[1.] One line summary of the problem: IP Virtual Server has stopped working with IPv6 virtual services since kernel version 3.6.11.
[2.] Full description of the problem/report: After upgrading a server I use as a load balancer none of my ipv6 services load anymore. I suspected the problem was the upgrade of keepalived from 1.2.2 to 1.2.7 but after compiling 1.2.12 form source it still didn’t work. I then looked at the IP Virtual Server and tried a number of kernels and eventual tracked down where it broke http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6.11-raring/ seems to be where it broke Working: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2.56-precise/ - works http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.3.8-quantal/ - works http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4.85-quantal/ - works http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.32-quantal/ - works http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6-quantal/ - works http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6.3-quantal/ - works http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6.4-raring/ - works http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6.5-raring/ - works http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6.8-raring/ - works http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6.10-raring/ - works Broken: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6.11-raring/ - broken http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13.8-trusty/ - broken http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.14-trusty/ - broken I get the following message when trying to list a virtual service: ipvsadm -L -t [2001:xxxx:xxxx::xxx]:xxx Resource temporarily unavailable I initially though the problem was with keepalived and reported it here: https://bugs.launchpad.net/ubuntu/+source/keepalived/+bug/1300739 [3.] Keywords (i.e., modules, networking, kernel): kernel, ipv6, ipvs [4.] Kernel version (from /proc/version): Linux version 3.6.11-030611-generic (root@gomeisa) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201212171335 SMP Mon Dec 17 18:36:00 UTC 2012 [5.] Output of Oops.. message (if applicable) with symbolic information resolved (see Documentation/oops-tracing.txt) N/A [6.] A small shell script or example program which triggers the problem (if possible) [7.] Environment [7.1.] Software (add the output of the ver_linux script here) Ubuntu server 14.04 [7.2.] Processor information (from /proc/cpuinfo): Virtual (KVM) [7.3.] Module information (from /proc/modules): [7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem) [7.5.] PCI information ('lspci -vvv' as root) [7.6.] SCSI information (from /proc/scsi/scsi) [7.7.] Other information that might be relevant to the problem (please look in /proc and include all information that you think to be relevant): cat /proc/net/ip_vs IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn On kernel versions before 3.6.11 i get the following: IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP [2001:xxx:xxx::xxx]:xxxx lc persistent 1 -> [2001:xxx:xxx::x:xxx]:xxxx Route 1 0 0 [X.] Other notes, patches, fixes, workarounds:
smime.p7s
Description: S/MIME cryptographic signature
