anchao commented on pull request #4953: URL: https://github.com/apache/incubator-nuttx/pull/4953#issuecomment-992188093
@masayuki2009 san, I reproduced this issue with new ostest update: https://github.com/anchao/incubator-nuttx-apps/commit/46593311374518aac737f36d8d799d9ad09c4d4f during the ostest processing, we need uart interrupts to help us increase the system loading: ``` ap> ostest & ... thread_waiter: Taking mutex thread_waiter: Starting 5 second wait for condition ap> ps PID GROUP PRI POLICY TYPE NPX STATE EVENT SIGMASK STACK USED FILLED CPU COMMAND ... 113 113 100 FIFO Task --- Waiting Signal 00000000 002032 000752 37.0% 0.0% ostest 114 114 100 FIFO Task --- Waiting Semaphore 00000000 008136 000760 9.3% 0.0% ostest Arg1 Arg2Arg3 Arg4 ... 119 114 100 FIFO pthread --- Ready 00000000 002048 000468 22.8% 0.0% pt-0x2c4154fd 0 120 114 99 FIFO pthread --- Ready 00000000 002048 000760 37.1% 1.2% pt-0x2c41540d 0 ``` ------------ ..... keep typing ps .... ---------------------------------- ``` ap> ps ... ap> ps ... ap> ps ... ap> ps PID GROUP PRI POLICY TYPE NPX STATE EVENT SIGMASK STACK USED FILLED CPU COMMAND ... 113 113 100 FIFO Task --- Waiting Signal 00000000 002032 000752 37.0% 0.0% ostest 114 114 100 FIFO Task --- Waiting Semaphore 00000000 008136 000760 9.3% 0.0% ostest Arg1 Arg2 Arg3 Arg4 ... 119 114 100 FIFO pthread --- Ready 00000000 002048 000468 22.8% 0.0% pt-0x2c4154fd 0 120 114 99 FIFO pthread --- Waiting Semaphore 00000000 002048 000760 37.1% 1.4% pt-0x2c41540d 0 ap> ps PID GROUP PRI POLICY TYPE NPX STATE EVENT SIGMASK STACK USED FILLED CPU COMMAND ... 113 113 100 FIFO Task --- Waiting Signal 00000000 002032 000752 37.0% 0.0% ostest 114 114 100 FIFO Task --- Waiting Semaphore 00000000 008136 000760 9.3% 0.0% ostest Arg1 Arg2 Arg3 Arg4 ... 120 114 99 FIFO pthread --- Waiting Semaphore 00000000 002048 000760 37.1% 0.7% pt-0x2c41540d 0 ``` the waiting time has already exceeded 5s, check the callstack: thread 119 is thread_busy, timeout and exit, thread 120 is thread_waiter, deadlock: ``` ap> dumpstack 113 [ 128.702121] [121] [ EMERG] [ap] backtrace: [ 128.702566] [121] [ EMERG] [ap] [113] [<0x2c3d74d2>] arm_switchcontext+0xe/0x18 [ 128.703782] [121] [ EMERG] [ap] [113] [<0x2c3b5ddf>] nxsig_timedwait+0xdf/0x18c [ 128.704982] [121] [ EMERG] [ap] [113] [<0x2c3b4878>] nx_waitpid+0x158/0x238 [ 128.706282] [121] [ EMERG] [ap] [113] [<0x2c3b495c>] waitpid+0x4/0x20 [ 128.707378] [121] [ EMERG] [ap] [113] [<0x2c4157c8>] ostest_main+0x134/0x258 [ 128.708588] [121] [ EMERG] [ap] [113] [<0x2c3c9b80>] nxtask_startup+0x40/0x68 [ 128.709788] [121] [ EMERG] [ap] [113] [<0x2c3b6ed6>] nxtask_start+0x46/0x60 ap> dumpstack 114 [ 130.567113] [122] [ EMERG] [ap] backtrace: [ 130.567528] [122] [ EMERG] [ap] [114] [<0x2c3d74d2>] arm_switchcontext+0xe/0x18 [ 130.568786] [122] [ EMERG] [ap] [114] [<0x2c3b5169>] nxsem_wait_uninterruptible+0x69/0xac [ 130.570114] [122] [ EMERG] [ap] [114] [<0x2c3b3c2e>] pthread_sem_take+0x1a/0x2c [ 130.571317] [122] [ EMERG] [ap] [114] [<0x2c3b363a>] pthread_join+0x9e/0xdc [ 130.572479] [122] [ EMERG] [ap] [114] [<0x2c4155da>] timedwait_test+0x9a/0x148 [ 130.573713] [122] [ EMERG] [ap] [114] [<0x2c41568c>] user_main+0x4/0xc [ 130.574855] [122] [ EMERG] [ap] [114] [<0x2c3c9b80>] nxtask_startup+0x40/0x68 [ 130.576044] [122] [ EMERG] [ap] [114] [<0x2c3b6ed6>] nxtask_start+0x46/0x60 ap> dumpstack 119 ap> dumpstack 120 [ 135.550877] [124] [ EMERG] [ap] backtrace: [ 135.551292] [124] [ EMERG] [ap] [120] [<0x2c3d74d2>] arm_switchcontext+0xe/0x18 [ 135.552538] [124] [ EMERG] [ap] [120] [<0x2c3b50cf>] nxsem_wait+0x57/0x88 [ 135.553681] [124] [ EMERG] [ap] [120] [<0x2c3b3ae6>] pthread_cond_clockwait+0xca/0x110 [ 135.554969] [124] [ EMERG] [ap] [120] [<0x2c415462>] thread_waiter+0x56/0xf0 [ 135.556177] [124] [ EMERG] [ap] [120] [<0x2c3c984a>] pthread_startup+0xa/0x1c [ 135.557427] [124] [ EMERG] [ap] [120] [<0x2c3b3262>] pthread_start+0x56/0x90 ap> ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
