On Tue, 23 Mar 2010 15:34:59 PDT, akpm@linux-foundation.org said: > The mm-of-the-moment snapshot 2010-03-23-15-34 has been uploaded to > > http://userweb.kernel.org/~akpm/mmotm/ Seen in my dmesg. It may be relevant that I'm at home, and my IPv6 prefix arrives via a PPP VPN connection. This happened about 20-25 seconds after I launched pppd. [ 175.269411] ------------[ cut here ]------------ [ 175.269433] WARNING: at net/ipv6/addrconf.c:544 inet6_ifa_finish_destroy+0x40/0xbb() [ 175.269441] Hardware name: Latitude E6500 [ 175.269447] Modules linked in: ppp_async sunrpc usb_storage [last unloaded: scsi_wait_scan] [ 175.269473] Pid: 7, comm: ksoftirqd/1 Tainted: G W 2.6.34-rc2-mmotm0323 #1 [ 175.269480] Call Trace: [ 175.269488] [] warn_slowpath_common+0x80/0x98 [ 175.269517] [] warn_slowpath_null+0x15/0x17 [ 175.269530] [] inet6_ifa_finish_destroy+0x40/0xbb [ 175.269542] [] in6_ifa_put+0x14/0x16 [ 175.269555] [] addrconf_prefix_rcv+0x583/0x786 [ 175.269568] [] ? rt6_get_dflt_router+0xab/0xbb [ 175.269581] [] ndisc_rcv+0x90f/0xdb4 [ 175.269595] [] ? __rcu_read_unlock+0x30c/0x341 [ 175.269609] [] ? debug_lockdep_rcu_enabled+0x33/0x39 [ 175.269622] [] icmpv6_rcv+0x59b/0x659 [ 175.269634] [] ? ipv6_chk_mcast_addr+0xaf/0x13d [ 175.269648] [] ? trace_hardirqs_on_caller+0x16/0x13c [ 175.269661] [] ? _local_bh_enable_ip+0x15c/0x16e [ 175.269674] [] ? local_bh_enable_ip+0x9/0xb [ 175.269689] [] ? _raw_read_unlock_bh+0x39/0x3e [ 175.269702] [] ? ipv6_chk_mcast_addr+0x124/0x13d [ 175.269714] [] ? ip6_input_finish+0x0/0x343 [ 175.269726] [] ip6_input_finish+0x1e9/0x343 [ 175.269737] [] ? ip6_input_finish+0x0/0x343 [ 175.269748] [] NF_HOOK.clone.1+0x4c/0x53 [ 175.269759] [] ip6_input+0x1c/0x1e [ 175.269769] [] ip6_mc_input+0x107/0x11c [ 175.269780] [] ? ip6_rcv_finish+0x0/0x26 [ 175.269791] [] ip6_rcv_finish+0x22/0x26 [ 175.269802] [] NF_HOOK.clone.1+0x4c/0x53 [ 175.269812] [] ipv6_rcv+0x453/0x4a7 [ 175.269827] [] __netif_receive_skb+0x2da/0x307 [ 175.269839] [] process_backlog+0x9d/0xd6 [ 175.269851] [] net_rx_action+0xf2/0x356 [ 175.269863] [] __do_softirq+0x14a/0x282 [ 175.269876] [] call_softirq+0x1c/0x34 [ 175.269882] [] ? do_softirq+0x44/0xf0 [ 175.269901] [] run_ksoftirqd+0xbc/0x1fb [ 175.269912] [] ? run_ksoftirqd+0x0/0x1fb [ 175.269925] [] kthread+0x7a/0x82 [ 175.269937] [] kernel_thread_helper+0x4/0x10 [ 175.269949] [] ? restore_args+0x0/0x30 [ 175.269961] [] ? kthread+0x0/0x82 [ 175.269971] [] ? kernel_thread_helper+0x0/0x10 [ 175.269979] ---[ end trace a7919e7f17c0a727 ]--- [ 175.269986] Freeing alive inet6 address ffff880107e1a400 [ 176.472172] ------------[ cut here ]------------ [ 176.472192] WARNING: at net/ipv6/addrconf.c:544 inet6_ifa_finish_destroy+0x40/0xbb() [ 176.472200] Hardware name: Latitude E6500 [ 176.472206] Modules linked in: ppp_async sunrpc usb_storage [last unloaded: scsi_wait_scan] [ 176.472232] Pid: 4008, comm: fetchmail Tainted: G W 2.6.34-rc2-mmotm0323 #1 [ 176.472239] Call Trace: [ 176.472256] [] warn_slowpath_common+0x80/0x98 [ 176.472269] [] warn_slowpath_null+0x15/0x17 [ 176.472280] [] inet6_ifa_finish_destroy+0x40/0xbb [ 176.472291] [] in6_ifa_put+0x14/0x16 [ 176.472303] [] ipv6_dev_get_saddr+0x2b3/0x2c7 [ 176.472316] [] ? fib6_rule_lookup+0x18/0x1a [ 176.472328] [] ip6_dst_lookup_tail+0x90/0xc5 [ 176.472339] [] ip6_dst_lookup+0x10/0x12 [ 176.472352] [] ip6_datagram_connect+0x334/0x4f6 [ 176.472365] [] ? _local_bh_enable_ip+0x15c/0x16e [ 176.472378] [] ? release_sock+0xff/0x108 [ 176.472390] [] inet_dgram_connect+0x56/0x5d [ 176.472402] [] sys_connect+0x75/0x98 [ 176.472415] [] ? path_put+0x1d/0x22 [ 176.472429] [] ? trace_hardirqs_on_caller+0x16/0x13c [ 176.472442] [] ? audit_syscall_entry+0xcb/0x19c [ 176.472455] [] system_call_fastpath+0x16/0x1b [ 176.472464] ---[ end trace a7919e7f17c0a728 ]--- [ 176.472472] Freeing alive inet6 address ffff880107e1a400