Thread: GDB showing memory error

  1. #1
    Registered User
    Join Date
    Jan 2010

    GDB showing memory error


    I am facing a peculiar problem. When i am running my binary it is running fine. But when i am running with gdb it is showing some memory error. Can anyone tell what could be the reason for this?

    Thanks in advance

  2. #2
    Registered User
    Join Date
    May 2010
    Unless you post what's the error, what's the relevant code...
    Did you compile with -g option ? before running with gdb?
    You could also use valgrind to check memory problems with your program.

  3. #3
    Registered User
    Join Date
    Jan 2010
    I am having jni call from my code

    It is showing error like this

    Program received signal SIGSEGV, Segmentation fault.
    0x00002aaaac3dd66e in checked_jni_DeleteLocalRef () from /opt/jvm64/jdk1.6.0_17/jre/lib/amd64/server/


  4. #4
    Registered User
    Join Date
    Nov 2010
    Long Beach, CA
    Without seeing your code, I can't say for sure. My guess is you're probably passing an uninitialized pointer into checked_jni_DeleteLocalRef (perhaps by way of some other function that ultimately calls checked_jni_DeleteLocalRef). You're simply getting lucky that the uninitialized value is in a valid piece of memory when running normally, but it happens to be invalid when using the debugger.

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