watchdog: Induce non secure watchdog bite for lockup
Induce non secure watchdog bite when ever kernel soft
lockup or hard lockups are detected. So that proper
context of cpus can be collected for debugging.
Change-Id: I613391d8d53fe52ce7934cdc910fb135c4e0fbf2
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
Signed-off-by: Channagoud Kadabi <ckadabi@codeaurora.org>
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index bf9885e..44ae68a 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -27,6 +27,7 @@
#include <linux/kvm_para.h>
#include <linux/perf_event.h>
#include <linux/kthread.h>
+#include <soc/qcom/watchdog.h>
/*
* The run state of the lockup detectors is controlled by the content of the
@@ -364,8 +365,11 @@
if (per_cpu(hard_watchdog_warn, next_cpu) == true)
return;
- if (hardlockup_panic)
- panic("Watchdog detected hard LOCKUP on cpu %u", next_cpu);
+ if (hardlockup_panic) {
+ pr_err("Watchdog detected hard LOCKUP on cpu %u",
+ next_cpu);
+ msm_trigger_wdog_bite();
+ }
else
WARN(1, "Watchdog detected hard LOCKUP on cpu %u", next_cpu);
@@ -427,6 +431,9 @@
return;
pr_emerg("Watchdog detected hard LOCKUP on cpu %d", this_cpu);
+ if (hardlockup_panic)
+ msm_trigger_wdog_bite();
+
print_modules();
print_irqtrace_events(current);
if (regs)
@@ -549,6 +556,9 @@
pr_emerg("BUG: soft lockup - CPU#%d stuck for %us! [%s:%d]\n",
smp_processor_id(), duration,
current->comm, task_pid_nr(current));
+
+ if (softlockup_panic)
+ msm_trigger_wdog_bite();
__this_cpu_write(softlockup_task_ptr_saved, current);
print_modules();
print_irqtrace_events(current);