linux-kernel - Re: Oops after merge of tty-next

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Message-ID: <20120724105822.22b90e94@bob.linux.org.uk>
Date:	Tue, 24 Jul 2012 10:58:22 +0100
From:	Alan Cox <alan@...ux.intel.com>
To:	Ian Abbott <abbotti@....co.uk>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Ian Abbott <ian.abbott@....co.uk>,
	lkml <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...uxfoundation.org>
Subject: Re: Oops after merge of tty-next

> Sorry for the late reply.  I'm using Gentoo Linux built from source
> for ~amd64 (unstable).

Thanks

> The crashes all seem to be while the devfs process is running.  One 
> thing strange I noticed is that I'm using Gentoo's "OpenRC" boot
> system, but the crashes only occur when it is configured to start
> services in parallel (rc_parallel="YES" in /etc/rc.conf).

I've not managed to duplicate this yet but I suspect there is a
locking bug in one of the paths where devfs is opening the tty
multiple times in parallel.

I may have to try building a stress tester for that.

Alan
 

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