sysvinit/sysvinit-2.86-fuse-no-kill.patch

--- src/killall5.c
+++ src/killall5.c
@@ -274,6 +274,7 @@
 
 /*
  *	Read the proc filesystem.
+ *	CWD must be /proc.
  */
 int readproc()
 {
@@ -289,7 +290,7 @@
 	int		pid, f;
 
 	/* Open the /proc directory. */
-	if ((dir = opendir("/proc")) == NULL) {
+	if ((dir = opendir(".")) == NULL) {
 		nsyslog(LOG_ERR, "cannot opendir(/proc)");
 		return -1;
 	}
@@ -316,10 +317,10 @@
 		memset(p, 0, sizeof(PROC));
 
 		/* Open the status file. */
-		snprintf(path, sizeof(path), "/proc/%s/stat", d->d_name);
+		snprintf(path, sizeof(path), "%s/stat", d->d_name);
 
 		/* Read SID & statname from it. */
- 		if ((fp = fopen(path, "r")) != NULL) {
+		if ((fp = fopen(path, "r")) != NULL) {
 			buf[0] = 0;
 			fgets(buf, sizeof(buf), fp);
 
@@ -333,7 +334,7 @@
 				if (q == NULL) {
 					p->sid = 0;
 					nsyslog(LOG_ERR,
-					"can't get program name from %s\n",
+					"can't get program name from /proc/%s\n",
 						path);
 					if (p->argv0) free(p->argv0);
 					if (p->argv1) free(p->argv1);
@@ -379,7 +380,7 @@
 			continue;
 		}
 
-		snprintf(path, sizeof(path), "/proc/%s/cmdline", d->d_name);
+		snprintf(path, sizeof(path), "%s/cmdline", d->d_name);
 		if ((fp = fopen(path, "r")) != NULL) {
 
 			/* Now read argv[0] */
@@ -446,6 +447,39 @@
 	return 0;
 }
 
+/*
+ *	Scan the filedescriptors of pid for /dev/fuse
+ *	CWD must be /proc.
+ */
+int is_fuse(int pid) {
+	DIR		*dir;
+	char		path[256];
+	char		buf[256];
+	struct dirent	*d;
+	ssize_t		len;
+
+	/* Open /proc/pid/fd/ */
+	snprintf(path, sizeof(path), "%d/fd", pid);
+	if ((dir = opendir(path)) != NULL) {
+		/* Walk through the directory. */
+		while ((d = readdir(dir)) != NULL) {
+			/* check for /dev/fuse */
+			snprintf(path, sizeof(path), "%d/fd/%s",
+				 pid, d->d_name);
+			if ((len = readlink(path, buf, sizeof(buf))) > 0) {
+			    if (strncmp("/dev/fuse", buf, len) == 0) {
+					/* Fuse filesystem */
+					return 1;
+				}
+			}
+		}
+		closedir(dir);
+	}
+
+	/* Not a fuse filesystem */
+	return 0;
+}
+
 PIDQ_HEAD *init_pid_q(PIDQ_HEAD *q)
 {
 	q->head =  q->next = q->tail = NULL;
@@ -749,6 +783,11 @@
 	/* Which NFS partitions are online? */
 	init_nfs();
 
+	if (chdir("/proc") == -1) {
+		nsyslog(LOG_ERR, "chdir /proc failed");
+		return(1);
+	}
+
 	/*
 	 *	Ignoring SIGKILL and SIGSTOP do not make sense, but
 	 *	someday kill(-1, sig) might kill ourself if we don't
@@ -769,11 +808,12 @@
 		exit(1);
 	}
 
-	/* Now kill all processes except our session. */
+	/* Now kill all processes except init (pid 1), our session,
+	   and FUSE filesystems. */
 	sid = (int)getsid(0);
 	pid = (int)getpid();
 	for (p = plist; p; p = p->next) {
-		if (p->pid == 1 || p->pid == pid || p->sid == sid || p->kernel) {
+		if (p->pid == 1 || p->pid == pid || p->sid == sid || p->kernel || is_fuse(p->pid)) {
 			kill(p->pid, SIGCONT);
 			continue;
 		}