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OpenZFS 7277 - zdb should be able to print zfs_dbgmsg's

Browse Source 
Porting notes:
- 'zfs_dbgmsg_print()' reintroduced to userspace.

Authored by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Ported-by: George Melikov <mail@gmelikov.ru>

OpenZFS-issue: https://www.illumos.org/issues/7277
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/29bdd2f
Closes #5684
This commit is contained in:
George Melikov
2017-01-28 23:16:43 +03:00
committed by Brian Behlendorf
parent a32494d22a
commit fa603f8233
4 changed files with 52 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
cmd/zdb/zdb.c
+22 -4
View File
@@ -21,7 +21,7 @@
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011, 2015 by Delphix. All rights reserved.
* Copyright (c) 2011, 2016 by Delphix. All rights reserved.
* Copyright (c) 2015, Intel Corporation.
*/
@@ -126,7 +126,7 @@ static void
usage(void)
{
(void) fprintf(stderr,
"Usage: %s [-CumMdibcsDvhLXFPA] [-t txg] [-e [-p path...]] "
"Usage: %s [-CumMdibcsDvhLXFPAG] [-t txg] [-e [-p path...]] "
"[-U config] [-I inflight I/Os] [-x dumpdir] poolname [object...]\n"
" %s [-divPA] [-e -p path...] [-U config] dataset "
"[object...]\n"
@@ -187,12 +187,23 @@ usage(void)
(void) fprintf(stderr, " -I <number of inflight I/Os> -- "
"specify the maximum number of "
"checksumming I/Os [default is 200]\n");
(void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before "
"exiting\n");
(void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
"to make only that option verbose\n");
(void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
exit(1);
}
static void
dump_debug_buffer(void)
{
if (dump_opt['G']) {
(void) printf("\n");
zfs_dbgmsg_print("zdb");
}
}
/*
* Called for usage errors that are discovered after a call to spa_open(),
* dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
@@ -209,6 +220,8 @@ fatal(const char *fmt, ...)
va_end(ap);
(void) fprintf(stderr, "\n");
dump_debug_buffer();
exit(1);
}
@@ -3197,8 +3210,10 @@ dump_zpool(spa_t *spa)
if (dump_opt['h'])
dump_history(spa);
if (rc != 0)
if (rc != 0) {
dump_debug_buffer();
exit(rc);
}
}
#define ZDB_FLAG_CHECKSUM 0x0001
@@ -3692,7 +3707,7 @@ main(int argc, char **argv)
spa_config_path = spa_config_path_env;
while ((c = getopt(argc, argv,
"bcdhilmMI:suCDRSAFLXx:evp:t:U:PV")) != -1) {
"bcdhilmMI:suCDRSAFLXx:evp:t:U:PVG")) != -1) {
switch (c) {
case 'b':
case 'c':
@@ -3708,6 +3723,7 @@ main(int argc, char **argv)
case 'M':
case 'R':
case 'S':
case 'G':
dump_opt[c]++;
dump_all = 0;
break;
@@ -3939,6 +3955,8 @@ main(int argc, char **argv)
fuid_table_destroy();
sa_loaded = B_FALSE;
dump_debug_buffer();
libzfs_fini(g_zfs);
kernel_fini();