* [Bug libc/16299] pthread_attr_setstacksize ignored
2013-12-06 20:33 [Bug libc/16299] New: pthread_attr_setstacksize ignored knielson at adaptivecomputing dot com
@ 2013-12-06 20:53 ` bugdal at aerifal dot cx
2013-12-06 21:10 ` knielson at adaptivecomputing dot com
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From: bugdal at aerifal dot cx @ 2013-12-06 20:53 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16299
Rich Felker <bugdal at aerifal dot cx> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |bugdal at aerifal dot cx
--- Comment #1 from Rich Felker <bugdal at aerifal dot cx> ---
Please submit a minimal test case and explain how you're measuring the stack
size. It's possible that you're also including the guard page
(pthread_attr_setguardsize could eliminate that) or including space reserved
for TLS as part of the stack (while it's adjacent in memory, it's not "stack"
and should not consume part of what you request with
pthread_attr_setstacksize).
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* [Bug libc/16299] pthread_attr_setstacksize ignored
2013-12-06 20:33 [Bug libc/16299] New: pthread_attr_setstacksize ignored knielson at adaptivecomputing dot com
2013-12-06 20:53 ` [Bug libc/16299] " bugdal at aerifal dot cx
@ 2013-12-06 21:10 ` knielson at adaptivecomputing dot com
2013-12-06 21:15 ` bugdal at aerifal dot cx
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From: knielson at adaptivecomputing dot com @ 2013-12-06 21:10 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16299
--- Comment #2 from Ken Nielson <knielson at adaptivecomputing dot com> ---
Following is a sample of the code we are using. I have removed some of the
ancillary code to help make it easier to see how we are using the pthread
library.
#define MINIMUM_STACK_SIZE 16777216
#define MAX_STACK_SIZE MINIMUM_STACK_SIZE * 2
/*extern int LOGLEVEL;*/
sigset_t fillset;
threadpool_t *request_pool;
static void *work_thread(void *);
int create_work_thread(void)
{
int rc;
sigset_t oldset;
pthread_t wthread;
pthread_attr_t attr;
size_t stack_size;
char log_buf[LOG_BUF_SIZE];
if ((rc = pthread_attr_init(&attr)) != 0)
{
sprintf(log_buf, "pthread_attr_init failed. errno %d. Could not start
worker thread", errno);
perror(log_buf);
log_err(-1, __func__, log_buf);
return(PBSE_SYSTEM);
}
pthread_attr_getstacksize(&attr, &stack_size);
if (stack_size < MINIMUM_STACK_SIZE)
stack_size = MINIMUM_STACK_SIZE;
if (stack_size > MAX_STACK_SIZE)
stack_size = MAX_STACK_SIZE;
pthread_attr_setstacksize(&attr, stack_size);
/* save old signal mask */
pthread_sigmask(SIG_SETMASK,&fillset,&oldset);
rc = pthread_create(&wthread,&request_pool->tp_attr,work_thread, &attr);
pthread_sigmask(SIG_SETMASK,&oldset,NULL);
return(rc);
} /* END create_work_thread() */
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* [Bug libc/16299] pthread_attr_setstacksize ignored
2013-12-06 20:33 [Bug libc/16299] New: pthread_attr_setstacksize ignored knielson at adaptivecomputing dot com
2013-12-06 20:53 ` [Bug libc/16299] " bugdal at aerifal dot cx
2013-12-06 21:10 ` knielson at adaptivecomputing dot com
@ 2013-12-06 21:15 ` bugdal at aerifal dot cx
2013-12-06 21:18 ` knielson at adaptivecomputing dot com
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From: bugdal at aerifal dot cx @ 2013-12-06 21:15 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16299
--- Comment #3 from Rich Felker <bugdal at aerifal dot cx> ---
And how are you measuring the resulting stack size?
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* [Bug libc/16299] pthread_attr_setstacksize ignored
2013-12-06 20:33 [Bug libc/16299] New: pthread_attr_setstacksize ignored knielson at adaptivecomputing dot com
` (2 preceding siblings ...)
2013-12-06 21:15 ` bugdal at aerifal dot cx
@ 2013-12-06 21:18 ` knielson at adaptivecomputing dot com
2013-12-06 21:32 ` knielson at adaptivecomputing dot com
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From: knielson at adaptivecomputing dot com @ 2013-12-06 21:18 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16299
--- Comment #4 from Ken Nielson <knielson at adaptivecomputing dot com> ---
We measure the size using the ps command. We use both ps -ef and I also use
ps -eo uid,pid,ppid,sess,user,c,stime,vsz,rss,cmd
We grep for our program which is pbs_mom in this case. We allocate two threads
and when the ulimit -s is set to 300000 we see the rss size increase by 300 meg
for each thread. When done our program is using over 600 meg of memory.
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* [Bug libc/16299] pthread_attr_setstacksize ignored
2013-12-06 20:33 [Bug libc/16299] New: pthread_attr_setstacksize ignored knielson at adaptivecomputing dot com
` (3 preceding siblings ...)
2013-12-06 21:18 ` knielson at adaptivecomputing dot com
@ 2013-12-06 21:32 ` knielson at adaptivecomputing dot com
2013-12-06 22:31 ` carlos at redhat dot com
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From: knielson at adaptivecomputing dot com @ 2013-12-06 21:32 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16299
--- Comment #5 from Ken Nielson <knielson at adaptivecomputing dot com> ---
I should point out that if the ulimit -s size is smaller then the rss size of
pbs_mom is also smaller. The ulimit -s 300000 makes it clear where the memory
is coming from.
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* [Bug libc/16299] pthread_attr_setstacksize ignored
2013-12-06 20:33 [Bug libc/16299] New: pthread_attr_setstacksize ignored knielson at adaptivecomputing dot com
` (4 preceding siblings ...)
2013-12-06 21:32 ` knielson at adaptivecomputing dot com
@ 2013-12-06 22:31 ` carlos at redhat dot com
2013-12-06 22:44 ` knielson at adaptivecomputing dot com
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From: carlos at redhat dot com @ 2013-12-06 22:31 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16299
Carlos O'Donell <carlos at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |WAITING
CC| |carlos at redhat dot com
--- Comment #6 from Carlos O'Donell <carlos at redhat dot com> ---
(In reply to Ken Nielson from comment #2)
> pthread_attr_setstacksize(&attr, stack_size);
You set the stack size in `attr'
> rc = pthread_create(&wthread,&request_pool->tp_attr,work_thread, &attr);
... but then ask the runtime to use `&request_pool->tp_attr' as the attributes
to create the thread.
You pass `&attr' as the argument to the thread function which will not change
the stack size used by the runtime.
This looks like a defect in your program?
Please confirm.
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* [Bug libc/16299] pthread_attr_setstacksize ignored
2013-12-06 20:33 [Bug libc/16299] New: pthread_attr_setstacksize ignored knielson at adaptivecomputing dot com
` (5 preceding siblings ...)
2013-12-06 22:31 ` carlos at redhat dot com
@ 2013-12-06 22:44 ` knielson at adaptivecomputing dot com
2013-12-06 22:45 ` carlos at redhat dot com
2014-06-13 11:28 ` fweimer at redhat dot com
8 siblings, 0 replies; 10+ messages in thread
From: knielson at adaptivecomputing dot com @ 2013-12-06 22:44 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16299
--- Comment #7 from Ken Nielson <knielson at adaptivecomputing dot com> ---
Thanks for taking the time to look at this. You are correct. We are using the
wrong attribute. Glad to know it is our code and not yours.
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* [Bug libc/16299] pthread_attr_setstacksize ignored
2013-12-06 20:33 [Bug libc/16299] New: pthread_attr_setstacksize ignored knielson at adaptivecomputing dot com
` (6 preceding siblings ...)
2013-12-06 22:44 ` knielson at adaptivecomputing dot com
@ 2013-12-06 22:45 ` carlos at redhat dot com
2014-06-13 11:28 ` fweimer at redhat dot com
8 siblings, 0 replies; 10+ messages in thread
From: carlos at redhat dot com @ 2013-12-06 22:45 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16299
Carlos O'Donell <carlos at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution|--- |INVALID
--- Comment #8 from Carlos O'Donell <carlos at redhat dot com> ---
(In reply to Ken Nielson from comment #7)
> Thanks for taking the time to look at this. You are correct. We are using
> the wrong attribute. Glad to know it is our code and not yours.
Thanks Ken! Marking resolved invalid.
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* [Bug libc/16299] pthread_attr_setstacksize ignored
2013-12-06 20:33 [Bug libc/16299] New: pthread_attr_setstacksize ignored knielson at adaptivecomputing dot com
` (7 preceding siblings ...)
2013-12-06 22:45 ` carlos at redhat dot com
@ 2014-06-13 11:28 ` fweimer at redhat dot com
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From: fweimer at redhat dot com @ 2014-06-13 11:28 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16299
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |security-
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