Messages in this thread | | | Date | Sun, 9 Aug 2009 11:00:29 -0400 (EDT) | From | Alan Stern <> | Subject | Re: 2.6.31-rc5 regression: Oops when USB Serial disconnected while in use |
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On Sun, 9 Aug 2009, [UTF-8] Ozan ÃaÄlayan wrote:
> 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, > > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b68f2fb9e73f46037fbeca5fbd4ae8a7ddd8ef6b
That patch is already present in 2.6.31-rc5.
The problem here may be related to the fact that the serial port is being used as a console. For non-console ports this doesn't happen.
Alan Stern
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