Date: Tue, 11 Feb 2014 16:33:22 +0000 From: Karl Pielorz <kpielorz_lst@tdx.co.uk> To: =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= <roger.pau@citrix.com>, freebsd-xen@freebsd.org Subject: Re: Xen PV Networking issue - disable PV NIC in XENHVM FreeBSD? Message-ID: <72C34BC121BD5A0FBDAEFA37@Mail-PC.tdx.co.uk> In-Reply-To: <52F8FE87.1010705@citrix.com> References: <D280F84BE886E8D6110B93D0@study64.tdx.co.uk> <52F8FE87.1010705@citrix.com>
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--On 10 February 2014 17:29 +0100 Roger Pau Monn=C3=A9 = <roger.pau@citrix.com>=20 wrote: > That's quite weird... Do you see any messages in the Xen console (xl > dmesg)? Can you boot with a hypervisor compiled with debug=3Dy and see if > there are any strange messages on the Xen console? Ok, no messages logged anywhere when this goes on - I'm running XenServer=20 6.2 installed from the distribution ISO (w/SP1 applied) - I don't=20 know/think that's compiled with 'debug=3Dy'? dmesg output for XenServer=20 coming up is 'unremarkable' as far as I can see, and nothing is logged with = 'xl dmesg' > Also, does replacing the FreeBSD gateway VM with a Linux PV VM solve the > issue? (ie. just to check if Linux also shows this behaviour) Ok, that I could do - and just did. I used CentOS 6 - which booted in 'Xen' = aware mode (with Xen Virtual ethernet driver) - annoyingly that works=20 *fine* (i.e. no issues). So, Windows 7 PV <-> FreeBSD 9.x / 10.x PV =3D Fail (if on same XenServer = host) Windows 7 HVM <-> FreeBSD PV =3D Works Windows 7 PV <-> Linux (CentOS 6) PV =3D Works So it looks like it might actually be a FreeBSD/Xen issue? I just tried booting FreeBSD 10 without the Xen options in the kernel, and=20 it won't boot (it panics). Is there any way of booting 10.x in HVM mode (i.e. with no Xen PV support)=20 - or at least switching 'xn' for 're' as far as nic's go? Are there any 'offload' type features that can be disabled for 'xn' nics in = FreeBSD? -Karl
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