Most recent kernel where this bug did *NOT* occur: 2.6.19.1 Distribution: Debian Testing Hardware Environment: About 100 different x86 boxes Software Environment: no special software involved, just the kernel. No modules are loaded on the affected machines (everything needed is built into the kernel) Problem Description: After booting kernel 2.6.19.2 on our machines they no longer do IPv6 address autoconfiguration, although router advertisments can be seen on that interface: 14:19:14.254410 fe80::212:1eff:fe08:e040 > ip6-allnodes: icmp6: router advertisement(chlim=64, pref=medium, router_ltime=1800, reachable_time=0, retrans_time=0)(src lladdr: 00:12:1e:08:e0:40) [ndp opt] (len 56, hlim 255) ip -6 addr output is: 1: eth0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qlen 1000 inet6 fe80::209:3dff:fe10:ccda/64 scope link valid_lft forever preferred_lft forever 2: eth1: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qlen 1000 inet6 fe80::209:3dff:fe10:ccdb/64 scope link valid_lft forever preferred_lft forever 3: lo: <LOOPBACK,UP,10000> mtu 16436 inet6 ::1/128 scope host valid_lft forever preferred_lft forever (eth0 sees the advertisments) Manually setting the address and default-route works. Reverting commit edfe21a29b1dca9ce5a938317868066d2e21c385 fixes this problem. Steps to reproduce: 1. Upgrade to 2.6.19.2 2. Configure an interface for IPv4 3. The linklocal IPv6 address for the interface appears in ip -6 addr 4. Wait for a router advertisment 5. No Global IPv6 address and no IPv6 default route is set
Created attachment 10066 [details] .config of the used kernel
> On Sat, 13 Jan 2007 05:44:39 -0800 bugme-daemon@bugzilla.kernel.org wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=7817 > > Summary: commit edfe21a29b1dca9ce5a938317868066d2e21c385 breaks > IPv6 address autoconfiguration > Kernel Version: 2.6.19.2 > Status: NEW > Severity: high > Owner: yoshfuji@linux-ipv6.org > Submitter: gernoth@informatik.uni-erlangen.de > > > Most recent kernel where this bug did *NOT* occur: 2.6.19.1 > Distribution: Debian Testing > Hardware Environment: About 100 different x86 boxes > Software Environment: no special software involved, just the kernel. No modules are loaded on the > affected machines (everything needed is built into the kernel) > > Problem Description: > After booting kernel 2.6.19.2 on our machines they no longer do IPv6 address autoconfiguration, > although router advertisments can be seen on that interface: > 14:19:14.254410 fe80::212:1eff:fe08:e040 > ip6-allnodes: icmp6: router advertisement(chlim=64, > pref=medium, router_ltime=1800, reachable_time=0, retrans_time=0)(src lladdr: 00:12:1e:08:e0:40) > [ndp opt] (len 56, hlim 255) > > ip -6 addr output is: > 1: eth0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qlen 1000 > inet6 fe80::209:3dff:fe10:ccda/64 scope link > valid_lft forever preferred_lft forever > 2: eth1: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qlen 1000 > inet6 fe80::209:3dff:fe10:ccdb/64 scope link > valid_lft forever preferred_lft forever > 3: lo: <LOOPBACK,UP,10000> mtu 16436 > inet6 ::1/128 scope host > valid_lft forever preferred_lft forever > (eth0 sees the advertisments) > > Manually setting the address and default-route works. > Reverting commit edfe21a29b1dca9ce5a938317868066d2e21c385 fixes this problem. > > Steps to reproduce: > 1. Upgrade to 2.6.19.2 > 2. Configure an interface for IPv4 > 3. The linklocal IPv6 address for the interface appears in ip -6 addr > 4. Wait for a router advertisment > 5. No Global IPv6 address and no IPv6 default route is set > > ------- You are receiving this mail because: ------- > You are on the CC list for the bug, or are watching someone who is.
Created attachment 10070 [details] Fix joining all-node multicast group. Because we need to have dev->ip6_ptr initialized before we call ipv6_dev_mc_inc(), defer joining all-node multicast group after initialization of dev->ip6_ptr.
This patch fixes the problem for me. Thanks.
Works for me too. Thanks