X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;ds=sidebyside;f=lnet%2Flibcfs%2Fdebug.c;h=58ef681a18c89a8397cf4ac2394e6719869957c1;hb=180c2dd3915383bbfdcf6cad6a8058ca045c8b61;hp=f571958c33fec9834c7cc14d627caeb4cac68c6b;hpb=fb1d86804d2e9f82045c5198b2a9850321c64fb9;p=fs%2Flustre-release.git diff --git a/lnet/libcfs/debug.c b/lnet/libcfs/debug.c index f571958..58ef681 100644 --- a/lnet/libcfs/debug.c +++ b/lnet/libcfs/debug.c @@ -24,161 +24,427 @@ # define EXPORT_SYMTAB #endif -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include - -# define DEBUG_SUBSYSTEM S_PORTALS - -#include -#include -#include +# define DEBUG_SUBSYSTEM S_LNET +#include +#include #include "tracefile.h" -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -#include -#endif +static char debug_file_name[1024]; -unsigned int portal_subsystem_debug = ~0 - (S_PORTALS | S_QSWNAL | S_SOCKNAL | - S_GMNAL | S_IBNAL); -EXPORT_SYMBOL(portal_subsystem_debug); +#ifdef __KERNEL__ +unsigned int libcfs_subsystem_debug = ~0; +EXPORT_SYMBOL(libcfs_subsystem_debug); -unsigned int portal_debug = (D_WARNING | D_DLMTRACE | D_ERROR | D_EMERG | D_HA | - D_RPCTRACE | D_VFSTRACE); -EXPORT_SYMBOL(portal_debug); +unsigned int libcfs_debug = (D_EMERG | D_ERROR | D_WARNING | D_CONSOLE | + D_NETERROR | D_HA | D_CONFIG | D_IOCTL); +EXPORT_SYMBOL(libcfs_debug); -unsigned int portal_printk; -EXPORT_SYMBOL(portal_printk); +unsigned int libcfs_printk; +EXPORT_SYMBOL(libcfs_printk); -unsigned int portal_stack; -EXPORT_SYMBOL(portal_stack); +unsigned int libcfs_console_ratelimit = 1; +EXPORT_SYMBOL(libcfs_console_ratelimit); -#ifdef __KERNEL__ -atomic_t portal_kmemory = ATOMIC_INIT(0); -EXPORT_SYMBOL(portal_kmemory); -#endif +unsigned int libcfs_debug_binary = 1; +EXPORT_SYMBOL(libcfs_debug_binary); + +unsigned int libcfs_stack; +EXPORT_SYMBOL(libcfs_stack); + +unsigned int portal_enter_debugger; +EXPORT_SYMBOL(portal_enter_debugger); + +unsigned int libcfs_catastrophe; +EXPORT_SYMBOL(libcfs_catastrophe); + +unsigned int libcfs_panic_on_lbug = 0; +EXPORT_SYMBOL(libcfs_panic_on_lbug); -static DECLARE_WAIT_QUEUE_HEAD(debug_ctlwq); +atomic_t libcfs_kmemory = 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"; -static char debug_file_name[1024]; -static int handled_panic; /* to avoid recursive calls to notifiers */ -char portals_upcall[1024] = "/usr/lib/lustre/portals_upcall"; +#endif -int portals_do_debug_dumplog(void *arg) +int libcfs_panic_in_progress; + +/* libcfs_debug_token2mask() expects the returned + * string in lower-case */ +const char * +libcfs_debug_subsys2str(int subsys) +{ + switch (subsys) { + default: + return NULL; + case S_UNDEFINED: + return "undefined"; + case S_MDC: + return "mdc"; + case S_MDS: + return "mds"; + case S_OSC: + return "osc"; + case S_OST: + return "ost"; + case S_CLASS: + return "class"; + case S_LOG: + return "log"; + case S_LLITE: + return "llite"; + case S_RPC: + return "rpc"; + case S_LNET: + return "lnet"; + case S_LND: + return "lnd"; + case S_PINGER: + return "pinger"; + case S_FILTER: + return "filter"; + case S_ECHO: + return "echo"; + case S_LDLM: + return "ldlm"; + case S_LOV: + return "lov"; + case S_LMV: + return "lmv"; + case S_SEC: + return "sec"; + case S_GSS: + return "gss"; + case S_MGC: + return "mgc"; + case S_MGS: + return "mgs"; + case S_FID: + return "fid"; + case S_FLD: + return "fld"; + } +} + +/* libcfs_debug_token2mask() expects the returned + * string in lower-case */ +const char * +libcfs_debug_dbg2str(int debug) { - void *journal_info; + switch (debug) { + default: + return NULL; + case D_TRACE: + return "trace"; + case D_INODE: + return "inode"; + case D_SUPER: + return "super"; + case D_EXT2: + return "ext2"; + case D_MALLOC: + return "malloc"; + case D_CACHE: + return "cache"; + case D_INFO: + return "info"; + case D_IOCTL: + return "ioctl"; + case D_NETERROR: + return "neterror"; + case D_NET: + return "net"; + case D_WARNING: + return "warning"; + case D_BUFFS: + return "buffs"; + case D_OTHER: + return "other"; + case D_DENTRY: + return "dentry"; + case D_NETTRACE: + return "nettrace"; + case D_PAGE: + return "page"; + case D_DLMTRACE: + return "dlmtrace"; + case D_ERROR: + return "error"; + case D_EMERG: + return "emerg"; + case D_HA: + return "ha"; + case D_RPCTRACE: + return "rpctrace"; + case D_VFSTRACE: + return "vfstrace"; + case D_READA: + return "reada"; + case D_MMAP: + return "mmap"; + case D_CONFIG: + return "config"; + case D_CONSOLE: + return "console"; + case D_QUOTA: + return "quota"; + case D_SEC: + return "sec"; + } +} + +int +libcfs_debug_mask2str(char *str, int size, int mask, int is_subsys) +{ + const char *(*fn)(int bit) = is_subsys ? libcfs_debug_subsys2str : + libcfs_debug_dbg2str; + int len = 0; + const char *token; + int bit; + int i; + + if (mask == 0) { /* "0" */ + if (size > 0) + str[0] = '0'; + len = 1; + } else { /* space-separated tokens */ + for (i = 0; i < 32; i++) { + bit = 1 << i; + + if ((mask & bit) == 0) + continue; + + token = fn(bit); + if (token == NULL) /* unused bit */ + continue; + + if (len > 0) { /* separator? */ + if (len < size) + str[len] = ' '; + len++; + } - kportal_daemonize(""); + while (*token != 0) { + if (len < size) + str[len] = *token; + token++; + len++; + } + } + } + + /* terminate 'str' */ + if (len < size) + str[len] = 0; + else + str[size - 1] = 0; - reparent_to_init(); - journal_info = current->journal_info; - current->journal_info = NULL; + return len; +} + +int +libcfs_debug_token2mask(int *mask, const char *str, int len, 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; + } - snprintf(debug_file_name, sizeof(debug_file_path) - 1, - "%s.%ld.%ld", debug_file_path, CURRENT_SECONDS, (long)arg); + 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; + + /* 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; + } + + /* must be a list of debug tokens or numbers separated by + * whitespace and optionally an operator ('+' or '-'). If an operator + * appears first in , '*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; +} + +void libcfs_debug_dumplog_internal(void *arg) +{ + CFS_DECL_JOURNAL_DATA; + + 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); - current->journal_info = journal_info; - wake_up(&debug_ctlwq); + 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 portals_debug_dumplog(void) +void libcfs_debug_dumplog(void) { - int rc; - DECLARE_WAITQUEUE(wait, current); + int rc; + cfs_waitlink_t wait; 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); - add_wait_queue(&debug_ctlwq, &wait); + cfs_waitq_add(&debug_ctlwq, &wait); - rc = kernel_thread(portals_do_debug_dumplog, (void *)(long)current->pid, - CLONE_VM | CLONE_FS | CLONE_FILES); + 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); else - schedule(); + cfs_waitq_wait(&wait, CFS_TASK_INTERRUPTIBLE); /* be sure to teardown if kernel_thread() failed */ - remove_wait_queue(&debug_ctlwq, &wait); + cfs_waitq_del(&debug_ctlwq, &wait); set_current_state(TASK_RUNNING); } -static int panic_dumplog(struct notifier_block *self, unsigned long unused1, - void *unused2) +int libcfs_debug_init(unsigned long bufsize) { - if (handled_panic) - return 0; - else - handled_panic = 1; + int rc; - if (in_interrupt()) { - trace_debug_print(); - return 0; - } + cfs_waitq_init(&debug_ctlwq); + rc = tracefile_init(); - while (current->lock_depth >= 0) - unlock_kernel(); - portals_debug_dumplog(); - return 0; -} - -static struct notifier_block lustre_panic_notifier = { - notifier_call : panic_dumplog, - next : NULL, - priority : 10000 -}; + if (rc == 0) + libcfs_register_panic_notifier(); -int portals_debug_init(unsigned long bufsize) -{ - notifier_chain_register(&panic_notifier_list, &lustre_panic_notifier); - return tracefile_init(); + return rc; } -int portals_debug_cleanup(void) +int libcfs_debug_cleanup(void) { + libcfs_unregister_panic_notifier(); tracefile_exit(); - notifier_chain_unregister(&panic_notifier_list, &lustre_panic_notifier); return 0; } -int portals_debug_clear_buffer(void) +int libcfs_debug_clear_buffer(void) { trace_flush_pages(); return 0; } -/* Debug markers, although printed by S_PORTALS +/* Debug markers, although printed by S_LNET * should not be be marked as such. */ #undef DEBUG_SUBSYSTEM #define DEBUG_SUBSYSTEM S_UNDEFINED -int portals_debug_mark_buffer(char *text) +int libcfs_debug_mark_buffer(char *text) { CDEBUG(D_TRACE,"***************************************************\n"); CDEBUG(D_WARNING, "DEBUG MARKER: %s\n", text); @@ -187,206 +453,293 @@ int portals_debug_mark_buffer(char *text) return 0; } #undef DEBUG_SUBSYSTEM -#define DEBUG_SUBSYSTEM S_PORTALS +#define DEBUG_SUBSYSTEM S_LNET -void portals_debug_set_level(unsigned int debug_level) +void libcfs_debug_set_level(unsigned int debug_level) { printk(KERN_WARNING "Lustre: Setting portals debug level to %08x\n", debug_level); - portal_debug = debug_level; + libcfs_debug = debug_level; } -void portals_run_upcall(char **argv) -{ - int rc; - int argc; - char *envp[] = { - "HOME=/", - "PATH=/sbin:/bin:/usr/sbin:/usr/bin", - NULL}; - ENTRY; +EXPORT_SYMBOL(libcfs_debug_dumplog); +EXPORT_SYMBOL(libcfs_debug_set_level); - argv[0] = portals_upcall; - argc = 1; - while (argv[argc] != NULL) - argc++; - - LASSERT(argc >= 2); - - rc = USERMODEHELPER(argv[0], argv, envp); - if (rc < 0) { - CERROR("Error %d invoking portals upcall %s %s%s%s%s%s%s%s%s; " - "check /proc/sys/portals/upcall\n", - rc, argv[0], argv[1], - argc < 3 ? "" : ",", argc < 3 ? "" : argv[2], - argc < 4 ? "" : ",", argc < 4 ? "" : argv[3], - argc < 5 ? "" : ",", argc < 5 ? "" : argv[4], - argc < 6 ? "" : ",..."); - } else { - CERROR("Invoked portals upcall %s %s%s%s%s%s%s%s%s\n", - argv[0], argv[1], - argc < 3 ? "" : ",", argc < 3 ? "" : argv[2], - argc < 4 ? "" : ",", argc < 4 ? "" : argv[3], - argc < 5 ? "" : ",", argc < 5 ? "" : argv[4], - argc < 6 ? "" : ",..."); - } -} -void portals_run_lbug_upcall(char *file, const char *fn, const int line) +#else /* !__KERNEL__ */ + +#include + +#ifdef HAVE_SYS_USER_H +# include +#endif + +#ifdef HAVE_CATAMOUNT_DATA_H +#include +#include + +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; +#else /* !HAVE_CATAMOUNT_DATA_H */ +#ifdef HAVE_NETDB_H +#include +#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) { - char *argv[6]; - char buf[32]; + printf("Look in %s\n", debug_file_name); + return 0; +} - ENTRY; - snprintf (buf, sizeof buf, "%d", line); - argv[1] = "LBUG"; - argv[2] = file; - argv[3] = (char *)fn; - argv[4] = buf; - argv[5] = NULL; +void portals_debug_print(void) +{ + return; +} - portals_run_upcall (argv); + +void libcfs_debug_dumplog(void) +{ + printf("Look in %s\n", debug_file_name); + return; } -char *portals_nid2str(int nal, ptl_nid_t nid, char *str) +int libcfs_debug_init(unsigned long bufsize) { - if (nid == PTL_NID_ANY) { - snprintf(str, PTL_NALFMT_SIZE, "%s", "PTL_NID_ANY"); - return str; + char *debug_mask = NULL; + char *debug_subsys = NULL; + char *debug_filename; + +#ifdef HAVE_CATAMOUNT_DATA_H + char *debug_console = NULL; + char *debug_ratelimit = NULL; + + 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); } +#else + struct utsname myname; - switch(nal){ -/* XXX this could be a nal method of some sort, 'cept it's config - * dependent whether (say) socknal NIDs are actually IP addresses... */ -#if !CRAY_PORTALS - case TCPNAL: - /* userspace NAL */ - case IIBNAL: - case OPENIBNAL: - case SOCKNAL: - snprintf(str, PTL_NALFMT_SIZE, "%u:%u.%u.%u.%u", - (__u32)(nid >> 32), HIPQUAD(nid)); - break; - case QSWNAL: - case GMNAL: - snprintf(str, PTL_NALFMT_SIZE, "%u:%u", - (__u32)(nid >> 32), (__u32)nid); - break; + if (uname(&myname) == 0) + strcpy(source_nid, myname.nodename); + source_pid = getpid(); #endif - default: - snprintf(str, PTL_NALFMT_SIZE, "?%x? %llx", - nal, (long long)nid); - break; + /* 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_path)); + + 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)); + + 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)); } - return str; + + if (debug_file_fd == NULL) + debug_file_fd = stdout; + + return 0; } -char *portals_id2str(int nal, ptl_process_id_t id, char *str) +int libcfs_debug_cleanup(void) { - int len; - - portals_nid2str(nal, id.nid, str); - len = strlen(str); - snprintf(str + len, PTL_NALFMT_SIZE, "-%u", id.pid); - return str; + if (debug_file_fd != stdout && debug_file_fd != stderr) + fclose(debug_file_fd); + return 0; } -#ifdef __KERNEL__ -char stack_backtrace[LUSTRE_TRACE_SIZE]; -spinlock_t stack_backtrace_lock = SPIN_LOCK_UNLOCKED; - -#if defined(__arch_um__) - -char *portals_debug_dumpstack(void) +int libcfs_debug_clear_buffer(void) { - asm("int $3"); - return "dump stack\n"; + return 0; } -#elif defined(__i386__) +int libcfs_debug_mark_buffer(char *text) +{ -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) -extern int lookup_symbol(unsigned long address, char *buf, int buflen); -const char *kallsyms_lookup(unsigned long addr, - unsigned long *symbolsize, - unsigned long *offset, - char **modname, char *namebuf) + 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) { - int rc = lookup_symbol(addr, namebuf, 128); - if (rc == -ENOSYS) - return NULL; - return namebuf; + char *pos = buf; + int prsize = size; + + while (prsize > 0){ + lputs(pos); + pos += CATAMOUNT_MAXLINE; + prsize -= CATAMOUNT_MAXLINE; + } } #endif -char *portals_debug_dumpstack(void) +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, ...) { - unsigned long esp = current->thread.esp, addr; - unsigned long *stack = (unsigned long *)&esp; - char *buf = stack_backtrace, *pbuf = buf; - int size; - - /* User space on another CPU? */ - if ((esp ^ (unsigned long)current) & (PAGE_MASK << 1)){ - buf[0] = '\0'; - goto out; + struct timeval tv; + 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 */ + 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 & D_CANTMASK) && + (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); } - size = sprintf(pbuf, " Call Trace: "); - pbuf += size; - while (((long) stack & (THREAD_SIZE - 1)) != 0) { - addr = *stack++; - if (kernel_text_address(addr)) { - const char *sym_name; - char *modname, buffer[128]; - unsigned long junk, offset; - - sym_name = kallsyms_lookup(addr, &junk, &offset, - &modname, buffer); - if (sym_name == NULL) { - if (buf + LUSTRE_TRACE_SIZE <= pbuf + 12) - break; - size = sprintf(pbuf, "[<%08lx>] ", addr); +#ifdef HAVE_CATAMOUNT_DATA_H + 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)) { + + /* skipping a console message */ + cdls->cdls_count++; + goto out_file; + } + + if (cfs_time_after(cfs_time_current(), t)) { + /* last timeout was a long time ago */ + cdls->cdls_delay /= 8; } else { - if (buf + LUSTRE_TRACE_SIZE - /* fix length + sizeof('\0') */ - <= pbuf + strlen(buffer) + 28 + 1) - break; - size = sprintf(pbuf, "([<%08lx>] %s (0x%p)) ", - addr, buffer, stack - 1); + 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; } - pbuf += size; + + /* ensure cdls_next is never zero after it's been seen */ + cdls->cdls_next = (cfs_time_current() + cdls->cdls_delay) | 1; } - } -out: - return buf; -} -#else /* !__arch_um__ && !__i386__ */ + if (cdls != NULL && cdls->cdls_count != 0) { + char buf2[100]; -char *portals_debug_dumpstack(void) -{ - char *buf = stack_backtrace; - buf[0] = '\0'; - return buf; + 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, "%lu.%06lu:%u:%s:(%s:%d:%s()): %s", + tv.tv_sec, tv.tv_usec, source_pid, source_nid, + file, line, fn, buf); + + return 0; } -#endif /* __arch_um__ */ -struct task_struct *portals_current(void) +void +libcfs_assertion_failed(const char *expr, const char *file, const char *func, + const int line) { - CWARN("current task struct is %p\n", current); - return current; + libcfs_debug_msg(NULL, 0, D_EMERG, file, func, line, + "ASSERTION(%s) failed\n", expr); + abort(); } -EXPORT_SYMBOL(stack_backtrace_lock); -EXPORT_SYMBOL(portals_debug_dumpstack); -EXPORT_SYMBOL(portals_current); #endif /* __KERNEL__ */ - -EXPORT_SYMBOL(portals_debug_dumplog); -EXPORT_SYMBOL(portals_debug_set_level); -EXPORT_SYMBOL(portals_run_upcall); -EXPORT_SYMBOL(portals_run_lbug_upcall); -EXPORT_SYMBOL(portals_nid2str); -EXPORT_SYMBOL(portals_id2str);