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ligd
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>