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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2020/10/26 01:09:41 UTC
[GitHub] [incubator-nuttx] btashton edited a comment on pull request #2109: Revert "arch/sim: Make the SIGUSR1 host signal use the NuttX irq logic"
btashton edited a comment on pull request #2109:
URL: https://github.com/apache/incubator-nuttx/pull/2109#issuecomment-716249228
If you let it loop a few times you will hit this. Here is what gdb has to say
```c++
(gdb) info_nxthreads
target examined
_target_arch.name=i386:x86-64
$_target_has_fpu : 0
$_target_has_smp : 1
saved current_tcb (pid=0)
* 0 Thread 0x446740 (Name: CPU0 IDLE, State: Running, Priority: 0) 0x2d8da801 in clock_nanosleep@GLIBC_2.2.5()
1 Thread 0x446880 (Name: CPU1 IDLE, State: Running, Priority: 0) 0x40148b in up_cpu_paused()
2 Thread 0x4469c0 (Name: CPU2 IDLE, State: Running, Priority: 0) 0x40148b in up_cpu_paused()
3 Thread 0x446b00 (Name: CPU3 IDLE, State: Running, Priority: 0) 0x40148b in up_cpu_paused()
5 Thread 0x29810950 (Name: init, State: Waiting,Signal, Priority: 100) 0x40862e in up_block_task()
6 Thread 0x29813550 (Name: ostest, State: Waiting,Signal, Priority: 100) 0x40862e in up_block_task()
7 Thread 0x29815b50 (Name: ostest, State: Waiting,Semaphore, Priority: 100) 0x40862e in up_block_task()
(gdb) nx
nxcontinue nxthread nxthread_all_bt
(gdb) nxthread_all_bt
* 0 Thread 0x446740 (Name: CPU0 IDLE, State: Running, Priority: 0) 0x2d8da801 in clock_nanosleep@GLIBC_2.2.5()
#0 0x00007f032d8da801 in clock_nanosleep@GLIBC_2.2.5 () from /lib64/libc.so.6
#1 0x00007f032d8e0157 in nanosleep () from /lib64/libc.so.6
#2 0x00007f032d90b869 in usleep () from /lib64/libc.so.6
#3 0x00000000004301d9 in host_sleepuntil (nsec=317590000000) at sim/up_hosttime.c:92
#4 0x0000000000408d1f in up_timer_update () at sim/up_oneshot.c:444
#5 0x0000000000408203 in up_idle () at sim/up_idle.c:119
#6 0x0000000000401b72 in nx_start () at init/nx_start.c:832
#7 0x00000000004013c3 in main (argc=1, argv=0x7ffdf9ad7828, envp=0x7ffdf9ad7838) at sim/up_head.c:96
1 Thread 0x446880 (Name: CPU1 IDLE, State: Running, Priority: 0) 0x40148b in up_cpu_paused()
#0 up_cpu_paused (cpu=1) at sim/up_smpsignal.c:119
#1 0x00000000004305d0 in sim_handle_signal (signo=10, info=0x7f032980d830, context=0x7f032980d700) at sim/up_simsmp.c:202
#2 <signal handler called>
#3 0x00007f032d8da801 in clock_nanosleep@GLIBC_2.2.5 () from /lib64/libc.so.6
#4 0x00007f032d8e0157 in nanosleep () from /lib64/libc.so.6
#5 0x00007f032d90b869 in usleep () from /lib64/libc.so.6
#6 0x00000000004301d9 in host_sleepuntil (nsec=331230000000) at sim/up_hosttime.c:92
#7 0x000000000043059f in sim_idle_trampoline (arg=0x7ffdf9ad7630) at sim/up_simsmp.c:172
#8 0x00007f032d9f0432 in start_thread () from /lib64/libpthread.so.0
#9 0x00007f032d913913 in clone () from /lib64/libc.so.6
2 Thread 0x4469c0 (Name: CPU2 IDLE, State: Running, Priority: 0) 0x40148b in up_cpu_paused()
#0 up_cpu_paused (cpu=2) at sim/up_smpsignal.c:119
#1 0x00000000004305d0 in sim_handle_signal (signo=10, info=0x7f032900c830, context=0x7f032900c700) at sim/up_simsmp.c:202
#2 <signal handler called>
#3 0x00007f032d8da801 in clock_nanosleep@GLIBC_2.2.5 () from /lib64/libc.so.6
#4 0x00007f032d8e0157 in nanosleep () from /lib64/libc.so.6
#5 0x00007f032d90b869 in usleep () from /lib64/libc.so.6
#6 0x00000000004301d9 in host_sleepuntil (nsec=331230000000) at sim/up_hosttime.c:92
#7 0x000000000043059f in sim_idle_trampoline (arg=0x7ffdf9ad7630) at sim/up_simsmp.c:172
#8 0x00007f032d9f0432 in start_thread () from /lib64/libpthread.so.0
#9 0x00007f032d913913 in clone () from /lib64/libc.so.6
3 Thread 0x446b00 (Name: CPU3 IDLE, State: Running, Priority: 0) 0x40148b in up_cpu_paused()
#0 up_cpu_paused (cpu=3) at sim/up_smpsignal.c:119
#1 0x00000000004305d0 in sim_handle_signal (signo=10, info=0x7f032880b830, context=0x7f032880b700) at sim/up_simsmp.c:202
#2 <signal handler called>
#3 0x00007f032d8da801 in clock_nanosleep@GLIBC_2.2.5 () from /lib64/libc.so.6
#4 0x00007f032d8e0157 in nanosleep () from /lib64/libc.so.6
#5 0x00007f032d90b869 in usleep () from /lib64/libc.so.6
#6 0x00000000004301d9 in host_sleepuntil (nsec=331230000000) at sim/up_hosttime.c:92
#7 0x000000000043059f in sim_idle_trampoline (arg=0x7ffdf9ad7630) at sim/up_simsmp.c:172
#8 0x00007f032d9f0432 in start_thread () from /lib64/libpthread.so.0
#9 0x00007f032d913913 in clone () from /lib64/libc.so.6
5 Thread 0x29810950 (Name: init, State: Waiting,Signal, Priority: 100) 0x40862e in up_block_task()
#0 up_block_task (tcb=0x7f0329810950, task_state=TSTATE_WAIT_SIG) at sim/up_blocktask.c:121
#1 0x000000000041c5e1 in nxsig_timedwait (set=0x7f0329812a8c, info=0x7f0329812a90, timeout=0x0) at signal/sig_timedwait.c:355
#2 0x000000000041c287 in nx_waitpid (pid=6, stat_loc=0x7f0329812b44, options=4) at sched/sched_waitpid.c:401
#3 0x000000000041c304 in waitpid (pid=6, stat_loc=0x7f0329812b44, options=4) at sched/sched_waitpid.c:584
#4 0x0000000000411da5 in nsh_builtin (vtbl=0x7f0329813030, cmd=0x7f03298134e8 "ostest", argv=0x7f0329812c40, redirfile=0x0, oflags=0) at nsh_builtin.c:163
#5 0x000000000040a541 in nsh_execute (vtbl=0x7f0329813030, argc=1, argv=0x7f0329812c40, redirfile=0x0, oflags=0) at nsh_parse.c:528
#6 0x000000000040ca12 in nsh_parse_command (vtbl=0x7f0329813030, cmdline=0x7f03298134e8 "ostest") at nsh_parse.c:2578
#7 0x000000000040caf2 in nsh_parse (vtbl=0x7f0329813030, cmdline=0x7f03298134e8 "ostest") at nsh_parse.c:2662
#8 0x0000000000409569 in nsh_session (pstate=0x7f0329813030, login=1 '\001', argc=1, argv=0x7f0329812ec0) at nsh_session.c:191
#9 0x0000000000408dfd in nsh_consolemain (argc=1, argv=0x7f0329812ec0) at nsh_consolemain.c:115
#10 0x0000000000408d84 in nsh_main (argc=1, argv=0x7f0329812ec0) at nsh_main.c:168
#11 0x0000000000405ed5 in nxtask_startup (entrypt=0x408d27 <nsh_main>, argc=1, argv=0x7f0329812ec0) at sched/task_startup.c:165
#12 0x0000000000402786 in nxtask_start () at task/task_start.c:147
#13 0x0000000000000000 in ?? ()
6 Thread 0x29813550 (Name: ostest, State: Waiting,Signal, Priority: 100) 0x40862e in up_block_task()
#0 up_block_task (tcb=0x7f0329813550, task_state=TSTATE_WAIT_SIG) at sim/up_blocktask.c:121
#1 0x000000000041c5e1 in nxsig_timedwait (set=0x7f03298159ac, info=0x7f03298159b0, timeout=0x0) at signal/sig_timedwait.c:355
#2 0x000000000041c287 in nx_waitpid (pid=7, stat_loc=0x7f0329815a48, options=0) at sched/sched_waitpid.c:401
#3 0x000000000041c304 in waitpid (pid=7, stat_loc=0x7f0329815a48, options=0) at sched/sched_waitpid.c:584
#4 0x0000000000423bfa in ostest_main (argc=1, argv=0x7f0329815ac0) at ostest_main.c:640
#5 0x0000000000405ed5 in nxtask_startup (entrypt=0x423a61 <ostest_main>, argc=1, argv=0x7f0329815ac0) at sched/task_startup.c:165
#6 0x0000000000402786 in nxtask_start () at task/task_start.c:147
#7 0x0000000000000000 in ?? ()
7 Thread 0x29815b50 (Name: ostest, State: Waiting,Semaphore, Priority: 100) 0x40862e in up_block_task()
#0 up_block_task (tcb=0x7f0329815b50, task_state=TSTATE_WAIT_SEM) at sim/up_blocktask.c:121
#1 0x0000000000404518 in nxsem_wait (sem=0x7f03298184be) at semaphore/sem_wait.c:153
#2 0x0000000000404563 in nxsem_wait_uninterruptible (sem=0x7f03298184be) at semaphore/sem_wait.c:222
#3 0x00000000004041be in pthread_sem_take (sem=0x7f03298184be, abs_timeout=0x0, intr=0 '\000') at pthread/pthread_initialize.c:119
#4 0x000000000042cb84 in pthread_join (thread=106, pexit_value=0x0) at pthread/pthread_join.c:185
#5 0x0000000000428c18 in test_two_threads () at pthread_rwlock.c:272
#6 0x0000000000429024 in pthread_rwlock_test () at pthread_rwlock.c:445
#7 0x00000000004238a5 in user_main (argc=5, argv=0x7f03298180f0) at ostest_main.c:423
#8 0x0000000000405ed5 in nxtask_startup (entrypt=0x423585 <user_main>, argc=5, argv=0x7f03298180f0) at sched/task_startup.c:165
#9 0x0000000000402786 in nxtask_start () at task/task_start.c:147
#10 0x0000000000000000 in ?? ()
```
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