Hello All,
One of our xen server server stopped responding after few
network tests,can some one please help me verify whether it is related to
ovs.
In stack trace i can see ovs process id.
*ovs-vsctl -V*
ovs-vsctl (Open vSwitch) 1.4.6
Compiled Jun 14 2013 09:23:27
*From log:*
<4>[322699.276939] /local/domain/15/device/vif/0: Connected
<4>[322724.120768] vif15.0: draining TX queue
<0>[333985.181875] NMI: IOCK error (debug interrupt?)
<4>[333985.181881] Modules linked in: tun nfs nfs_acl auth_rpcgss tcp_diag
inet_diag lockd sunrpc openvswitch_mod ipt_REJECT nf_conntrack_ipv4
nf_defrag_ipv4 xt_state nf_conntrack xt_tcpudp iptable_filter ip_tables
x_tables binfmt_misc nls_utf8 isofs dm_mirror video output sbs sbshc fan
battery ac parport_pc lp parport nvram usbhid container evdev thermal sg
button processor thermal_sys hpilo e1000e serio_raw rtc_cmos rtc_core
rtc_lib 8250_pnp 8250 serial_core tpm_tis tpm tpm_bios pcspkr
dm_region_hash dm_log dm_mod ahci libata sd_mod scsi_mod ext3 jbd uhci_hcd
ohci_hcd ehci_hcd usbcore fbcon font tileblit bitblit softcursor [last
unloaded: microcode]
<4>[333985.181917]
<4>[333985.181919] Pid: 5334, comm: ovs-vswitchd Not tainted
(2.6.32.43-0.4.1.xs1.8.0.835.170778xen #1) ProLiant DL120 G7
<4>[333985.181921] EIP: 0061:[<f0a1672e>] EFLAGS: 00010246 CPU: 0
<4>[333985.181926] EIP is at ovs_flow_tbl_lookup+0x5e/0x80 [openvswitch_mod]
<4>[333985.181928] EAX: 00000030 EBX: ec42e834 ECX: 00000012 EDX: 4d8c04a6
<4>[333985.181929] ESI: ec42e85e EDI: eda21cf2 EBP: eda21cc4 ESP: eda21ca8
<4>[333985.181931] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0069
<0>[333985.181932] Process ovs-vswitchd (pid: 5334, ti=eda20000
task=ec782670 task.ti=eda20000)
<0>[333985.181936] Stack:
<4>[333985.181937] ec42e82c 00000030 eda21cd4 4d8c04a6 c100e9a0 edadcac0
edc1c2c0 eda21d5c
<4>[333985.181940] <0> f0a143e2 eda21d4c edca8000 00000000 00000000
00000000 00000001 240a2600
<4>[333985.181943] <0> 846a00b0 5cd61cda 00080000 003f0006 b06a7c73
92687c73 50002d82 00000000
<0>[333985.181947] Call Trace:
<4>[333985.181952] [<f0a143e2>] ? ovs_dp_process_received_packet+0xa2/0xf0
[openvswitch_mod]
<4>[333985.181956] [<c01d6f40>] ? pollwake+0x0/0x70
<4>[333985.181960] [<f0a1b525>] ? ovs_vport_receive+0x75/0x90
[openvswitch_mod]
<4>[333985.181964] [<f0a1d33f>] ? netdev_frame_hook+0x4f/0x90
[openvswitch_mod]
<4>[333985.181968] [<c03527bb>] ? netif_receive_skb+0x1bb/0x6a0
<4>[333985.181971] [<c03530fa>] ? __napi_gro_receive+0xda/0xf0
<4>[333985.181973] [<c0352d68>] ? napi_skb_finish+0x38/0x40
<4>[333985.181975] [<c035318d>] ? napi_gro_receive+0x2d/0x40
<4>[333985.181980] [<f0627df8>] ? e1000_receive_skb+0x68/0xf0 [e1000e]
<4>[333985.181984] [<f062d2aa>] ? e1000_clean_rx_irq+0x21a/0x360 [e1000e]
<4>[333985.181990] [<f062cf7d>] ? e1000e_poll+0x19d/0x2b0 [e1000e]
<4>[333985.181992] [<c0356005>] ? net_rx_action+0x155/0x260
<4>[333985.181996] [<c013a952>] ? __do_softirq+0xc2/0x200
<4>[333985.181998] [<c02dfce5>] ? end_pirq+0x95/0x110
<4>[333985.182001] [<c013ab05>] ? do_softirq+0x75/0x80
<4>[333985.182002] [<c013b1c5>] ? irq_exit+0x35/0x40
<4>[333985.182005] [<c03dc83c>] ? evtchn_do_upcall+0x2fc/0x4a9
<4>[333985.182007] [<c010477f>] ? hypervisor_callback+0x43/0x4b
<0>[333985.182008] Code: 08 eb 37 8b 1b 85 db 74 31 8b 03 0f 18 00 90 8d 43
f8 8b 55 f0 89 45 e4 3b 50 10 75 e6 8b 45 e8 8d 73 0c 8b 7d ec fc 39 c0 89
c1 <f3> a6 75 d4 8b 45 e4 83 c4 10 5b 5e 5f 5d c3 c7 45 e4 00 00 00
Regards,
kevin
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