lkml.org 
[lkml]   [2005]   [Feb]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patches in this message
    /
    Date
    From
    SubjectRe: [patch] Real-Time Preemption, -RT-2.6.11-rc3-V0.7.38-01

    * Tom Rini <trini@kernel.crashing.org> wrote:

    > > please send me your .config - mine builds/boots/works fine.
    >
    > I don't have it handy anymore, but I just cp'd arch/x86_64/defconfig
    > to .config, ran oldconfig and turned RT off (PREEMPT_NONE=y) [...]

    thanks - managed to reproduce it this way. The patch below fixes the x64
    build error on !PREEMPT_RT and the resulting kernel boots fine as well,
    plus it fixes an x64 SMP build error as well. I have uploaded the -38-04
    release with this fix.

    Ingo

    --- linux/arch/x86_64/kernel/x8664_ksyms.c
    +++ linux/arch/x86_64/kernel/x8664_ksyms.c
    @@ -194,7 +194,7 @@ EXPORT_SYMBOL(rwsem_down_write_failed_th
    EXPORT_SYMBOL(empty_zero_page);

    #ifdef CONFIG_HAVE_DEC_LOCK
    -EXPORT_SYMBOL(_atomic_dec_and_lock);
    +EXPORT_SYMBOL(_atomic_dec_and_raw_spin_lock);
    #endif

    EXPORT_SYMBOL(die_chain);
    --- linux/arch/x86_64/lib/dec_and_lock.c
    +++ linux/arch/x86_64/lib/dec_and_lock.c
    @@ -10,7 +10,7 @@
    #include <linux/spinlock.h>
    #include <asm/atomic.h>

    -int _atomic_dec_and_lock(atomic_t *atomic, raw_spinlock_t *lock)
    +int _atomic_dec_and_raw_spin_lock(atomic_t *atomic, raw_spinlock_t *lock)
    {
    int counter;
    int newcount;
    --- linux/arch/x86_64/kernel/smp.c
    +++ linux/arch/x86_64/kernel/smp.c
    @@ -266,6 +266,16 @@ void smp_send_reschedule(int cpu)
    }

    /*
    + * this function sends a 'reschedule' IPI to all other CPUs.
    + * This is used when RT tasks are starving and other CPUs
    + * might be able to run them:
    + */
    +void smp_send_reschedule_allbutself(void)
    +{
    + send_IPI_allbutself(RESCHEDULE_VECTOR);
    +}
    +
    +/*
    * Structure and data for smp_call_function(). This is designed to minimise
    * static memory requirements. It also looks cleaner.
    */
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/
    \
     
     \ /
      Last update: 2005-03-22 14:10    [W:0.024 / U:31.428 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site