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SubjectPROBLEM: 2.4.4, 2.4.4-ac1, 2.4.4-ac2, neighbour discovery bug (ipv6)

When i traceroute6 my 2.4.4 box on my local lan, the 2.4.4 box panic's after about 10 seconds. The traceroute6 completes on the other box.

2.4.3-ac14 doesn't experience these problems. Only 2.4.4 (with or without ac{1,2}) panics

---- traceroute6 output ----
traceroute to neve.oisec.net (3ffe:8114:2000:0:250:bfff:fe21:629a) from 3ffe:8114:2000:0:210:4bff:feb3:1fb4, 30 hops max, 16 byte packets
1 neve.oisec.net (3ffe:8114:2000:0:250:bfff:fe21:629a) 0.583 ms 0.278 ms 0.233 ms


wait 10 seconds and the following appears (unfortunately no stack dumps :()

---- panic info 2.4.4-ac2 ----
CPU 0
EIP 0010:[<c0217314>]
EFLAGS 00010206
eax: c13c2060
ebx: fffffffd
ecx: 00000000
edx: ca65b1dc
esi: 00000000
edi: 00000018
ebp: cbf72000
esp: c029feb0
ds: 0018
es: 0018
ss: 0018
Process swapper (pid: 0, stackpage=c029f000)

Call Trace:

c021e828 [ndisc_send_ns]
c01e912c [deliver_to_old_ones]
c021ecfd [ndisc_error_report]
c01efd2b [ip_route_input_slow]
c01eb7ab [neigh_timer_handler]
c01eb664 [neigh_timer_handler]
c0119f12 [timer_bh]
c010b2db [timer_interrupt]
c0116e5f [bh_action]
c0116d98 [tasklet_hi_action]
c0116c9f [do_softirq]
c0107e41 [do_IRQ]
c0105120 [default_idle]
c0105120 [default_idle]
c0106b14 [ret_from_intr]
c0105120 [default_idle]
c0105120 [default_idle]
c0100018 [startup_32]
c0105143 [default_idle]
c01051a9 [cpu_idle]
c0105000 [init]
c0100197 [L6]

---- panic info 2.4.4-ac1 ----
CPU 0
EIP 0010:[<c0217354>]
EFLAGS 00010206
eax: c13c2060
ebx: fffffffd
ecx: 00000000
edx: cb73e35c
esi: 00000000
edi: 00000018
ebp: cbf72000
esp: c029feb0
ds: 0018
es: 0018
ss: 0018
Process swapper (pid: 0, stackpage=c029f000)

Call Trace:

c021e868 [ndisc_send_ns]
c01e916c [deliver_to_old_ones]
c021ed3d [ndisc_error_report]
c01e5d6b [ip_route_input_slow]
c01eb7eb [neigh_timer_handler]
c01eb6a4 [neigh_timer_handler]
c0119f02 [timer_bh]
c010b2db [timer_interrupt]
c0116e4f [bh_action]
c0116d88 [tasklet_hi_action]
c0116c8f [do_softirq]
c0107e41 [do_IRQ]
c0105120 [default_idle]
c0105120 [default_idle]
c0106b14 [ret_from_intr]
c0105120 [default_idle]
c0105120 [default_idle]
c0100018 [startup_32]
c0105143 [default_idle]
c01051a9 [cpu_idle]
c0105000 [init]
c0100197 [L6]

---- panic info 2.4.4 ----

CPU 0
EIP 0010:[<c021aa64>]
EFLAGS 00010206
eax: c13e3060
ebx: fffffffd
ecx: 00000000
edx: c80ef3dc
esi: 00000000
edi: 00000018
ebp: cbf7ac00
esp: c02b9eb0
ds: 0018
es: 0018
ss: 0018
Process swapper (pid: 0, stackpage=c02b9000)

Call Trace:

c0221fe8 [ndisc_send_ns]
c01ec2bc [deliver_to_old_ones]
c02224ed [ndisc_error_report]
c01e8d0b [ip_route_input_slow]
c01ee93b [neigh_timer_handler]
c01ee7f4 [neigh_timer_handler]
c0119402 [timer_bh]
c010aa3c [timer_interrupt]
c011634f [bh_action]
c0116288 [tasklet_hi_action]
c011618f [do_softirq]
c0107ec1 [do_IRQ]
c0105120 [default_idle]
c0105120 [default_idle]
c0106b24 [ret_from_intr]
c0105120 [default_idle]
c0105120 [default_idle]
c0100018 [startup_32]
c0105143 [default_idle]
c01051a9 [cpu_idle]
c0105000 [init]
c0100197 [L6]


--
Cliff Albert | IRCNet: #linux.nl, #ne2000, #linux, #freebsd.nl
cliff@oisec.net | #openbsd, #ipv6, #cu2.nl
-[ICQ: 18461740]--------| 6BONE: CA2-6BONE RIPE: CA3348-RIPE
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