• Jason Wessel's avatar
    kdb,debug_core: adjust master cpu switch logic against new debug_core locking · 495363d3
    Jason Wessel authored
    The kdb shell needs to enforce switching back to the original CPU that
    took the exception before restoring normal kernel execution.  Resuming
    from a different CPU than what took the original exception will cause
    problems with spin locks that are freed from the a different processor
    than had taken the lock.
    
    The special logic in dbg_cpu_switch() can go away entirely with
    because the state of what cpus want to be masters or slaves will
    remain unchanged between entry and exit of the debug_core exception
    context.
    Signed-off-by: default avatarJason Wessel <jason.wessel@windriver.com>
    495363d3
debug_core.c 23 KB