I experimented with adding a nanosleep after pthread_create() to
see if that would resolve the segfault issue - it does, but it
also exposed a new failure mode on -current. Every so often
the test program would not exit now. Thinking it may be related
to the detached threads I reworked the test program to use attached
threads and coordinated shutdown of them with pthread_join(). These
changes did not affect the new issue - every so often the main thread
exits after pthread_join() has been called on the created threads and
the program occasionally gets stuck with a number of threads still being
reported to egdb/ps etc. These threads should all be gone now since
pthread_join() has been called on all of them.
Here is the updated version of the program using attached threads and
a nanosleep() work-around to the original problem along with ps and egdb
output showing an example of a stuck process after the main thread exited.
======== startup.c ==================
#include <pthread.h>
#include <err.h>
#include <time.h>
typedef struct {
long t_num;
pthread_t t_pthread_id;
/* sync startup/shutdown */
long t_state;
pthread_mutex_t t_mutex;
pthread_cond_t t_cond_var;
} thread_t;
#define NTHREADS 40
thread_t threads[NTHREADS];
void
init_threads() {
long t_num;
for (t_num=0; t_num < NTHREADS; t_num++) {
threads[t_num].t_num = t_num;
threads[t_num].t_state = 0;
if (pthread_mutex_init(&threads[t_num].t_mutex, NULL) != 0)
err(1, "pthread_mutex_init failed");
if (pthread_cond_init(&threads[t_num].t_cond_var, NULL) != 0)
err(1, "pthread_cond_init failed");
}
}
void
complete_threads() {
long t_num;
for (t_num=0; t_num < NTHREADS; t_num++) {
pthread_mutex_lock(&threads[t_num].t_mutex);
threads[t_num].t_state = 2;
pthread_cond_broadcast(&threads[t_num].t_cond_var);
pthread_mutex_unlock(&threads[t_num].t_mutex);
}
for (t_num=0; t_num < NTHREADS; t_num++) {
if (pthread_join(threads[t_num].t_pthread_id, NULL) != 0)
err(1, "pthread_join failed");
}
}
void *
thread_start(thread_t *thread) {
pthread_mutex_lock(&thread->t_mutex);
thread->t_state = 1;
pthread_cond_broadcast(&thread->t_cond_var);
while (thread->t_state != 2)
pthread_cond_wait(&thread->t_cond_var, &thread->t_mutex);
pthread_mutex_unlock(&thread->t_mutex);
return(NULL);
}
void
create_thread(thread_t *thread) {
int ret = pthread_create(&thread->t_pthread_id, NULL, (void* (*)(void*))
thread_start, thread);
struct timespec timeout = { 0, 1000*1000L };
nanosleep(&timeout, NULL);
/* wait for thread startup */
pthread_mutex_lock(&thread->t_mutex);
while (thread->t_state == 0)
pthread_cond_wait(&thread->t_cond_var, &thread->t_mutex);
pthread_mutex_unlock(&thread->t_mutex);
}
int
main( int argc, char *argv[] )
{
long t_num;
init_threads();
/* startup threads */
for (t_num=0; t_num < NTHREADS; t_num++) {
create_thread(&threads[t_num]);
}
complete_threads();
return 0;
}
==============================
oracle$ ps -lp 88046
UID PID PPID CPU PRI NI VSZ RSS WCHAN STAT TT TIME COMMAND
1000 88046 89473 0 10 0 15400 1680 thrdeat D+ p0 0:00.52 ./startup
oracle$ ps -lHp 88046
UID PID PPID CPU PRI NI VSZ RSS WCHAN STAT TT TIME COMMAND
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.01 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.01 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
1000 88046 89473 0 10 0 15400 1680 fsleep I+ p0 0:00.02 ./startup
oracle$ doas egdb startup 88046
GNU gdb (GDB) 9.2
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "sparc64-unknown-openbsd7.4".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from startup...
Attaching to program: /home/truk/startup, process 88046
Reading symbols from /usr/lib/libc.so.97.1...
Reading symbols from /usr/libexec/ld.so...
[New thread 375080]
[New thread 623185]
[New thread 367953]
[New thread 232866]
[New thread 366574]
[New thread 493742]
[New thread 558951]
[New thread 258081]
[New thread 367867]
[New thread 245372]
[New thread 393196]
[New thread 157023]
[New thread 293058]
[New thread 447740]
[New thread 522513]
[New thread 410165]
[New thread 504404]
[New thread 574925]
[New thread 408929]
[New thread 322275]
[New thread 599412]
[New thread 595412]
[New thread 140208]
[New thread 130161]
[Switching to thread 169477]
0x000000c9a31994c8 in futex () at {standard input}:5
5 {standard input}: No such file or directory.
(gdb) thread apply all bt
Thread 25 (thread 130161):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef70c80) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef70c80, mutexp=0xc6db302430
<threads+984>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db302418 <threads+960>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc99e5ae638) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 24 (thread 140208):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef71e30) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef71e30, mutexp=0xc6db302408
<threads+944>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db3023f0 <threads+920>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc8ee96d038) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 23 (thread 595412):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef17d80) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef17d80, mutexp=0xc6db3023e0
<threads+904>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db3023c8 <threads+880>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc8ee96c838) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 22 (thread 599412):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef16fd0) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef16fd0, mutexp=0xc6db3023b8
<threads+864>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db3023a0 <threads+840>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc8ee96d838) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 21 (thread 322275):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef16750) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef16750, mutexp=0xc6db302390
<threads+824>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db302378 <threads+800>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc984059c38) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 20 (thread 408929):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef85f70) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef85f70, mutexp=0xc6db302368
<threads+784>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db302350 <threads+760>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc99e5afa38) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
--Type <RET> for more, q to quit, c to continue without paging--
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 19 (thread 574925):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef5a1c0) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef5a1c0, mutexp=0xc6db302340
<threads+744>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db302328 <threads+720>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc9989b6438) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 18 (thread 504404):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef5b2b0) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef5b2b0, mutexp=0xc6db302318
<threads+704>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db302300 <threads+680>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc9989b7038) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 17 (thread 410165):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef16980) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef16980, mutexp=0xc6db3022f0
<threads+664>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db3022d8 <threads+640>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc99e5ae238) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 16 (thread 522513):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef858e0) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef858e0, mutexp=0xc6db3022c8
<threads+624>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db3022b0 <threads+600>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc984058a38) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 15 (thread 447740):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef70b60) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef70b60, mutexp=0xc6db3022a0
<threads+584>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db302288 <threads+560>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc9989b6038) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 14 (thread 293058):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef70ed0) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef70ed0, mutexp=0xc6db302278
<threads+544>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db302260 <threads+520>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc99e5af038) at
/usr/src/lib/librthread/rthread.c:96
--Type <RET> for more, q to quit, c to continue without paging--
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 13 (thread 157023):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef70fc0) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef70fc0, mutexp=0xc6db302250
<threads+504>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db302238 <threads+480>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc99e5af638) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 12 (thread 393196):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef17360) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef17360, mutexp=0xc6db302228
<threads+464>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db302210 <threads+440>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc99e5ae038) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 11 (thread 245372):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef714c0) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef714c0, mutexp=0xc6db302200
<threads+424>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db3021e8 <threads+400>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc8ee96c638) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 10 (thread 367867):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef5bec0) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef5bec0, mutexp=0xc6db3021d8
<threads+384>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db3021c0 <threads+360>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc99e5aea38) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 9 (thread 258081):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef85890) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef85890, mutexp=0xc6db3021b0
<threads+344>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db302198 <threads+320>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc8ee96c238) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 8 (thread 558951):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef160e0) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef160e0, mutexp=0xc6db302188
<threads+304>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db302170 <threads+280>) at
startup.c:55
--Type <RET> for more, q to quit, c to continue without paging--
#4 0x000000c96b02eb70 in _rthread_start (v=0xc8ee96ca38) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 7 (thread 493742):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef70250) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef70250, mutexp=0xc6db302160
<threads+264>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db302148 <threads+240>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc8ee96de38) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 6 (thread 366574):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef85900) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef85900, mutexp=0xc6db302138
<threads+224>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db302120 <threads+200>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc9989b6c38) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 5 (thread 232866):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef16230) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef16230, mutexp=0xc6db302110
<threads+184>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db3020f8 <threads+160>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc99e5aee38) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 4 (thread 367953):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef17b50) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef17b50, mutexp=0xc6db3020e8
<threads+144>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db3020d0 <threads+120>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc99e5aec38) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 3 (thread 623185):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef5b210) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef5b210, mutexp=0xc6db3020c0
<threads+104>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db3020a8 <threads+80>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc8ee96c438) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 2 (thread 375080):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef5b820) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef5b820, mutexp=0xc6db302098
<threads+64>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
--Type <RET> for more, q to quit, c to continue without paging--
#3 0x000000c6db000a1c in thread_start (thread=0xc6db302080 <threads+40>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc9989b6838) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 1 (thread 169477):
#0 0x000000c9a31994c8 in futex () at {standard input}:5
#1 0x000000c9a318878c in _twait (abs=<optimized out>, clockid=<optimized out>,
val=<optimized out>, p=0xc96ef16c20) at /usr/src/lib/libc/thread/synch.h:55
#2 _rthread_cond_timedwait (cond=0xc96ef16c20, mutexp=0xc6db302070
<threads+24>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3 0x000000c6db000a1c in thread_start (thread=0xc6db302058 <threads>) at
startup.c:55
#4 0x000000c96b02eb70 in _rthread_start (v=0xc984058438) at
/usr/src/lib/librthread/rthread.c:96
#5 0x000000c9a314df6c in __tfork_thread () at
/usr/src/lib/libc/arch/sparc64/sys/tfork_thread.S:58
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb)
