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I'm facing problem in kernel memory allocation, that is when i'm trying to allocate 64MB contiguous memory in kernel using get_free_pages. The kernel fails to allocate the memory and kernel ...
  1. 12-01-2011 #1
    athiraj
    athiraj is offline
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    Support for Kenel memory allocation

    I'm facing problem in kernel memory allocation, that is when i'm trying to allocate 64MB contiguous memory in kernel using get_free_pages. The kernel fails to allocate the memory and kernel crash is happening. can anyone suggest me to rid of this problem ASAP.
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  2. 12-01-2011 #2
    cbogdan
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    Hi athiraj,

    With get_free_pages You have a power of two multiple of PAGE_SIZE contiguous physical (consecutive) pages. It's possible to have some problems to allocate memory particularly when GFP_ATOMIC flag is used. And before the allocation, try to free pages with free_pages().
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