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    SubjectIPv6 implementation in kernel 2.4.4 oopses

    Can I be cc'ed at (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:

    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/ (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 Ignoring
    ksyms_base entry
    *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
    c020ce8d cfcab780 010000e0 7d4985ce cfcab780 fffffffd ccf90d84
    c15ac800 c023fe74 c15ac800 ccf90d20 ccf90d84 ccf90d84 00000000
    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
    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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