From 5dec3764c1fabaa7dfbe89b285ecbcad0a332106 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=B8ren=20Sandmann?= <sandmann@redhat.com>
Date: Fri, 21 Jan 2005 16:27:41 +0000
Subject: [PATCH] Some updates - add note about SMP kernels.
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Fri Jan 21 11:23:54 2005  Søren Sandmann  <sandmann@redhat.com>

	* README: Some updates - add note about SMP kernels.

	* sysprof-module.c: Go back to just sampling the current
	process.

	* ChangeLog: I guess these do make sense, so start one.
---
 ChangeLog        |  8 ++++++++
 README           |  5 +++--
 sysprof-module.c | 10 +++++++++-
 3 files changed, 20 insertions(+), 3 deletions(-)
 create mode 100644 ChangeLog

diff --git a/ChangeLog b/ChangeLog
new file mode 100644
index 00000000..44923392
--- /dev/null
+++ b/ChangeLog
@@ -0,0 +1,8 @@
+Fri Jan 21 11:23:54 2005  Søren Sandmann  <sandmann@redhat.com>
+
+	* README: Some updates - add note about SMP kernels.
+
+	* sysprof-module.c: Go back to just sampling the current
+	process.
+
+	* ChangeLog: I guess these do make sense, so start one.
diff --git a/README b/README
index d2212cf3..a061b75f 100644
--- a/README
+++ b/README
@@ -4,10 +4,11 @@ program "sysprof".
 
 - There is no auto* stuff. Just type "make" and hope for the best
 
-- You need gtk+ 2.4.0 or better. If you are using gtk+ 2.5 or greater,
+- You need gtk+ 2.4.0 or better. If you are using gtk+ 2.5 or newer
   you also need libglade cvs HEAD.
 
-- You need a 2.6 kernel
+- You need a 2.6 kernel. On SMP kernels the module seems to crash the system
+  from time to time, so you might want to stick with UP kernels.
 
 - The programs you want to profile should have debugging symbols, or
   you won't get much usable information. On a Fedora Core system,
diff --git a/sysprof-module.c b/sysprof-module.c
index 4b5711a9..67301f3e 100644
--- a/sysprof-module.c
+++ b/sysprof-module.c
@@ -302,14 +302,22 @@ queue_generate_stack_trace (struct task_struct *cur)
 static void
 on_timer(unsigned long dong)
 {
+#if 0
 	struct task_struct *p;
+#endif
 
 	static const int cpu_profiler = 1; /* set to 0 to profile disk */
+
+	if (current && current->pid != 0) {
+#if 0
 	
 	for_each_process (p) {
 		if (p->state == (cpu_profiler? TASK_RUNNING : TASK_UNINTERRUPTIBLE)) {
-			queue_generate_stack_trace (p);
+#endif
+			queue_generate_stack_trace (current);
+#if 0
 		}
+#endif
 	}
 	
 	add_timeout (INTERVAL, on_timer);