linux-kernel - Re: rocket tty BUG in 2.6.29 (regression)

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Message-ID: <87k54roe96.fsf@tac.ki.iif.hu>
Date:	Fri, 08 May 2009 16:33:57 +0200
From:	Ferenc Wagner <wferi@...f.hu>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: rocket tty BUG in 2.6.29 (regression)

Alan Cox <alan@...rguk.ukuu.org.uk> writes:

> On Fri, 08 May 2009 02:36:45 +0200
> Ferenc Wagner <wferi@...f.hu> wrote:
>
>> 2.6.26 works fine in our terminal server machine, but after rebooting
>> it into 2.6.29 I got the following Oops when starting screen for a
>> ttyR serial device (after unloading and reloading the rocket module
>> while trying to get some udev rename rules right):
>
> So it works the first time around, then blos up the second ? Is this
> repeatable ?

No, I didn't say this.  The first time I didn't even try, because our
software uses the persistent names, not /dev/ttyR*, but the udev
rename rules didn't fire.  So I fixed the rules, removed and
reinserted the module, then started the console multiplexer, which
provoked the bugs (all 16).  I don't think it has anything to do with
the issue, but wanted to explain the "last removed: rocket" part of
the log.

> In theory Ted is the maintainer for rocket but as I'm the one who last
> did any surgery on it this one may well be my bug.

Looks like Jiri has a handle on the problem, though.  Once you
converge on a patch and need testing, tell me.  I'm not in a hurry,
the current Debian stable kernel works OK, I tested 2.6.29 while
investigating an unrelated networking issue.
-- 
Thanks for the great support again,
Feri.
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