问题出现,在Tiny6410上做一简单qt界面,上面有一个关机键,想实现关机操作,在qt槽函数中调用::system("shutdown")系统命令来实现关机,但出现两个问题
1:qtl界面退出后,LCD上面原来的提示字符并没有消失,如Starting leds service...这些类似的打印字符
2:超级终端中出现
Sent SIGKILL to all processesSystem halted.
INFO: task linuxrc:1 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
linuxrc D c051507c 0 1 0 0x00000000
[<c051507c>] (schedule+0x304/0x370) from [<c05153b8>] (schedule_timeout+0x18/0x1
a0)
[<c05153b8>] (schedule_timeout+0x18/0x1a0) from [<c0514c48>] (wait_for_common+0x
e0/0x17c)
[<c0514c48>] (wait_for_common+0xe0/0x17c) from [<c0186654>] (do_fork+0x1e0/0x224
)
one_wire_status: 4
[<c0186654>] (do_fork+0x1e0/0x224) from [<c0175c88>] (sys_vfork+0x20/0x28)
[<c0175c88>] (sys_vfork+0x20/0x28) from [<c01725e0>] (ret_fast_syscall+0x0/0x30)
说明:原装tiny6410只是没有启动qtopia