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-rw-r--r--rts/RtsStartup.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/rts/RtsStartup.c b/rts/RtsStartup.c
index a3dddb03f5..6dd8c555f1 100644
--- a/rts/RtsStartup.c
+++ b/rts/RtsStartup.c
@@ -285,6 +285,13 @@ hs_init_ghc(int *argc, char **argv[], RtsConfig rts_config)
/* Initialise libdw session pool */
libdwPoolInit();
+ /* Start the "ticker" and profiling timer but don't start until the
+ * scheduler is up. However, the ticker itself needs to be initialized
+ * before the scheduler to ensure that the ticker mutex is initialized as
+ * moreCapabilities will attempt to acquire it.
+ */
+ initTimer();
+
/* initialise scheduler data structures (needs to be done before
* initStorage()).
*/
@@ -366,7 +373,6 @@ hs_init_ghc(int *argc, char **argv[], RtsConfig rts_config)
initHeapProfiling();
/* start the virtual timer 'subsystem'. */
- initTimer();
startTimer();
#if defined(RTS_USER_SIGNALS)