高手请进：驱动开发中关于心跳机制的问题！

geniusmen

有的时候模块就死了，心跳也不跳了，
  兄弟们帮看看这些代码说明了什么？（我写的是MODEM驱动）

usb.c: USB disconnect on device 00:07.2-1 address 11
usbserial.c: Generic converter now disconnected from ttyUSB0
hub.c: new USB device 00:07.2-1, assigned address 12
usb.c: USB device 12 (vend/prod 0x456/0x6588) is not claimed by any active driver.
usb.c: USB disconnect on device 00:07.2-1 address 12
hub.c: new USB device 00:07.2-1, assigned address 13
usbserial.c: Generic converter detected
usbserial.c: Generic converter now attached to ttyUSB0 (or usb/tts/0 for devfs)
usb.c: USB disconnect on device 00:07.2-1 address 13
usbserial.c: Generic converter now disconnected from ttyUSB0
hub.c: new USB device 00:07.2-1, assigned address 14
usbserial.c: Generic converter detected
usbserial.c: Generic converter now attached to ttyUSB0 (or usb/tts/0 for devfs)
smb_trans2_request: result=-104, setting invalid
smb_retry: successful, new pid=1887, generation=13
divert: not allocating divert_blk for non-ethernet device ppp0
usb-uhci.c: interrupt, status 3, frame# 1778
smb_get_length: recv error = 512
smb_request: result -512, setting invalid
smb_retry: caught signal
smb_retry: caught signal
divert: no divert_blk to free, ppp0 not ethernet
usb.c: USB disconnect on device 00:07.2-1 address 14
usbserial.c: Generic converter now disconnected from ttyUSB0
smb_retry: successful, new pid=1887, generation=14
hub.c: new USB device 00:07.2-1, assigned address 15
usb.c: USB device 15 (vend/prod 0x456/0x6588) is not claimed by any active driver.
usb.c: USB disconnect on device 00:07.2-1 address 15
hub.c: new USB device 00:07.2-1, assigned address 16
usbserial.c: Generic converter detected
usbserial.c: Generic converter now attached to ttyUSB0 (or usb/tts/0 for devfs)
divert: not allocating divert_blk for non-ethernet device ppp0
divert: no divert_blk to free, ppp0 not ethernet
divert: not allocating divert_blk for non-ethernet device ppp0
usb-uhci.c: interrupt, status 3, frame# 1807
smb_get_length: recv error = 512
smb_request: result -512, setting invalid
smb_retry: caught signal
smb_retry: caught signal
divert: no divert_blk to free, ppp0 not ethernet
smb_retry: caught signal
smb_retry: successful, new pid=1887, generation=15
usb.c: USB disconnect on device 00:07.2-1 address 16
usbserial.c: Generic converter now disconnected from ttyUSB0
hub.c: new USB device 00:07.2-1, assigned address 17
usb.c: USB device 17 (vend/prod 0x456/0x6588) is not claimed by any active driver.
usb.c: USB disconnect on device 00:07.2-1 address 17
hub.c: new USB device 00:07.2-1, assigned address 18
usbserial.c: Generic converter detected
usbserial.c: Generic converter now attached to ttyUSB0 (or usb/tts/0 for devfs)
divert: not allocating divert_blk for non-ethernet device ppp0
divert: no divert_blk to free, ppp0 not ethernet
divert: not allocating divert_blk for non-ethernet device ppp0
usb-uhci.c: interrupt, status 3, frame# 288
smb_get_length: recv error = 512
smb_request: result -512, setting invalid
smb_retry: caught signal
smb_retry: caught signal
divert: no divert_blk to free, ppp0 not ethernet
usb.c: USB disconnect on device 00:07.2-1 address 18
usbserial.c: Generic converter now disconnected from ttyUSB0
smb_retry: successful, new pid=1887, generation=16
smb_trans2_request: result=-104, setting invalid
smb_retry: successful, new pid=1887, generation=17

[ 本帖最后由 dreamice 于 2008-11-17 10:44 编辑 ]

dreamice

單純看你这些信息，确实看不出什么眉目。

geniusmen

主要是这几行呀！！
divert: not allocating divert_blk for non-ethernet device ppp0
divert: no divert_blk to free, ppp0 not ethernet
divert: not allocating divert_blk for non-ethernet device ppp0
usb-uhci.c: interrupt, status 3, frame# 288
smb_get_length: recv error = 512

liugang9931706

usbserial_generic 2-2:1.0:generic converter detected
usb2-2:generic converter now attached to ttyUSB0
usb2-2:USB disconnect
generic ttyUSB0: generic converter now attached from ttyUSB0
usbserial_generic 2-2:1.0: device disconnected
我也出现类似的错误，你的是怎么解决的？

matthew_ye

看你这个问题内容,发现接收心跳和接收数据的是一个接收方,我觉得在没有数据传输的时候才有必要发心跳包!这样可以绕过你的问题,假如接收心跳和接收数据的不是一个接收方,你才需要调整发心跳包和发数据的任务调度策略了,当然是优先保证心跳包了,发数据的时候能判断是否该发心跳包,如果是则先发心跳包.你觉的怎样?