[Lxc-users] uptodate Ubuntu Lucid guests
Daniel Lezcano
daniel.lezcano at free.fr
Fri Sep 10 11:03:42 UTC 2010
On 09/10/2010 11:59 AM, Ferenc Holzhauser wrote:
> On 10 September 2010 09:48, Daniel Lezcano<daniel.lezcano at free.fr> wrote:
>
>> On 09/09/2010 11:22 PM, Papp Tamás wrote:
>>
>>> Daniel Lezcano wrote, On 2010. 09. 05. 22:30:
>>>
>>>>>>
>>>>> Well, I can. Now again, right after I start a container I get the
>>>>> kernel
>>>>> panic. I see the console through a KVM, this is a screenshot:
>>>>>
>>>> Papp, I suppose you attached an image but I don't see it. It is
>>>> possible to resend.
>>>> I increased the message body size limit to 128KB to the mailing setting.
>>>>
>>> hi Daniel,
>>>
>>> Have you checked the screenshots?
>>>
>> Yes, thanks for sending the screenshots.
>> This is a critical bug :s
>>
>> It seems you didn't face this problem before, right ? Did you change
>> something in your configuration ?
>> Do you have the same problem with a 2.6.32-23-server kernel ? Are you
>> able to reproduce this bug with qemu ?
>>
>> Thanks
>> -- Daniel
>>
>>
>>
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>>
> Hi,
>
> I might be able to answer that question:
> > From the screenshots this appears to be the same issue what I (and at
> least another user) have experienced and reported earlier on the list.
> I've created a qemu-kvm VM on the server where I had this issue. I can
> not reproduce the problem anymore either in this qemu VM or an LXC
> container INSIDE that VM.
>
Yep, sounds the same problem. Let's look at this closely ...
1) Papp is using a 2.6.32-24-server kernel => kernel crash
Physical interfaces:
===================
??
Interfaces configuration:
========================
??
Ifconfig:
========
??
bridge info:
===========
??
Lxc configuration:
=================
lxc.utsname = test
lxc.tty = 4
lxc.network.type = veth
lxc.network.flags = up
lxc.network.link = br1
lxc.network.name = eth1
lxc.network.mtu = 1500
lxc.network.ipv4 = 10.1.1.219/16
lxc.network.hwaddr = AC:DD:22:63:22:22
lxc.network.veth.pair = veth118
lxc.rootfs = /data/lxc/test/rootfs
lxc.cgroup.devices.deny = a
lxc.cgroup.devices.allow = c 1:3 rwm
lxc.cgroup.devices.allow = c 1:5 rwm
lxc.cgroup.devices.allow = c 5:1 rwm
lxc.cgroup.devices.allow = c 5:0 rwm
lxc.cgroup.devices.allow = c 4:0 rwm
lxc.cgroup.devices.allow = c 4:1 rwm
lxc.cgroup.devices.allow = c 1:9 rwm
lxc.cgroup.devices.allow = c 1:8 rwm
lxc.cgroup.devices.allow = c 136:* rwm
lxc.cgroup.devices.allow = c 5:2 rwm
lxc.cgroup.devices.allow = c 254:0 rm
2) Daniel tried on a 2.6.32-23-server kernel => no problem
Physical interfaces:
===================
05:00.0 Ethernet controller: Intel Corporation 80003ES2LAN Gigabit Ethernet Controller (Copper) (rev 01)
05:00.1 Ethernet controller: Intel Corporation 80003ES2LAN Gigabit Ethernet Controller (Copper) (rev 01)
Interfaces configuration:
========================
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
auto br0
iface br0 inet static
address 172.20.0.1
netmask 255.255.0.0
bridge_stp off
bridge_maxwait 5
pre-up /usr/sbin/brctl addbr br0
post-up /usr/sbin/brctl setfd br0 0
post-up /sbin/iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
post-up echo 1> /proc/sys/net/ipv4/ip_forward
Ifconfig:
========
br0 Link encap:Ethernet HWaddr 56:1e:16:49:91:8a
inet addr:172.20.0.1 Bcast:172.20.255.255 Mask:255.255.0.0
inet6 addr: fe80::541e:16ff:fe49:918a/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:59748 errors:0 dropped:0 overruns:0 frame:0
TX packets:117950 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3722380 (3.7 MB) TX bytes:170211775 (170.2 MB)
eth0 Link encap:Ethernet HWaddr 00:e0:81:74:bc:fa
inet addr:192.168.254.103 Bcast:192.168.254.255 Mask:255.255.255.0
inet6 addr: fe80::2e0:81ff:fe74:bcfa/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2700923 errors:0 dropped:0 overruns:0 frame:0
TX packets:1786015 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:3651075205 (3.6 GB) TX bytes:147340322 (147.3 MB)
Memory:d3000000-d3020000
eth1 Link encap:Ethernet HWaddr 00:e0:81:74:bc:fb
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Memory:d3020000-d3040000
vethiCcp1W Link encap:Ethernet HWaddr 56:1e:16:49:91:8a
inet6 addr: fe80::541e:16ff:fe49:918a/64 Scope:Link
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:9744 errors:0 dropped:0 overruns:0 frame:0
TX packets:19033 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:525357 (525.3 KB) TX bytes:28466570 (28.4 MB)
bridge info:
===========
bridge name bridge id STP enabled interfaces
br0 8000.561e1649918a no vethiCcp1W
Lxc configuration:
=================
lxc.network.type=veth
lxc.network.link=br0
lxc.network.flags=up
lxc.utsname = ubuntu
lxc.tty = 4
lxc.pts = 1024
lxc.rootfs = /var/lib/lxc/ubuntu/rootfs
lxc.mount = /var/lib/lxc/ubuntu/fstab
lxc.cgroup.devices.deny = a
# /dev/null and zero
lxc.cgroup.devices.allow = c 1:3 rwm
lxc.cgroup.devices.allow = c 1:5 rwm
# consoles
lxc.cgroup.devices.allow = c 5:1 rwm
lxc.cgroup.devices.allow = c 5:0 rwm
lxc.cgroup.devices.allow = c 4:0 rwm
lxc.cgroup.devices.allow = c 4:1 rwm
# /dev/{,u}random
lxc.cgroup.devices.allow = c 1:9 rwm
lxc.cgroup.devices.allow = c 1:8 rwm
lxc.cgroup.devices.allow = c 136:* rwm
lxc.cgroup.devices.allow = c 5:2 rwm
# rtc
lxc.cgroup.devices.allow = c 254:0 rwm
3) Ferenc used a 2.6.32-22 server kernel => kernel crash
Physical interfaces:
===================
01:00.0 Ethernet controller: Intel Corporation 82575EB Gigabit Network Connection (rev 02)
01:00.1 Ethernet controller: Intel Corporation 82575EB Gigabit Network Connection (rev 02)
07:00.0 Ethernet controller: Intel Corporation 82575EB Gigabit Network Connection (rev 02)
07:00.1 Ethernet controller: Intel Corporation 82575EB Gigabit Network Connection (rev 02)
bridge info:
===========
??
Ifconfig:
========
??
Interfaces configuration:
========================
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto br0
iface br0 inet static
address 10.0.0.30
network 10.0.0.0
netmask 255.255.255.0
broadcast 10.0.0.255
gateway 10.0.0.1
bridge_ports eth0
bridge_fd 9
bridge_hello 2
bridge_maxage 12
bridge_stp off
dns-nameservers 10.0.0.2
dns-search asd.internal_net.com
auto br1
iface br1 inet static
address 192.168.1.30
network 192.168.1.0
netmask 255.255.255.0
broadcast 192.168.1.255
bridge_ports eth1
bridge_fd 9
bridge_hello 2
bridge_maxage 12
bridge_stp off
Lxc configuration:
=================
lxc.utsname = backend1
lxc.tty = 4
lxc.network.type = veth
lxc.network.flags = up
lxc.network.link = br0
lxc.network.name = eth0
lxc.network.mtu = 1500
lxc.network.ipv4 = 10.0.0.45/24
lxc.network.type = veth
lxc.network.flags = up
lxc.network.link = br1
lxc.network.name = eth1
lxc.network.mtu = 1500
lxc.network.ipv4 = 192.168.1.45/24
lxc.rootfs = /lxc/backend1/root
lxc.mount = /lxc/backend1/fstab
lxc.cgroup.devices.deny = a
# /dev/null and zero
lxc.cgroup.devices.allow = c 1:3 rwm
lxc.cgroup.devices.allow = c 1:5 rwm
# consoles
lxc.cgroup.devices.allow = c 5:1 rwm
lxc.cgroup.devices.allow = c 5:0 rwm
lxc.cgroup.devices.allow = c 4:0 rwm
lxc.cgroup.devices.allow = c 4:1 rwm
# /dev/{,u}random
lxc.cgroup.devices.allow = c 1:9 rwm
lxc.cgroup.devices.allow = c 1:8 rwm
# /dev/pts/* - pts namespaces are "coming soon"
lxc.cgroup.devices.allow = c 136:* rwm
lxc.cgroup.devices.allow = c 5:2 rwm
# rtc
lxc.cgroup.devices.allow = c 254:0 rwm
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