Provide a paragraph about Solaris agent thread in advanced concepts

n-i-bz

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@16132

diff --git a/docs/xml/manual-core-adv.xml b/docs/xml/manual-core-adv.xml
index ee13ecf1282ad71b0a61258b7d230f3526997f20..a5ac0cf2647645fcca780a8047f2a8b44b6d72f4 100644 (file)
--- a/docs/xml/manual-core-adv.xml
+++ b/docs/xml/manual-core-adv.xml
@@ -1057,6 +1057,12 @@ $5 = 36
      OS X or Android.
      </para>
 
+     <para>Unblocking processes blocked in system calls is implemented
+     via agent thread on Solaris. This is quite a different approach
+     than using ptrace on Linux, but leads to equivalent result - Valgrind
+     gdbserver is invoked. Note that agent thread is a Solaris OS
+     feature and cannot be disabled.
+     </para>
    </listitem>
 
    <listitem>