commit 85b6bce3658a823aa169586fe71ffba0f12ccc71
author Pavel Machek <pavel@suse.cz> Fri Mar 31 02:30:06 2006 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> Fri Mar 31 12:18:50 2006 -0800
tree ad2ca0b501d2ff767889d15dfda22abec75f38c4
parent 1a75a3f0680d9c4bc4761512658b6fd664032e18

[PATCH] Fix suspend with traced tasks

strace /bin/bash misbehaves after resume; this fixes it.

(akpm: it's scary calling refrigerator() in state TASK_TRACED, but it seems to
do the right thing).

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

kernel/power/process.c

diff --git a/kernel/power/process.c b/kernel/power/process.c
index 8ac7c35f..b2a5f67 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -26,8 +26,7 @@
 	    (p->flags & PF_NOFREEZE) ||
 	    (p->exit_state == EXIT_ZOMBIE) ||
 	    (p->exit_state == EXIT_DEAD) ||
-	    (p->state == TASK_STOPPED) ||
-	    (p->state == TASK_TRACED))
+	    (p->state == TASK_STOPPED))
 		return 0;
 	return 1;
 }

kernel/signal.c

diff --git a/kernel/signal.c b/kernel/signal.c
index 4922928..92025b1 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1560,6 +1560,7 @@
 	/* Let the debugger run.  */
 	set_current_state(TASK_TRACED);
 	spin_unlock_irq(&current->sighand->siglock);
+	try_to_freeze();
 	read_lock(&tasklist_lock);
 	if (likely(current->ptrace & PT_PTRACED) &&
 	    likely(current->parent != current->real_parent ||