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Return Code From Pthread_create Is 12


Are airlines obliged to notify ticket cancellations due to no-shows? Have you tried to create some thread attributes for the second argument to pthread_create()? –Jonathan Leffler Dec 31 '11 at 4:21 add a comment| 3 Answers 3 active oldest votes up Also I read something about NPTL (http://en.wikipedia.org/wiki/Native_POSIX_Thread_Library), I have never used it before, but do we have it here on ubuntu :| seems threads run much better when using this library. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. check over here

You are currently viewing LQ as a guest. Failed to write text.txt\n"); exit(0); } free(threadArgs); pthread_exit(0); } int main(int argv, char *argc[]) { srand( (unsigned)time(0) ); // seeding random number pthread_t th_id=0; for(int i=0; i<310; i++) { Threadargs *t; The error code is stored in rc. ... } Exceptions: The following Pthreads functions do not return any error code: pthread_t pthread_self(void); // always succeeds. current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list.


Password Programming This forum is for all programming questions. But due to some reason thread holding the lock died .So when other thread tries to lock the mutex. If the owner that acquired the lock with EOWNERDEAD dies, the next owner acquires the lock with EOWNERDEAD. The new thread starts execution by invoking start_routine(); arg is passed as the sole argument of start_routine().

It decided to eliminate the errno deficiencies all together for the Pthreads APIs by changing the way errors are reported. Introduction to Linux - A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started The solution is to add Code: usleep(1); int error = pthread_create(&th_id, NULL, &writefile, t); just force the main function to sleep even just 1us before creating another thread.... DESCRIPTION top The pthread_create() function starts a new thread in the calling process.

Otherwise, an error number is returned to indicate the error. Indeed, a thread could execute a function that modifies errno just before you check the value in another thread. Here we are concern exclusively with current, upstream code. http://www.linuxquestions.org/questions/programming-9/pthread_create-cannot-allocate-memory-error-code-12-a-486157/ See: http://bugs.mysql.com/bug.php?id=27487 OS error code 12: Cannot allocate memory InnoDB: Error: pthread_create returned 12 070329 14:54:41 mysqld ended This behavior has been experienced on: RHEL3 (2.4.21-37.ELsmp) and SuSE 10.1 ( glibc-2.4-31

A post on c.p.t. For me that was a really hard bug to track down^^ I think pthread_detach is also not mentioned in most Pthread starter Tutorials. The problem is that every new thread has to allocate as much as the stack size , so if your stack size is 8 Mb, then 300 threads would have to Before returning, a successful call to pthread_create() stores the ID of the new thread in the buffer pointed to by thread; this identifier is used to refer to the thread in

  • EXAMPLE top The program below demonstrates the use of pthread_create(), as well as a number of other functions in the pthreads API.
  • Here is my test (quick and dirty; i'm using the ACE lib) Code: #define USE_ACE 0 void* theFunction ( void* ) { return 0; } void maxThreadTest () { const int
  • RETURN VALUE top On success, pthread_create() returns 0; on error, it returns an error number, and the contents of *thread are undefined.
  • Generated Sun, 08 Jan 2017 20:58:56 GMT by s_hp87 (squid/3.5.23)
  • Strangely, ulimit -s unlimited or ulimit -s 8192 does not produce this ENOMEM result.
  • Code: struct Threadargs { int seq; }; void getCurrentDateTime(char *sdate) { time_t tnum; struct tm *tmdate; time(&tnum); tmdate = localtime(&tnum); strftime(sdate, 21, "%Y-%m-%d %H:%M:%S", tmdate); } unsigned int genRandom(int digit=5) {
  • If you (or a system function) set the errno variable in one thread, it won't affect the errno value in any other thread.
  • pthread_attr_t tattr; size_t size; size = SOMESTACKSIZE + PTHREAD_STACK_MIN; pthread_attr_init(&tattr); pthread_attr_setstacksize(&tattr, size); for(int i=0;i<500;i++){ pthread_t MyThread; int output= pthread_create(&MyThread, &tattr, &mythread, 0); if (output) { std::cout<< "hi " <
  • Another crazy problem is that taking pauses of a few secconds between the connection attempts doesn't make any difference.


Comment 1 Ulrich Drepper 2004-09-26 12:13:16 UTC I don't think there is any case left where ENOMEM is returned. When a detached thread terminates, its resources are automatically released back to the system: it is not possible to join with the thread in order to obtain its exit status. Pthread_join If the start_routine returns, the effect is as if there was an implicit call to pthread_exit() using the return value of start_routine as the exit status. Pthread_create_detached Join them; it only takes a minute: Sign up Why does pthread_create() return 12?

the appropriate error code otherwise. http://1pxcare.com/return-code/return-code-157.html Make sure you're not exhausting your memory through other means as well. I'm trying to write a Server where every Client is served by a thread, which to me seems prity effective in my case since I'm using blocking recvs and most of Hot Network Questions How do you express any radical root of a number?

If you need to reset your password, click here. Required fields are marked *Comment Notify me of followup comments via e-mail Name * Email * Website Please note: JavaScript is required to post comments. « Real-World Systems | Pthreads arguments Comment 10 Ulrich Drepper 2011-05-11 22:24:22 UTC (In reply to comment #9) > I was just able to reproduce this. http://1pxcare.com/return-code/ach-return-code-03.html This is shown in the example below.

Powered by vBulletin Version 4.2.2 Copyright © 2017 vBulletin Solutions, Inc. Only when a terminated joinable thread has been joined are the last of its resources released back to the system. Is there a mistake in the API or is my test-code wrong?

but when I run it from the command line, it returns 12.

Visit the following links: Site Howto | Site FAQ | Sitemap | Register Now If you have any problems with the registration process or your account login, please contact us. we are using: Linux version 2.6.18-92.el5PAE ([email protected]) (gcc version 4.1.2 20071124 (Red Hat 4.1.2-42)) SMP Tue EDT 2008 i686 i686 i386 GNU/Linux I am lil confused as pthread is one of This mechanism has a few drawbacks even for single-threaded process: it is not simple to return -1 as valid value. If the caller is able to make the state consistent, call pthread_mutex_consistent_np() for the mutex and unlock the mutex.

Copyright © 1997 The Open Group [ Main Index | XSH | XCU | XBD | XCURSES | XNS ] ERROR The requested URL could not be retrieved The following error This is equivalent to calling pthread_exit(3) with the value supplied in the return statement. * It is canceled (see pthread_cancel(3)). * Any of the threads in the process calls exit(3), or No new replies allowed. have a peek at these guys Solution: create the threads in the detached state with the pthread_attr_setdetachstate call, e.g.; pthread_attr_init (&id_attr); pthread_attr_setdetachstate(&id_attr, PTHREAD_CREATE_DETACHED); pthread_create( , &id_attr, , ); unless you really need the threads in the joinable