Need Help Troubleshooting Mysterious Problem

The Basic Symptom:
After running an indeterminate (usually under 5) EJB operations driven from my web app all subsequent requests result in a browser stall wherein the progress bar inches ever so slowly toward infinity but never returns the requested page. The situation does not install until I close the browser and re-run the application.
My Configuration:
Oracle 8.1.5 on Windows NT
JDeveloper 3.0
Oracle Web-To-Go internal http/jsp/servlet engine as supplied with JDev 3.0
My Architecture:
Basically, I've got a number of .jsp pages which create session-level beans on startup. Each bean, in turn, grabs and holds a connection to a companion stateless EJB to service the session's requests.
The EJBs act as factories for standard java class files which are passed to the client (web/presentation) tier, are modified by the client via their browser session, and are returned to the EJB factory to be saved to the database (Oracle8i tables).
Please for Help:
Does anyone know if this is a known problem with any or all of the below:
a) My architecture (Please God NO!)
b) JServer and EJB handling (This would suck but maybe 8.1.6 would cure it)
c) A limitation of Web-to-Go's functionality
d) Something I'm not thinking of as a possibility???
ANY HELP YOU CAN PROVIDE WILL BE GREATLY APPRECIATED! (I HAVE TO DEMO THIS APP AS A PROTOTYPE ON THURSDAY AND DON'T WANT TO HAVE TO INCONSPICUOSLY STOP/START IT AGAIN AND AGAIN TO AVOID HANGS...)
Thanks in advance!
Will
null

Some additional information...
I can trace activity from the .jsp code to the webBean code. When the webBean code attempts to call a method on an EJB it never receives a response.
Will
null

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    You're welcome. I suspect there may be some confusion on which is which going on here. Repeaters and Access Points are two different things. Repeaters are single radio devices in most cases where the repeater takes the signal it is receiving from your router, and then re-broadcasts it. When this is done, half of the radio bandwidth goes towards receiving or sending data to and from your router. The other half of the radio bandwidth is spent transmitting to or receiving data from your devices that are connected to the repeater. It's similar to the game of Telephone. A direct connection to the network is faster, but if you must repeat the message over a medium you introduce delay. So, in more technical terms, a Wireless connection that operates at 20Mbps download or upload (Wireless is half duplex by nature) will operate at 10Mbps download or upload when attached to a repeater, since 10Mbps of the 20Mbps the repeater's radio can do is being used to transmit the message to one end.
    In some additional terms since this part of my post got chopped off, what an Access Point is would be essentially another wireless radio with a direct, wired connection to your network. It can be thought of as an Expressway. Each device chooses the best wireless signal to use in your network (Router or Wireless Access Point) and then has a connection directly into the network. Both radios can run at 20Mbps and a single device will be able to get 20Mbps from either unit. These require more work but in heavy wireless usage environments, it makes sense to use access points.
    ===========================
    jduesenb wrote:
    Thanks for the advice re. changing the channel. I'll try that. Since there seem to be about a dozen networks around here that mayne causing interference, that might help.
    Verizon tech support advised me that an access point would cut my bandwidth, but that a range extender would not. (????)  I have installed a range extender but I'm not sure it has made any difference. The problem has not happened since I did that, but since it is intermittent, I don't think that proves that the problem is solved.  AFAICS, the wireless speed has not changed in any significant way.
    =========================
    ========
    The first to bring me 1Gbps Fiber for $30/m wins!

  • Need help troubleshooting Kernel panics

    Hi,
    I have had two Kernel Panics in two days just now, and another one a few weeks ago. The logs don't help me as I am not familiar with the wording on the Mac side, and I cannot submit the error reports to Apple as it fails, probably because I run 10.5.8 and Apple discontinued suppoort for Leopard or something like that. I would need help trying to figure out from the error message whether it is likely hardware, software, network, etc.
    Here are the tope lines of the recent Kernel panic logs:
    Thu May  3 10:23:12 2012
    panic(cpu 1 caller 0x001AB0FE): Kernel trap at 0x00000000, type 14=page fault, registers:
    CR0: 0x8001003b, CR2: 0x00000000, CR3: 0x010a8000, CR4: 0x00000660
    EAX: 0x06b21480, EBX: 0x00001000, ECX: 0x00000000, EDX: 0x06c63b80
    CR2: 0x00000000, EBP: 0x21d5bdb8, ESI: 0x00000000, EDI: 0x03112d80
    EFL: 0x00010202, EIP: 0x00000000, CS:  0x00000008, DS:  0x00000010
    Error code: 0x00000010
    Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
    0x21d5bb68 : 0x12b4c6 (0x45f91c 0x21d5bb9c 0x13355c 0x0)
    0x21d5bbb8 : 0x1ab0fe (0x469a98 0x0 0xe 0x469248)
    0x21d5bc98 : 0x1a1713 (0x21d5bcb0 0x1cda6e60 0x21d5bdb8 0x0)
    0x21d5bca8 : 0x0 (0xe 0x48 0x707a0010 0x1cda0010)
    0x21d5bdb8 : 0x7f78c6 (0x2c7d300 0x3112d80 0x0 0x1000)
    0x21d5bde8 : 0xc9df27 (0x21d5be34 0x0 0x1000 0x0)
    0x21d5be58 : 0xca37e1 (0x2b8c800 0x2a54d00 0x2b95500 0x0)
    0x21d5be98 : 0xca28ba (0x2b62500 0x2a54d00 0x33606d1f 0x2b91a14)
    0x21d5beb8 : 0xbf5c6a (0x2c06d00 0x2b95500 0x0 0x0)
    0x21d5bef8 : 0xbf7332 (0x2b91a00 0x20 0x2b1c000 0x2b1c0dc)
    0x21d5bf48 : 0xbf44d2 (0x2b91a00 0x2cc5500 0x1b2d6000 0x1)
    0x21d5bf68 : 0x425d58 (0x2b97780 0x2b1cf20 0x21d5bf98 0x136efd)
    0x21d5bf98 : 0x425a3a (0x2b97980 0x3184f00 0x46d46b0 0xa129b2)
    0x21d5bfc8 : 0x1a14fc (0x2b97980 0x0 0x1a40b5 0x3d18208)
    Backtrace terminated-invalid frame pointer 0
          Kernel loadable modules in backtrace (with dependencies):
             com.apple.iokit.IOAHCIBlockStorage(1.2.2)@0xc9b000->0xcacfff
                dependency: com.apple.iokit.IOAHCIFamily(1.5.0)@0xbeb000
                dependency: com.apple.iokit.IOStorageFamily(1.5.6)@0x7e6000
             com.apple.driver.AppleAHCIPort(1.7.0)@0xbf1000->0xbfcfff
                dependency: com.apple.iokit.IOPCIFamily(2.6)@0x5db000
                dependency: com.apple.iokit.IOAHCIFamily(1.5.0)@0xbeb000
             com.apple.iokit.IOStorageFamily(1.5.6)@0x7e6000->0x7fdfff
    BSD process name corresponding to current thread: kernel_task
    Wed May  2 13:25:06 2012
    panic(cpu 0 caller 0x004312D7): "IOGMD: not wired for the IODMACommand"@/SourceCache/xnu/xnu-1228.15.4/iokit/Kernel/IOMemoryDescriptor.cp p:1311
    Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
    0x2318b9b8 : 0x12b4c6 (0x45f91c 0x2318b9ec 0x13355c 0x0)
    0x2318ba08 : 0x4312d7 (0x4a5ab4 0x0 0xc00bb3 0x2)
    0x2318ba88 : 0x42b7ba (0x3cdaf80 0x3 0x2b84800 0x80)
    0x2318bb68 : 0x42bdee (0x2b81680 0x42b2aa 0x2a 0x2318bbb0)
    0x2318bbd8 : 0x42c500 (0x2b81680 0x2a 0x2318bc88 0x142281)
    0x2318bc18 : 0xbe9c6d (0x2b81680 0x0 0x0 0x1000)
    0x2318bc88 : 0xbed5a3 (0x2b71200 0x2b81680 0x3cdaf80 0x1000)
    0x2318bcf8 : 0xbe35ef (0x2b71200 0x2b81680 0x2318bd28 0x42963b)
    0x2318bd38 : 0xbe3fea (0x2b71200 0x2b81680 0x0 0xc9d5b3)
    0x2318bd68 : 0xc97e50 (0x2b86980 0x2c01880 0x0 0x1a9ad9)
    0x2318bda8 : 0xc933cb (0x2b72800 0x2a4b790 0x2318bde8 0x7ed8c6)
    0x2318bde8 : 0xc93f4e (0x2b72700 0x2a4b790 0x1000 0x0)
    0x2318be58 : 0xc997e1 (0x2b72700 0x2a4a340 0x2b81680 0x0)
    0x2318be98 : 0xc988ba (0x2b72800 0x2a4a340 0x2318beb8 0x2b7123c)
    0x2318beb8 : 0xbebc6a (0x2bf5e00 0x2b81680 0x0 0x0)
    0x2318bef8 : 0xbed332 (0x2b71200 0x8000 0x0 0x2b774f0)
        Backtrace continues...
          Kernel loadable modules in backtrace (with dependencies):
             com.apple.iokit.IOAHCIBlockStorage(1.2.2)@0xc91000->0xca2fff
                dependency: com.apple.iokit.IOAHCIFamily(1.5.0)@0xbe1000
                dependency: com.apple.iokit.IOStorageFamily(1.5.6)@0x7dc000
             com.apple.driver.AppleAHCIPort(1.7.0)@0xbe7000->0xbf2fff
                dependency: com.apple.iokit.IOPCIFamily(2.6)@0x5db000
                dependency: com.apple.iokit.IOAHCIFamily(1.5.0)@0xbe1000
             com.apple.iokit.IOAHCIFamily(1.5.0)@0xbe1000->0xbe6fff
    BSD process name corresponding to current thread: kernel_task
    Fri Apr 13 14:35:28 2012
    panic(cpu 0 caller 0x001AB0FE): Kernel trap at 0x00040000, type 14=page fault, registers:
    CR0: 0x8001003b, CR2: 0x00040000, CR3: 0x0109f000, CR4: 0x00000660
    EAX: 0x0532c280, EBX: 0x00001000, ECX: 0x00000000, EDX: 0x055ef580
    CR2: 0x00040000, EBP: 0x21663db8, ESI: 0x00000000, EDI: 0x02deacc0
    EFL: 0x00010202, EIP: 0x00040000, CS:  0x00000008, DS:  0x00000010
    Error code: 0x00000010
    Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
    0x21663b68 : 0x12b4c6 (0x45f91c 0x21663b9c 0x13355c 0x0)
    0x21663bb8 : 0x1ab0fe (0x469a98 0x40000 0xe 0x469248)
    0x21663c98 : 0x1a1713 (0x21663cb0 0x1cda7760 0x21663db8 0x40000)
    0x21663ca8 : 0x40000 (0xe 0x48 0x3db0010 0x1cda0010)
    0x21663db8 : 0x7ed8c6 (0x2c5c400 0x2deacc0 0x0 0x1000)
    0x21663de8 : 0xc93f27 (0x21663e34 0x0 0x1000 0x0)
    0x21663e58 : 0xc997e1 (0x2bc2b00 0x2ba16e8 0x2ba8b00 0x0)
    0x21663e98 : 0xc988ba (0x2b66700 0x2ba16e8 0x0 0x2baee2c)
    0x21663eb8 : 0xbebc6a (0x2bddb80 0x2ba8b00 0x0 0x0)
    0x21663ef8 : 0xbed332 (0x2baee00 0x800 0x21663fc8 0x198fa3)
    0x21663f48 : 0xbea4d2 (0x2baee00 0x0 0x0 0x450)
    0x21663f68 : 0x425d58 (0x2badc80 0x0 0x0 0x0)
    0x21663f98 : 0x425a3a (0x2bade80 0x0 0x21663fc8 0x126204)
    0x21663fc8 : 0x1a14fc (0x2bade80 0x0 0x1a40b5 0x2c8b880)
    Backtrace terminated-invalid frame pointer 0
          Kernel loadable modules in backtrace (with dependencies):
             com.apple.iokit.IOAHCIBlockStorage(1.2.2)@0xc91000->0xca2fff
                dependency: com.apple.iokit.IOAHCIFamily(1.5.0)@0xbe1000
                dependency: com.apple.iokit.IOStorageFamily(1.5.6)@0x7dc000
             com.apple.driver.AppleAHCIPort(1.7.0)@0xbe7000->0xbf2fff
                dependency: com.apple.iokit.IOPCIFamily(2.6)@0x5db000
                dependency: com.apple.iokit.IOAHCIFamily(1.5.0)@0xbe1000
             com.apple.iokit.IOStorageFamily(1.5.6)@0x7dc000->0x7f3fff
    BSD process name corresponding to current thread: kernel_task
    Thanks,
    Vincent

    Some additional information which might help:
    MacBook,  2 GHz Intel Core 2 Duo, 1GB DDR2 SDRAM
    The last two kernel panics happened just as I hit "send" in Thunderbird, so it may be related. I fail to understand how such a simple command would crash a computer though.

  • Need help with illustrator problem

    First problem is when i selected object and try to move, the object is copying itself.
    Second is when i selected brushes or pencil, The smooth tool is appeal and i can not draw anything.
    Anyone know how to solve this problem?
    Cheers
    mimi

    Darn this problem just kicked in for me. I was working fine then suddenly dragging items is duplicating them as though I was pushing option. It doesn't happen though if I move an item with arrow keys. I've been using the character viewer and making characters using the option key so I could have pressed some key combo all unknowing. (Similar mystery problem happened when I automatically pressed cmd-H which is the combo for hide in most apps but not Illustrator. In Illustrator this inconveniantly hides edges. Now I know that if selection is a problem I should see if I cmd-H'ed at some point but I found this out the hard way :/ .)
    Additionally, when I type characters using the type tool I am NOT getting the characters that would happen when pressing option so the option key is not stuck. Nor is the option key malfunctioning in other apps. Moreover, I just tested and like the OP smooth tool is selected instead of pencil.
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