Date: Thu, 15 Dec 2016 08:20:32 +0100 From: "Hoyer-Reuther, Christian" <Christian.Hoyer-Reuther@cac-chem.de> To: =?iso-8859-1?Q?=27Roger_Pau_Monn=E9=27?= <roger.pau@citrix.com> Cc: "freebsd-xen@freebsd.org" <freebsd-xen@freebsd.org>, "owner-freebsd-xen@freebsd.org" <owner-freebsd-xen@freebsd.org> Subject: Re: 11-RELEASE and live migration Message-ID: <41E487BC91654544B2B8F31096F2D9D4D1B060ABBF@ex1> In-Reply-To: <20161214140224.rbg5h3v2opa3q3sj@dhcp-3-221.uk.xensource.com> References: <001f01d250a6$05ca4160$115ec420$@ezwind.net> <a8486e84c86c73ae1a7d68a06d969671@ultra-secure.de> <003501d250af$032dd580$09898080$@ezwind.net> <41E487BC91654544B2B8F31096F2D9D4D1B060A925@ex1> <20161212103148.5prkggi3ix4zoxyv@dhcp-3-221.uk.xensource.com> <41E487BC91654544B2B8F31096F2D9D4D1B060AA3E@ex1> <002101d25484$c0a068c0$41e13a40$@ezwind.net> <20161214140224.rbg5h3v2opa3q3sj@dhcp-3-221.uk.xensource.com>
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> I'm able to see these glitches, as said the VM doesn't really hang, it ju= st > gets > stuck for a long time (and I think that depends on the uptime differences > between the source and destination hosts). In the meantime, could you ple= ase > test if changing the timecounter from XENTIMER to any other (like HPET or > ACPI-fast) solves the issue? >=20 > # sysctl -w kern.timecounter.hardware=3DACPI-fast Hello Roger, I changed the timecounter from XENTIMER to ACPI-fast and then I did about 1= 0 migrations between our 3 hosts. I always started the next migration a few= seconds after the previous migration finished. The VM didn't stuck now and= I didn't see the VGABios screen on the console. Regards, Christian
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