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    Subjectfork/open race results in wasted fd
    Two tasks (A & B) share the same files_struct. A calls open() at the same time
    as B calls fork(). After A runs get_unused_fd() but before it calls
    fd_install(), B runs copy_files().

    It looks like the result is one of the bits is set in B's open_fds field with no
    corresponding file pointer in its fd array. The fd is unusable, and attempting
    to close() it would return EBADF.

    Is this a known race?

    -Brian (please copy me in response)
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      Last update: 2005-03-22 12:54    [W:0.020 / U:4.992 seconds]
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