Re: 2.6.31-rc5 regression: Oops when USB Serial disconnected while in use

Ozan Çağlayan
2009-08-09T14:02:44Z

Bruno Prémont wrote:
> I tried bisecting this but bisect did end up on a fully unrelated commit
> (which is not even being compiled into my kernel).
> Possibly the failed bisect could be related to mis-classified kernel
> panic/hang while pulling the USB cable (there were two such panics for the
> whole iteration)?
>
> There are quite a few patches touching tty, ttyUSB and friends between
> rc4 and now so pretty hard to guess on the correct one.
>
> The oops always happens when I disconnect the USB serial console (here
> the one built into Marvell SheevaPlug) while having minicom connected
> to it.
> During the bisection for the last few bad iterations minicom got killed
> (segfault), the bad ones on the iteration left a minicom zombie in 'D'
> state.
>
> Regards,
> Bruno
>
>

That may be a related/possible fix for that,