* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see [sun.com URL with a
- * copy of GPLv2].
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*/
/*
# define DEBUG_SUBSYSTEM S_LNET
-#include <stdarg.h>
#include <libcfs/libcfs.h>
#include "tracefile.h"
static char debug_file_name[1024];
-#ifdef __KERNEL__
unsigned int libcfs_subsystem_debug = ~0;
CFS_MODULE_PARM(libcfs_subsystem_debug, "i", int, 0644,
"Lustre kernel debug subsystem mask");
"Lustre kernel debug mask");
EXPORT_SYMBOL(libcfs_debug);
-int libcfs_debug_mb = -1;
-CFS_MODULE_PARM(libcfs_debug_mb, "i", int, 0644,
+unsigned int libcfs_debug_mb = 0;
+CFS_MODULE_PARM(libcfs_debug_mb, "i", uint, 0644,
"Total debug buffer size.");
EXPORT_SYMBOL(libcfs_debug_mb);
unsigned int libcfs_catastrophe;
EXPORT_SYMBOL(libcfs_catastrophe);
-unsigned int libcfs_panic_on_lbug = 0;
+unsigned int libcfs_watchdog_ratelimit = 300;
+EXPORT_SYMBOL(libcfs_watchdog_ratelimit);
+
+unsigned int libcfs_panic_on_lbug = 1;
CFS_MODULE_PARM(libcfs_panic_on_lbug, "i", uint, 0644,
"Lustre kernel panic on LBUG");
EXPORT_SYMBOL(libcfs_panic_on_lbug);
-atomic_t libcfs_kmemory = ATOMIC_INIT(0);
+cfs_atomic_t libcfs_kmemory = CFS_ATOMIC_INIT(0);
EXPORT_SYMBOL(libcfs_kmemory);
static cfs_waitq_t debug_ctlwq;
-#ifdef __arch_um__
-char debug_file_path[1024] = "/r/tmp/lustre-log";
-#else
-char debug_file_path[1024] = "/tmp/lustre-log";
-#endif
-char *debug_file_path_p = &debug_file_path[0];
+char libcfs_debug_file_path_arr[PATH_MAX] = LIBCFS_DEBUG_FILE_PATH_DEFAULT;
-CFS_MODULE_PARM(debug_file_path_p, "s", charp, 0644,
+/* We need to pass a pointer here, but elsewhere this must be a const */
+char *libcfs_debug_file_path;
+CFS_MODULE_PARM(libcfs_debug_file_path, "s", charp, 0644,
"Path for dumping debug logs, "
"set 'NONE' to prevent log dumping");
const char *
libcfs_debug_subsys2str(int subsys)
{
- switch (subsys) {
+ switch (1 << subsys) {
default:
return NULL;
case S_UNDEFINED:
return "ldlm";
case S_LOV:
return "lov";
+ case S_LQUOTA:
+ return "lquota";
case S_LMV:
return "lmv";
case S_SEC:
const char *
libcfs_debug_dbg2str(int debug)
{
- switch (debug) {
+ switch (1 << debug) {
default:
return NULL;
case D_TRACE:
libcfs_debug_dbg2str;
int len = 0;
const char *token;
- int bit;
int i;
if (mask == 0) { /* "0" */
len = 1;
} else { /* space-separated tokens */
for (i = 0; i < 32; i++) {
- bit = 1 << i;
-
- if ((mask & bit) == 0)
+ if ((mask & (1 << i)) == 0)
continue;
- token = fn(bit);
+ token = fn(i);
if (token == NULL) /* unused bit */
continue;
}
int
-libcfs_debug_token2mask(int *mask, const char *str, int len, int is_subsys)
+libcfs_debug_str2mask(int *mask, const char *str, int is_subsys)
{
const char *(*fn)(int bit) = is_subsys ? libcfs_debug_subsys2str :
libcfs_debug_dbg2str;
- int i;
- int j;
- int bit;
- const char *token;
-
- /* match against known tokens */
- for (i = 0; i < 32; i++) {
- bit = 1 << i;
-
- token = fn(bit);
- if (token == NULL) /* unused? */
- continue;
-
- /* strcasecmp */
- for (j = 0; ; j++) {
- if (j == len) { /* end of token */
- if (token[j] == 0) {
- *mask = bit;
- return 0;
- }
- break;
- }
-
- if (token[j] == 0)
- break;
-
- if (str[j] == token[j])
- continue;
-
- if (str[j] < 'A' || 'Z' < str[j])
- break;
-
- if (str[j] - 'A' + 'a' != token[j])
- break;
- }
- }
-
- return -EINVAL; /* no match */
-}
-
-int
-libcfs_debug_str2mask(int *mask, const char *str, int is_subsys)
-{
int m = 0;
- char op = 0;
int matched;
int n;
int t;
if ((t = sscanf(str, "%i%n", &m, &matched)) >= 1 &&
matched == n) {
+ CWARN("You are trying to use a numerical value for the mask -"
+ " this will be deprecated in a future release.\n");
*mask = m;
return 0;
}
- /* <str> must be a list of debug tokens or numbers separated by
- * whitespace and optionally an operator ('+' or '-'). If an operator
- * appears first in <str>, '*mask' is used as the starting point
- * (relative), otherwise 0 is used (absolute). An operator applies to
- * all following tokens up to the next operator. */
-
- matched = 0;
- while (*str != 0) {
- while (isspace(*str)) /* skip whitespace */
- str++;
-
- if (*str == 0)
- break;
-
- if (*str == '+' || *str == '-') {
- op = *str++;
-
- /* op on first token == relative */
- if (!matched)
- m = *mask;
-
- while (isspace(*str)) /* skip whitespace */
- str++;
-
- if (*str == 0) /* trailing op */
- return -EINVAL;
- }
-
- /* find token length */
- for (n = 0; str[n] != 0 && !isspace(str[n]); n++);
-
- /* match token */
- if (libcfs_debug_token2mask(&t, str, n, is_subsys) != 0)
- return -EINVAL;
-
- matched = 1;
- if (op == '-')
- m &= ~t;
- else
- m |= t;
-
- str += n;
- }
-
- if (!matched)
- return -EINVAL;
-
- *mask = m;
- return 0;
+ return cfs_str2mask(str, fn, mask, is_subsys ? 0 : D_CANTMASK,
+ 0xffffffff);
}
+/**
+ * Dump Lustre log to ::debug_file_path by calling tracefile_dump_all_pages()
+ */
void libcfs_debug_dumplog_internal(void *arg)
{
CFS_DECL_JOURNAL_DATA;
CFS_PUSH_JOURNAL;
- if (strncmp(debug_file_path, "NONE", 4) != 0) {
+ if (strncmp(libcfs_debug_file_path_arr, "NONE", 4) != 0) {
snprintf(debug_file_name, sizeof(debug_file_name) - 1,
- "%s.%ld.%ld", debug_file_path, cfs_time_current_sec(),
- (long)arg);
- printk(KERN_ALERT "LustreError: dumping log to %s\n",
+ "%s.%ld." LPLD, libcfs_debug_file_path_arr,
+ cfs_time_current_sec(), (long_ptr_t)arg);
+ printk(CFS_KERN_ALERT "LustreError: dumping log to %s\n",
debug_file_name);
- tracefile_dump_all_pages(debug_file_name);
+ cfs_tracefile_dump_all_pages(debug_file_name);
+ libcfs_run_debug_log_upcall(debug_file_name);
}
CFS_POP_JOURNAL;
}
int libcfs_debug_dumplog_thread(void *arg)
{
- cfs_daemonize("");
libcfs_debug_dumplog_internal(arg);
cfs_waitq_signal(&debug_ctlwq);
return 0;
void libcfs_debug_dumplog(void)
{
- int rc;
cfs_waitlink_t wait;
+ cfs_task_t *dumper;
ENTRY;
/* we're being careful to ensure that the kernel thread is
* able to set our state to running as it exits before we
* get to schedule() */
cfs_waitlink_init(&wait);
- set_current_state(TASK_INTERRUPTIBLE);
+ cfs_set_current_state(CFS_TASK_INTERRUPTIBLE);
cfs_waitq_add(&debug_ctlwq, &wait);
- rc = cfs_kernel_thread(libcfs_debug_dumplog_thread,
- (void *)(long)cfs_curproc_pid(),
- CLONE_VM | CLONE_FS | CLONE_FILES);
- if (rc < 0)
- printk(KERN_ERR "LustreError: cannot start log dump thread: "
- "%d\n", rc);
+ dumper = cfs_kthread_run(libcfs_debug_dumplog_thread,
+ (void*)(long)cfs_curproc_pid(),
+ "libcfs_debug_dumper");
+ if (IS_ERR(dumper))
+ printk(CFS_KERN_ERR "LustreError: cannot start log dump thread:"
+ " %ld\n", PTR_ERR(dumper));
else
cfs_waitq_wait(&wait, CFS_TASK_INTERRUPTIBLE);
- /* be sure to teardown if kernel_thread() failed */
+ /* be sure to teardown if cfs_kernel_thread() failed */
cfs_waitq_del(&debug_ctlwq, &wait);
- set_current_state(TASK_RUNNING);
+ cfs_set_current_state(CFS_TASK_RUNNING);
}
int libcfs_debug_init(unsigned long bufsize)
{
int rc = 0;
- int max = libcfs_debug_mb;
+ unsigned int max = libcfs_debug_mb;
cfs_waitq_init(&debug_ctlwq);
- libcfs_console_max_delay = CDEBUG_DEFAULT_MAX_DELAY;
- libcfs_console_min_delay = CDEBUG_DEFAULT_MIN_DELAY;
+
+ if (libcfs_console_max_delay <= 0 || /* not set by user or */
+ libcfs_console_min_delay <= 0 || /* set to invalid values */
+ libcfs_console_min_delay >= libcfs_console_max_delay) {
+ libcfs_console_max_delay = CDEBUG_DEFAULT_MAX_DELAY;
+ libcfs_console_min_delay = CDEBUG_DEFAULT_MIN_DELAY;
+ }
+
+ if (libcfs_debug_file_path != NULL) {
+ memset(libcfs_debug_file_path_arr, 0, PATH_MAX);
+ strncpy(libcfs_debug_file_path_arr,
+ libcfs_debug_file_path, PATH_MAX-1);
+ }
+
/* If libcfs_debug_mb is set to an invalid value or uninitialized
* then just make the total buffers smp_num_cpus * TCD_MAX_PAGES */
- if (max > trace_max_debug_mb() || max < num_possible_cpus()) {
+ if (max > cfs_trace_max_debug_mb() || max < cfs_num_possible_cpus()) {
max = TCD_MAX_PAGES;
} else {
- max = (max / num_possible_cpus());
+ max = (max / cfs_num_possible_cpus());
max = (max << (20 - CFS_PAGE_SHIFT));
}
- rc = tracefile_init(max);
+ rc = cfs_tracefile_init(max);
if (rc == 0)
libcfs_register_panic_notifier();
int libcfs_debug_cleanup(void)
{
libcfs_unregister_panic_notifier();
- tracefile_exit();
+ cfs_tracefile_exit();
return 0;
}
int libcfs_debug_clear_buffer(void)
{
- trace_flush_pages();
+ cfs_trace_flush_pages();
return 0;
}
* should not be be marked as such. */
#undef DEBUG_SUBSYSTEM
#define DEBUG_SUBSYSTEM S_UNDEFINED
-int libcfs_debug_mark_buffer(char *text)
+int libcfs_debug_mark_buffer(const char *text)
{
CDEBUG(D_TRACE,"***************************************************\n");
- CDEBUG(D_WARNING, "DEBUG MARKER: %s\n", text);
+ LCONSOLE(D_WARNING, "DEBUG MARKER: %s\n", text);
CDEBUG(D_TRACE,"***************************************************\n");
return 0;
void libcfs_debug_set_level(unsigned int debug_level)
{
- printk(KERN_WARNING "Lustre: Setting portals debug level to %08x\n",
+ printk(CFS_KERN_WARNING "Lustre: Setting portals debug level to %08x\n",
debug_level);
libcfs_debug = debug_level;
}
EXPORT_SYMBOL(libcfs_debug_dumplog);
EXPORT_SYMBOL(libcfs_debug_set_level);
-
-
-#else /* !__KERNEL__ */
-
-#include <libcfs/libcfs.h>
-
-#ifdef HAVE_CATAMOUNT_DATA_H
-#include <catamount/data.h>
-#include <catamount/lputs.h>
-
-static char source_nid[16];
-/* 0 indicates no messages to console, 1 is errors, > 1 is all debug messages */
-static int toconsole = 1;
-unsigned int libcfs_console_ratelimit = 1;
-cfs_duration_t libcfs_console_max_delay;
-cfs_duration_t libcfs_console_min_delay;
-unsigned int libcfs_console_backoff = CDEBUG_DEFAULT_BACKOFF;
-#else /* !HAVE_CATAMOUNT_DATA_H */
-#ifdef HAVE_NETDB_H
-#include <sys/utsname.h>
-#endif /* HAVE_NETDB_H */
-struct utsname *tmp_utsname;
-static char source_nid[sizeof(tmp_utsname->nodename)];
-#endif /* HAVE_CATAMOUNT_DATA_H */
-
-static int source_pid;
-int smp_processor_id = 1;
-char debug_file_path[1024];
-FILE *debug_file_fd;
-
-int portals_do_debug_dumplog(void *arg)
-{
- printf("Look in %s\n", debug_file_name);
- return 0;
-}
-
-
-void portals_debug_print(void)
-{
- return;
-}
-
-
-void libcfs_debug_dumplog(void)
-{
- printf("Look in %s\n", debug_file_name);
- return;
-}
-
-int libcfs_debug_init(unsigned long bufsize)
-{
- char *debug_mask = NULL;
- char *debug_subsys = NULL;
- char *debug_filename;
-
-#ifdef HAVE_CATAMOUNT_DATA_H
- char *debug_console = NULL;
- char *debug_ratelimit = NULL;
- char *debug_max_delay = NULL;
- char *debug_min_delay = NULL;
- char *debug_backoff = NULL;
-
- libcfs_console_max_delay = CDEBUG_DEFAULT_MAX_DELAY;
- libcfs_console_min_delay = CDEBUG_DEFAULT_MIN_DELAY;
-
- snprintf(source_nid, sizeof(source_nid) - 1, "%u", _my_pnid);
- source_pid = _my_pid;
-
- debug_console = getenv("LIBLUSTRE_DEBUG_CONSOLE");
- if (debug_console != NULL) {
- toconsole = strtoul(debug_console, NULL, 0);
- CDEBUG(D_INFO, "set liblustre toconsole to %u\n", toconsole);
- }
- debug_ratelimit = getenv("LIBLUSTRE_DEBUG_CONSOLE_RATELIMIT");
- if (debug_ratelimit != NULL) {
- libcfs_console_ratelimit = strtoul(debug_ratelimit, NULL, 0);
- CDEBUG(D_INFO, "set liblustre console ratelimit to %u\n",
- libcfs_console_ratelimit);
- }
- debug_max_delay = getenv("LIBLUSTRE_DEBUG_CONSOLE_MAX_DELAY");
- if (debug_max_delay != NULL)
- libcfs_console_max_delay =
- cfs_time_seconds(strtoul(debug_max_delay, NULL, 0));
- debug_min_delay = getenv("LIBLUSTRE_DEBUG_CONSOLE_MIN_DELAY");
- if (debug_min_delay != NULL)
- libcfs_console_min_delay =
- cfs_time_seconds(strtoul(debug_min_delay, NULL, 0));
- if (debug_min_delay || debug_max_delay) {
- if (!libcfs_console_max_delay || !libcfs_console_min_delay ||
- libcfs_console_max_delay < libcfs_console_min_delay) {
- libcfs_console_max_delay = CDEBUG_DEFAULT_MAX_DELAY;
- libcfs_console_min_delay = CDEBUG_DEFAULT_MIN_DELAY;
- CDEBUG(D_INFO, "LIBLUSTRE_DEBUG_CONSOLE_MAX_DELAY "
- "should be greater than "
- "LIBLUSTRE_DEBUG_CONSOLE_MIN_DELAY "
- "and both parameters should be non-null"
- ": restore default values\n");
- } else {
- CDEBUG(D_INFO, "set liblustre console max delay to %lus"
- " and min delay to %lus\n",
- (cfs_duration_t)
- cfs_duration_sec(libcfs_console_max_delay),
- (cfs_duration_t)
- cfs_duration_sec(libcfs_console_min_delay));
- }
- }
- debug_backoff = getenv("LIBLUSTRE_DEBUG_CONSOLE_BACKOFF");
- if (debug_backoff != NULL) {
- libcfs_console_backoff = strtoul(debug_backoff, NULL, 0);
- if (libcfs_console_backoff <= 0) {
- libcfs_console_backoff = CDEBUG_DEFAULT_BACKOFF;
- CDEBUG(D_INFO, "LIBLUSTRE_DEBUG_CONSOLE_BACKOFF <= 0: "
- "restore default value\n");
- } else {
- CDEBUG(D_INFO, "set liblustre console backoff to %u\n",
- libcfs_console_backoff);
- }
- }
-#else
- struct utsname myname;
-
- if (uname(&myname) == 0)
- strcpy(source_nid, myname.nodename);
- source_pid = getpid();
-#endif
- /* debug masks */
- debug_mask = getenv("LIBLUSTRE_DEBUG_MASK");
- if (debug_mask)
- libcfs_debug = (unsigned int) strtol(debug_mask, NULL, 0);
-
- debug_subsys = getenv("LIBLUSTRE_DEBUG_SUBSYS");
- if (debug_subsys)
- libcfs_subsystem_debug =
- (unsigned int) strtol(debug_subsys, NULL, 0);
-
- debug_filename = getenv("LIBLUSTRE_DEBUG_BASE");
- if (debug_filename)
- strncpy(debug_file_path,debug_filename,sizeof(debug_file_path));
-
- debug_filename = getenv("LIBLUSTRE_DEBUG_FILE");
- if (debug_filename)
- strncpy(debug_file_name,debug_filename,sizeof(debug_file_name));
-
- if (debug_file_name[0] == '\0' && debug_file_path[0] != '\0')
- snprintf(debug_file_name, sizeof(debug_file_name) - 1,
- "%s-%s-"CFS_TIME_T".log", debug_file_path, source_nid, time(0));
-
- if (strcmp(debug_file_name, "stdout") == 0 ||
- strcmp(debug_file_name, "-") == 0) {
- debug_file_fd = stdout;
- } else if (strcmp(debug_file_name, "stderr") == 0) {
- debug_file_fd = stderr;
- } else if (debug_file_name[0] != '\0') {
- debug_file_fd = fopen(debug_file_name, "w");
- if (debug_file_fd == NULL)
- fprintf(stderr, "%s: unable to open '%s': %s\n",
- source_nid, debug_file_name, strerror(errno));
- }
-
- if (debug_file_fd == NULL)
- debug_file_fd = stdout;
-
- return 0;
-}
-
-int libcfs_debug_cleanup(void)
-{
- if (debug_file_fd != stdout && debug_file_fd != stderr)
- fclose(debug_file_fd);
- return 0;
-}
-
-int libcfs_debug_clear_buffer(void)
-{
- return 0;
-}
-
-int libcfs_debug_mark_buffer(char *text)
-{
-
- fprintf(debug_file_fd, "*******************************************************************************\n");
- fprintf(debug_file_fd, "DEBUG MARKER: %s\n", text);
- fprintf(debug_file_fd, "*******************************************************************************\n");
-
- return 0;
-}
-
-#ifdef HAVE_CATAMOUNT_DATA_H
-#define CATAMOUNT_MAXLINE (256-4)
-void catamount_printline(char *buf, size_t size)
-{
- char *pos = buf;
- int prsize = size;
-
- while (prsize > 0){
- lputs(pos);
- pos += CATAMOUNT_MAXLINE;
- prsize -= CATAMOUNT_MAXLINE;
- }
-}
-#endif
-
-int
-libcfs_debug_vmsg2(cfs_debug_limit_state_t *cdls,
- int subsys, int mask,
- const char *file, const char *fn, const int line,
- const char *format1, va_list args,
- const char *format2, ...)
-{
- struct timeval tv;
- int nob;
- int remain;
- va_list ap;
- char buf[CFS_PAGE_SIZE]; /* size 4096 used for compatimble
- * with linux, where message can`t
- * be exceed PAGE_SIZE */
- int console = 0;
- char *prefix = "Lustre";
-
-#ifdef HAVE_CATAMOUNT_DATA_H
- /* toconsole == 0 - all messages to debug_file_fd
- * toconsole == 1 - warnings to console, all to debug_file_fd
- * toconsole > 1 - all debug to console */
- if (((mask & libcfs_printk) && toconsole == 1) || toconsole > 1)
- console = 1;
-#endif
-
- if ((!console) && (!debug_file_fd)) {
- return 0;
- }
-
- if (mask & (D_EMERG | D_ERROR))
- prefix = "LustreError";
-
- nob = snprintf(buf, sizeof(buf), "%s: %u-%s:(%s:%d:%s()): ", prefix,
- source_pid, source_nid, file, line, fn);
-
- remain = sizeof(buf) - nob;
- if (format1) {
- nob += vsnprintf(&buf[nob], remain, format1, args);
- }
-
- remain = sizeof(buf) - nob;
- if ((format2) && (remain > 0)) {
- va_start(ap, format2);
- nob += vsnprintf(&buf[nob], remain, format2, ap);
- va_end(ap);
- }
-
-#ifdef HAVE_CATAMOUNT_DATA_H
- if (console) {
- /* check rate limit for console */
- if (cdls != NULL) {
- if (libcfs_console_ratelimit &&
- cdls->cdls_next != 0 && /* not first time ever */
- !cfs_time_after(cfs_time_current(), cdls->cdls_next)) {
-
- /* skipping a console message */
- cdls->cdls_count++;
- goto out_file;
- }
-
- if (cfs_time_after(cfs_time_current(), cdls->cdls_next +
- libcfs_console_max_delay +
- cfs_time_seconds(10))) {
- /* last timeout was a long time ago */
- cdls->cdls_delay /= libcfs_console_backoff * 4;
- } else {
- cdls->cdls_delay *= libcfs_console_backoff;
-
- if (cdls->cdls_delay <
- libcfs_console_min_delay)
- cdls->cdls_delay =
- libcfs_console_min_delay;
- else if (cdls->cdls_delay >
- libcfs_console_max_delay)
- cdls->cdls_delay =
- libcfs_console_max_delay;
- }
-
- /* ensure cdls_next is never zero after it's been seen */
- cdls->cdls_next = (cfs_time_current() + cdls->cdls_delay) | 1;
- }
-
- if (cdls != NULL && cdls->cdls_count != 0) {
- char buf2[100];
-
- nob = snprintf(buf2, sizeof(buf2),
- "Skipped %d previous similar message%s\n",
- cdls->cdls_count, (cdls->cdls_count > 1) ? "s" : "");
-
- catamount_printline(buf2, nob);
- cdls->cdls_count = 0;
- goto out_file;
- }
- catamount_printline(buf, nob);
- }
-out_file:
- /* return on toconsole > 1, as we don't want the user getting
- * spammed by the debug data */
- if (toconsole > 1)
- return 0;
-#endif
- if (debug_file_fd == NULL)
- return 0;
-
- gettimeofday(&tv, NULL);
-
- fprintf(debug_file_fd, CFS_TIME_T".%06lu:%u:%s:(%s:%d:%s()): %s",
- tv.tv_sec, tv.tv_usec, source_pid, source_nid,
- file, line, fn, buf);
-
- return 0;
-}
-
-void
-libcfs_assertion_failed(const char *expr, const char *file, const char *func,
- const int line)
-{
- libcfs_debug_msg(NULL, 0, D_EMERG, file, func, line,
- "ASSERTION(%s) failed\n", expr);
- abort();
-}
-
-#endif /* __KERNEL__ */