fbsd1] # grep 'Multiprocessor System Detected' /var/run/dmesg.boot FreeBSD/SMP: Multiprocessor System Detected: 24 CPUs
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