Error Return Code From Pthread_create Is 22
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pthread_attr_t attr; pthread_attr_init( &attr ); // returns 0 pthread_attr_setdetachstate( &attr, PTHREAD_CREATE_JOINABLE ); // returns 0 #ifdef SCHED_RR // is defined! if ( options && (options->flags & RTAUDIO_SCHEDULE_REALTIME) ) { struct pthread create detached thread sched_param param; int priority = options->priority; int min = sched_get_priority_min( SCHED_RR pthread create and join ); int max = sched_get_priority_max( SCHED_RR ); if ( priority < min ) priority = min; else
Pthread Create Mutex
if ( priority > max ) priority = max; param.sched_priority = priority; pthread_attr_setschedparam( &attr, ¶m ); // returns 22... pthread_attr_setschedpolicy( &attr, SCHED_RR ); // returns 0 //
C++ Pthread Create
test begin: int x = pthread_attr_getschedparam( &attr, ¶m ); int prio = param.sched_priority; printf("\nPriority : %d \n", priority); // // returns 49 printf("\ngetsched : %d \n", x); // // returns 0 printf("\nT-Priority : %d \n", prio); // // returns 0 // test end } else //... I put these lines (test begin to test end) create pthread in c example to the code, to see, if thread priority is really working. In the application "priority" is set (here) to 49. This test shows, that it is not working (prio = 0). Is there a mistake in the API or is my test-code wrong? My second question: If I set process-priority (in the application), how does this value interact with thread priority? For all threads? Regards Thomas Last edited on Sep 19, 2012 at 7:43am UTC Sep 18, 2012 at 7:30pm UTC Cubbi (4001) You're not checking the return values of those pthread_attr functions. Check if they return errors. A typical cause of a failure would be not running this test as root or having a restrictive ulimit -r (even as root) Sep 19, 2012 at 7:03am UTC TJF (11) I've checked them now: pthread_attr_setschedparam( &attr, ¶m ); returns a non zero value (=22). ulimit -r is set to 99. The same as root or as user... I put all return values in my first pos
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Pthread Lock
Issues 3,954 Pull requests 3 Projects 0 Wiki Pulse Graphs New pthread error codes issue runtime/vm/os_thread_linux.cc:234: error: pthread error: 22 (Invalid argument) #24169 Closed kodandersson opened this Issue Aug 21, pthread_join error code 22 2015 · 3 comments Projects None yet Labels area-vm Milestone 1.12 Assignees kodandersson 1 participant kodandersson commented Aug 21, 2015 http://build.chromium.org/p/client.dart/builders/vm-linux-debug-ia32-be/builds/4811/steps/tests/logs/stdio @iposva-google http://www.cplusplus.com/forum/unices/79490/ kodandersson added the Area-VM label Aug 21, 2015 kodandersson commented Aug 21, 2015 @johnmccutchan kodandersson self-assigned this Aug 21, 2015 kodandersson added this to the 1.12 milestone Aug 21, 2015 kodandersson commented Aug 21, 2015 Seems something is locking a mutex (probably StoreBuffer::global_mutex_) after its destruction. kodandersson commented Aug 21, 2015 At Dart::CleanUp https://github.com/dart-lang/sdk/issues/24169 time, there may still be threads around that access their store buffer, so we need to keep the global_mutex_ around until @zanderso lands the clean shutdown CL. kodandersson added a commit that referenced this issue Aug 21, 2015 kodandersson … At Dart::CleanUp time, there may still be threads around that access their store buffer, so we need to keep these around until @zanderso lands the clean shutdown CL. We should stop leaking them once we cleanly stop all threads at VM shutdown (see issue 23844). BUG=#24169 R=iposva@google.com Review URL: https://codereview.chromium.org//1305123003 . esroh View Profile View Forum Posts Registered User Devshed Newbie (0 - 499 posts) Join Date Apr 2009 Posts 10 Rep Power 0 Pthread join problem - segmentation fault Hello, I have created 4 threads. 1 for writeToQueue() - thread 1 3 for readFromQueuePlusCalculate() - thread 2 - 4 After creating them i tried joining all the 4 pthreads using pthread_join but i get segmentation fault. I found out that if i pthread_join the first 3 threads i don't get segmentation fault but if i try pthread_join the 4th thread too i get segmentation fault at the end of the execution of the program. I tried pthread_join only the 4th thread just to see and i get segmentation fault instantly (the program doesn't execute at all). Can i know where the problem comes from plz? NOTE: I'm getting error message: "ERROR: Return code from pthread_create() is 22" when i'm using pthread_attr_init(...) and pthread_attr_setdetachstate(.....) Faq Reply With Quote May 9th, 2009,09:10 PM #2 Scorpions4ever View Profile View Forum Posts Banned ;) Devshed Supreme Being (6500+ posts) Join Date Nov 2001 Location Woodland Hills, Los Angeles County, California, USA Posts 9,767 Rep Power 4299 Show us the source. Could you be creating the thread with different attributes (detachstate = PTHREAD_CREATE_DETACHED) that don't let it be pthread_join()ed by any chance. Anyway, it is completely useless to speculate without the source. Up the Irons What Would Jimi Do? Smash amps. Burn guitar. Take the groupies home. "Death Before Dishonour, my Friends!!" - Bruce D ickinson, Iron Maiden Aug 20, 2005 @ OzzFest Down with Sharon Osbourne "I wouldn't hire a butcher to fix my car. I also wouldn't hire a marketing firm to build my website." - Nilpo Faq Reply With Quote May 10th, 2009,12:04 AM #3 No Profile Picture esroh View Profile View Forum Posts Registered User Devsh