On Wed, Apr 13, 2011 at 02:19:27PM +0200, Marcus Mülbüsch wrote: > Hello all, > "suddenly" all my vserver guests lost its IPs and were no > longer able to connect or to be connected. When restarting > a vserver it went down with the error message: "RTNETLINK > answers: Cannot assign requested address"; when they came up > again all was well. > An "ip address" within the host showed that the vservers > that were restartet had an ip-address; those who weren't had > not. > I rebooted the server and all is fine now. However, the log > showed: > " > Apr 13 12:52:53 dl360_1 kernel: tg3 0000:01:02.0: PME# enabled > Apr 13 12:52:54 dl360_1 kernel: tg3 0000:01:02.0: PME# disabled > Apr 13 12:52:54 dl360_1 kernel: tg3 0000:01:02.0: BAR 0: set to [mem > 0xf7ef0000-0xf7efffff 64bit] (PCI address [0xf7ef0000-0xf7efffff] > Apr 13 12:52:57 dl360_1 kernel: tg3 0000:01:02.0: eth0: Link is up at > 1000 Mbps, full duplex > Apr 13 12:52:57 dl360_1 kernel: tg3 0000:01:02.0: eth0: Flow control is > off for TX and off for RX > " > After the reboot there is no new "PME# disabled" entry, so I > suspect there is something wrong here? > Using "util-vserver-0.30.216_pre2935" on > "vserver-sources-2.3.0.36.32" on a gentoo system. > What can I do to provide better info next time that happens? check with 'ip a l' on the host, most likely you'll see primary addresses (those without any special addon) and so called secondaries (they are specifically marked as such) within a given network, there can only be a single primary IP, all other IPs will become secondaries, and that is where this problem usually arises from, because without the promote_secondaries set, the nework stack will simply remove all secondaries when the primary is removed > What can I do to monitor such an event? well, you can trigger it at any time by removing the primary IP of such a setup ... > Any more pointers? we have a FAQ section devoted to this :) possible solutions besides the simple promote_secondaries is to keep the primary around forever and of course, to recreate all the secondaries once the primary is gone (probably not so simple :) > And what is the meaning of life anyway? http://www.sembeo.com/wp-content/uploads/2009/02/29_the_meaning_of_life_big.jpg best, Herbert > Marcus > --- > Results if "ip address" (before restarting the host, but after > restarting the guests 122 and 124) > -- > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN > link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 > inet 127.0.0.1/8 brd 127.255.255.255 scope host lo > 2: eth0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc mq > state UP qlen 1000 > link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff > inet 192.168.1.120/24 brd 192.168.1.255 scope global eth0 > inet 192.168.1.122/24 brd 192.168.1.255 scope global secondary eth0 > inet 192.168.1.124/24 brd 192.168.1.255 scope global secondary eth0 > -- > results of uptime before restart: > -- > 13:58:42 up 23 days, 1:25, 3 users, load average: 0.13, 0.07, 0.05 > -- > results of vserver-info > -- > Versions: > Kernel: 2.6.35-vs2.3.0.36.32-gentoo > VS-API: 0x00020306 > VCI: 0x0000000013001ff1 > util-vserver: 0.30.216-pre2935; Mar 8 2011, 12:47:37 > Features: > CC: i686-pc-linux-gnu-gcc, i686-pc-linux-gnu-gcc > (Gentoo 4.3.4 p1.1, pie-10.1.5) 4.3.4 > CXX: i686-pc-linux-gnu-g++, i686-pc-linux-gnu-g++ > (Gentoo 4.3.4 p1.1, pie-10.1.5) 4.3.4 > CPPFLAGS: '' > CFLAGS: '-march=i686 -O2 -pipe -fomit-frame-pointer > -std=c99 -Wall -pedantic -W -funit-at-a-time' > CXXFLAGS: '-march=i686 -O2 -pipe -fomit-frame-pointer > -ansi -Wall -pedantic -W -fmessage-length=0 -funi > t-at-a-time' > build/host: i686-pc-linux-gnu/i686-pc-linux-gnu > Use dietlibc: yes > Build C++ programs: yes > Build C99 programs: yes > Available APIs: v13,net,v21,v22,v23,netv2 > ext2fs Source: e2fsprogs > syscall(2) invocation: alternative > vserver(2) syscall#: 273/glibc > crypto api: beecrypt > python bindings: yes > use library versioning: yes > Paths: > prefix: /usr > sysconf-Directory: /etc > cfg-Directory: /etc/vservers > initrd-Directory: $(sysconfdir)/init.d > pkgstate-Directory: /var/run/vservers > vserver-Rootdir: /vservers