Date: Wed, 18 Jun 2014 14:11:38 +0100 From: Karl Pielorz <kpielorz_lst@tdx.co.uk> To: freebsd-xen@freebsd.org Subject: re. pr188261 - any way I can investigate further? Message-ID: <7B689F2C8C07F01AD552CA61@Mail-PC.tdx.co.uk>
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Hi, I submitted a PR a while ago (pr188261) - or now, Bugzilla <https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=188261>; I've updated this recently - as I found doing 'ifconfig xn0 -txcsum' on a "client" will fix the issue, for just that client - but I'm still unable to fix the 'router' VM in such a way as all clients don't need a fix. I have a test system setup with all this now (and all of 9.2-S, 10-S, and 11-Current have the issue) - is anyone able to point me in the right direction of what I can do to investigate this further? (i.e. debug things, packet captures, etc. etc.) We could really do with getting this fixed - we use FreeBSD as routers on a few systems - as as they move to Xen we end up having to either setup 2 pools (and be very, very careful about what machines we put on each) in order to avoid this - or face running them in HVM mode for which the performance is very, very poor. -Karl
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