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[Xen-users] DomU hangs sporadically

from [Jonathan Weismann] [Permanent Link][Original]
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] DomU hangs sporadically
From: "Jonathan Weismann" <jweismann@xxxxxxxxx>
Date: Tue, 20 Jan 2009 16:08:07 -0500
Delivery-date: Tue, 20 Jan 2009 13:09:03 -0800
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All,
          After much combing the web I've come to my wits end regarding this issue.

I have 3 virtual environments all running on separate network cards, bridges, and virtual interfaces.  Sporadically, they will stop responding to external connections and just sit there then pick themselves back up. Users are complaining of speed problems, hangups, and performance problems.

I am using the stock xen kernel, rpms, modules I get from CentOS so this is a 3.03 with backported fixes.

Host system: CentOS 5.2 2.6.18-92.1.22.el5xen #1 SMP Tue Dec 16 13:08:49 EST 2008 i686 i686 i386 GNU/Linux

Network cards:

lspci | grep Ethernet
01:04.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5704 Gigabit Ethernet (rev 02)
01:04.1 Ethernet controller: Broadcom Corporation NetXtreme BCM5704 Gigabit Ethernet (rev 02)
02:02.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5704 Gigabit Ethernet (rev 03)
02:02.1 Ethernet controller: Broadcom Corporation NetXtreme BCM5704 Gigabit Ethernet (rev 03)

xen version: 
rpm -qa | grep -i xen
xen-3.0.3-64.el5_2.9
kmod-gfs-xen-0.1.23-5.el5_2.4
kernel-xen-2.6.18-92.1.22.el5
kmod-gfs-xen-0.1.19-7.el5
xen-libs-3.0.3-64.el5_2.9
kmod-gnbd-xen-0.1.4-12.el5
kernel-xen-2.6.18-92.1.6.el5
kmod-gfs-xen-0.1.23-5.el5
kernel-xen-2.6.18-92.1.13.el5

Interface information:

eth0      Link encap:Ethernet  HWaddr 00:09:6B:E6:5B:06 
          inet addr:xxx.xxx.xxx  Bcast:xxx.xxx.xxx.255  Mask:255.255.255.0
          inet6 addr: fe80::209:6bff:fee6:5b06/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:28364 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6768 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:3434040 (3.2 MiB)  TX bytes:855425 (835.3 KiB)

eth1      Link encap:Ethernet  HWaddr 00:09:6B:16:5B:06 
          inet addr:xxx.xxx.xxx.195  Bcast:xxx.xxx.xxx.255  Mask:255.255.255.0
          inet6 addr: fe80::209:6bff:fe16:5b06/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:21764 errors:0 dropped:0 overruns:0 frame:0
          TX packets:44 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2677909 (2.5 MiB)  TX bytes:12055 (11.7 KiB)

eth2      Link encap:Ethernet  HWaddr 00:10:18:0B:10:75 
          inet addr:xxx.xxx.xxx.196  Bcast:xxx.xxx.xxx.255  Mask:255.255.255.0
          inet6 addr: fe80::210:18ff:fe0b:1075/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:22015 errors:0 dropped:0 overruns:0 frame:0
          TX packets:81 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2875611 (2.7 MiB)  TX bytes:23706 (23.1 KiB)

eth3      Link encap:Ethernet  HWaddr 00:10:18:0B:10:76 
          inet addr:xxx.xxx.xxx.227  Bcast:xxx.xxx.xxx.255  Mask:255.255.255.0
          inet6 addr: fe80::210:18ff:fe0b:1076/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:22389 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1187 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2608708 (2.4 MiB)  TX bytes:186558 (182.1 KiB)

lo        Link encap:Local Loopback 
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:6482 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6482 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:9194576 (8.7 MiB)  TX bytes:9194576 (8.7 MiB)

peth0     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:560490 errors:0 dropped:0 overruns:0 frame:0
          TX packets:285997 errors:12 dropped:0 overruns:0 carrier:0
          collisions:97795 txqueuelen:1000
          RX bytes:674918514 (643.6 MiB)  TX bytes:128105121 (122.1 MiB)
          Interrupt:23

peth1     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:26646 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1749 errors:0 dropped:0 overruns:0 carrier:0
          collisions:167 txqueuelen:1000
          RX bytes:3348509 (3.1 MiB)  TX bytes:171945 (167.9 KiB)
          Interrupt:11

peth2     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:27434 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2870 errors:0 dropped:0 overruns:0 carrier:0
          collisions:390 txqueuelen:1000
          RX bytes:4054463 (3.8 MiB)  TX bytes:280913 (274.3 KiB)
          Interrupt:24

peth3     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:25802 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1187 errors:0 dropped:0 overruns:0 carrier:0
          collisions:1 txqueuelen:1000
          RX bytes:2917674 (2.7 MiB)  TX bytes:193936 (189.3 KiB)
          Interrupt:25

vif0.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:6768 errors:0 dropped:0 overruns:0 frame:0
          TX packets:28654 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:855425 (835.3 KiB)  TX bytes:3461741 (3.3 MiB)

vif0.1    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:44 errors:0 dropped:0 overruns:0 frame:0
          TX packets:21764 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:12055 (11.7 KiB)  TX bytes:2677909 (2.5 MiB)

vif0.2    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:81 errors:0 dropped:0 overruns:0 frame:0
          TX packets:22016 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:23706 (23.1 KiB)  TX bytes:2876137 (2.7 MiB)

vif0.3    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:1187 errors:0 dropped:0 overruns:0 frame:0
          TX packets:22392 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:186558 (182.1 KiB)  TX bytes:2609854 (2.4 MiB)

vif4.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:286714 errors:0 dropped:0 overruns:0 frame:0
          TX packets:544428 errors:0 dropped:10 overruns:0 carrier:0
          collisions:0 txqueuelen:32
          RX bytes:132587246 (126.4 MiB)  TX bytes:670620334 (639.5 MiB)

vif6.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:1489 errors:0 dropped:0 overruns:0 frame:0
          TX packets:18033 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:32
          RX bytes:98329 (96.0 KiB)  TX bytes:2502693 (2.3 MiB)

vif7.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:2422 errors:0 dropped:0 overruns:0 frame:0
          TX packets:18400 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:32
          RX bytes:165924 (162.0 KiB)  TX bytes:2985768 (2.8 MiB)

virbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00 
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:185 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:28260 (27.5 KiB)

xenbr0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:21473 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2142514 (2.0 MiB)  TX bytes:0 (0.0 b)

xenbr1    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:21081 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2102012 (2.0 MiB)  TX bytes:0 (0.0 b)

xenbr2    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:21050 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2094001 (1.9 MiB)  TX bytes:0 (0.0 b)

xenbr3    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF 
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:21004 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2083399 (1.9 MiB)  TX bytes:0 (0.0 b)


brctl show
bridge name    bridge id        STP enabled    interfaces
virbr0        8000.000000000000    yes       
xenbr0        8000.feffffffffff    no        vif4.0
                            peth0
                            vif0.0
xenbr1        8000.feffffffffff    no        vif6.0
                            peth1
                            vif0.1
xenbr2        8000.feffffffffff    no        vif7.0
                            peth2
                            vif0.2
xenbr3        8000.feffffffffff    no        peth3
                            vif0.3
[root@diatpa3 ~]#



Anyone, for the love of all that is holy help me out with some guidance? I'm thinking it's the network driver, but it works like a champ on the host OS.

If I can fix this I'll owe someone a steak dinner. Scout's honor.




--
Jonathan Weismann

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