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Message-ID: <4CED6ACF.9000402@suse.cz>
Date: Wed, 24 Nov 2010 20:43:11 +0100
From: Jiri Slaby <jslaby@suse.cz>
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To: Sergey Lapin <slapin@ossfans.org>
CC: linux-kernel@vger.kernel.org
Subject: Re: ldisc problems with 2.6.32-2.6.37-rc2 (at least)
References: <20101124135249.GA7282@build.ihdev.net> <4CED2251.3020708@suse.cz> <20101124170326.GB7282@build.ihdev.net>
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On 11/24/2010 06:03 PM, Sergey Lapin wrote:
>> Hi, I don't think you get similar backtraces in .37-rc2. Could you grab one?
> 
> Yeah, they are different definitely.

Weird, actually, it's the same warning. I cannot see how this can happen
though. The code looks like:
        tty_ldisc_close(tty, o_ldisc);

        /* Now set up the new line discipline. */
        tty_ldisc_assign(tty, new_ldisc);
        tty_set_termios_ldisc(tty, ldisc);

        retval = tty_ldisc_open(tty, new_ldisc);


Could you provide disassembly of tty_set_ldisc? E.g. by extracting it from:
objdump -d drivers/tty/tty_ldisc.o

thanks,
-- 
js
suse labs
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