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-rw-r--r--include/asm-powerpc/processor.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-powerpc/processor.h b/include/asm-powerpc/processor.h
index cf83f2d7e2a..a1deed85f31 100644
--- a/include/asm-powerpc/processor.h
+++ b/include/asm-powerpc/processor.h
@@ -81,6 +81,10 @@ extern struct task_struct *last_task_used_altivec;
extern struct task_struct *last_task_used_spe;
#ifdef CONFIG_PPC32
+
+#if CONFIG_TASK_SIZE > CONFIG_KERNEL_START
+#error User TASK_SIZE overlaps with KERNEL_START address
+#endif
#define TASK_SIZE (CONFIG_TASK_SIZE)
/* This decides where the kernel will search for a free chunk of vm