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-rw-r--r--src/debug.c138
1 files changed, 114 insertions, 24 deletions
diff --git a/src/debug.c b/src/debug.c
index 756c194..5f21f02 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -46,6 +46,7 @@
#include <haproxy/thread.h>
#include <haproxy/time.h>
#include <haproxy/tools.h>
+#include <haproxy/trace.h>
#include <import/ist.h>
@@ -112,7 +113,7 @@ struct post_mortem {
uid_t boot_uid;
gid_t boot_gid;
struct rlimit limit_fd; // RLIMIT_NOFILE
- struct rlimit limit_ram; // RLIMIT_AS or RLIMIT_DATA
+ struct rlimit limit_ram; // RLIMIT_DATA
#if defined(USE_THREAD)
struct {
@@ -456,13 +457,8 @@ void ha_task_dump(struct buffer *buf, const struct task *task, const char *pfx)
*/
static int cli_io_handler_show_threads(struct appctx *appctx)
{
- struct stconn *sc = appctx_sc(appctx);
int thr;
- /* FIXME: Don't watch the other side !*/
- if (unlikely(sc_opposite(sc)->flags & SC_FL_SHUT_DONE))
- return 1;
-
if (appctx->st0)
thr = appctx->st1;
else
@@ -666,7 +662,7 @@ int debug_parse_cli_bug(char **args, char *payload, struct appctx *appctx, void
return 1;
_HA_ATOMIC_INC(&debug_commands_issued);
- BUG_ON(one > zero);
+ BUG_ON(one > zero, "This was triggered on purpose from the CLI 'debug dev bug' command.");
return 1;
}
@@ -679,7 +675,7 @@ int debug_parse_cli_warn(char **args, char *payload, struct appctx *appctx, void
return 1;
_HA_ATOMIC_INC(&debug_commands_issued);
- WARN_ON(one > zero);
+ WARN_ON(one > zero, "This was triggered on purpose from the CLI 'debug dev warn' command.");
return 1;
}
@@ -692,7 +688,7 @@ int debug_parse_cli_check(char **args, char *payload, struct appctx *appctx, voi
return 1;
_HA_ATOMIC_INC(&debug_commands_issued);
- CHECK_IF(one > zero);
+ CHECK_IF(one > zero, "This was triggered on purpose from the CLI 'debug dev check' command.");
return 1;
}
@@ -1504,6 +1500,112 @@ static int debug_parse_cli_sched(char **args, char *payload, struct appctx *appc
return cli_err(appctx, "Not enough memory");
}
+#if defined(DEBUG_DEV)
+/* All of this is for "trace dbg" */
+
+static struct trace_source trace_dbg __read_mostly = {
+ .name = IST("dbg"),
+ .desc = "trace debugger",
+ .report_events = ~0, // report everything by default
+};
+
+#define TRACE_SOURCE &trace_dbg
+INITCALL1(STG_REGISTER, trace_register_source, TRACE_SOURCE);
+
+/* This is the task handler used to send traces in loops. Note that the task's
+ * context contains the number of remaining calls to be done. The task sends 20
+ * messages per wakeup.
+ */
+static struct task *debug_trace_task(struct task *t, void *ctx, unsigned int state)
+{
+ ulong count;
+
+ /* send 2 traces enter/leave +18 devel = 20 traces total */
+ TRACE_ENTER(1);
+ TRACE_DEVEL("msg01 has 20 bytes .", 1);
+ TRACE_DEVEL("msg02 has 20 bytes .", 1);
+ TRACE_DEVEL("msg03 has 20 bytes .", 1);
+ TRACE_DEVEL("msg04 has 70 bytes payload: 0123456789 0123456789 0123456789 012345678", 1);
+ TRACE_DEVEL("msg05 has 70 bytes payload: 0123456789 0123456789 0123456789 012345678", 1);
+ TRACE_DEVEL("msg06 has 70 bytes payload: 0123456789 0123456789 0123456789 012345678", 1);
+ TRACE_DEVEL("msg07 has 120 bytes payload: 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 012", 1);
+ TRACE_DEVEL("msg08 has 120 bytes payload: 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 012", 1);
+ TRACE_DEVEL("msg09 has 120 bytes payload: 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 012", 1);
+ TRACE_DEVEL("msg10 has 170 bytes payload: 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 012345678", 1);
+ TRACE_DEVEL("msg11 has 170 bytes payload: 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 012345678", 1);
+ TRACE_DEVEL("msg12 has 170 bytes payload: 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 012345678", 1);
+ TRACE_DEVEL("msg13 has 220 bytes payload: 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123", 1);
+ TRACE_DEVEL("msg14 has 220 bytes payload: 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123", 1);
+ TRACE_DEVEL("msg15 has 220 bytes payload: 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123", 1);
+ TRACE_DEVEL("msg16 has 270 bytes payload: 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789", 1);
+ TRACE_DEVEL("msg17 has 270 bytes payload: 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789", 1);
+ TRACE_DEVEL("msg18 has 270 bytes payload: 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789", 1);
+ TRACE_LEAVE(1);
+
+ count = (ulong)t->context;
+ t->context = (void*)count - 1;
+
+ if (count)
+ task_wakeup(t, TASK_WOKEN_MSG);
+ else {
+ task_destroy(t);
+ t = NULL;
+ }
+ return t;
+}
+
+/* parse a "debug dev trace" command
+ * debug dev trace <nbthr>.
+ * It will create as many tasks (one per thread), starting from lowest threads.
+ * The traces will stop after 1M wakeups or 20M messages ~= 4GB of data.
+ */
+static int debug_parse_cli_trace(char **args, char *payload, struct appctx *appctx, void *private)
+{
+ unsigned long count = 1;
+ unsigned long i;
+ char *msg = NULL;
+ char *endarg;
+
+ if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
+ return 1;
+
+ _HA_ATOMIC_INC(&debug_commands_issued);
+
+ if (!args[3][0]) {
+ memprintf(&msg, "Need a thread count. Note that 20M msg will be sent per thread.\n");
+ goto fail;
+ }
+
+ /* parse the new value . */
+ count = strtoll(args[3], &endarg, 0);
+ if (args[3][1] && *endarg) {
+ memprintf(&msg, "Ignoring unparsable thread number '%s'.\n", args[3]);
+ goto fail;
+ }
+
+ if (count >= global.nbthread)
+ count = global.nbthread;
+
+ for (i = 0; i < count; i++) {
+ struct task *task = task_new_on(i);
+
+ if (!task)
+ goto fail;
+
+ task->process = debug_trace_task;
+ task->context = (void*)(ulong)1000000; // 1M wakeups = 20M messages
+ task_wakeup(task, TASK_WOKEN_INIT);
+ }
+
+ if (msg && *msg)
+ return cli_dynmsg(appctx, LOG_INFO, msg);
+ return 1;
+
+ fail:
+ return cli_dynmsg(appctx, LOG_ERR, msg);
+}
+#endif /* DEBUG_DEV */
+
/* CLI state for "debug dev fd" */
struct dev_fd_ctx {
int start_fd;
@@ -1531,7 +1633,6 @@ static int debug_parse_cli_fd(char **args, char *payload, struct appctx *appctx,
static int debug_iohandler_fd(struct appctx *appctx)
{
struct dev_fd_ctx *ctx = appctx->svcctx;
- struct stconn *sc = appctx_sc(appctx);
struct sockaddr_storage sa;
struct stat statbuf;
socklen_t salen, vlen;
@@ -1540,10 +1641,6 @@ static int debug_iohandler_fd(struct appctx *appctx)
int ret = 1;
int i, fd;
- /* FIXME: Don't watch the other side !*/
- if (unlikely(sc_opposite(sc)->flags & SC_FL_SHUT_DONE))
- goto end;
-
chunk_reset(&trash);
thread_isolate();
@@ -1693,7 +1790,6 @@ static int debug_iohandler_fd(struct appctx *appctx)
}
thread_release();
- end:
return ret;
}
@@ -1763,15 +1859,10 @@ static int debug_parse_cli_memstats(char **args, char *payload, struct appctx *a
static int debug_iohandler_memstats(struct appctx *appctx)
{
struct dev_mem_ctx *ctx = appctx->svcctx;
- struct stconn *sc = appctx_sc(appctx);
struct mem_stats *ptr;
const char *pfx = ctx->match;
int ret = 1;
- /* FIXME: Don't watch the other side !*/
- if (unlikely(sc_opposite(sc)->flags & SC_FL_SHUT_DONE))
- goto end;
-
if (!ctx->width) {
/* we don't know the first column's width, let's compute it
* now based on a first pass on printable entries and their
@@ -2182,11 +2273,7 @@ static int feed_post_mortem()
post_mortem.process.boot_gid = getegid();
getrlimit(RLIMIT_NOFILE, &post_mortem.process.limit_fd);
-#if defined(RLIMIT_AS)
- getrlimit(RLIMIT_AS, &post_mortem.process.limit_ram);
-#elif defined(RLIMIT_DATA)
getrlimit(RLIMIT_DATA, &post_mortem.process.limit_ram);
-#endif
if (strcmp(post_mortem.platform.utsname.sysname, "Linux") == 0)
feed_post_mortem_linux();
@@ -2295,6 +2382,9 @@ static struct cli_kw_list cli_kws = {{ },{
{{ "debug", "dev", "sym", NULL }, "debug dev sym <addr> : resolve symbol address", debug_parse_cli_sym, NULL, NULL, NULL, ACCESS_EXPERT },
{{ "debug", "dev", "task", NULL }, "debug dev task <ptr> [wake|expire|kill] : show/wake/expire/kill task/tasklet", debug_parse_cli_task, NULL, NULL, NULL, ACCESS_EXPERT },
{{ "debug", "dev", "tkill", NULL }, "debug dev tkill [thr] [sig] : send signal to thread", debug_parse_cli_tkill, NULL, NULL, NULL, ACCESS_EXPERT },
+#if defined(DEBUG_DEV)
+ {{ "debug", "dev", "trace", NULL }, "debug dev trace [nbthr] : flood traces from that many threads", debug_parse_cli_trace, NULL, NULL, NULL, ACCESS_EXPERT },
+#endif
{{ "debug", "dev", "warn", NULL }, "debug dev warn : call WARN_ON() and possibly crash", debug_parse_cli_warn, NULL, NULL, NULL, ACCESS_EXPERT },
{{ "debug", "dev", "write", NULL }, "debug dev write [size] : write that many bytes in return", debug_parse_cli_write, NULL, NULL, NULL, ACCESS_EXPERT },
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-22 14:29:04 +0000