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    SubjectLinux kernel crashes repeatedly
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    Date
    Hi Linux experts,

    I suddenly have a problem with Linux kernel crashes. It looks like a kernel
    problem.
    Maybe I can help to

    Here is my "bug report form":

    [1.] One line summary of the problem:
    Linux crashes without any report/log (everything freezes) when a "special
    IP-connection" is made through Linux as router.

    [2.] Full description of the problem/report:
    On a client in our (private) IP-network the software "Morpheus 1.33" from
    http://www.musiccity.com is started. When the Morpheus client connects to
    the "Morpheus Server" the Linux box freezes. Linux is our IP-router from
    192.168.1.x-network to Internet. On the Linux box iptables with
    Masquerading is running. The Internet port is pppoe connected to a ADSL
    modem.
    There is no logging information about the crash. Keyboard, network and
    everything else is frozen. Only hardware reset helps.
    We tested several times and the result is alway the same...

    [3.] Keywords (i.e., modules, networking, kernel):
    networking

    [4.] Kernel version (from /proc/version):
    root@al-net-mun-00:/usr/src/linux-2.4.4.SuSE > cat /proc/version
    Linux version 2.4.4 (root@al-net-mun-00) (gcc version 2.95.3 20010315
    (SuSE)) #4 Wed Nov 7 20:07:27 MET 2001

    [5.] Output of Oops.. message (if applicable) with symbolic information
    resolved (see Documentation/oops-tracing.txt)
    [6.] A small shell script or example program which triggers the
    problem (if possible)
    [7.] Environment
    [7.1.] Software (add the output of the ver_linux script here)
    root@al-net-mun-00:/usr/src/linux-2.4.4.SuSE > sh scripts/ver_linux
    If some fields are empty or look unusual you may have an old version.
    Compare to the current minimal requirements in Documentation/Changes.

    Linux al-net-mun-00 2.4.4 #4 Wed Nov 7 20:07:27 MET 2001 i586 unknown

    Gnu C 2.95.3
    Gnu make 3.79.1
    binutils 2.10.91.0.4
    util-linux 2.11b
    mount 2.11b
    modutils 2.4.5
    e2fsprogs 1.19
    pcmcia-cs 3.1.25
    PPP 2.4.0
    isdn4k-utils 3.1pre1a
    Linux C Library x 1 root root 1343073 Mai 11 2001
    /lib/libc.so.6
    Dynamic linker (ldd) 2.2.2
    Procps 2.0.7
    Net-tools 1.60
    Kbd 1.04
    Sh-utils 2.0
    Modules Loaded st pppoe pppox ipt_LOG ipt_limit ipt_state af_packet
    ppp_async ppp_generic ipt_MASQUERADE iptable_nat ip_conntrack
    ne2k-pci 8390 8139too iptable_filter ip_tables hisax isdn slhc ncr53c8xx

    [7.2.] Processor information (from /proc/cpuinfo):
    root@al-net-mun-00:/usr/src/linux-2.4.4.SuSE > cat /proc/cpuinfo
    processor : 0
    vendor_id : AuthenticAMD
    cpu family : 5
    model : 6
    model name : AMD-K6tm w/ multimedia extensions
    stepping : 2
    cpu MHz : 233.867
    cache size : 64 KB
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 1
    wp : yes
    flags : fpu vme de pse tsc msr mce cx8 mmx
    bogomips : 466.94

    [7.3.] Module information (from /proc/modules):
    root@al-net-mun-00:/usr/src/linux-2.4.4.SuSE > cat /proc/modules
    st 25264 0 (autoclean)
    pppoe 6624 2 (autoclean)
    pppox 1360 1 (autoclean) [pppoe]
    ipt_LOG 3472 3 (autoclean)
    ipt_limit 1152 3 (autoclean)
    ipt_state 864 7 (autoclean)
    af_packet 8304 2 (autoclean)
    ppp_async 6416 0 (autoclean) (unused)
    ppp_generic 13344 3 (autoclean) [pppoe pppox ppp_async]
    ipt_MASQUERADE 1392 3 (autoclean)
    iptable_nat 14256 0 (autoclean) [ipt_MASQUERADE]
    ip_conntrack 13424 2 (autoclean) [ipt_state ipt_MASQUERADE
    iptable_nat]
    ne2k-pci 4576 1 (autoclean)
    8390 6176 0 (autoclean) [ne2k-pci]
    8139too 11456 1 (autoclean)
    iptable_filter 2016 0 (autoclean) (unused)
    ip_tables 10656 8 [ipt_LOG ipt_limit ipt_state
    ipt_MASQUERADE iptable_nat iptable_filter]
    hisax 149520 7
    isdn 118544 8 [hisax]
    slhc 4768 3 [ppp_generic isdn]
    ncr53c8xx 51888 4

    [7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem)
    root@al-net-mun-00:/usr/src/linux-2.4.4.SuSE > cat /proc/ioports
    0000-001f : dma1
    0020-003f : pic1
    0040-005f : timer
    0060-006f : keyboard
    0080-008f : dma page reg
    00a0-00bf : pic2
    00c0-00df : dma2
    00f0-00ff : fpu
    0180-019f : HiSax hscx A
    02f8-02ff : serial(auto)
    03c0-03df : vga+
    03f8-03ff : serial(auto)
    0580-059f : HiSax hscx B
    0980-099f : HiSax isac
    0cf8-0cff : PCI conf1
    0d80-0d87 : teles3 cfg
    6000-60ff : VIA Technologies, Inc. VT82C586B ACPI
    f200-f21f : NetVin NV5000SC
    f200-f21f : ne2k-pci
    f300-f3ff : Realtek Semiconductor Co., Ltd. RTL-8139
    f300-f3ff : 8139too
    f400-f4ff : Symbios Logic Inc. (formerly NCR) 53c875
    f400-f47f : ncr53c8xx

    root@al-net-mun-00:/usr/src/linux-2.4.4.SuSE > cat /proc/iomem
    00000000-0009ffff : System RAM
    000a0000-000bffff : Video RAM area
    000c0000-000c7fff : Video ROM
    000c8000-000ca1ff : Extension ROM
    000f0000-000fffff : System ROM
    00100000-03ffffff : System RAM
    00100000-001b96d0 : Kernel code
    001b96d1-001fb65f : Kernel data
    e0000000-e3ffffff : S3 Inc. 86c764/765 [Trio32/64/64V+]
    e4000000-e40000ff : Realtek Semiconductor Co., Ltd. RTL-8139
    e4000000-e40000ff : 8139too
    e4001000-e40010ff : Symbios Logic Inc. (formerly NCR) 53c875
    e4002000-e4002fff : Symbios Logic Inc. (formerly NCR) 53c875
    ffff0000-ffffffff : reserved

    [7.5.] PCI information ('lspci -vvv' as root)
    root@al-net-mun-00:/usr/src/linux-2.4.4.SuSE > lspci -vvv
    00:00.0 Host bridge: VIA Technologies, Inc. VT82C585VP [Apollo VP1/VPX]
    (rev 23)

    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR- FastB2B-
    Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
    Latency: 32

    00:07.0 ISA bridge: VIA Technologies, Inc. VT82C586/A/B PCI-to-ISA [Apollo
    VP] (rev 41)
    Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr-
    Stepping+ SERR- FastB2B-
    Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
    Latency: 0

    00:07.3 Non-VGA unclassified device: VIA Technologies, Inc. VT82C586B ACPI
    (rev10)
    Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR- FastB2B-
    Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-

    00:08.0 Ethernet controller: NetVin NV5000SC
    Subsystem: NetVin RT8029-Based Ethernet Adapter
    Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR- FastB2B-
    Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
    Interrupt: pin A routed to IRQ 9
    Region 0: I/O ports at f200 [size=32]

    00:09.0 VGA compatible controller: S3 Inc. 86c764/765 [Trio32/64/64V+] (rev
    54)(prog-if 00 [VGA])
    Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR- FastB2B-
    Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
    Interrupt: pin A routed to IRQ 11
    Region 0: Memory at e0000000 (32-bit, non-prefetchable) [size=64M]
    Expansion ROM at <unassigned> [disabled] [size=64K]

    00:0a.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139 (rev
    10)
    Subsystem: Realtek Semiconductor Co., Ltd. RT8139
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
    Latency: 32 (8000ns min, 16000ns max)
    Interrupt: pin A routed to IRQ 5
    Region 0: I/O ports at f300 [size=256]
    Region 1: Memory at e4000000 (32-bit, non-prefetchable) [size=256]
    Capabilities: [50] Power Management version 2
    Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
    PME(D0-,D1+,D2+,D3hot+,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:0b.0 SCSI storage controller: Symbios Logic Inc. (formerly NCR) 53c875
    (rev 03)
    Subsystem: Tekram Technology Co.,Ltd. DC390F Ultra Wide SCSI
    Controller
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR- FastB2B-
    Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
    Latency: 32 (4250ns min, 16000ns max), cache line size 08
    Interrupt: pin A routed to IRQ 12
    Region 0: I/O ports at f400 [size=256]
    Region 1: Memory at e4001000 (32-bit, non-prefetchable) [size=256]
    Region 2: Memory at e4002000 (32-bit, non-prefetchable) [size=4K]
    Expansion ROM at <unassigned> [disabled] [size=64K]

    [7.6.] SCSI information (from /proc/scsi/scsi)
    root@al-net-mun-00:/usr/src/linux-2.4.4.SuSE > cat /proc/scsi/scsi
    Attached devices:
    Host: scsi0 Channel: 00 Id: 00 Lun: 00
    Vendor: IBM Model: DCAS-34330 Rev: S65A
    Type: Direct-Access ANSI SCSI revision: 02
    Host: scsi0 Channel: 00 Id: 02 Lun: 00
    Vendor: HP Model: C1537A Rev: L708
    Type: Sequential-Access ANSI SCSI revision: 02
    Host: scsi0 Channel: 00 Id: 03 Lun: 00
    Vendor: TOSHIBA Model: CD-ROM XM-5701TA Rev: 1557
    Type: CD-ROM ANSI SCSI revision: 02

    [7.7.] Other information that might be relevant to the problem
    (please look in /proc and include all information that you
    think to be relevant):
    [X.] Other notes, patches, fixes, workarounds:


    ---------------------------------------------------------
    Roland Boden

    Activelink GmbH

    Post: Bahnhofstr. 36, D-85591 Vaterstetten
    eMail: rb@activelink.de
    Phone: +49 (0) 8106 3795 11
    Fax: +49 (0) 8106 3795 20
    Internet: http://www.activelink.de
    ---------------------------------------------------------

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