Collect all the functioons concerned with rebooting into one place
also add the at_shutdown callout list, and change the one user of the present (broken) method (the vn driver) to use the new scheme.
This commit is contained in:
Julian Elischer
parent
e151ec2315
commit
269fb9d764
@ -35,7 +35,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)machdep.c 7.4 (Berkeley) 6/3/91
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* $Id: machdep.c,v 1.196 1996/08/11 17:41:24 davidg Exp $
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* $Id: machdep.c,v 1.198 1996/08/12 20:03:16 wollman Exp $
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*/
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#include "npx.h"
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@ -130,10 +130,6 @@ static void cpu_startup __P((void *));
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SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_startup, NULL)
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#ifndef PANIC_REBOOT_WAIT_TIME
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#define PANIC_REBOOT_WAIT_TIME 15 /* default to 15 seconds */
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#endif
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#ifdef BOUNCE_BUFFERS
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extern char *bouncememory;
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extern int maxbkva;
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@ -184,7 +180,6 @@ vm_offset_t phys_avail[10];
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/* must be 2 less so 0 0 can signal end of chunks */
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#define PHYS_AVAIL_ARRAY_END ((sizeof(phys_avail) / sizeof(vm_offset_t)) - 2)
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static void dumpsys __P((void));
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static void setup_netisrs __P((struct linker_set *)); /* XXX declare elsewhere */
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static vm_offset_t buffer_sva, buffer_eva;
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@ -682,164 +677,15 @@ sigreturn(p, uap, retval)
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return(EJUSTRETURN);
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}
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static int waittime = -1;
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static struct pcb dumppcb;
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__dead void
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boot(howto)
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int howto;
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{
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if (!cold && (howto & RB_NOSYNC) == 0 && waittime < 0) {
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register struct buf *bp;
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int iter, nbusy;
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waittime = 0;
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printf("\nsyncing disks... ");
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sync(&proc0, NULL, NULL);
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for (iter = 0; iter < 20; iter++) {
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nbusy = 0;
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for (bp = &buf[nbuf]; --bp >= buf; ) {
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if ((bp->b_flags & (B_BUSY | B_INVAL)) == B_BUSY) {
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nbusy++;
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}
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}
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if (nbusy == 0)
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break;
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printf("%d ", nbusy);
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DELAY(40000 * iter);
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}
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if (nbusy) {
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/*
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* Failed to sync all blocks. Indicate this and don't
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* unmount filesystems (thus forcing an fsck on reboot).
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*/
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printf("giving up\n");
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#ifdef SHOW_BUSYBUFS
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nbusy = 0;
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for (bp = &buf[nbuf]; --bp >= buf; ) {
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if ((bp->b_flags & (B_BUSY | B_INVAL)) == B_BUSY) {
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nbusy++;
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printf("%d: dev:%08x, flags:%08x, blkno:%d, lblkno:%d\n", nbusy, bp->b_dev, bp->b_flags, bp->b_blkno, bp->b_lblkno);
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}
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}
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DELAY(5000000); /* 5 seconds */
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#endif
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} else {
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printf("done\n");
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/*
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* Unmount filesystems
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*/
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if (panicstr == 0)
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vfs_unmountall();
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}
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DELAY(100000); /* wait for console output to finish */
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dev_shutdownall(FALSE);
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}
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splhigh();
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if (howto & RB_HALT) {
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printf("\n");
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printf("The operating system has halted.\n");
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printf("Please press any key to reboot.\n\n");
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cngetc();
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} else {
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if (howto & RB_DUMP) {
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if (!cold) {
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savectx(&dumppcb);
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dumppcb.pcb_cr3 = rcr3();
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dumpsys();
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}
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if (PANIC_REBOOT_WAIT_TIME != 0) {
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if (PANIC_REBOOT_WAIT_TIME != -1) {
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int loop;
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printf("Automatic reboot in %d seconds - press a key on the console to abort\n",
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PANIC_REBOOT_WAIT_TIME);
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for (loop = PANIC_REBOOT_WAIT_TIME * 10; loop > 0; --loop) {
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DELAY(1000 * 100); /* 1/10th second */
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if (cncheckc()) /* Did user type a key? */
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break;
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}
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if (!loop)
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goto die;
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}
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} else { /* zero time specified - reboot NOW */
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goto die;
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}
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printf("--> Press a key on the console to reboot <--\n");
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cngetc();
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}
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}
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die:
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printf("Rebooting...\n");
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DELAY(1000000); /* wait 1 sec for printf's to complete and be read */
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cpu_reset();
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for(;;) ;
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/* NOTREACHED */
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}
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/*
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* Magic number for savecore
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*
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* exported (symorder) and used at least by savecore(8)
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* Machine depdnetnt boot() routine
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*
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* I haven't seen anything too put here yet
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* Possibly some stuff might be grafted back here from boot()
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*/
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static u_long const dumpmag = 0x8fca0101UL;
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static int dumpsize = 0; /* also for savecore */
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static int dodump = 1;
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SYSCTL_INT(_machdep, OID_AUTO, do_dump, CTLFLAG_RW, &dodump, 0, "");
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/*
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* Doadump comes here after turning off memory management and
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* getting on the dump stack, either when called above, or by
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* the auto-restart code.
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*/
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static void
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dumpsys()
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void
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cpu_boot(int howto)
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{
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if (!dodump)
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return;
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if (dumpdev == NODEV)
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return;
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if ((minor(dumpdev)&07) != 1)
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return;
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if (!(bdevsw[major(dumpdev)]))
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return;
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if (!(bdevsw[major(dumpdev)]->d_dump))
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return;
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dumpsize = Maxmem;
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printf("\ndumping to dev %lx, offset %ld\n", dumpdev, dumplo);
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printf("dump ");
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switch ((*bdevsw[major(dumpdev)]->d_dump)(dumpdev)) {
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case ENXIO:
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printf("device bad\n");
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break;
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case EFAULT:
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printf("device not ready\n");
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break;
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case EINVAL:
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printf("area improper\n");
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break;
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case EIO:
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printf("i/o error\n");
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break;
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case EINTR:
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printf("aborted from console\n");
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break;
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default:
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printf("succeeded\n");
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break;
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}
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}
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/*
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@ -38,7 +38,7 @@
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* from: Utah Hdr: vn.c 1.13 94/04/02
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*
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* from: @(#)vn.c 8.6 (Berkeley) 4/1/94
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* $Id: vn.c,v 1.36 1996/03/28 15:25:43 bde Exp $
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* $Id: vn.c,v 1.37 1996/07/23 21:51:26 phk Exp $
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*/
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/*
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@ -149,7 +149,7 @@ static u_long vn_options;
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static void vniodone (struct buf *bp);
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static int vnsetcred (struct vn_softc *vn, struct ucred *cred);
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static void vnshutdown (void);
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static void vnshutdown (int ,void *);
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static void vnclear (struct vn_softc *vn);
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static int
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@ -563,7 +563,7 @@ vnsetcred(struct vn_softc *vn, struct ucred *cred)
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}
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void
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vnshutdown()
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vnshutdown(int howto, void *ignored)
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{
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int i;
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@ -572,8 +572,6 @@ vnshutdown()
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vnclear(vn_softc[i]);
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}
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TEXT_SET(cleanup_set, vnshutdown);
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void
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vnclear(struct vn_softc *vn)
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{
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@ -624,6 +622,9 @@ vn_drvinit(void *unused)
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if( ! vn_devsw_installed ) {
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bdevsw_add_generic(BDEV_MAJOR,CDEV_MAJOR, &vn_bdevsw);
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vn_devsw_installed = 1;
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if(at_shutdown(&vnshutdown,NULL) {
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printf("vn: could not install shutdown hook\n");
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}
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#ifdef DEVFS
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for (unit = 0; unit < NVN; unit++) {
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vn = vn_softc[unit];
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@ -35,7 +35,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)machdep.c 7.4 (Berkeley) 6/3/91
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* $Id: machdep.c,v 1.196 1996/08/11 17:41:24 davidg Exp $
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* $Id: machdep.c,v 1.198 1996/08/12 20:03:16 wollman Exp $
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*/
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#include "npx.h"
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@ -130,10 +130,6 @@ static void cpu_startup __P((void *));
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SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_startup, NULL)
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#ifndef PANIC_REBOOT_WAIT_TIME
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#define PANIC_REBOOT_WAIT_TIME 15 /* default to 15 seconds */
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#endif
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#ifdef BOUNCE_BUFFERS
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extern char *bouncememory;
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extern int maxbkva;
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@ -184,7 +180,6 @@ vm_offset_t phys_avail[10];
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/* must be 2 less so 0 0 can signal end of chunks */
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#define PHYS_AVAIL_ARRAY_END ((sizeof(phys_avail) / sizeof(vm_offset_t)) - 2)
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static void dumpsys __P((void));
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static void setup_netisrs __P((struct linker_set *)); /* XXX declare elsewhere */
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static vm_offset_t buffer_sva, buffer_eva;
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@ -682,164 +677,15 @@ sigreturn(p, uap, retval)
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return(EJUSTRETURN);
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}
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static int waittime = -1;
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static struct pcb dumppcb;
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__dead void
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boot(howto)
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int howto;
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{
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if (!cold && (howto & RB_NOSYNC) == 0 && waittime < 0) {
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register struct buf *bp;
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int iter, nbusy;
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waittime = 0;
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printf("\nsyncing disks... ");
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sync(&proc0, NULL, NULL);
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for (iter = 0; iter < 20; iter++) {
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nbusy = 0;
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for (bp = &buf[nbuf]; --bp >= buf; ) {
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if ((bp->b_flags & (B_BUSY | B_INVAL)) == B_BUSY) {
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nbusy++;
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}
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}
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if (nbusy == 0)
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break;
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printf("%d ", nbusy);
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DELAY(40000 * iter);
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}
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if (nbusy) {
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/*
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* Failed to sync all blocks. Indicate this and don't
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* unmount filesystems (thus forcing an fsck on reboot).
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*/
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printf("giving up\n");
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#ifdef SHOW_BUSYBUFS
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nbusy = 0;
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for (bp = &buf[nbuf]; --bp >= buf; ) {
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if ((bp->b_flags & (B_BUSY | B_INVAL)) == B_BUSY) {
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nbusy++;
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printf("%d: dev:%08x, flags:%08x, blkno:%d, lblkno:%d\n", nbusy, bp->b_dev, bp->b_flags, bp->b_blkno, bp->b_lblkno);
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}
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}
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DELAY(5000000); /* 5 seconds */
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#endif
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} else {
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printf("done\n");
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/*
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* Unmount filesystems
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*/
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if (panicstr == 0)
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vfs_unmountall();
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}
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DELAY(100000); /* wait for console output to finish */
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dev_shutdownall(FALSE);
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}
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splhigh();
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if (howto & RB_HALT) {
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printf("\n");
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printf("The operating system has halted.\n");
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printf("Please press any key to reboot.\n\n");
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cngetc();
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} else {
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if (howto & RB_DUMP) {
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if (!cold) {
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savectx(&dumppcb);
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dumppcb.pcb_cr3 = rcr3();
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dumpsys();
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}
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if (PANIC_REBOOT_WAIT_TIME != 0) {
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if (PANIC_REBOOT_WAIT_TIME != -1) {
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int loop;
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printf("Automatic reboot in %d seconds - press a key on the console to abort\n",
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PANIC_REBOOT_WAIT_TIME);
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for (loop = PANIC_REBOOT_WAIT_TIME * 10; loop > 0; --loop) {
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DELAY(1000 * 100); /* 1/10th second */
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if (cncheckc()) /* Did user type a key? */
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break;
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}
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if (!loop)
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goto die;
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}
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} else { /* zero time specified - reboot NOW */
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goto die;
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}
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printf("--> Press a key on the console to reboot <--\n");
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cngetc();
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}
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}
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die:
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printf("Rebooting...\n");
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DELAY(1000000); /* wait 1 sec for printf's to complete and be read */
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cpu_reset();
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for(;;) ;
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/* NOTREACHED */
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}
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/*
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* Magic number for savecore
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*
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* exported (symorder) and used at least by savecore(8)
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* Machine depdnetnt boot() routine
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*
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* I haven't seen anything too put here yet
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* Possibly some stuff might be grafted back here from boot()
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*/
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static u_long const dumpmag = 0x8fca0101UL;
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static int dumpsize = 0; /* also for savecore */
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static int dodump = 1;
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SYSCTL_INT(_machdep, OID_AUTO, do_dump, CTLFLAG_RW, &dodump, 0, "");
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/*
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* Doadump comes here after turning off memory management and
|
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* getting on the dump stack, either when called above, or by
|
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* the auto-restart code.
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*/
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static void
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dumpsys()
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void
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cpu_boot(int howto)
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{
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if (!dodump)
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return;
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if (dumpdev == NODEV)
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return;
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if ((minor(dumpdev)&07) != 1)
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return;
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if (!(bdevsw[major(dumpdev)]))
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return;
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if (!(bdevsw[major(dumpdev)]->d_dump))
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return;
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dumpsize = Maxmem;
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printf("\ndumping to dev %lx, offset %ld\n", dumpdev, dumplo);
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printf("dump ");
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switch ((*bdevsw[major(dumpdev)]->d_dump)(dumpdev)) {
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case ENXIO:
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printf("device bad\n");
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break;
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case EFAULT:
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printf("device not ready\n");
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break;
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case EINVAL:
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printf("area improper\n");
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break;
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case EIO:
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printf("i/o error\n");
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break;
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case EINTR:
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printf("aborted from console\n");
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break;
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default:
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printf("succeeded\n");
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break;
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}
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}
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/*
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@ -36,7 +36,7 @@
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* SUCH DAMAGE.
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*
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* @(#)kern_shutdown.c 8.3 (Berkeley) 1/21/94
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* $Id: subr_prf.c,v 1.37 1996/05/09 18:58:06 gpalmer Exp $
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* $Id: kern_shutdown.c,v 1.1 1996/08/19 02:19:21 julian Exp $
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*/
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#include "opt_ddb.h"
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@ -276,6 +276,7 @@ boot(howto)
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die:
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printf("Rebooting...\n");
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DELAY(1000000); /* wait 1 sec for printf's to complete and be read */
|
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/* cpu_boot(howto); */ /* doesn't do anything at the moment */
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cpu_reset();
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for(;;) ;
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/* NOTREACHED */
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
|
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*
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* @(#)kern_xxx.c 8.2 (Berkeley) 11/14/93
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* $Id: kern_xxx.c,v 1.21 1995/12/02 18:58:50 bde Exp $
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* $Id: kern_xxx.c,v 1.22 1995/12/06 23:37:12 bde Exp $
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*/
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#include <sys/param.h>
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@ -39,49 +39,9 @@
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#include <sys/sysproto.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/reboot.h>
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#include <sys/sysctl.h>
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#include <sys/utsname.h>
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#include <sys/signalvar.h>
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/* This implements a "TEXT_SET" for cleanup functions */
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static void dummy_cleanup __P((void));
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static void
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dummy_cleanup() {}
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TEXT_SET(cleanup_set, dummy_cleanup);
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|
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typedef void (*cleanup_func_t)(void);
|
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extern const struct linker_set cleanup_set;
|
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static const cleanup_func_t *cleanups =
|
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(const cleanup_func_t *)&cleanup_set.ls_items[0];
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|
||||
#ifndef _SYS_SYSPROTO_H_
|
||||
struct reboot_args {
|
||||
int opt;
|
||||
};
|
||||
#endif
|
||||
/* ARGSUSED */
|
||||
int
|
||||
reboot(p, uap, retval)
|
||||
struct proc *p;
|
||||
struct reboot_args *uap;
|
||||
int *retval;
|
||||
{
|
||||
int error;
|
||||
|
||||
if ((error = suser(p->p_ucred, &p->p_acflag)))
|
||||
return (error);
|
||||
|
||||
if (!uap->opt & RB_NOSYNC) {
|
||||
printf("\ncleaning up... ");
|
||||
while(*cleanups) {
|
||||
(**cleanups++)();
|
||||
}
|
||||
}
|
||||
|
||||
boot(uap->opt);
|
||||
return (0);
|
||||
}
|
||||
|
||||
#if defined(COMPAT_43) || defined(COMPAT_SUNOS)
|
||||
|
||||
@ -180,20 +140,6 @@ oquota(p, uap, retval)
|
||||
}
|
||||
#endif /* COMPAT_43 */
|
||||
|
||||
void
|
||||
shutdown_nice(void)
|
||||
{
|
||||
/* Send a signal to init(8) and have it shutdown the world */
|
||||
if (initproc != NULL) {
|
||||
psignal(initproc, SIGINT);
|
||||
} else {
|
||||
/* No init(8) running, so simply reboot */
|
||||
boot(RB_NOSYNC);
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
#ifndef _SYS_SYSPROTO_H_
|
||||
struct uname_args {
|
||||
struct utsname *name;
|
||||
|
||||
@ -36,23 +36,19 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)subr_prf.c 8.3 (Berkeley) 1/21/94
|
||||
* $Id: subr_prf.c,v 1.36 1996/05/08 04:28:51 gpalmer Exp $
|
||||
* $Id: subr_prf.c,v 1.37 1996/05/09 18:58:06 gpalmer Exp $
|
||||
*/
|
||||
|
||||
#include "opt_ddb.h"
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/reboot.h>
|
||||
#include <sys/msgbuf.h>
|
||||
#include <sys/proc.h>
|
||||
#include <sys/vnode.h>
|
||||
#include <sys/tty.h>
|
||||
#include <sys/tprintf.h>
|
||||
#include <sys/syslog.h>
|
||||
#include <sys/malloc.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/sysctl.h>
|
||||
#include <machine/cons.h>
|
||||
|
||||
/*
|
||||
@ -61,17 +57,6 @@
|
||||
*/
|
||||
#include <machine/stdarg.h>
|
||||
|
||||
#if defined(DDB)
|
||||
#ifdef DDB_UNATTENDED
|
||||
static int debugger_on_panic = 0;
|
||||
#else
|
||||
static int debugger_on_panic = 1;
|
||||
#endif
|
||||
|
||||
SYSCTL_INT(_debug, OID_AUTO, debugger_on_panic, CTLFLAG_RW,
|
||||
&debugger_on_panic, 0, "");
|
||||
#endif
|
||||
|
||||
#define TOCONS 0x01
|
||||
#define TOTTY 0x02
|
||||
#define TOLOG 0x04
|
||||
@ -79,7 +64,6 @@ SYSCTL_INT(_debug, OID_AUTO, debugger_on_panic, CTLFLAG_RW,
|
||||
struct tty *constty; /* pointer to console "window" tty */
|
||||
|
||||
static void (*v_putc)(int) = cnputc; /* routine to putc on virtual console */
|
||||
|
||||
static void logpri __P((int level));
|
||||
static void msglogchar(int c, void *dummyarg);
|
||||
struct putchar_arg {int flags; struct tty *tty; };
|
||||
@ -88,45 +72,6 @@ static char *ksprintn __P((u_long num, int base, int *len));
|
||||
|
||||
static int consintr = 1; /* Ok to handle console interrupts? */
|
||||
|
||||
/*
|
||||
* Variable panicstr contains argument to first call to panic; used as flag
|
||||
* to indicate that the kernel has already called panic.
|
||||
*/
|
||||
const char *panicstr;
|
||||
|
||||
/*
|
||||
* Panic is called on unresolvable fatal errors. It prints "panic: mesg",
|
||||
* and then reboots. If we are called twice, then we avoid trying to sync
|
||||
* the disks as this often leads to recursive panics.
|
||||
*/
|
||||
#ifdef __GNUC__
|
||||
__dead /* panic() does not return */
|
||||
#endif
|
||||
void
|
||||
panic(const char *fmt, ...)
|
||||
{
|
||||
int bootopt;
|
||||
va_list ap;
|
||||
|
||||
bootopt = RB_AUTOBOOT | RB_DUMP;
|
||||
if (panicstr)
|
||||
bootopt |= RB_NOSYNC;
|
||||
else
|
||||
panicstr = fmt;
|
||||
|
||||
printf("panic: ");
|
||||
va_start(ap, fmt);
|
||||
vprintf(fmt, ap);
|
||||
va_end(ap);
|
||||
printf("\n");
|
||||
|
||||
#if defined(DDB)
|
||||
if (debugger_on_panic)
|
||||
Debugger ("panic");
|
||||
#endif
|
||||
boot(bootopt);
|
||||
}
|
||||
|
||||
/*
|
||||
* Warn that a system table is full.
|
||||
*/
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user