From: Julian Seward <jseward@acm.org>
Date: Sat, 9 Apr 2005 18:24:19 +0000 (+0000)
Subject: Record useful info from Jeremy.
X-Git-Tag: svn/VALGRIND_3_0_0~789
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d0ac5b356f937767d5553286800a315857e86056;p=thirdparty%2Fvalgrind.git

Record useful info from Jeremy.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3529
---

diff --git a/THREADS_SYSCALLS_SIGNALS.txt b/THREADS_SYSCALLS_SIGNALS.txt
index 3f06d7108a..5a083c1222 100644
--- a/THREADS_SYSCALLS_SIGNALS.txt
+++ b/THREADS_SYSCALLS_SIGNALS.txt
@@ -19,6 +19,13 @@ extern void VG_(set_sleeping) ( ThreadId tid, ThreadStatus state );
 
 The master semaphore is run_sema in vg_scheduler.c.
 
+
+(what happens at a fork?)
+
+VG_(scheduler_init) registers sched_fork_cleanup as a child atfork
+handler.  sched_fork_cleanup, among other things, reinitializes the
+semaphore with a new pipe so the process has its own.
+
 --------------------------------------------------------------------
 
 Re:   New World signal handling