diff -r 7bdeb580be51 -r 56ecd2ae6e61 mozilla-pgo.patch
--- a/mozilla-pgo.patch	Mon Apr 04 10:22:27 2022 +0200
+++ b/mozilla-pgo.patch	Sun May 01 18:18:56 2022 +0200
@@ -1,11 +1,11 @@
 # HG changeset patch
 # User Wolfgang Rosenauer <wr@rosenauer.org>
-# Parent  ebd7e379c85889b6f8dba0542479110ab1f6b059
+# Parent  02ffee15578fd4dc2dd5ade32e7dab907d633b0d
 
 diff --git a/build/moz.configure/lto-pgo.configure b/build/moz.configure/lto-pgo.configure
 --- a/build/moz.configure/lto-pgo.configure
 +++ b/build/moz.configure/lto-pgo.configure
-@@ -243,34 +243,34 @@ def lto(
+@@ -242,34 +242,34 @@ def lto(
              "configure."
          )
  
@@ -181,10 +181,10 @@
 +  crashAfterMS = INT32_MAX;
 +
    UniquePtr<Options> options(new Options());
-   const PRIntervalTime ticksDuration =
-       PR_MillisecondsToInterval(HEARTBEAT_INTERVAL_MS);
-   options->crashAfterTicks = crashAfterMS / ticksDuration;
-   // Handle systems where ticksDuration is greater than crashAfterMS.
-   if (options->crashAfterTicks == 0) {
-     options->crashAfterTicks = crashAfterMS / HEARTBEAT_INTERVAL_MS;
-   }
+   // crashAfterTicks is guaranteed to be > 0 as
+   // crashAfterMS >= ADDITIONAL_WAIT_BEFORE_CRASH_MS >> HEARTBEAT_INTERVAL_MS
+   options->crashAfterTicks = crashAfterMS / HEARTBEAT_INTERVAL_MS;
+ 
+   DebugOnly<PRThread*> watchdogThread =
+       CreateSystemThread(RunWatchdog, options.release());
+   MOZ_ASSERT(watchdogThread);