Date: Sun, 04 Nov 2012 01:58:57 +0100 From: Bane Ivosev <bane.ivosev@pmf.uns.ac.rs> To: Bryan Venteicher <bryanv@daemoninthecloset.org>, "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org> Subject: Re: kvm vlan virtio problem Message-ID: <5095BDD1.40504@pmf.uns.ac.rs> In-Reply-To: <1542441515.1609.1351975216870.JavaMail.root@daemoninthecloset.org> References: <1542441515.1609.1351975216870.JavaMail.root@daemoninthecloset.org>
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thanks bryan, i don't have vlans inside guest. as you suggested i disabled nic tso ifconfig vtnet0 -tso and sysctl net.inet.tcp.tso=0 and so far, so good! everything is ok now. once again, thanks a lot. On 11/03/2012 09:40 PM, Bryan Venteicher wrote: > Hi, > > ----- Original Message ----- >> From: "Bane Ivosev"<bane.ivosev@pmf.uns.ac.rs> >> To: freebsd-stable@freebsd.org >> Sent: Saturday, November 3, 2012 2:12:25 PM >> Subject: kvm vlan virtio problem >> >> hi, i have several kvm ubuntu 12.04 and centos 6 hosts with standard >> bridged network setup. same problem on each server with freebsd 9 >> amd64 >> guest and virtio nic: soon after guest start host syslog is filling >> with >> this message at very high rate. guest is working without any problem. >> with e1000 guest driver eveything is ok. >> >> does enyone have/had same problem? >> >> thanks. >> > > I have a vague recollection of looking at something similar last year... > > Do you have VLAN configured in the guest as well? What is the ifconfig > output? Does disabling TSO on the vtnetX device make these messages go > away? > > Bryan > >> >> kernel: [2337728.094141] ------------[ cut here ]------------ >> kernel: [2337728.094144] WARNING: at >> /build/buildd/linux-3.2.0/net/core/dev.c:1955 >> skb_gso_segment+0x341/0x3b0() >> kernel: [2337728.094146] Hardware name: System x3550 M3 -[7944K3G]- >> kernel: [2337728.094148] 802.1Q VLAN Support: caps=(0x30195833, >> 0x0) >> len=3196 data_len=0 ip_summed=0 >> kernel: [2337728.094149] Modules linked in: dm_snapshot >> ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE >> iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state >> nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp >> iptable_filter ip_tables x_tables kvm_intel kvm dm_crypt nfsd nfs >> lockd >> fscache auth_rpcgss nfs_acl sunrpc nls_iso8859_1 nls_cp437 vfat fat >> 8021q garp bridge stp serio_raw cdc_ether usbnet vhost_net macvtap >> i7core_edac macvlan shpchp ioatdma edac_core dca tpm_tis lp parport >> mac_hid btrfs zlib_deflate libcrc32c usbhid hid megaraid_sas bnx2 >> kernel: [2337728.094177] Pid: 8685, comm: vhost-8683 Tainted: G >> W 3.2.0-31-generic #50-Ubuntu >> kernel: [2337728.094179] Call Trace: >> kernel: [2337728.094180]<IRQ> [<ffffffff81066d7f>] >> warn_slowpath_common+0x7f/0xc0 >> kernel: [2337728.094185] [<ffffffff81066e76>] >> warn_slowpath_fmt+0x46/0x50 >> kernel: [2337728.094188] [<ffffffff8153f581>] >> skb_gso_segment+0x341/0x3b0 >> kernel: [2337728.094191] [<ffffffff81542ee1>] >> dev_hard_start_xmit+0xc1/0x540 >> kernel: [2337728.094196] [<ffffffffa01c0150>] ? br_flood+0xc0/0xc0 >> [bridge] >> kernel: [2337728.094199] [<ffffffff8154360a>] >> dev_queue_xmit+0x2aa/0x420 >> kernel: [2337728.094203] [<ffffffffa01c01e2>] >> br_dev_queue_push_xmit+0x92/0xd0 [bridge] >> kernel: [2337728.094208] [<ffffffffa01c0278>] >> br_forward_finish+0x58/0x60 [bridge] >> kernel: [2337728.094212] [<ffffffffa01c042b>] >> __br_forward+0xab/0xd0 >> [bridge] >> kernel: [2337728.094217] [<ffffffffa01c04ed>] br_forward+0x5d/0x70 >> [bridge] >> kernel: [2337728.094221] [<ffffffffa01c11c2>] >> br_handle_frame_finish+0x182/0x2a0 [bridge] >> kernel: [2337728.094226] [<ffffffffa01c14a8>] >> br_handle_frame+0x1c8/0x270 [bridge] >> kernel: [2337728.094231] [<ffffffffa01c12e0>] ? >> br_handle_frame_finish+0x2a0/0x2a0 [bridge] >> kernel: [2337728.094234] [<ffffffff81540892>] >> __netif_receive_skb+0x1e2/0x520 >> kernel: [2337728.094237] [<ffffffff81540ff1>] >> process_backlog+0xb1/0x190 >> kernel: [2337728.094240] [<ffffffff815422e4>] >> net_rx_action+0x134/0x290 >> kernel: [2337728.094242] [<ffffffff8165a4fe>] ? >> _raw_spin_lock+0xe/0x20 >> kernel: [2337728.094245] [<ffffffff8106e528>] >> __do_softirq+0xa8/0x210 >> kernel: [2337728.094248] [<ffffffff81664d6c>] >> call_softirq+0x1c/0x30 >> kernel: [2337728.094249]<EOI> [<ffffffff81015305>] >> do_softirq+0x65/0xa0 >> kernel: [2337728.094254] [<ffffffff815427c8>] >> netif_rx_ni+0x28/0x30 >> kernel: [2337728.094258] [<ffffffff81478ec6>] >> tun_get_user+0x306/0x4a0 >> kernel: [2337728.094261] [<ffffffff81479085>] >> tun_sendmsg+0x25/0x30 >> kernel: [2337728.094265] [<ffffffffa01b09b6>] >> handle_tx+0x296/0x530 >> [vhost_net] >> kernel: [2337728.094269] [<ffffffffa01b0c85>] >> handle_tx_kick+0x15/0x20 [vhost_net] >> kernel: [2337728.094273] [<ffffffffa01ade3d>] >> vhost_worker+0xdd/0x170 >> [vhost_net] >> kernel: [2337728.094276] [<ffffffffa01add60>] ? >> vhost_set_memory+0x130/0x130 [vhost_net] >> kernel: [2337728.094279] [<ffffffff8108a03c>] kthread+0x8c/0xa0 >> kernel: [2337728.094282] [<ffffffff81664c74>] >> kernel_thread_helper+0x4/0x10 >> kernel: [2337728.094285] [<ffffffff81089fb0>] ? >> flush_kthread_worker+0xa0/0xa0 >> kernel: [2337728.094287] [<ffffffff81664c70>] ? >> gs_change+0x13/0x13 >> kernel: [2337728.094289] ---[ end trace a38cf088269411b3 ]--- >> kernel: [2337728.094731] ------------[ cut here ]------------ >> _______________________________________________ >> freebsd-stable@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-stable >> To unsubscribe, send any mail to >> "freebsd-stable-unsubscribe@freebsd.org" >> > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
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