Date: Mon, 25 Jul 2016 14:59:02 +0100 From: Karl Pielorz <kpielorz_lst@tdx.co.uk> To: =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= <roger.pau@citrix.com>, "Hoyer-Reuther, Christian" <Christian.Hoyer-Reuther@cac-chem.de> Cc: freebsd-xen@freebsd.org Subject: Re: 'Live' Migrate messes up NTP on FreeBSD domU - any suggestions? Message-ID: <FA258C50EA60D4DE44D9289C@[10.12.30.106]> In-Reply-To: <20160722115542.dopzb63dgkilqall@mac> References: <41E487BC91654544B2B8F31096F2D9D4D1514D1D8E@ex1> <20160714103016.4hgfzsjgkkgtkkgg@mac> <41E487BC91654544B2B8F31096F2D9D4D1514D1E88@ex1> <20160720093111.mpmp27wol7j3ge3d@mac> <41E487BC91654544B2B8F31096F2D9D4D1516490E9@ex1> <20160722115542.dopzb63dgkilqall@mac>
next in thread | previous in thread | raw e-mail | index | archive | help
--On 22 July 2016 13:55 +0200 Roger Pau Monn=C3=A9 <roger.pau@citrix.com> =
wrote:
> In my environment I've migrated a FreeBSD VM with 2 cpus for > 100
> consecutive times without seeing any issues (or freezes), although this
> was with OSS Xen and without xe-guest-utilities. Karl, have you tested
> HEAD recently?
Ok, I have tested this with r303286 - it seems to work OK. The hosts gain=20
no time that I can see while migrating, and NTP stays happy.
I did get a panic after about 40 migrations - but that seems to be some=20
network issue or something...
('panic called with 0 available queues / dbt_trace_self_wrapper / vpanic =
/ kassert_panic / xn_txq_mq_start / ether_output / udp_send / sosend_dgram=20
/ kern_sendit / sendit / sys_sendto / amd64_syscall / Xfast_syscall)
I don't have a crashdump (failed). I did get a backtrace, for what it's=20
worth.
I'm running the test again now (in case it panics again - I'll try harder=20
to get a dump just in case).
-Karl
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?FA258C50EA60D4DE44D9289C>