xnu-3247.1.106.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 4e231826d10c3f69483503ff52206ed97c2332af..3858ce83e10ed21b146a0a5f050d8a50e7ad697b 100644 (file)
--- a/bsd/kern/kern_shutdown.c
+++ b/bsd/kern/kern_shutdown.c
@@ -74,7 +74,6 @@
 uint32_t system_inshutdown = 0;
 
 /* XXX should be in a header file somewhere, but isn't */
-extern void md_prepare_for_shutdown(int, int, char *);
 extern void (*unmountroot_pre_hook)(void);
 
 unsigned int proc_shutdown_exitcount = 0;
@@ -83,7 +82,7 @@ static int  sd_openlog(vfs_context_t);
 static int  sd_closelog(vfs_context_t);
 static void sd_log(vfs_context_t, const char *, ...);
 static void proc_shutdown(void);
-
+static void kernel_hwm_panic_info(void);
 extern void IOSystemShutdownNotification(void);
 
 struct sd_filterargs{
@@ -109,10 +108,37 @@ static int  sd_callback1(proc_t p, void * arg);
 static int  sd_callback2(proc_t p, void * arg);
 static int  sd_callback3(proc_t p, void * arg);
 
+extern boolean_t panic_include_zprint;
+extern vm_offset_t panic_kext_memory_info;
+extern vm_size_t panic_kext_memory_size; 
+
+static void
+kernel_hwm_panic_info(void)
+{
+       mach_memory_info_t      *memory_info;
+       unsigned int            num_sites;
+       kern_return_t           kr;
+
+       panic_include_zprint = TRUE;
+       panic_kext_memory_info = 0;
+       panic_kext_memory_size = 0;
+
+       num_sites = VM_KERN_MEMORY_COUNT + VM_KERN_COUNTER_COUNT;
+       panic_kext_memory_size = round_page(num_sites * sizeof(mach_zone_info_t));
+       
+       kr = kmem_alloc(kernel_map, (vm_offset_t *) &panic_kext_memory_info, panic_kext_memory_size, VM_KERN_MEMORY_OSFMK);
+       if (kr != KERN_SUCCESS) {
+               panic_kext_memory_info = 0;
+               return;
+       }
+       memory_info = (mach_memory_info_t *)panic_kext_memory_info;
+       vm_page_diagnose(memory_info, num_sites);
+       return;
+}
+
 int
-boot(int paniced, int howto, char *command)
+reboot_kernel(int howto, char *message)
 {
-       struct proc *p = current_proc();        /* XXX */
        int hostboot_option=0;
 
        if (!OSCompareAndSwap(0, 1, &system_inshutdown)) {
@@ -126,12 +152,10 @@ boot(int paniced, int howto, char *command)
         */
        IOSystemShutdownNotification();
 
-       md_prepare_for_shutdown(paniced, howto, command);
-
        if ((howto&RB_QUICK)==RB_QUICK) {
                printf("Quick reboot...\n");
                if ((howto&RB_NOSYNC)==0) {
-                       sync(p, (void *)NULL, (int *)NULL);
+                       sync((proc_t)NULL, (void *)NULL, (int *)NULL);
                }
        }
        else if ((howto&RB_NOSYNC)==0) {
@@ -143,7 +167,7 @@ boot(int paniced, int howto, char *command)
                 * Release vnodes held by texts before sync.
                 */
 
-               /* handle live procs (deallocate their root and current directories). */                
+               /* handle live procs (deallocate their root and current directories), suspend initproc */
                proc_shutdown();
 
 #if CONFIG_AUDIT
@@ -153,15 +177,7 @@ boot(int paniced, int howto, char *command)
                if (unmountroot_pre_hook != NULL)
                        unmountroot_pre_hook();
 
-               sync(p, (void *)NULL, (int *)NULL);
-
-               /*
-                * Now that all processes have been terminated and system is
-                * sync'ed up, suspend init
-                */
-                       
-               if (initproc && p != initproc)
-                       task_suspend(initproc->task);
+               sync((proc_t)NULL, (void *)NULL, (int *)NULL);
 
                if (kdebug_enable)
                        kdbg_dump_trace_to_file("/var/log/shutdown/shutdown.trace");
@@ -194,12 +210,18 @@ boot(int paniced, int howto, char *command)
 #endif /* NETWORKING */
 
 force_reboot:
+
+       if (howto & RB_PANIC) {
+               if (strncmp(message, "Kernel memory has exceeded limits", 33) == 0) {
+                       kernel_hwm_panic_info();
+               }
+               panic ("userspace panic: %s", message);
+       }
+
        if (howto & RB_POWERDOWN)
                hostboot_option = HOST_REBOOT_HALT;
        if (howto & RB_HALT)
                hostboot_option = HOST_REBOOT_HALT;
-       if (paniced == RB_PANIC)
-               hostboot_option = HOST_REBOOT_HALT;
 
        if (howto & RB_UPSDELAY) {
                hostboot_option = HOST_REBOOT_UPSDELAY;
@@ -568,6 +590,11 @@ sigterm_loop:
 
        sd_closelog(ctx);
 
+       /*
+        * Now that all other processes have been terminated, suspend init
+        */
+       task_suspend_internal(initproc->task);
+
        /* drop the ref on initproc */
        proc_rele(initproc);
        printf("continuing\n");