Date: Wed, 3 Aug 2016 11:24:24 +0200 From: Roger Pau =?iso-8859-1?Q?Monn=E9?= <roger.pau@citrix.com> To: Julian Elischer <julian@freebsd.org>, freebsd-current <freebsd-current@freebsd.org>, <freebsd-xen@freebsd.org> Subject: Re: Xen networking problems in -current with xn driver? Message-ID: <20160803092424.6crhc3arij7txpzq@mac> In-Reply-To: <20160803082018.jrqienhyewjjjmmb@mac> References: <0b90d4f0-fc02-7a07-6ce1-135a61cbc352@freebsd.org> <20160803082018.jrqienhyewjjjmmb@mac>
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On Wed, Aug 03, 2016 at 10:20:19AM +0200, Roger Pau Monné wrote: > On Wed, Aug 03, 2016 at 02:12:33AM +0800, Julian Elischer wrote: > > I upgraded my VPS machine to today's current, and on reboot I couldn't get > > into it by network. > > > > A quick switch to the VNC console showed that it was up but that it couldn't > > get out. > > > > > > The xn interfaces said they were UP but attempts to get out were met with > > "network is down". > > > > if I did 'tcpdump -n -i xn0' (and xn1) hten all was fine again. > > > > tcpdump saw packets, and in fact ipfw saw some packets coming in even before > > that but it was not possible to send. > > > > > > Has anyone seen similar? > > Hello, > > I've tested current less than one week ago and didn't find any issues, I'm > currently updating to see if it's something that has been introduced in the > last few days. There have also been reports of it working fine on the > freebsd-xen mailing list, but I guess there's something different with your > setup: > > https://lists.freebsd.org/pipermail/freebsd-xen/2016-July/002779.html > > > some relevant parts of the dmesg output.: > > > > > > T(vga): text 80x25 > > XEN: Hypervisor version 3.4 detected. > > CPU: Intel(R) Xeon(R) CPU E5620 @ 2.40GHz (2400.05-MHz 686-class > > CPU) > > Origin="GenuineIntel" Id=0x206c2 Family=0x6 Model=0x2c Stepping=2 > > Features=0x1781fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,MMX,FXSR,SSE,SSE2,HTT> > > Features2=0x80982201<SSE3,SSSE3,CX16,SSE4.1,SSE4.2,POPCNT,HV> > > AMD Features=0x20100000<NX,LM> > > AMD Features2=0x1<LAHF> > > Hypervisor: Origin = "XenVMMXenVMM" > > real memory = 536870912 (512 MB) > > avail memory = 503783424 (480 MB) > > Event timer "LAPIC" quality 400 > > ACPI APIC Table: <Xen HVM> > > WARNING: L1 data cache covers less APIC IDs than a core > > 0 < 1 > > WARNING: L2 data cache covers less APIC IDs than a core > > 0 < 1 > > WARNING: L3 data cache covers less APIC IDs than a core > > 0 < 1 > > > > ipfw2 (+ipv6) initialized, divert loadable, nat enabled, default to deny, > > You seem to be using ipfw, I guess you have firewall_enable="YES" on you > rc.conf, are you also using IPv6? Anything else net related on your rc.conf? FWIW, I've added: firewall_enable="YES" firewall_type="open" To my rc.conf and I'm still not able to reproduce, this is all with IPv4. Roger.
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