gistfile1.txt

commit 363ce14e92f96a1207235391412331e2fc55680a
Author: Austin Lund <[email protected]>
Date:   Tue May 27 10:47:47 2014 +1000

    Change profiler to use SIGUSR2.
    
    It appears that some libraries mask SIGUSR1 for their own purposes.
    This solution is a bit of a hack, but it does allow the profiler to
    work in some more situations than currently.

diff --git a/src/profile.c b/src/profile.c
index 33ab317..8c410cb 100644
--- a/src/profile.c
+++ b/src/profile.c
@@ -358,13 +358,13 @@ DLLEXPORT int jl_profile_start_timer(void)
     sa.sa_flags = SA_SIGINFO;
     sa.sa_sigaction = profile_bt;
     sigemptyset(&sa.sa_mask);
-    if (sigaction(SIGUSR1, &sa, NULL) == -1)
+    if (sigaction(SIGUSR2, &sa, NULL) == -1)
         return -1;
 
     // Establish the signal event
     memset(&sigprof, 0, sizeof(struct sigevent));
     sigprof.sigev_notify = SIGEV_SIGNAL;
-    sigprof.sigev_signo = SIGUSR1;
+    sigprof.sigev_signo = SIGUSR2;
     sigprof.sigev_value.sival_ptr = &timerprof;
     if (timer_create(CLOCK_REALTIME, &sigprof, &timerprof) == -1)
         return -2;