I'd like to report a USB bug that causes kernel panic and PC frozen.
I am using the usbserial driver. After starting pppd on ttyUSB0, the USB modem is either unplugged from the PC or powered off. At this moment, if the pppd is killed (which will write the ttyUSB0), it will cause "kernel panic" and the PC freezes up.
I can also reproduce the problem by using my own applications that opens the ttyUSB port to read and write (it is not pppd).
Anyone know if this is a know bug? If so, is there any fix?
This problem is really bad because the I lost control of the PC.
Thanks,
Simon
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