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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-05 15:33:27 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-05 15:33:27 -0800 |
| commit | 6ec22f9b037fc0c2e00ddb7023fad279c365324d (patch) | |
| tree | 4da7e3b3c0213317dd17c6535876171865e24315 /arch/x86/kernel/tsc_sync.c | |
| parent | 83be7d764dc4b860712e392197ec27645f9d74a8 (diff) | |
| parent | 9b3660a55a9052518c91cc7c62d89e22f3f6f490 (diff) | |
Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: Limit number of per cpu TSC sync messages
x86: dumpstack, 64-bit: Disable preemption when walking the IRQ/exception stacks
x86: dumpstack: Clean up the x86_stack_ids[][] initalization and other details
x86, cpu: mv display_cacheinfo -> cpu_detect_cache_sizes
x86: Suppress stack overrun message for init_task
x86: Fix cpu_devs[] initialization in early_cpu_init()
x86: Remove CPU cache size output for non-Intel too
x86: Minimise printk spew from per-vendor init code
x86: Remove the CPU cache size printk's
cpumask: Avoid cpumask_t in arch/x86/kernel/apic/nmi.c
x86: Make sure we also print a Code: line for show_regs()
Diffstat (limited to 'arch/x86/kernel/tsc_sync.c')
| -rw-r--r-- | arch/x86/kernel/tsc_sync.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c index f37930954d15..eed156851f5d 100644 --- a/arch/x86/kernel/tsc_sync.c +++ b/arch/x86/kernel/tsc_sync.c @@ -114,13 +114,12 @@ void __cpuinit check_tsc_sync_source(int cpu) return; if (boot_cpu_has(X86_FEATURE_TSC_RELIABLE)) { - printk_once(KERN_INFO "Skipping synchronization checks as TSC is reliable.\n"); + if (cpu == (nr_cpu_ids-1) || system_state != SYSTEM_BOOTING) + pr_info( + "Skipped synchronization checks as TSC is reliable.\n"); return; } - pr_info("checking TSC synchronization [CPU#%d -> CPU#%d]:", - smp_processor_id(), cpu); - /* * Reset it - in case this is a second bootup: */ @@ -142,12 +141,14 @@ void __cpuinit check_tsc_sync_source(int cpu) cpu_relax(); if (nr_warps) { - printk("\n"); + pr_warning("TSC synchronization [CPU#%d -> CPU#%d]:\n", + smp_processor_id(), cpu); pr_warning("Measured %Ld cycles TSC warp between CPUs, " "turning off TSC clock.\n", max_warp); mark_tsc_unstable("check_tsc_sync_source failed"); } else { - printk(" passed.\n"); + pr_debug("TSC synchronization [CPU#%d -> CPU#%d]: passed\n", + smp_processor_id(), cpu); } /* |