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SubjectIPv6 implementation in kernel 2.4.4 oopses
Hi,

Can I be cc'ed at lmcdgor@lmc.ericsson.se (as per a normal reply) ?
Thank you.

Included at the end is the ksymoops output after the crash (one of them
anyhow :-)

My setup involves 2 PII installed with Linux RedHat 7.0 and 2.4.4 kernel
with IPv6 enabled:
CONFIG_EXPERIMENTAL=y
CONFIG_IPV6=y
CONFIG_IPV6_EUI64=y
CONFIG_IPV6_NO_PB=y

Also, the following application web servers were installed (enabled for
IPv6) :
Jigsaw 2.2.0
Tomcat 3.2.1
Apache 1.3.19

To enable IPv6 with the Java based web servers, I used jipsy 0.2.1.
Lastly, netkit 0.5.1 was installed containing in particular ping6 utility.

To reproduce the crash, I ping6'ed one machine from the other in
command-line mode, no servers running. That's it. Originally, the first
crash occurred in a X server environment while querying the web servers
in IPv6.

Thank you,

David Gordon
Ericsson Research



Here's the output:
**************
ksymoops 2.3.4 on i686 2.4.4. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.4/ (default)
-m /usr/src/linux/System.map (default)

Warning: You did not tell me where to find symbol information. I will
assume that the log matches the kernel and modules that are running
right now and I'll use the default options above for symbol resolution.
If the current kernel and/or modules do not match the log, you can get
more accurate output by telling me the kernel version and where to find
map, modules, ksyms etc. ksymoops -h explains the options.

No modules in ksyms, skipping objects
Warning (read_lsmod): no symbols in lsmod, is /proc/modules a valid
lsmod file?
Warning (compare_maps): ksyms_base symbol
__VERSIONED_SYMBOL(shmem_file_setup) not found in System.map. Ignoring
ksyms_base entry
c0237bc4
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c0237bc4>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010206
eax: c157c040 ebx: fffffffd ecx: 00000000 edx: 00000000
esi: 00000000 edi: 00000018 ebp: c15ac800 esp: c02f1e84
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 0, stackpage=c02f100)
Stack: c023f913 00000000 00000000 c157c040 cfb8ebd4 c022fc6b cfcab780
00000000
c020ce8d cfcab780 010000e0 7d4985ce cfcab780 fffffffd ccf90d84
00000000
c15ac800 c023fe74 c15ac800 ccf90d20 ccf90d84 ccf90d84 00000000
c15ac800
Call Trace: [<c023f913>] [<c022fc6b>] [<c020ce8d>] [<c023fe74>]
[<c020e986>] [<c023fdc0>] [<c02088a0>]
[<c011ac90>] [<c0208710>] [<c011afb6>] [<c0117dfc>] [<c0117cb5>]
[<c0117b2d>] [<c0108a07>] [<c01051a0>]
[<c0106ef8>] [<c01051a0>] [<c0100018>] [<c01051cc>] [<c0105252>]
[<c0105000>] [<c01001cf>]
Code: 8b 11 f7 c2 e0 00 00 00 74 14 89 d0 25 e0 00 00 00 3d e0 00
>>EIP; c0237bc4 <ipv6_addr_type+4/e0> <=====
Trace; c023f913 <ndisc_send_ns+33/250>
Trace; c022fc6b <igmp_rcv+15b/170>
Trace; c020ce8d <ip_route_input+11d/190>
Trace; c023fe74 <ndisc_solicit+b4/c0>
Trace; c020e986 <ip_rcv+2f6/380>
Trace; c023fdc0 <ndisc_solicit+0/c0>
Trace; c02088a0 <neigh_timer_handler+190/1d0>
Trace; c011ac90 <update_process_times+20/a0>
Trace; c0208710 <neigh_timer_handler+0/1d0>
Trace; c011afb6 <timer_bh+256/2b0>
Trace; c0117dfc <bh_action+4c/b0>
Trace; c0117cb5 <tasklet_hi_action+55/90>
Trace; c0117b2d <do_softirq+6d/a0>
Trace; c0108a07 <do_IRQ+e7/100>
Trace; c01051a0 <default_idle+0/40>
Trace; c0106ef8 <ret_from_intr+0/20>
Trace; c01051a0 <default_idle+0/40>
Trace; c0100018 <startup_32+18/cb>
Trace; c01051cc <default_idle+2c/40>
Trace; c0105252 <cpu_idle+52/70>
Trace; c0105000 <init+0/180>
Trace; c01001cf <L6+0/2>
Code; c0237bc4 <ipv6_addr_type+4/e0>
00000000 <_EIP>:
Code; c0237bc4 <ipv6_addr_type+4/e0> <=====
0: 8b 11 mov (%ecx),%edx <=====
Code; c0237bc6 <ipv6_addr_type+6/e0>
2: f7 c2 e0 00 00 00 test $0xe0,%edx
Code; c0237bcc <ipv6_addr_type+c/e0>
8: 74 14 je 1e <_EIP+0x1e> c0237be2
<ipv6_addr_type+22/e0>
Code; c0237bce <ipv6_addr_type+e/e0>
a: 89 d0 mov %edx,%eax
Code; c0237bd0 <ipv6_addr_type+10/e0>
c: 25 e0 00 00 00 and $0xe0,%eax
Code; c0237bd5 <ipv6_addr_type+15/e0>
11: 3d e0 00 00 00 cmp $0xe0,%eax
Kernel panic: Aiee, killing interrupt handler!

3 warnings issued. Results may not be reliable.
***********************
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