• Thomas Gleixner's avatar
    pps: make pps_gen_parport depend on BROKEN · 95b90afe
    Thomas Gleixner authored
    This driver causes hard lockups, when the active clock soure is jiffies.
    
    The reason is that it loops with interrupts disabled waiting for a
    timestamp to be reached by polling getnstimeofday().  Though with a
    jiffies clocksource, when that code runs on the same CPU which is
    responsible for updating jiffies, then we loop in circles for ever
    simply because the timer interrupt cannot update jiffies.  So both UP
    and SMP can be affected.
    
    There is no easy fix for that problem so make it depend on BROKEN for
    now.
    Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
    Cc: Alexander Gordeev <lasaine@lvk.cs.msu.su>
    Cc: Rodolfo Giometti <giometti@linux.it>
    Cc: john stultz <johnstul@us.ibm.com>
    Cc: Ingo Molnar <mingo@elte.hu>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    95b90afe
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