Re: [BUG] D state process after unplug and umount usb disk

[Lin Ming]

On Sun, Sep 4, 2011 at 9:49 PM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:
>
>> Where does this exit signal come from?
>> Does USB interrupt handler will send kill signal to all processes
>> accessing it when it's unplugged(by hand)?
>
> The USB stack does not send any signals at all unless a process
> specifically asks for them.

How to ask?

I have not checked, but think umount code path will not send signal to process.
Curiously, where does the exit signal come from?

Dave,
Did you press "Ctrl + C" on cat?

Lin Ming
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