-/*
- * Signal handlers for Bacula daemons
- *
- * Kern Sibbald, April 2000
- *
- * Version $Id$
- *
- * Note, we probably should do a core dump for the serious
- * signals such as SIGBUS, SIGPFE, ...
- * Also, for SIGHUP and SIGUSR1, we should re-read the
- * configuration file. However, since this is a "general"
- * routine, we leave it to the individual daemons to
- * tweek their signals after calling this routine.
- *
- */
/*
Bacula® - The Network Backup Solution
- Copyright (C) 2000-2006 Free Software Foundation Europe e.V.
+ Copyright (C) 2000-2009 Free Software Foundation Europe e.V.
The main author of Bacula is Kern Sibbald, with contributions from
many others, a complete list can be found in the file AUTHORS.
This program is Free Software; you can redistribute it and/or
- modify it under the terms of version two of the GNU General Public
- License as published by the Free Software Foundation plus additions
- that are listed in the file LICENSE.
+ modify it under the terms of version three of the GNU Affero General Public
+ License as published by the Free Software Foundation and included
+ in the file LICENSE.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
- You should have received a copy of the GNU General Public License
+ You should have received a copy of the GNU Affero General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- Bacula® is a registered trademark of John Walker.
+ Bacula® is a registered trademark of Kern Sibbald.
The licensor of Bacula is the Free Software Foundation Europe
(FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
Switzerland, email:ftf@fsfeurope.org.
*/
+/*
+ * Signal handlers for Bacula daemons
+ *
+ * Kern Sibbald, April 2000
+ *
+ * Note, we probably should do a core dump for the serious
+ * signals such as SIGBUS, SIGPFE, ...
+ * Also, for SIGHUP and SIGUSR1, we should re-read the
+ * configuration file. However, since this is a "general"
+ * routine, we leave it to the individual daemons to
+ * tweek their signals after calling this routine.
+ *
+ */
#ifndef HAVE_WIN32
#include "bacula.h"
extern char my_name[];
extern char *exepath;
extern char *exename;
+extern bool prt_kaboom;
static const char *sig_names[BA_NSIG+1];
}
}
+/* defined in jcr.c */
+extern void dbg_print_jcr(FILE *fp);
+/* defined in plugins.c */
+extern void dbg_print_plugin(FILE *fp);
+/* defined in lockmgr.c */
+extern void dbg_print_lock(FILE *fp);
+
+/*
+ * !!! WARNING !!!
+ *
+ * This function should be used ONLY after a violent signal. We walk through the
+ * JCR chain without locking, Bacula should not be running.
+ */
+static void dbg_print_bacula()
+{
+ char buf[512];
+
+ snprintf(buf, sizeof(buf), "%s/%s.%d.bactrace",
+ working_directory, my_name, (int)getpid());
+ FILE *fp = fopen(buf, "a+") ;
+ if (!fp) {
+ fp = stderr;
+ }
+
+ fprintf(stderr, "Dumping: %s\n", buf);
+
+ /* Print also B_DB and RWLOCK structure
+ * Can add more info about JCR with dbg_jcr_add_hook()
+ */
+ dbg_print_lock(fp);
+ dbg_print_jcr(fp);
+ dbg_print_plugin(fp);
+
+ if (fp != stderr) {
+#define direct_print
+#ifdef direct_print
+ if (prt_kaboom) {
+ rewind(fp);
+ printf("\n\n ==== bactrace output ====\n\n");
+ while (fgets(buf, (int)sizeof(buf), fp) != NULL) {
+ printf("%s", buf);
+ }
+ printf(" ==== End baktrace output ====\n\n");
+ }
+#else
+ if (prt_kaboom) {
+ char buf1[512];
+ printf("\n\n ==== bactrace output ====\n\n");
+ snprintf(buf1, sizeof(buf1), "/bin/cat %s", buf);
+ system(buf1);
+ printf(" ==== End baktrace output ====\n\n");
+ }
+#endif
+ fclose(fp);
+ }
+}
+
/*
* Handle signals here
*/
return;
}
already_dead++;
+ /* Don't use Emsg here as it may lock and thus block us */
if (sig == SIGTERM) {
-// Emsg1(M_TERM, -1, "Shutting down Bacula service: %s ...\n", my_name);
+ syslog(LOG_DAEMON|LOG_ERR, "Shutting down Bacula service: %s ...\n", my_name);
} else {
- Emsg2(M_FATAL, -1, _("Bacula interrupted by signal %d: %s\n"), sig, sig_names[sig]);
+ fprintf(stderr, _("Bacula interrupted by signal %d: %s\n"), sig, get_signal_name(sig));
+ syslog(LOG_DAEMON|LOG_ERR,
+ _("Bacula interrupted by signal %d: %s\n"), sig, get_signal_name(sig));
}
#ifdef TRACEBACK
if (sig != SIGTERM) {
struct sigaction sigdefault;
- static char *argv[4];
+ static char *argv[5];
static char pid_buf[20];
static char btpath[400];
- char buf[100];
+ char buf[400];
pid_t pid;
int exelen = strlen(exepath);
- fprintf(stderr, _("Kaboom! %s, %s got signal %d. Attempting traceback.\n"),
- exename, my_name, sig);
+ fprintf(stderr, _("Kaboom! %s, %s got signal %d - %s. Attempting traceback.\n"),
+ exename, my_name, sig, get_signal_name(sig));
fprintf(stderr, _("Kaboom! exepath=%s\n"), exepath);
if (exelen + 12 > (int)sizeof(btpath)) {
}
if (chdir(working_directory) != 0) { /* dump in working directory */
berrno be;
- Pmsg2(000, "chdir to %s failed. ERR=%s\n", working_directory, be.strerror());
+ Pmsg2(000, "chdir to %s failed. ERR=%s\n", working_directory, be.bstrerror());
strcpy((char *)working_directory, "/tmp/");
}
unlink("./core"); /* get rid of any old core file */
argv[0] = btpath; /* path to btraceback */
argv[1] = exepath; /* path to exe */
argv[2] = pid_buf;
- argv[3] = (char *)NULL;
- fprintf(stderr, _("Calling: %s %s %s\n"), btpath, exepath, pid_buf);
+ argv[3] = (char *)working_directory;
+ argv[4] = (char *)NULL;
+ fprintf(stderr, _("Calling: %s %s %s %s\n"), btpath, exepath, pid_buf,
+ working_directory);
if (execv(btpath, argv) != 0) {
- printf(_("execv: %s failed: ERR=%s\n"), btpath, strerror(errno));
+ berrno be;
+ printf(_("execv: %s failed: ERR=%s\n"), btpath, be.bstrerror());
}
exit(-1);
default: /* parent */
break;
}
+
/* Parent continue here, waiting for child */
sigdefault.sa_flags = 0;
sigdefault.sa_handler = SIG_DFL;
if (pid > 0) {
Dmsg0(500, "Doing waitpid\n");
waitpid(pid, NULL, 0); /* wait for child to produce dump */
- fprintf(stderr, _("Traceback complete, attempting cleanup ...\n"));
Dmsg0(500, "Done waitpid\n");
- exit_handler(sig); /* clean up if possible */
- Dmsg0(500, "Done exit_handler\n");
} else {
Dmsg0(500, "Doing sleep\n");
bmicrosleep(30, 0);
}
fprintf(stderr, _("It looks like the traceback worked ...\n"));
+ /* If we want it printed, do so */
+#ifdef direct_print
+ if (prt_kaboom) {
+ FILE *fd;
+ snprintf(buf, sizeof(buf), "%s/bacula.%s.traceback", working_directory, pid_buf);
+ fd = fopen(buf, "r");
+ if (fd != NULL) {
+ printf("\n\n ==== Traceback output ====\n\n");
+ while (fgets(buf, (int)sizeof(buf), fd) != NULL) {
+ printf("%s", buf);
+ }
+ fclose(fd);
+ printf(" ==== End traceback output ====\n\n");
+ }
+ }
+#else
+ if (prt_kaboom) {
+ snprintf(buf, sizeof(buf), "/bin/cat %s/bacula.%s.traceback", working_directory, pid_buf);
+ fprintf(stderr, "\n\n ==== Traceback output ====\n\n");
+ system(buf);
+ fprintf(stderr, " ==== End traceback output ====\n\n");
+ }
+#endif
+ /* print information about the current state into working/<file>.bactrace */
+ dbg_print_bacula();
}
#endif
-
exit_handler(sig);
+ Dmsg0(500, "Done exit_handler\n");
}
/*
sigaction(SIGQUIT, &sighandle, NULL);
sigaction(SIGILL, &sighandle, NULL);
sigaction(SIGTRAP, &sighandle, NULL);
-/* sigaction(SIGABRT, &sighandle, NULL); */
+ sigaction(SIGABRT, &sighandle, NULL);
#ifdef SIGEMT
sigaction(SIGEMT, &sighandle, NULL);
#endif
#ifdef SIGIOT
-/* sigaction(SIGIOT, &sighandle, NULL); used by debugger */
+ sigaction(SIGIOT, &sighandle, NULL);
#endif
sigaction(SIGBUS, &sighandle, NULL);
sigaction(SIGFPE, &sighandle, NULL);
- sigaction(SIGKILL, &sighandle, NULL);
+/* sigaction(SIGKILL, &sighandle, NULL); cannot be trapped */
sigaction(SIGUSR1, &sighandle, NULL);
sigaction(SIGSEGV, &sighandle, NULL);
sigaction(SIGUSR2, &sighandle, NULL);
#ifdef SIGSTKFLT
sigaction(SIGSTKFLT, &sighandle, NULL);
#endif
- sigaction(SIGSTOP, &sighandle, NULL);
+/* sigaction(SIGSTOP, &sighandle, NULL); cannot be trapped */
sigaction(SIGTSTP, &sighandle, NULL);
sigaction(SIGTTIN, &sighandle, NULL);
sigaction(SIGTTOU, &sighandle, NULL);
projects / bacula / bacula / blobdiff