svn commit: r290325 - stable/10/sys/kern

[Konstantin Belousov]

Author: kib
Date: Tue Nov  3 08:33:24 2015
New Revision: 290325
URL: https://svnweb.freebsd.org/changeset/base/290325

Log:
  MFC r289661:
  Mark struct thread zone as type-stable, to prevent dereference of the
  freed memory in the locks spin loops.

Modified:
  stable/10/sys/kern/kern_thread.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/kern/kern_thread.c
==============================================================================
--- stable/10/sys/kern/kern_thread.c	Tue Nov  3 08:31:01 2015	(r290324)
+++ stable/10/sys/kern/kern_thread.c	Tue Nov  3 08:33:24 2015	(r290325)
@@ -280,7 +280,7 @@ threadinit(void)
 
 	thread_zone = uma_zcreate("THREAD", sched_sizeof_thread(),
 	    thread_ctor, thread_dtor, thread_init, thread_fini,
-	    16 - 1, 0);
+	    16 - 1, UMA_ZONE_NOFREE);
 	tidhashtbl = hashinit(maxproc / 2, M_TIDHASH, &tidhash);
 	rw_init(&tidhash_lock, "tidhash");
 }