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authorIngo Molnar <mingo@elte.hu>2008-01-30 07:33:24 -0500
committerIngo Molnar <mingo@elte.hu>2008-01-30 07:33:24 -0500
commitad8ca495bd3e03e6751fc0c6a6af44018ebb4036 (patch)
tree33dafcf26cad883f0eac2f4119408e60195614b1
parentdf43510b18b8439465b4b58556f0495b5f5d771e (diff)
x86: add warning to check_tsc_warp()
add warning to check_tsc_warp() - if get_cycles() does not progress. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--arch/x86/kernel/tsc_sync.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c
index 7110078f242c..0577825cf89b 100644
--- a/arch/x86/kernel/tsc_sync.c
+++ b/arch/x86/kernel/tsc_sync.c
@@ -87,7 +87,11 @@ static __cpuinit void check_tsc_warp(void)
87 nr_warps++; 87 nr_warps++;
88 __raw_spin_unlock(&sync_lock); 88 __raw_spin_unlock(&sync_lock);
89 } 89 }
90 90 }
91 if (!(now-start)) {
92 printk("Warning: zero tsc calibration delta: %Ld [max: %Ld]\n",
93 now-start, end-start);
94 WARN_ON(1);
91 } 95 }
92} 96}
93 97