Messages in this thread Patch in this message | | | From | "Paul E. McKenney" <> | Subject | [PATCH tip/core/rcu 15/17] Prevent uninitialized string in RCU stall info | Date | Fri, 22 Jun 2012 08:35:10 -0700 |
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From: Carsten Emde <C.Emde@osadl.org>
An uninitialized string may be displayed at the end of the rcu_preempt detected stall info such as
0: (1 GPs behind) idle=075/140000000000000/0 =8?^D=8?^D ^^^^^^^^^^ if CONFIG_RCU_FAST_NO_HZ is not defined.
This trivial patch clears the string in this case.
Signed-off-by: Carsten Emde <C.Emde@osadl.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> --- kernel/rcutree_plugin.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h index d806186..321ba89 100644 --- a/kernel/rcutree_plugin.h +++ b/kernel/rcutree_plugin.h @@ -2205,6 +2205,7 @@ static void print_cpu_stall_fast_no_hz(char *cp, int cpu) static void print_cpu_stall_fast_no_hz(char *cp, int cpu) { + *cp = '\0'; } #endif /* #else #ifdef CONFIG_RCU_FAST_NO_HZ */ -- 1.7.8
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