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authorDou Liyang <douly.fnst@cn.fujitsu.com>2017-10-09 17:03:33 +0800
committerIngo Molnar <mingo@kernel.org>2017-10-10 11:45:42 +0200
commit6be53520ad8f87dc748f381e4e8e6a846a4b466b (patch)
tree961c29c19cdf732eb2415f5238eeec7fe7118fb5
parent4bdced5c9a2922521e325896a7bbbf0132c94e56 (diff)
x86/tsc: Append the 'tsc=' description for the 'tsc=unstable' boot parameter
Commit: 8309f86cd41e ("x86/tsc: Provide 'tsc=unstable' boot parameter") added a new 'tsc=unstable' parameter, but didn't document it. Document it. Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: <corbet@lwn.net> Cc: <pasha.tatashin@oracle.com> Cc: <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1507539813-11420-1-git-send-email-douly.fnst@cn.fujitsu.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 05496622b4ef..6b99c8b77c59 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4194,6 +4194,9 @@
Used to run time disable IRQ_TIME_ACCOUNTING on any
platforms where RDTSC is slow and this accounting
can add overhead.
+ [x86] unstable: mark the TSC clocksource as unstable, this
+ marks the TSC unconditionally unstable at bootup and
+ avoids any further wobbles once the TSC watchdog notices.
turbografx.map[2|3]= [HW,JOY]
TurboGraFX parallel port interface