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[菜鸟求助]启动串口时报以下错误 求拯救啊！
来源: 互联网 发布时间：2017-02-21
本文导语: ------------[ cut here ]------------ WARNING: at drivers/usb/serial/usb-serial.c:406 serial_write_room+0x6c/0x84() Modules linked in: Backtrace: [] (dump_backtrace+0x0/0x10c) from [] (dump_stack+0x18/0x1c) r7:00000000 r6:c02023bc r5:c047e330 r4:00000196 [] (dump_stack+0x0/0x...
------------[ cut here ]------------
WARNING: at drivers/usb/serial/usb-serial.c:406 serial_write_room+0x6c/0x84()
Modules linked in:
Backtrace:
[] (dump_backtrace+0x0/0x10c) from [] (dump_stack+0x18/0x1c)
r7:00000000 r6:c02023bc r5:c047e330 r4:00000196
[] (dump_stack+0x0/0x1c) from [] (warn_slowpath_common+0x4c/0x80)
[] (warn_slowpath_common+0x0/0x80) from [] (warn_slowpath_null+0x18/0x1c)
r7:00000000 r6:c3cb2c00 r5:c3cb2c00 r4:c3bb7e00
[] (warn_slowpath_null+0x0/0x1c) from [] (serial_write_room+0x6c/0x84)
[] (serial_write_room+0x0/0x84) from [] (tty_write_room+0x28/0x2c)
r5:c3c679c0 r4:00000000
[] (tty_write_room+0x0/0x2c) from [] (process_echoes+0x50/0x2ac)
[] (process_echoes+0x0/0x2ac) from [] (n_tty_receive_buf+0x448/0x11a4)
[] (n_tty_receive_buf+0x0/0x11a4) from [] (flush_to_ldisc+0x184/0x1a4)
[] (flush_to_ldisc+0x0/0x1a4) from [] (worker_thread+0x10c/0x1ac)
r9:00000000 r8:c3800368 r7:00000000 r6:c382c000 r5:c016ff18
r4:c3800360
[] (worker_thread+0x0/0x1ac) from [] (kthread+0x88/0x90)
[] (kthread+0x0/0x90) from [] (do_exit+0x0/0x62c)
r6:00000000 r5:00000000 r4:00000000
---[ end trace 10a24e43328e8544 ]---
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USB串口的问题，看不出什么名堂来。换一个内核版本试试看。
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