xnu-517.3.15.tar.gz

[apple/xnu.git] / bsd / kern / kern_shutdown.c

diff --git a/bsd/kern/kern_shutdown.c b/bsd/kern/kern_shutdown.c
index 45697a58db7c60164b3a29d0a48055b4a0598aaa..b4d4396092eb4f4e80d56aa3476635a1ea1318b0 100644 (file)
--- a/bsd/kern/kern_shutdown.c
+++ b/bsd/kern/kern_shutdown.c
@@ -3,19 +3,22 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
@@ -56,6 +59,7 @@
 #include <mach/vm_param.h>
 #include <sys/filedesc.h>
 #include <mach/host_reboot.h>
+#include <sys/kern_audit.h>
 
 int    waittime = -1;
 
@@ -91,6 +95,8 @@ boot(paniced, howto, command)
                /* handle live procs (deallocate their root and current directories). */                
                proc_shutdown();
 
+               audit_shutdown();
+
                sync(p, (void *)NULL, (int *)NULL);
 
                /* Release vnodes from the VM object cache */    
@@ -176,10 +182,15 @@ proc_shutdown()
        /*
         * send SIGTERM to those procs interested in catching one
         */
+sigterm_loop:
        for (p = allproc.lh_first; p; p = p->p_list.le_next) {
-               if (((p->p_flag&P_SYSTEM) == 0) && (p->p_pptr->p_pid != 0) && (p != self)) {
-                       if (p->p_sigcatch & sigmask(SIGTERM))
+               if (((p->p_flag&P_SYSTEM) == 0) && (p->p_pptr->p_pid != 0) && (p != self) && (p->p_shutdownstate == 0)) {
+                       if (p->p_sigcatch & sigmask(SIGTERM)) {
+                               p->p_shutdownstate = 1;
                                psignal(p, SIGTERM);
+
+                               goto sigterm_loop;
+                       }
                }
        }
        /*
@@ -197,21 +208,34 @@ proc_shutdown()
                TERM_catch = 0;
 
                for (p = allproc.lh_first; p; p = p->p_list.le_next) {
-                       if (((p->p_flag&P_SYSTEM) == 0) && (p->p_pptr->p_pid != 0) && (p != self)) {
-                               if (p->p_sigcatch & sigmask(SIGTERM))
-                                       TERM_catch++;
-                       }
+                       if (p->p_shutdownstate == 1)
+                               TERM_catch++;
                }
                if (TERM_catch == 0)
                        break;
        }
+       if (TERM_catch) {
+               /*
+                * log the names of the unresponsive tasks
+                */
+               for (p = allproc.lh_first; p; p = p->p_list.le_next) {
+                       if (p->p_shutdownstate == 1)
+                                 printf("%s[%d]: didn't act on SIGTERM\n", p->p_comm, p->p_pid);
+               }
+               IOSleep(1000 * 5);
+       }
 
        /*
         * send a SIGKILL to all the procs still hanging around
         */
+sigkill_loop:
        for (p = allproc.lh_first; p; p = p->p_list.le_next) {
-               if (((p->p_flag&P_SYSTEM) == 0) && (p->p_pptr->p_pid != 0) && (p != self))
+               if (((p->p_flag&P_SYSTEM) == 0) && (p->p_pptr->p_pid != 0) && (p != self) && (p->p_shutdownstate != 2)) {
                        psignal(p, SIGKILL);
+                       p->p_shutdownstate = 2;
+                       
+                       goto sigkill_loop;
+               }
        }
        /*
         * wait for up to 60 seconds to allow these procs to exit normally
@@ -220,7 +244,7 @@ proc_shutdown()
                IOSleep(200);  /* double the time from 100 to 200 for NFS requests in particular */
 
                for (p = allproc.lh_first; p; p = p->p_list.le_next) {
-                       if (((p->p_flag&P_SYSTEM) == 0) && (p->p_pptr->p_pid != 0) && (p != self))
+                       if (p->p_shutdownstate == 2)
                                break;
                }
                if (!p)
@@ -248,7 +272,7 @@ proc_shutdown()
                                thread_block(THREAD_CONTINUE_NULL);
                        }
                        else {
-                               p->exit_thread = current_thread();
+                               p->exit_thread = current_act();
                                printf(".");
                                exit1(p, 1, (int *)NULL);
                        }
@@ -259,18 +283,19 @@ proc_shutdown()
        /*
         *      Forcibly free resources of what's left.
         */
+#ifdef notyet
        p = allproc.lh_first;
        while (p) {
        /*
         * Close open files and release open-file table.
         * This may block!
         */
-#ifdef notyet
+
        /* panics on reboot due to "zfree: non-allocated memory in collectable zone" message */
        fdfree(p);
-#endif /* notyet */
        p = p->p_list.le_next;
        }
+#endif /* notyet */
        /* Wait for the reaper thread to run, and clean up what we have done 
         * before we proceed with the hardcore shutdown. This reduces the race
         * between kill_tasks and the reaper thread.