Messages in this thread Patch in this message | | | Date | Mon, 11 Feb 2002 18:44:56 +0100 (MET) | From | Mikael Pettersson <> | Subject | [PATCH] 2.5.4 PREEMPT on UP x86 breakage |
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In 2.5.4, CONFIG_PREEMPT breaks UP x86 kernels by triggering the BUG in release_kernel_lock(), kernel/sched.c, line 664. The patch below fixed it for me. It's a bit crude, but smp.h doesn't export the #define if CONFIG_SMP is disabled.
/Mikael
--- linux-2.5.4/include/asm-i386/smplock.h.~1~ Mon Feb 11 12:21:46 2002 +++ linux-2.5.4/include/asm-i386/smplock.h Mon Feb 11 16:55:18 2002 @@ -15,7 +15,7 @@ #else #ifdef CONFIG_PREEMPT #define kernel_locked() preempt_get_count() -#define global_irq_holder 0 +#define global_irq_holder 0xFF /* XXX: NO_PROC_ID */ #else #define kernel_locked() 1 #endif - 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/
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