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kgdb: clocksource watchdog

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In order to not trip the clocksource watchdog, kgdb must touch the
clocksource watchdog on the return to normal system run state.

Signed-off-by: Jason Wessel <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Jason Wessel 2008-02-15 14:55:54 -06:00 • committed by Ingo Molnar
commit 7c3078b637
3 changed files with 17 additions and 0 deletions
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4
kernel/kgdb.c
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@ -28,6 +28,7 @@
* kind, whether express or implied.
*/
#include <linux/pid_namespace.h>
#include <linux/clocksource.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/console.h>
@ -574,6 +575,7 @@ static void kgdb_wait(struct pt_regs *regs)
/* Signal the primary CPU that we are done: */
atomic_set(&cpu_in_kgdb[cpu], 0);
clocksource_touch_watchdog();
local_irq_restore(flags);
}
#endif
@ -1396,6 +1398,7 @@ acquirelock:
atomic_read(&kgdb_cpu_doing_single_step) != cpu) {
atomic_set(&kgdb_active, -1);
clocksource_touch_watchdog();
local_irq_restore(flags);
goto acquirelock;
@ -1487,6 +1490,7 @@ acquirelock:
kgdb_restore:
/* Free kgdb_active */
atomic_set(&kgdb_active, -1);
clocksource_touch_watchdog();
local_irq_restore(flags);
return error;