* CDDL HEADER END
*/
/*
- * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
- * Use is subject to license terms.
+ * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
*/
/*
#include <sys/types.h>
#include <sys/time.h>
-#include <sys/sysevent.h>
-#include <sys/sysevent_impl.h>
+#include <sys/list.h>
#include <sys/nvpair.h>
#include <sys/cmn_err.h>
-#include <sys/cpuvar.h>
#include <sys/sysmacros.h>
-#include <sys/systm.h>
-#include <sys/ddifm.h>
-#include <sys/ddifm_impl.h>
-#include <sys/spl.h>
-#include <sys/dumphdr.h>
#include <sys/compress.h>
-#include <sys/cpuvar.h>
-#include <sys/console.h>
-#include <sys/panic.h>
-#include <sys/kobj.h>
#include <sys/sunddi.h>
#include <sys/systeminfo.h>
-#include <sys/sysevent/eventdefs.h>
#include <sys/fm/util.h>
#include <sys/fm/protocol.h>
+#include <sys/kstat.h>
+#include <sys/zfs_context.h>
+#ifdef _KERNEL
+#include <sys/atomic.h>
+#include <sys/condvar.h>
+#include <sys/cpuvar.h>
+#include <sys/systm.h>
+#include <sys/dumphdr.h>
+#include <sys/cpuvar.h>
+#include <sys/console.h>
+#include <sys/kobj.h>
+#include <sys/time.h>
+#include <sys/zfs_ioctl.h>
-/*
- * URL and SUNW-MSG-ID value to display for fm_panic(), defined below. These
- * values must be kept in sync with the FMA source code in usr/src/cmd/fm.
- */
-static const char *fm_url = "http://www.sun.com/msg";
-static const char *fm_msgid = "SUNOS-8000-0G";
-static char *volatile fm_panicstr = NULL;
+int zfs_zevent_len_max = 0;
+int zfs_zevent_cols = 80;
+int zfs_zevent_console = 0;
-errorq_t *ereport_errorq;
-void *ereport_dumpbuf;
-size_t ereport_dumplen;
+static int zevent_len_cur = 0;
+static int zevent_waiters = 0;
+static int zevent_flags = 0;
-static uint_t ereport_chanlen = ERPT_EVCH_MAX;
-static evchan_t *ereport_chan = NULL;
-static ulong_t ereport_qlen = 0;
-static size_t ereport_size = 0;
-static int ereport_cols = 80;
+static kmutex_t zevent_lock;
+static list_t zevent_list;
+static kcondvar_t zevent_cv;
+#endif /* _KERNEL */
+
+extern void fastreboot_disable_highpil(void);
/*
- * Common fault management kstats to record ereport generation
- * failures
+ * Common fault management kstats to record event generation failures
*/
struct erpt_kstat {
{ "payload-set-failed", KSTAT_DATA_UINT64 }
};
-/*ARGSUSED*/
-static void
-fm_drain(void *private, void *data, errorq_elem_t *eep)
-{
- nvlist_t *nvl = errorq_elem_nvl(ereport_errorq, eep);
-
- if (!panicstr)
- (void) fm_ereport_post(nvl, EVCH_TRYHARD);
- else
- fm_nvprint(nvl);
-}
-
-void
-fm_init(void)
-{
- kstat_t *ksp;
-
- (void) sysevent_evc_bind(FM_ERROR_CHAN,
- &ereport_chan, EVCH_CREAT | EVCH_HOLD_PEND);
-
- (void) sysevent_evc_control(ereport_chan,
- EVCH_SET_CHAN_LEN, &ereport_chanlen);
-
- if (ereport_qlen == 0)
- ereport_qlen = ERPT_MAX_ERRS * MAX(max_ncpus, 4);
-
- if (ereport_size == 0)
- ereport_size = ERPT_DATA_SZ;
-
- ereport_errorq = errorq_nvcreate("fm_ereport_queue",
- (errorq_func_t)fm_drain, NULL, ereport_qlen, ereport_size,
- FM_ERR_PIL, ERRORQ_VITAL);
- if (ereport_errorq == NULL)
- panic("failed to create required ereport error queue");
-
- ereport_dumpbuf = kmem_alloc(ereport_size, KM_SLEEP);
- ereport_dumplen = ereport_size;
-
- /* Initialize ereport allocation and generation kstats */
- ksp = kstat_create("unix", 0, "fm", "misc", KSTAT_TYPE_NAMED,
- sizeof (struct erpt_kstat) / sizeof (kstat_named_t),
- KSTAT_FLAG_VIRTUAL);
-
- if (ksp != NULL) {
- ksp->ks_data = &erpt_kstat_data;
- kstat_install(ksp);
- } else {
- cmn_err(CE_NOTE, "failed to create fm/misc kstat\n");
+kstat_t *fm_ksp;
- }
-}
+#ifdef _KERNEL
/*
* Formatting utility function for fm_nvprintr. We attempt to wrap chunks of
va_end(ap);
if (c + width >= cols) {
- console_printf("\n\r");
+ console_printf("\n");
c = 0;
if (format[0] != ' ' && depth > 0) {
console_printf(" ");
case DATA_TYPE_BYTE:
(void) nvpair_value_byte(nvp, &i8);
- c = fm_printf(d + 1, c, cols, "%x", i8);
+ c = fm_printf(d + 1, c, cols, "0x%x", i8);
break;
case DATA_TYPE_INT8:
(void) nvpair_value_int8(nvp, (void *)&i8);
- c = fm_printf(d + 1, c, cols, "%x", i8);
+ c = fm_printf(d + 1, c, cols, "0x%x", i8);
break;
case DATA_TYPE_UINT8:
(void) nvpair_value_uint8(nvp, &i8);
- c = fm_printf(d + 1, c, cols, "%x", i8);
+ c = fm_printf(d + 1, c, cols, "0x%x", i8);
break;
case DATA_TYPE_INT16:
(void) nvpair_value_int16(nvp, (void *)&i16);
- c = fm_printf(d + 1, c, cols, "%x", i16);
+ c = fm_printf(d + 1, c, cols, "0x%x", i16);
break;
case DATA_TYPE_UINT16:
(void) nvpair_value_uint16(nvp, &i16);
- c = fm_printf(d + 1, c, cols, "%x", i16);
+ c = fm_printf(d + 1, c, cols, "0x%x", i16);
break;
case DATA_TYPE_INT32:
(void) nvpair_value_int32(nvp, (void *)&i32);
- c = fm_printf(d + 1, c, cols, "%x", i32);
+ c = fm_printf(d + 1, c, cols, "0x%x", i32);
break;
case DATA_TYPE_UINT32:
(void) nvpair_value_uint32(nvp, &i32);
- c = fm_printf(d + 1, c, cols, "%x", i32);
+ c = fm_printf(d + 1, c, cols, "0x%x", i32);
break;
case DATA_TYPE_INT64:
(void) nvpair_value_int64(nvp, (void *)&i64);
- c = fm_printf(d + 1, c, cols, "%llx",
+ c = fm_printf(d + 1, c, cols, "0x%llx",
(u_longlong_t)i64);
break;
case DATA_TYPE_UINT64:
(void) nvpair_value_uint64(nvp, &i64);
- c = fm_printf(d + 1, c, cols, "%llx",
+ c = fm_printf(d + 1, c, cols, "0x%llx",
(u_longlong_t)i64);
break;
case DATA_TYPE_HRTIME:
(void) nvpair_value_hrtime(nvp, (void *)&i64);
- c = fm_printf(d + 1, c, cols, "%llx",
+ c = fm_printf(d + 1, c, cols, "0x%llx",
(u_longlong_t)i64);
break;
}
break;
+ case DATA_TYPE_INT8_ARRAY: {
+ int8_t *val;
+ uint_t i, nelem;
+
+ c = fm_printf(d + 1, c, cols, "[ ");
+ (void) nvpair_value_int8_array(nvp, &val, &nelem);
+ for (i = 0; i < nelem; i++)
+ c = fm_printf(d + 1, c, cols, "0x%llx ",
+ (u_longlong_t)val[i]);
+
+ c = fm_printf(d + 1, c, cols, "]");
+ break;
+ }
+
+ case DATA_TYPE_UINT8_ARRAY: {
+ uint8_t *val;
+ uint_t i, nelem;
+
+ c = fm_printf(d + 1, c, cols, "[ ");
+ (void) nvpair_value_uint8_array(nvp, &val, &nelem);
+ for (i = 0; i < nelem; i++)
+ c = fm_printf(d + 1, c, cols, "0x%llx ",
+ (u_longlong_t)val[i]);
+
+ c = fm_printf(d + 1, c, cols, "]");
+ break;
+ }
+
+ case DATA_TYPE_INT16_ARRAY: {
+ int16_t *val;
+ uint_t i, nelem;
+
+ c = fm_printf(d + 1, c, cols, "[ ");
+ (void) nvpair_value_int16_array(nvp, &val, &nelem);
+ for (i = 0; i < nelem; i++)
+ c = fm_printf(d + 1, c, cols, "0x%llx ",
+ (u_longlong_t)val[i]);
+
+ c = fm_printf(d + 1, c, cols, "]");
+ break;
+ }
+
+ case DATA_TYPE_UINT16_ARRAY: {
+ uint16_t *val;
+ uint_t i, nelem;
+
+ c = fm_printf(d + 1, c, cols, "[ ");
+ (void) nvpair_value_uint16_array(nvp, &val, &nelem);
+ for (i = 0; i < nelem; i++)
+ c = fm_printf(d + 1, c, cols, "0x%llx ",
+ (u_longlong_t)val[i]);
+
+ c = fm_printf(d + 1, c, cols, "]");
+ break;
+ }
+
+ case DATA_TYPE_INT32_ARRAY: {
+ int32_t *val;
+ uint_t i, nelem;
+
+ c = fm_printf(d + 1, c, cols, "[ ");
+ (void) nvpair_value_int32_array(nvp, &val, &nelem);
+ for (i = 0; i < nelem; i++)
+ c = fm_printf(d + 1, c, cols, "0x%llx ",
+ (u_longlong_t)val[i]);
+
+ c = fm_printf(d + 1, c, cols, "]");
+ break;
+ }
+
+ case DATA_TYPE_UINT32_ARRAY: {
+ uint32_t *val;
+ uint_t i, nelem;
+
+ c = fm_printf(d + 1, c, cols, "[ ");
+ (void) nvpair_value_uint32_array(nvp, &val, &nelem);
+ for (i = 0; i < nelem; i++)
+ c = fm_printf(d + 1, c, cols, "0x%llx ",
+ (u_longlong_t)val[i]);
+
+ c = fm_printf(d + 1, c, cols, "]");
+ break;
+ }
+
+ case DATA_TYPE_INT64_ARRAY: {
+ int64_t *val;
+ uint_t i, nelem;
+
+ c = fm_printf(d + 1, c, cols, "[ ");
+ (void) nvpair_value_int64_array(nvp, &val, &nelem);
+ for (i = 0; i < nelem; i++)
+ c = fm_printf(d + 1, c, cols, "0x%llx ",
+ (u_longlong_t)val[i]);
+
+ c = fm_printf(d + 1, c, cols, "]");
+ break;
+ }
+
+ case DATA_TYPE_UINT64_ARRAY: {
+ uint64_t *val;
+ uint_t i, nelem;
+
+ c = fm_printf(d + 1, c, cols, "[ ");
+ (void) nvpair_value_uint64_array(nvp, &val, &nelem);
+ for (i = 0; i < nelem; i++)
+ c = fm_printf(d + 1, c, cols, "0x%llx ",
+ (u_longlong_t)val[i]);
+
+ c = fm_printf(d + 1, c, cols, "]");
+ break;
+ }
+
+ case DATA_TYPE_STRING_ARRAY:
case DATA_TYPE_BOOLEAN_ARRAY:
case DATA_TYPE_BYTE_ARRAY:
- case DATA_TYPE_INT8_ARRAY:
- case DATA_TYPE_UINT8_ARRAY:
- case DATA_TYPE_INT16_ARRAY:
- case DATA_TYPE_UINT16_ARRAY:
- case DATA_TYPE_INT32_ARRAY:
- case DATA_TYPE_UINT32_ARRAY:
- case DATA_TYPE_INT64_ARRAY:
- case DATA_TYPE_UINT64_ARRAY:
- case DATA_TYPE_STRING_ARRAY:
c = fm_printf(d + 1, c, cols, "[...]");
break;
+
case DATA_TYPE_UNKNOWN:
c = fm_printf(d + 1, c, cols, "<unknown>");
break;
char *class;
int c = 0;
- console_printf("\r");
+ console_printf("\n");
if (nvlist_lookup_string(nvl, FM_CLASS, &class) == 0)
- c = fm_printf(0, c, ereport_cols, "%s", class);
+ c = fm_printf(0, c, zfs_zevent_cols, "%s", class);
- if (fm_nvprintr(nvl, 0, c, ereport_cols) != 0)
+ if (fm_nvprintr(nvl, 0, c, zfs_zevent_cols) != 0)
console_printf("\n");
console_printf("\n");
}
+static zevent_t *
+zfs_zevent_alloc(void)
+{
+ zevent_t *ev;
+
+ ev = kmem_zalloc(sizeof(zevent_t), KM_PUSHPAGE);
+ if (ev == NULL)
+ return NULL;
+
+ list_create(&ev->ev_ze_list, sizeof(zfs_zevent_t),
+ offsetof(zfs_zevent_t, ze_node));
+ list_link_init(&ev->ev_node);
+
+ return ev;
+}
+
+static void
+zfs_zevent_free(zevent_t *ev)
+{
+ /* Run provided cleanup callback */
+ ev->ev_cb(ev->ev_nvl, ev->ev_detector);
+
+ list_destroy(&ev->ev_ze_list);
+ kmem_free(ev, sizeof(zevent_t));
+}
+
+static void
+zfs_zevent_drain(zevent_t *ev)
+{
+ zfs_zevent_t *ze;
+
+ ASSERT(MUTEX_HELD(&zevent_lock));
+ list_remove(&zevent_list, ev);
+
+ /* Remove references to this event in all private file data */
+ while ((ze = list_head(&ev->ev_ze_list)) != NULL) {
+ list_remove(&ev->ev_ze_list, ze);
+ ze->ze_zevent = NULL;
+ ze->ze_dropped++;
+ }
+
+ zfs_zevent_free(ev);
+}
+
+void
+zfs_zevent_drain_all(int *count)
+{
+ zevent_t *ev;
+
+ mutex_enter(&zevent_lock);
+ while ((ev = list_head(&zevent_list)) != NULL)
+ zfs_zevent_drain(ev);
+
+ *count = zevent_len_cur;
+ zevent_len_cur = 0;
+ mutex_exit(&zevent_lock);
+}
+
/*
- * Wrapper for panic() that first produces an FMA-style message for admins.
- * Normally such messages are generated by fmd(1M)'s syslog-msgs agent: this
- * is the one exception to that rule and the only error that gets messaged.
- * This function is intended for use by subsystems that have detected a fatal
- * error and enqueued appropriate ereports and wish to then force a panic.
+ * New zevents are inserted at the head. If the maximum queue
+ * length is exceeded a zevent will be drained from the tail.
+ * As part of this any user space processes which currently have
+ * a reference to this zevent_t in their private data will have
+ * this reference set to NULL.
*/
-/*PRINTFLIKE1*/
-void
-fm_panic(const char *format, ...)
+static void
+zfs_zevent_insert(zevent_t *ev)
{
- va_list ap;
+ ASSERT(MUTEX_HELD(&zevent_lock));
+ list_insert_head(&zevent_list, ev);
- (void) casptr((void *)&fm_panicstr, NULL, (void *)format);
- va_start(ap, format);
- vpanic(format, ap);
- va_end(ap);
+ if (zevent_len_cur >= zfs_zevent_len_max)
+ zfs_zevent_drain(list_tail(&zevent_list));
+ else
+ zevent_len_cur++;
}
/*
- * Print any appropriate FMA banner message before the panic message. This
- * function is called by panicsys() and prints the message for fm_panic().
- * We print the message here so that it comes after the system is quiesced.
- * A one-line summary is recorded in the log only (cmn_err(9F) with "!" prefix).
- * The rest of the message is for the console only and not needed in the log,
- * so it is printed using console_printf(). We break it up into multiple
- * chunks so as to avoid overflowing any small legacy prom_printf() buffers.
+ * Post a zevent
*/
void
-fm_banner(void)
+zfs_zevent_post(nvlist_t *nvl, nvlist_t *detector, zevent_cb_t *cb)
{
- timespec_t tod;
- hrtime_t now;
+ int64_t tv_array[2];
+ timestruc_t tv;
+ size_t nvl_size = 0;
+ zevent_t *ev;
- if (!fm_panicstr)
- return; /* panic was not initiated by fm_panic(); do nothing */
+ gethrestime(&tv);
+ tv_array[0] = tv.tv_sec;
+ tv_array[1] = tv.tv_nsec;
+ if (nvlist_add_int64_array(nvl, FM_EREPORT_TIME, tv_array, 2)) {
+ atomic_add_64(&erpt_kstat_data.erpt_set_failed.value.ui64, 1);
+ return;
+ }
- if (panicstr) {
- tod = panic_hrestime;
- now = panic_hrtime;
- } else {
- gethrestime(&tod);
- now = gethrtime_waitfree();
+ (void) nvlist_size(nvl, &nvl_size, NV_ENCODE_NATIVE);
+ if (nvl_size > ERPT_DATA_SZ || nvl_size == 0) {
+ atomic_add_64(&erpt_kstat_data.erpt_dropped.value.ui64, 1);
+ return;
}
- cmn_err(CE_NOTE, "!SUNW-MSG-ID: %s, "
- "TYPE: Error, VER: 1, SEVERITY: Major\n", fm_msgid);
+ if (zfs_zevent_console)
+ fm_nvprint(nvl);
- console_printf(
-"\n\rSUNW-MSG-ID: %s, TYPE: Error, VER: 1, SEVERITY: Major\n"
-"EVENT-TIME: 0x%lx.0x%lx (0x%llx)\n",
- fm_msgid, tod.tv_sec, tod.tv_nsec, (u_longlong_t)now);
+ ev = zfs_zevent_alloc();
+ if (ev == NULL) {
+ atomic_add_64(&erpt_kstat_data.erpt_dropped.value.ui64, 1);
+ return;
+ }
- console_printf(
-"PLATFORM: %s, CSN: -, HOSTNAME: %s\n"
-"SOURCE: %s, REV: %s %s\n",
- platform, utsname.nodename, utsname.sysname,
- utsname.release, utsname.version);
+ ev->ev_nvl = nvl;
+ ev->ev_detector = detector;
+ ev->ev_cb = cb;
- console_printf(
-"DESC: Errors have been detected that require a reboot to ensure system\n"
-"integrity. See %s/%s for more information.\n",
- fm_url, fm_msgid);
+ mutex_enter(&zevent_lock);
+ zfs_zevent_insert(ev);
+ cv_broadcast(&zevent_cv);
+ mutex_exit(&zevent_lock);
+}
- console_printf(
-"AUTO-RESPONSE: Solaris will attempt to save and diagnose the error telemetry\n"
-"IMPACT: The system will sync files, save a crash dump if needed, and reboot\n"
-"REC-ACTION: Save the error summary below in case telemetry cannot be saved\n");
+static int
+zfs_zevent_minor_to_state(minor_t minor, zfs_zevent_t **ze)
+{
+ *ze = zfsdev_get_state(minor, ZST_ZEVENT);
+ if (*ze == NULL)
+ return (EBADF);
- console_printf("\n");
+ return (0);
+}
+
+int
+zfs_zevent_fd_hold(int fd, minor_t *minorp, zfs_zevent_t **ze)
+{
+ file_t *fp;
+ int error;
+
+ fp = getf(fd);
+ if (fp == NULL)
+ return (EBADF);
+
+ *minorp = zfsdev_getminor(fp->f_file);
+ error = zfs_zevent_minor_to_state(*minorp, ze);
+
+ if (error)
+ zfs_zevent_fd_rele(fd);
+
+ return (error);
+}
+
+void
+zfs_zevent_fd_rele(int fd)
+{
+ releasef(fd);
}
/*
- * Utility function to write all of the pending ereports to the dump device.
- * This function is called at either normal reboot or panic time, and simply
- * iterates over the in-transit messages in the ereport sysevent channel.
+ * Get the next zevent in the stream and place a copy in 'event'. This
+ * may fail with ENOMEM if the encoded nvlist size exceeds the passed
+ * 'event_size'. In this case the stream pointer is not advanced and
+ * and 'event_size' is set to the minimum required buffer size.
*/
-void
-fm_ereport_dump(void)
+int
+zfs_zevent_next(zfs_zevent_t *ze, nvlist_t **event, uint64_t *event_size,
+ uint64_t *dropped)
{
- evchanq_t *chq;
- sysevent_t *sep;
- erpt_dump_t ed;
-
- timespec_t tod;
- hrtime_t now;
- char *buf;
- size_t len;
-
- if (panicstr) {
- tod = panic_hrestime;
- now = panic_hrtime;
+ zevent_t *ev;
+ size_t size;
+ int error = 0;
+
+ mutex_enter(&zevent_lock);
+ if (ze->ze_zevent == NULL) {
+ /* New stream start at the beginning/tail */
+ ev = list_tail(&zevent_list);
+ if (ev == NULL) {
+ error = ENOENT;
+ goto out;
+ }
} else {
- if (ereport_errorq != NULL)
- errorq_drain(ereport_errorq);
- gethrestime(&tod);
- now = gethrtime_waitfree();
+ /* Existing stream continue with the next element and remove
+ * ourselves from the wait queue for the previous element */
+ ev = list_prev(&zevent_list, ze->ze_zevent);
+ if (ev == NULL) {
+ error = ENOENT;
+ goto out;
+ }
}
- /*
- * In the panic case, sysevent_evc_walk_init() will return NULL.
- */
- if ((chq = sysevent_evc_walk_init(ereport_chan, NULL)) == NULL &&
- !panicstr)
- return; /* event channel isn't initialized yet */
+ VERIFY(nvlist_size(ev->ev_nvl, &size, NV_ENCODE_NATIVE) == 0);
+ if (size > *event_size) {
+ *event_size = size;
+ error = ENOMEM;
+ goto out;
+ }
- while ((sep = sysevent_evc_walk_step(chq)) != NULL) {
- if ((buf = sysevent_evc_event_attr(sep, &len)) == NULL)
- break;
+ if (ze->ze_zevent)
+ list_remove(&ze->ze_zevent->ev_ze_list, ze);
+
+ ze->ze_zevent = ev;
+ list_insert_head(&ev->ev_ze_list, ze);
+ nvlist_dup(ev->ev_nvl, event, KM_SLEEP);
+ *dropped = ze->ze_dropped;
+ ze->ze_dropped = 0;
+out:
+ mutex_exit(&zevent_lock);
+
+ return error;
+}
- ed.ed_magic = ERPT_MAGIC;
- ed.ed_chksum = checksum32(buf, len);
- ed.ed_size = (uint32_t)len;
- ed.ed_pad = 0;
- ed.ed_hrt_nsec = SE_TIME(sep);
- ed.ed_hrt_base = now;
- ed.ed_tod_base.sec = tod.tv_sec;
- ed.ed_tod_base.nsec = tod.tv_nsec;
-
- dumpvp_write(&ed, sizeof (ed));
- dumpvp_write(buf, len);
+int
+zfs_zevent_wait(zfs_zevent_t *ze)
+{
+ int error = 0;
+
+ mutex_enter(&zevent_lock);
+
+ if (zevent_flags & ZEVENT_SHUTDOWN) {
+ error = ESHUTDOWN;
+ goto out;
}
- sysevent_evc_walk_fini(chq);
+ zevent_waiters++;
+ cv_wait_interruptible(&zevent_cv, &zevent_lock);
+ if (issig(JUSTLOOKING))
+ error = EINTR;
+
+ zevent_waiters--;
+out:
+ mutex_exit(&zevent_lock);
+
+ return error;
}
-/*
- * Post an error report (ereport) to the sysevent error channel. The error
- * channel must be established with a prior call to sysevent_evc_create()
- * before publication may occur.
- */
void
-fm_ereport_post(nvlist_t *ereport, int evc_flag)
+zfs_zevent_init(zfs_zevent_t **zep)
{
- size_t nvl_size = 0;
- evchan_t *error_chan;
+ zfs_zevent_t *ze;
- (void) nvlist_size(ereport, &nvl_size, NV_ENCODE_NATIVE);
- if (nvl_size > ERPT_DATA_SZ || nvl_size == 0) {
- atomic_add_64(&erpt_kstat_data.erpt_dropped.value.ui64, 1);
- return;
- }
+ ze = *zep = kmem_zalloc(sizeof (zfs_zevent_t), KM_SLEEP);
+ list_link_init(&ze->ze_node);
+}
- if (sysevent_evc_bind(FM_ERROR_CHAN, &error_chan,
- EVCH_CREAT|EVCH_HOLD_PEND) != 0) {
- atomic_add_64(&erpt_kstat_data.erpt_dropped.value.ui64, 1);
- return;
- }
+void
+zfs_zevent_destroy(zfs_zevent_t *ze)
+{
+ mutex_enter(&zevent_lock);
+ if (ze->ze_zevent)
+ list_remove(&ze->ze_zevent->ev_ze_list, ze);
+ mutex_exit(&zevent_lock);
- if (sysevent_evc_publish(error_chan, EC_FM, ESC_FM_ERROR,
- SUNW_VENDOR, FM_PUB, ereport, evc_flag) != 0) {
- atomic_add_64(&erpt_kstat_data.erpt_dropped.value.ui64, 1);
- sysevent_evc_unbind(error_chan);
- return;
- }
- sysevent_evc_unbind(error_chan);
+ kmem_free(ze, sizeof (zfs_zevent_t));
}
+#endif /* _KERNEL */
/*
* Wrapppers for FM nvlist allocators
static void *
i_fm_alloc(nv_alloc_t *nva, size_t size)
{
- return (kmem_zalloc(size, KM_SLEEP));
+ return (kmem_zalloc(size, KM_PUSHPAGE));
}
/* ARGSUSED */
nv_alloc_t *nvhdl;
if (nva == NULL) {
- nvhdl = kmem_zalloc(sizeof (nv_alloc_t), KM_SLEEP);
+ nvhdl = kmem_zalloc(sizeof (nv_alloc_t), KM_PUSHPAGE);
if (nv_alloc_init(nvhdl, &fm_mem_alloc_ops, NULL, 0) != 0) {
kmem_free(nvhdl, sizeof (nv_alloc_t));
if (nvlist_xalloc(&nvl, NV_UNIQUE_NAME, nvhdl) != 0) {
if (hdl_alloced) {
- kmem_free(nvhdl, sizeof (nv_alloc_t));
nv_alloc_fini(nvhdl);
+ kmem_free(nvhdl, sizeof (nv_alloc_t));
}
return (NULL);
}
* detector nvlist_t <detector>
* ereport-payload nvlist_t <var args>
*
+ * We don't actually add a 'version' member to the payload. Really,
+ * the version quoted to us by our caller is that of the category 1
+ * "ereport" event class (and we require FM_EREPORT_VERS0) but
+ * the payload version of the actual leaf class event under construction
+ * may be something else. Callers should supply a version in the varargs,
+ * or (better) we could take two version arguments - one for the
+ * ereport category 1 classification (expect FM_EREPORT_VERS0) and one
+ * for the leaf class.
*/
void
fm_ereport_set(nvlist_t *ereport, int version, const char *erpt_class,
}
}
+void
+fm_fmri_hc_create(nvlist_t *fmri, int version, const nvlist_t *auth,
+ nvlist_t *snvl, nvlist_t *bboard, int npairs, ...)
+{
+ nv_alloc_t *nva = nvlist_lookup_nv_alloc(fmri);
+ nvlist_t *pairs[HC_MAXPAIRS];
+ nvlist_t **hcl;
+ uint_t n;
+ int i, j;
+ va_list ap;
+ char *hcname, *hcid;
+
+ if (!fm_fmri_hc_set_common(fmri, version, auth))
+ return;
+
+ /*
+ * copy the bboard nvpairs to the pairs array
+ */
+ if (nvlist_lookup_nvlist_array(bboard, FM_FMRI_HC_LIST, &hcl, &n)
+ != 0) {
+ atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
+ return;
+ }
+
+ for (i = 0; i < n; i++) {
+ if (nvlist_lookup_string(hcl[i], FM_FMRI_HC_NAME,
+ &hcname) != 0) {
+ atomic_add_64(
+ &erpt_kstat_data.fmri_set_failed.value.ui64, 1);
+ return;
+ }
+ if (nvlist_lookup_string(hcl[i], FM_FMRI_HC_ID, &hcid) != 0) {
+ atomic_add_64(
+ &erpt_kstat_data.fmri_set_failed.value.ui64, 1);
+ return;
+ }
+
+ pairs[i] = fm_nvlist_create(nva);
+ if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, hcname) != 0 ||
+ nvlist_add_string(pairs[i], FM_FMRI_HC_ID, hcid) != 0) {
+ for (j = 0; j <= i; j++) {
+ if (pairs[j] != NULL)
+ fm_nvlist_destroy(pairs[j],
+ FM_NVA_RETAIN);
+ }
+ atomic_add_64(
+ &erpt_kstat_data.fmri_set_failed.value.ui64, 1);
+ return;
+ }
+ }
+
+ /*
+ * create the pairs from passed in pairs
+ */
+ npairs = MIN(npairs, HC_MAXPAIRS);
+
+ va_start(ap, npairs);
+ for (i = n; i < npairs + n; i++) {
+ const char *name = va_arg(ap, const char *);
+ uint32_t id = va_arg(ap, uint32_t);
+ char idstr[11];
+ (void) snprintf(idstr, sizeof (idstr), "%u", id);
+ pairs[i] = fm_nvlist_create(nva);
+ if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, name) != 0 ||
+ nvlist_add_string(pairs[i], FM_FMRI_HC_ID, idstr) != 0) {
+ for (j = 0; j <= i; j++) {
+ if (pairs[j] != NULL)
+ fm_nvlist_destroy(pairs[j],
+ FM_NVA_RETAIN);
+ }
+ atomic_add_64(
+ &erpt_kstat_data.fmri_set_failed.value.ui64, 1);
+ return;
+ }
+ }
+ va_end(ap);
+
+ /*
+ * Create the fmri hc list
+ */
+ if (nvlist_add_nvlist_array(fmri, FM_FMRI_HC_LIST, pairs,
+ npairs + n) != 0) {
+ atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
+ return;
+ }
+
+ for (i = 0; i < npairs + n; i++) {
+ fm_nvlist_destroy(pairs[i], FM_NVA_RETAIN);
+ }
+
+ if (snvl != NULL) {
+ if (nvlist_add_nvlist(fmri, FM_FMRI_HC_SPECIFIC, snvl) != 0) {
+ atomic_add_64(
+ &erpt_kstat_data.fmri_set_failed.value.ui64, 1);
+ return;
+ }
+ }
+}
+
/*
* Set-up and validate the members of an dev fmri according to:
*
* version uint8_t 0
* auth nvlist_t <auth>
* devpath string <devpath>
- * devid string <devid>
+ * [devid] string <devid>
+ * [target-port-l0id] string <target-port-lun0-id>
*
* Note that auth and devid are optional members.
*/
void
fm_fmri_dev_set(nvlist_t *fmri_dev, int version, const nvlist_t *auth,
- const char *devpath, const char *devid)
+ const char *devpath, const char *devid, const char *tpl0)
{
- if (version != DEV_SCHEME_VERSION0) {
- atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
- return;
- }
+ int err = 0;
- if (nvlist_add_uint8(fmri_dev, FM_VERSION, version) != 0) {
+ if (version != DEV_SCHEME_VERSION0) {
atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
return;
}
- if (nvlist_add_string(fmri_dev, FM_FMRI_SCHEME,
- FM_FMRI_SCHEME_DEV) != 0) {
- atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
- return;
- }
+ err |= nvlist_add_uint8(fmri_dev, FM_VERSION, version);
+ err |= nvlist_add_string(fmri_dev, FM_FMRI_SCHEME, FM_FMRI_SCHEME_DEV);
if (auth != NULL) {
- if (nvlist_add_nvlist(fmri_dev, FM_FMRI_AUTHORITY,
- (nvlist_t *)auth) != 0) {
- atomic_add_64(
- &erpt_kstat_data.fmri_set_failed.value.ui64, 1);
- }
+ err |= nvlist_add_nvlist(fmri_dev, FM_FMRI_AUTHORITY,
+ (nvlist_t *)auth);
}
- if (nvlist_add_string(fmri_dev, FM_FMRI_DEV_PATH, devpath) != 0) {
- atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
- }
+ err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_PATH, devpath);
if (devid != NULL)
- if (nvlist_add_string(fmri_dev, FM_FMRI_DEV_ID, devid) != 0)
- atomic_add_64(
- &erpt_kstat_data.fmri_set_failed.value.ui64, 1);
+ err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_ID, devid);
+
+ if (tpl0 != NULL)
+ err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_TGTPTLUN0, tpl0);
+
+ if (err)
+ atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1);
+
}
/*
ena = (uint64_t)((format & ENA_FORMAT_MASK) |
((cpuid << ENA_FMT1_CPUID_SHFT) &
ENA_FMT1_CPUID_MASK) |
- ((gethrtime_waitfree() << ENA_FMT1_TIME_SHFT) &
+ ((gethrtime() << ENA_FMT1_TIME_SHFT) &
ENA_FMT1_TIME_MASK));
}
break;
uint64_t
fm_ena_generate(uint64_t timestamp, uchar_t format)
{
- return (fm_ena_generate_cpu(timestamp, CPU->cpu_id, format));
+ uint64_t ena;
+
+ kpreempt_disable();
+ ena = fm_ena_generate_cpu(timestamp, getcpuid(), format);
+ kpreempt_enable();
+
+ return (ena);
}
uint64_t
return (time);
}
-/*
- * Convert a getpcstack() trace to symbolic name+offset, and add the resulting
- * string array to a Fault Management ereport as FM_EREPORT_PAYLOAD_NAME_STACK.
- */
+#ifdef _KERNEL
void
-fm_payload_stack_add(nvlist_t *payload, const pc_t *stack, int depth)
+fm_init(void)
{
- int i;
- char *sym;
- ulong_t off;
- char *stkpp[FM_STK_DEPTH];
- char buf[FM_STK_DEPTH * FM_SYM_SZ];
- char *stkp = buf;
-
- for (i = 0; i < depth && i != FM_STK_DEPTH; i++, stkp += FM_SYM_SZ) {
- if ((sym = kobj_getsymname(stack[i], &off)) != NULL)
- (void) snprintf(stkp, FM_SYM_SZ, "%s+%lx", sym, off);
- else
- (void) snprintf(stkp, FM_SYM_SZ, "%lx", (long)stack[i]);
- stkpp[i] = stkp;
+ zevent_len_cur = 0;
+ zevent_flags = 0;
+
+ if (zfs_zevent_len_max == 0)
+ zfs_zevent_len_max = ERPT_MAX_ERRS * MAX(max_ncpus, 4);
+
+ /* Initialize zevent allocation and generation kstats */
+ fm_ksp = kstat_create("zfs", 0, "fm", "misc", KSTAT_TYPE_NAMED,
+ sizeof (struct erpt_kstat) / sizeof (kstat_named_t),
+ KSTAT_FLAG_VIRTUAL);
+
+ if (fm_ksp != NULL) {
+ fm_ksp->ks_data = &erpt_kstat_data;
+ kstat_install(fm_ksp);
+ } else {
+ cmn_err(CE_NOTE, "failed to create fm/misc kstat\n");
}
- fm_payload_set(payload, FM_EREPORT_PAYLOAD_NAME_STACK,
- DATA_TYPE_STRING_ARRAY, depth, stkpp, NULL);
+ mutex_init(&zevent_lock, NULL, MUTEX_DEFAULT, NULL);
+ list_create(&zevent_list, sizeof(zevent_t), offsetof(zevent_t, ev_node));
+ cv_init(&zevent_cv, NULL, CV_DEFAULT, NULL);
}
void
-print_msg_hwerr(ctid_t ct_id, proc_t *p)
+fm_fini(void)
{
- uprintf("Killed process %d (%s) in contract id %d "
- "due to hardware error\n", p->p_pid, p->p_user.u_comm, ct_id);
+ int count;
+
+ zfs_zevent_drain_all(&count);
+
+ mutex_enter(&zevent_lock);
+ cv_broadcast(&zevent_cv);
+
+ zevent_flags |= ZEVENT_SHUTDOWN;
+ while (zevent_waiters > 0) {
+ mutex_exit(&zevent_lock);
+ schedule();
+ mutex_enter(&zevent_lock);
+ }
+ mutex_exit(&zevent_lock);
+
+ cv_destroy(&zevent_cv);
+ list_destroy(&zevent_list);
+ mutex_destroy(&zevent_lock);
+
+ if (fm_ksp != NULL) {
+ kstat_delete(fm_ksp);
+ fm_ksp = NULL;
+ }
}
+
+module_param(zfs_zevent_len_max, int, 0644);
+MODULE_PARM_DESC(zfs_zevent_len_max, "Max event queue length");
+
+module_param(zfs_zevent_cols, int, 0644);
+MODULE_PARM_DESC(zfs_zevent_cols, "Max event column width");
+
+module_param(zfs_zevent_console, int, 0644);
+MODULE_PARM_DESC(zfs_zevent_console, "Log events to the console");
+
+#endif /* _KERNEL */
git://git.camperquake.de / zfs.git / blobdiff