# define DEBUG_SUBSYSTEM S_LNET
+#include <stdarg.h>
#include <libcfs/kp30.h>
#include <libcfs/libcfs.h>
#include "tracefile.h"
#ifdef __KERNEL__
unsigned int libcfs_subsystem_debug = ~0;
+CFS_MODULE_PARM(libcfs_subsystem_debug, "i", int, 0644,
+ "Lustre kernel debug subsystem mask");
EXPORT_SYMBOL(libcfs_subsystem_debug);
unsigned int libcfs_debug = (D_EMERG | D_ERROR | D_WARNING | D_CONSOLE |
D_NETERROR | D_HA | D_CONFIG | D_IOCTL);
+CFS_MODULE_PARM(libcfs_debug, "i", int, 0644,
+ "Lustre kernel debug mask");
EXPORT_SYMBOL(libcfs_debug);
-unsigned int libcfs_printk;
+int libcfs_debug_mb = -1;
+CFS_MODULE_PARM(libcfs_debug_mb, "i", int, 0644,
+ "Total debug buffer size.");
+EXPORT_SYMBOL(libcfs_debug_mb);
+
+unsigned int libcfs_printk = D_CANTMASK;
+CFS_MODULE_PARM(libcfs_printk, "i", uint, 0644,
+ "Lustre kernel debug console mask");
EXPORT_SYMBOL(libcfs_printk);
unsigned int libcfs_console_ratelimit = 1;
+CFS_MODULE_PARM(libcfs_console_ratelimit, "i", uint, 0644,
+ "Lustre kernel debug console ratelimit (0 to disable)");
EXPORT_SYMBOL(libcfs_console_ratelimit);
+cfs_duration_t libcfs_console_max_delay;
+CFS_MODULE_PARM(libcfs_console_max_delay, "l", ulong, 0644,
+ "Lustre kernel debug console max delay (jiffies)");
+EXPORT_SYMBOL(libcfs_console_max_delay);
+
+cfs_duration_t libcfs_console_min_delay;
+CFS_MODULE_PARM(libcfs_console_min_delay, "l", ulong, 0644,
+ "Lustre kernel debug console min delay (jiffies)");
+EXPORT_SYMBOL(libcfs_console_min_delay);
+
+unsigned int libcfs_console_backoff = CDEBUG_DEFAULT_BACKOFF;
+CFS_MODULE_PARM(libcfs_console_backoff, "i", uint, 0644,
+ "Lustre kernel debug console backoff factor");
+EXPORT_SYMBOL(libcfs_console_backoff);
+
unsigned int libcfs_debug_binary = 1;
EXPORT_SYMBOL(libcfs_debug_binary);
EXPORT_SYMBOL(libcfs_catastrophe);
unsigned int libcfs_panic_on_lbug = 0;
+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);
#else
char debug_file_path[1024] = "/tmp/lustre-log";
#endif
+CFS_MODULE_PARM(debug_file_path, "s", charp, 0644,
+ "Path for dumping debug logs, "
+ "set 'NONE' to prevent log dumping");
int libcfs_panic_in_progress;
str[len] = ' ';
len++;
}
-
+
while (*token != 0) {
if (len < size)
str[len] = *token;
token = fn(bit);
if (token == NULL) /* unused? */
continue;
-
+
/* strcasecmp */
for (j = 0; ; j++) {
if (j == len) { /* end of token */
}
break;
}
-
+
if (token[j] == 0)
break;
-
+
if (str[j] == token[j])
continue;
-
+
if (str[j] < 'A' || 'Z' < str[j])
break;
break;
}
}
-
+
return -EINVAL; /* no match */
}
libcfs_debug_str2mask(int *mask, const char *str, int is_subsys)
{
int m = 0;
- int matched = 0;
char op = 0;
+ int matched;
int n;
int t;
+ /* Allow a number for backwards compatibility */
+
+ for (n = strlen(str); n > 0; n--)
+ if (!isspace(str[n-1]))
+ break;
+ matched = n;
+
+ if ((t = sscanf(str, "%i%n", &m, &matched)) >= 1 &&
+ matched == 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++;
/* 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;
}
CFS_PUSH_JOURNAL;
- snprintf(debug_file_name, sizeof(debug_file_path) - 1, "%s.%ld.%ld",
- debug_file_path, cfs_time_current_sec(), (long)arg);
- printk(KERN_ALERT "LustreError: dumping log to %s\n", debug_file_name);
- tracefile_dump_all_pages(debug_file_name);
-
+ if (strncmp(debug_file_path, "NONE", 4) != 0) {
+ snprintf(debug_file_name, sizeof(debug_file_path) - 1,
+ "%s.%ld.%ld", debug_file_path, cfs_time_current_sec(),
+ (long)arg);
+ printk(KERN_ALERT "LustreError: dumping log to %s\n",
+ debug_file_name);
+ tracefile_dump_all_pages(debug_file_name);
+ }
CFS_POP_JOURNAL;
}
int libcfs_debug_init(unsigned long bufsize)
{
- int rc;
+ int rc = 0;
+ int max = libcfs_debug_mb;
cfs_waitq_init(&debug_ctlwq);
- rc = tracefile_init();
+ libcfs_console_max_delay = CDEBUG_DEFAULT_MAX_DELAY;
+ libcfs_console_min_delay = CDEBUG_DEFAULT_MIN_DELAY;
+ /* 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()) {
+ max = TCD_MAX_PAGES;
+ } else {
+ max = (max / num_possible_cpus());
+ max = (max << (20 - CFS_PAGE_SHIFT));
+ }
+ rc = tracefile_init(max);
if (rc == 0)
libcfs_register_panic_notifier();
#include <libcfs/libcfs.h>
-#ifdef HAVE_SYS_USER_H
-# include <sys/user.h>
-#endif
-
#ifdef HAVE_CATAMOUNT_DATA_H
#include <catamount/data.h>
#include <catamount/lputs.h>
/* 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_CATAMOUNT_DATA_H */
+#endif /* HAVE_NETDB_H */
struct utsname *tmp_utsname;
static char source_nid[sizeof(tmp_utsname->nodename)];
-#endif /* __KERNEL__ */
+#endif /* HAVE_CATAMOUNT_DATA_H */
static int source_pid;
int smp_processor_id = 1;
#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_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);
+ 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 (debug_file_name[0] == '\0' && debug_file_path[0] != '\0')
snprintf(debug_file_name, sizeof(debug_file_name) - 1,
- "%s-%s-%lu.log", debug_file_path, source_nid, time(0));
+ "%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) {
int nob;
int remain;
va_list ap;
- char buf[PAGE_SIZE]; /* size 4096 used for compatimble with linux,
- * where message can`t be exceed PAGE_SIZE */
+ 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";
/* 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 & D_CANTMASK) &&
- (toconsole == 1)) || (toconsole > 1)) {
+ if (((mask & libcfs_printk) && toconsole == 1) || toconsole > 1)
console = 1;
- }
#endif
if ((!console) && (!debug_file_fd)) {
if (console) {
/* check rate limit for console */
if (cdls != NULL) {
- cfs_time_t t = cdls->cdls_next +
- cfs_time_seconds(CDEBUG_MAX_LIMIT + 10);
- cfs_duration_t dmax = cfs_time_seconds(CDEBUG_MAX_LIMIT);
-
if (libcfs_console_ratelimit &&
cdls->cdls_next != 0 && /* not first time ever */
!cfs_time_after(cfs_time_current(), cdls->cdls_next)) {
goto out_file;
}
- if (cfs_time_after(cfs_time_current(), t)) {
+ 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 /= 8;
+ cdls->cdls_delay /= libcfs_console_backoff * 4;
} else {
- cdls->cdls_delay *= 2;
-
- if (cdls->cdls_delay < CFS_TICK)
- cdls->cdls_delay = CFS_TICK;
- else if (cdls->cdls_delay > dmax)
- cdls->cdls_delay = dmax;
+ 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 */
gettimeofday(&tv, NULL);
- fprintf(debug_file_fd, "%lu.%06lu:%u:%s:(%s:%d:%s()): %s",
+ 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);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff