* Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* 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
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* 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,
* 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_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
#include <security/audit/audit.h>
-#include <kern/sched_prim.h> /* for thread_block() */
-#include <kern/host.h> /* for host_priv_self() */
-#include <net/if_var.h> /* for if_down_all() */
-#include <sys/buf_internal.h> /* for count_busy_buffers() */
-#include <sys/mount_internal.h> /* for vfs_unmountall() */
-#include <mach/task.h> /* for task_suspend() */
-#include <sys/sysproto.h> /* abused for sync() */
-#include <kern/clock.h> /* for delay_for_interval() */
+#include <kern/sched_prim.h> /* for thread_block() */
+#include <kern/host.h> /* for host_priv_self() */
+#include <net/if_var.h> /* for if_down_all() */
+#include <sys/buf_internal.h> /* for count_busy_buffers() */
+#include <sys/mount_internal.h> /* for vfs_unmountall() */
+#include <mach/task.h> /* for task_suspend() */
+#include <sys/sysproto.h> /* abused for sync() */
+#include <kern/clock.h> /* for delay_for_interval() */
#include <libkern/OSAtomic.h>
#include <IOKit/IOPlatformExpert.h>
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);
+static void zprint_panic_info(void);
extern void halt_log_enter(const char * what, const void * pc, uint64_t time);
#if DEVELOPMENT || DEBUG
extern boolean_t kdp_has_polled_corefile(void);
#endif /* DEVELOPMENT || DEBUG */
-struct sd_filterargs{
+struct sd_filterargs {
int delayterm;
int shutdownstate;
};
struct sd_iterargs {
- int signo; /* the signal to be posted */
- int setsdstate; /* shutdown state to be set */
- int countproc; /* count processes on action */
- int activecount; /* number of processes on which action was done */
+ int signo; /* the signal to be posted */
+ int setsdstate; /* shutdown state to be set */
+ int countproc; /* count processes on action */
+ int activecount; /* number of processes on which action was done */
};
static vnode_t sd_logvp = NULLVP;
extern vm_size_t panic_kext_memory_size;
static void
-kernel_hwm_panic_info(void)
+zprint_panic_info(void)
{
unsigned int num_sites;
kern_return_t kr;
int
get_system_inshutdown()
{
- return (system_inshutdown);
+ return system_inshutdown;
+}
+
+__abortlike
+static void
+panic_kernel(int howto, char *message)
+{
+ if ((howto & RB_PANIC_ZPRINT) == RB_PANIC_ZPRINT) {
+ zprint_panic_info();
+ }
+ panic("userspace panic: %s", message);
}
+extern boolean_t compressor_store_stop_compaction;
+extern lck_mtx_t vm_swap_data_lock;
+extern int vm_swapfile_create_thread_running;
+extern int vm_swapfile_gc_thread_running;
+
int
reboot_kernel(int howto, char *message)
{
- int hostboot_option=0;
+ int hostboot_option = 0;
uint64_t startTime;
+ if ((howto & (RB_PANIC | RB_QUICK)) == (RB_PANIC | RB_QUICK)) {
+ panic_kernel(howto, message);
+ }
+
if (!OSCompareAndSwap(0, 1, &system_inshutdown)) {
- if ( (howto&RB_QUICK) == RB_QUICK)
+ if ((howto & RB_QUICK) == RB_QUICK) {
goto force_reboot;
- return (EBUSY);
+ }
+ return EBUSY;
+ }
+
+ lck_mtx_lock(&vm_swap_data_lock);
+
+ /* Turn OFF future swapfile reclaimation / compaction etc.*/
+ compressor_store_stop_compaction = TRUE;
+
+ /* wait for any current swapfile work to end */
+ while (vm_swapfile_create_thread_running || vm_swapfile_gc_thread_running) {
+ assert_wait((event_t)&compressor_store_stop_compaction, THREAD_UNINT);
+
+ lck_mtx_unlock(&vm_swap_data_lock);
+
+ thread_block(THREAD_CONTINUE_NULL);
+
+ lck_mtx_lock(&vm_swap_data_lock);
}
+
+ lck_mtx_unlock(&vm_swap_data_lock);
+
/*
* Notify the power management root domain that the system will shut down.
*/
IOSystemShutdownNotification(kIOSystemShutdownNotificationStageProcessExit);
- if ((howto&RB_QUICK)==RB_QUICK) {
+ if ((howto & RB_QUICK) == RB_QUICK) {
printf("Quick reboot...\n");
- if ((howto&RB_NOSYNC)==0) {
+ if ((howto & RB_NOSYNC) == 0) {
sync((proc_t)NULL, (void *)NULL, (int *)NULL);
}
- }
- else if ((howto&RB_NOSYNC)==0) {
+ } else if ((howto & RB_NOSYNC) == 0) {
int iter, nbusy;
printf("syncing disks... ");
halt_log_enter("audit_shutdown", 0, mach_absolute_time() - startTime);
#endif
- if (unmountroot_pre_hook != NULL)
+ if (unmountroot_pre_hook != NULL) {
unmountroot_pre_hook();
+ }
startTime = mach_absolute_time();
sync((proc_t)NULL, (void *)NULL, (int *)NULL);
startTime = mach_absolute_time();
for (iter = 0; iter < 100; iter++) {
nbusy = count_busy_buffers();
- if (nbusy == 0)
+ if (nbusy == 0) {
break;
+ }
printf("%d ", nbusy);
delay_for_interval( 1 * nbusy, 1000 * 1000);
}
- if (nbusy)
+ if (nbusy) {
printf("giving up\n");
- else
+ } else {
printf("done\n");
+ }
halt_log_enter("bufferclean", 0, mach_absolute_time() - startTime);
}
#if 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);
+ panic_kernel(howto, message);
}
- if (howto & RB_POWERDOWN)
- hostboot_option = HOST_REBOOT_HALT;
- if (howto & RB_HALT)
+ if (howto & RB_HALT) {
hostboot_option = HOST_REBOOT_HALT;
+ }
if (howto & RB_UPSDELAY) {
hostboot_option = HOST_REBOOT_UPSDELAY;
/*
* should not be reached
*/
- return (0);
+ return 0;
}
static int
{
int error = 0;
struct timeval tv;
-
+
/* Open shutdown log */
if ((error = vnode_open(PROC_SHUTDOWN_LOG, (O_CREAT | FWRITE | O_NOFOLLOW), 0644, 0, &sd_logvp, ctx))) {
printf("Failed to open %s: error %d\n", PROC_SHUTDOWN_LOG, error);
}
static void
-sd_log(vfs_context_t ctx, const char *fmt, ...)
+sd_log(vfs_context_t ctx, const char *fmt, ...)
{
int resid, log_error, len;
char logbuf[100];
va_start(arglist, fmt);
len = vsnprintf(logbuf, sizeof(logbuf), fmt, arglist);
log_error = vn_rdwr(UIO_WRITE, sd_logvp, (caddr_t)logbuf, len, sd_log_offset,
- UIO_SYSSPACE, IO_UNIT | IO_NOAUTH, vfs_context_ucred(ctx), &resid, vfs_context_proc(ctx));
+ UIO_SYSSPACE, IO_UNIT | IO_NOAUTH, vfs_context_ucred(ctx), &resid, vfs_context_proc(ctx));
if (log_error == EIO || log_error == 0) {
sd_log_offset += (len - resid);
}
va_end(arglist);
-
}
static int
{
proc_t self = current_proc();
struct sd_filterargs * sf = (struct sd_filterargs *)args;
- int delayterm = sf-> delayterm;
+ int delayterm = sf->delayterm;
int shutdownstate = sf->shutdownstate;
- if (((p->p_flag&P_SYSTEM) != 0) || (p->p_ppid == 0)
- ||(p == self) || (p->p_stat == SZOMB)
- || (p->p_shutdownstate != shutdownstate)
- ||((delayterm == 0) && ((p->p_lflag& P_LDELAYTERM) == P_LDELAYTERM))
- || ((p->p_sigcatch & sigmask(SIGTERM))== 0)) {
- return(0);
- }
- else
- return(1);
+ if (((p->p_flag & P_SYSTEM) != 0) || (p->p_ppid == 0)
+ || (p == self) || (p->p_stat == SZOMB)
+ || (p->p_shutdownstate != shutdownstate)
+ || ((delayterm == 0) && ((p->p_lflag & P_LDELAYTERM) == P_LDELAYTERM))
+ || ((p->p_sigcatch & sigmask(SIGTERM)) == 0)) {
+ return 0;
+ } else {
+ return 1;
+ }
}
}
psignal(p, signo);
- if (countproc != 0)
+ if (countproc != 0) {
sd->activecount++;
+ }
} else {
proc_unlock(p);
}
{
proc_t self = current_proc();
struct sd_filterargs * sf = (struct sd_filterargs *)args;
- int delayterm = sf-> delayterm;
+ int delayterm = sf->delayterm;
int shutdownstate = sf->shutdownstate;
- if (((p->p_flag&P_SYSTEM) != 0) || (p->p_ppid == 0)
- ||(p == self) || (p->p_stat == SZOMB)
- || (p->p_shutdownstate == shutdownstate)
- ||((delayterm == 0) && ((p->p_lflag& P_LDELAYTERM) == P_LDELAYTERM))) {
- return(0);
- }
- else
- return(1);
+ if (((p->p_flag & P_SYSTEM) != 0) || (p->p_ppid == 0)
+ || (p == self) || (p->p_stat == SZOMB)
+ || (p->p_shutdownstate == shutdownstate)
+ || ((delayterm == 0) && ((p->p_lflag & P_LDELAYTERM) == P_LDELAYTERM))) {
+ return 0;
+ } else {
+ return 1;
+ }
}
static int
p->p_shutdownstate = setsdstate;
if (p->p_stat != SZOMB) {
proc_unlock(p);
- if (countproc != 0) {
+ if (countproc != 0) {
proc_list_lock();
p->p_listflag |= P_LIST_EXITCOUNT;
proc_shutdown_exitcount++;
proc_list_unlock();
}
psignal(p, signo);
- if (countproc != 0)
+ if (countproc != 0) {
sd->activecount++;
+ }
} else {
proc_unlock(p);
}
proc_lock(p);
p->p_shutdownstate = setsdstate;
if (p->p_stat != SZOMB) {
- /*
- * NOTE: following code ignores sig_lock and plays
- * with exit_thread correctly. This is OK unless we
- * are a multiprocessor, in which case I do not
- * understand the sig_lock. This needs to be fixed.
- * XXX
- */
- if (p->exit_thread) { /* someone already doing it */
+ /*
+ * NOTE: following code ignores sig_lock and plays
+ * with exit_thread correctly. This is OK unless we
+ * are a multiprocessor, in which case I do not
+ * understand the sig_lock. This needs to be fixed.
+ * XXX
+ */
+ if (p->exit_thread) { /* someone already doing it */
proc_unlock(p);
/* give him a chance */
thread_block(THREAD_CONTINUE_NULL);
proc_unlock(p);
KERNEL_DEBUG_CONSTANT(BSDDBG_CODE(DBG_BSD_PROC, BSD_PROC_FRCEXIT) | DBG_FUNC_NONE,
- p->p_pid, 0, 1, 0, 0);
+ p->p_pid, 0, 1, 0, 0);
sd->activecount++;
exit1(p, 1, (int *)NULL);
}
/* post a SIGTERM to all that catch SIGTERM and not marked for delay */
proc_rebootscan(sd_callback1, (void *)&sdargs, sd_filt1, (void *)&sfargs);
- if (sdargs.activecount != 0 && proc_shutdown_exitcount!= 0) {
+ if (sdargs.activecount != 0 && proc_shutdown_exitcount != 0) {
proc_list_lock();
if (proc_shutdown_exitcount != 0) {
/*
error = msleep(&proc_shutdown_exitcount, proc_list_mlock, PWAIT, "shutdownwait", &ts);
if (error != 0) {
for (p = allproc.lh_first; p; p = p->p_list.le_next) {
- if ((p->p_listflag & P_LIST_EXITCOUNT) == P_LIST_EXITCOUNT)
+ if ((p->p_listflag & P_LIST_EXITCOUNT) == P_LIST_EXITCOUNT) {
p->p_listflag &= ~P_LIST_EXITCOUNT;
+ }
}
for (p = zombproc.lh_first; p; p = p->p_list.le_next) {
- if ((p->p_listflag & P_LIST_EXITCOUNT) == P_LIST_EXITCOUNT)
+ if ((p->p_listflag & P_LIST_EXITCOUNT) == P_LIST_EXITCOUNT) {
p->p_listflag &= ~P_LIST_EXITCOUNT;
+ }
}
}
}
error = 0;
- if (sdargs.activecount != 0 && proc_shutdown_exitcount!= 0) {
+ if (sdargs.activecount != 0 && proc_shutdown_exitcount != 0) {
proc_list_lock();
if (proc_shutdown_exitcount != 0) {
/*
- * wait for up to 60 seconds to allow these procs to exit normally
- *
- * History: The delay interval was changed from 100 to 200
- * for NFS requests in particular.
- */
+ * wait for up to 60 seconds to allow these procs to exit normally
+ *
+ * History: The delay interval was changed from 100 to 200
+ * for NFS requests in particular.
+ */
ts.tv_sec = 10;
ts.tv_nsec = 0;
error = msleep(&proc_shutdown_exitcount, proc_list_mlock, PWAIT, "shutdownwait", &ts);
if (error != 0) {
for (p = allproc.lh_first; p; p = p->p_list.le_next) {
- if ((p->p_listflag & P_LIST_EXITCOUNT) == P_LIST_EXITCOUNT)
+ if ((p->p_listflag & P_LIST_EXITCOUNT) == P_LIST_EXITCOUNT) {
p->p_listflag &= ~P_LIST_EXITCOUNT;
+ }
}
for (p = zombproc.lh_first; p; p = p->p_list.le_next) {
- if ((p->p_listflag & P_LIST_EXITCOUNT) == P_LIST_EXITCOUNT)
+ if ((p->p_listflag & P_LIST_EXITCOUNT) == P_LIST_EXITCOUNT) {
p->p_listflag &= ~P_LIST_EXITCOUNT;
+ }
}
}
}
proc_rele(initproc);
printf("continuing\n");
}
-
projects / apple / xnu.git / blobdiff