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    SubjectBUG: Kernel Panic: kernel-2.6.1 for alpha in scsi context ll_rw_blk.c
    Hello

    I test the new 2.6.1 kernel and run in the same problem as before.
    The reason is, that the patch from Ivan isn´t there in the kernel
    source tree.

    Please add the patch to the mainline.

    Tom

    Thomas Steudten wrote:

    > Hi
    >
    > With the patch from Ivan, the prefetch problem is gone.
    > Please add this patch to the mainline for 2.6.0 for alpha.
    >
    > Regards
    > Tom
    >
    >> We shouldn't prefetch the spinlocks on UP.
    >>
    >> Ivan.
    >>
    >> --- 2.6/include/asm-alpha/processor.h Sat Oct 25 22:44:54 2003
    >> +++ linux/include/asm-alpha/processor.h Tue Nov 18 01:48:39 2003
    >> @@ -78,6 +78,11 @@ unsigned long get_wchan(struct task_stru
    >> #define ARCH_HAS_PREFETCHW
    >> #define ARCH_HAS_SPINLOCK_PREFETCH
    >>
    >> +#ifndef CONFIG_SMP
    >> +/* Nothing to prefetch. */
    >> +#define spin_lock_prefetch(lock) do { } while (0)
    >> +#endif
    >> +
    >> #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
    >> extern inline void prefetch(const void *ptr) { @@ -89,10 +94,13 @@
    >> extern inline void prefetchw(const void __builtin_prefetch(ptr,
    >> 1, 3);
    >> }
    >>
    >> +#ifdef CONFIG_SMP
    >> extern inline void spin_lock_prefetch(const void *ptr) {
    >> __builtin_prefetch(ptr, 1, 3);
    >> }
    >> +#endif
    >> +
    >> #else
    >> extern inline void prefetch(const void *ptr) { @@ -104,10 +112,13
    >> @@ extern inline void prefetchw(const void __asm__ ("ldq $31,%0"
    >> : : "m"(*(char *)ptr)); }
    >>
    >> +#ifdef CONFIG_SMP
    >> extern inline void spin_lock_prefetch(const void *ptr) {
    >> __asm__ ("ldq $31,%0" : : "m"(*(char *)ptr)); }
    >> +#endif
    >> +
    >> #endif /* GCC 3.1 */
    >>
    >> #endif /* __ASM_ALPHA_PROCESSOR_H */
    >
    >

    --
    Tom

    LINUX user since kernel 0.99.x 1994.
    RPM Alpha packages at http://alpha.steudten.com/packages
    Want to know what S.u.S.E 1995 cdrom-set contains?


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