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authorJason Wessel <jason.wessel@windriver.com>2010-08-13 21:44:04 +0400
committerJason Wessel <jason.wessel@windriver.com>2010-10-23 00:34:10 +0400
commitfb70b5888b70b0b50f738fbfc019445493112eb1 (patch)
treeee35bfc0e78af0702756d15e05ed09f0f56e18ac /kernel
parent16cdc628c3aed47d02205135b7e2f01e0064f566 (diff)
downloadlinux-fb70b5888b70b0b50f738fbfc019445493112eb1.tar.xz
debug_core: stop rcu warnings on kernel resume
When returning from the kernel debugger reset the rcu jiffies_stall value to prevent the rcu stall detector from sending NMI events which invoke a stack dump for each cpu in the system. Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/debug/debug_core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
index c812857d0b80..5a3b04d20497 100644
--- a/kernel/debug/debug_core.c
+++ b/kernel/debug/debug_core.c
@@ -47,6 +47,7 @@
#include <linux/pid.h>
#include <linux/smp.h>
#include <linux/mm.h>
+#include <linux/rcupdate.h>
#include <asm/cacheflush.h>
#include <asm/byteorder.h>
@@ -474,6 +475,7 @@ static void dbg_touch_watchdogs(void)
{
touch_softlockup_watchdog_sync();
clocksource_touch_watchdog();
+ rcu_cpu_stall_reset();
}
static int kgdb_cpu_enter(struct kgdb_state *ks, struct pt_regs *regs)