[Astlinux-commits] SF.net SVN: astlinux:[7679] branches/1.0/project/astlinux/kernel-patches/ linux-911-suppress-RCU-CPU-stall-warnings.patch

[<abe...@us...>]

Revision: 7679
          http://sourceforge.net/p/astlinux/code/7679
Author:   abelbeck
Date:     2016-05-17 17:25:10 +0000 (Tue, 17 May 2016)
Log Message:
-----------
kernel, enable rcu_cpu_stall_suppress by default. Occasionally a 'user.err kernel: INFO: rcu_bh detected stall on CPU...' is generated, and a long history of kernel stall-warning false positives, so for production we now disable stall warnings.  This can be re-enabled at runtime with:
echo 0 >/sys/module/rcutree/parameters/rcu_cpu_stall_suppress

Added Paths:
-----------
    branches/1.0/project/astlinux/kernel-patches/linux-911-suppress-RCU-CPU-stall-warnings.patch

Added: branches/1.0/project/astlinux/kernel-patches/linux-911-suppress-RCU-CPU-stall-warnings.patch
===================================================================
--- branches/1.0/project/astlinux/kernel-patches/linux-911-suppress-RCU-CPU-stall-warnings.patch	                        (rev 0)
+++ branches/1.0/project/astlinux/kernel-patches/linux-911-suppress-RCU-CPU-stall-warnings.patch	2016-05-17 17:25:10 UTC (rev 7679)
@@ -0,0 +1,11 @@
+--- linux-custom/kernel/rcutree.c.orig	2016-05-17 11:18:36.318141162 -0500
++++ linux-custom/kernel/rcutree.c	2016-05-17 11:21:36.375884207 -0500
+@@ -210,7 +210,7 @@
+ module_param(qhimark, long, 0);
+ module_param(qlowmark, long, 0);
+ 
+-int rcu_cpu_stall_suppress __read_mostly;
++int rcu_cpu_stall_suppress __read_mostly = 1; /* 1 = suppress stall warnings. */
+ module_param(rcu_cpu_stall_suppress, int, 0644);
+ 
+ static void force_quiescent_state(struct rcu_state *rsp, int relaxed);

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