00121f9812
CPU0 CPU1
1. feed0 thread feed1 thread
(prio 1 affinity) (prio 1 affinity)
2. nsh_main
sched_lock()
3. waitpid() hello_main
4. ------ hello exit()
5. ------ exit()->exit_wakeup()->wakeup nsh ->
add_readytorun()->
nsh at schedlock state set g_cpu_schedlock
6. ----- exit()->nxtask_exit()->remove_readytorun()
-> check g_cpu_schedlock -> pick idle1
7. waitpid() return idle thread
8. sched_unlock idle thread
The error is in step 6:
pick a idle thread to execute not feed1 thread.
resolve:
remove the schedlocked-check in remove_readytorun()
Signed-off-by: ligd <liguiding1@xiaomi.com>
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| .. | ||
| CMakeLists.txt | ||
| Make.defs | ||
| sched_addblocked.c | ||
| sched_addprioritized.c | ||
| sched_addreadytorun.c | ||
| sched_backtrace.c | ||
| sched_cpuload_oneshot.c | ||
| sched_cpuload_period.c | ||
| sched_cpuload.c | ||
| sched_cpupause.c | ||
| sched_cpuselect.c | ||
| sched_critmonitor.c | ||
| sched_foreach.c | ||
| sched_get_stackinfo.c | ||
| sched_get_stateinfo.c | ||
| sched_get_tls.c | ||
| sched_getaffinity.c | ||
| sched_getcpu.c | ||
| sched_getfiles.c | ||
| sched_getparam.c | ||
| sched_getscheduler.c | ||
| sched_gettcb.c | ||
| sched_idletask.c | ||
| sched_lock.c | ||
| sched_lockcount.c | ||
| sched_mergepending.c | ||
| sched_mergeprioritized.c | ||
| sched_processtimer.c | ||
| sched_releasetcb.c | ||
| sched_removeblocked.c | ||
| sched_removereadytorun.c | ||
| sched_reprioritize.c | ||
| sched_reprioritizertr.c | ||
| sched_resumescheduler.c | ||
| sched_roundrobin.c | ||
| sched_rrgetinterval.c | ||
| sched_self.c | ||
| sched_setaffinity.c | ||
| sched_setparam.c | ||
| sched_setpriority.c | ||
| sched_setscheduler.c | ||
| sched_smp.c | ||
| sched_sporadic.c | ||
| sched_suspend.c | ||
| sched_suspendscheduler.c | ||
| sched_sysinfo.c | ||
| sched_thistask.c | ||
| sched_timerexpiration.c | ||
| sched_unlock.c | ||
| sched_verifytcb.c | ||
| sched_wait.c | ||
| sched_waitid.c | ||
| sched_waitpid.c | ||
| sched_yield.c | ||
| sched.h | ||