Re: 2.6.31.4: WARNING: at drivers/usb/serial/usb-serial.c:446 serial_unthrottle

From: Katsuhiko Nishimra
Date: Wed Oct 21 2009 - 23:06:39 EST


Alan Cox wrote:
> On Thu, 15 Oct 2009 15:12:03 +0200
> Tomasz Chmielewski <mangoo@xxxxxxxx> wrote:
>
>> I see my minicom segfaulted for some reason (probably as I closed konsole window without exiting minicom first).
>>
>> And I see this warning in dmesg - anything useful?
>
> Looks like a very very old bug in the tty code. I have a patch for this I'm
> testing for a while and will sort out properly after the kernel summit. In
> the mean time have a play with the patch below which ought to do the trick.
>

Unfortunately, I reproduced this error after applying this patch into
v2.6.32-rc5. Kerneloops url for the bug is below.
http://www.kerneloops.org/submitresult.php?number=827635

This bug occured when I close minicom normally with C-A X.

Thx.
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