linux-kernel - Re: [serial] BUG: spinlock bad magic on CPU#0, swapper/0

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Date:	Sun, 12 Apr 2015 21:04:07 +0800
From:	Fengguang Wu <fengguang.wu@...el.com>
To:	Peter Hurley <peter@...leysoftware.com>
Cc:	Corey Minyard <cminyard@...sta.com>, LKP <lkp@...org>,
	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [serial] BUG: spinlock bad magic on CPU#0, swapper/0

On Sun, Apr 12, 2015 at 09:01:31AM -0400, Peter Hurley wrote:
> Hi Fengguang,
> 
> On 04/12/2015 08:41 AM, Fengguang Wu wrote:
> > Greetings,
> > 
> > 0day kernel testing robot got the below dmesg and the first bad commit is
> > 
> > git://git.code.sf.net/p/openipmi/linux-ipmi master-ipmi-rebase
> > 
> > commit ccfb59efb7a78e606516ce878d8dde4690419a5f
> > Author:     Corey Minyard <cminyard@...sta.com>
> > AuthorDate: Mon Mar 19 16:00:55 2012 -0500
> > Commit:     Corey Minyard <cminyard@...sta.com>
> > CommitDate: Fri Apr 10 20:51:46 2015 -0500
> > 
> >     serial: Add a polled interface to the 8250 driver
> >     
> >     Remove the console code from the 8250 driver and add the poll code and
> >     setup to use the console over the polled interface.
> >     
> >     FIXME - The interactions between the 8250_early and 8250 code need to
> >     be analyzed and tested.
> >     
> >     Signed-off-by: Corey Minyard <minyard@....org>
> >     
> >      drivers/tty/serial/8250.c |  227 ++++++++++++++++++++++------------------------
> >      1 file changed, 112 insertions(+), 115 deletions(-)
> 
> This is not an upstream bug.

Ah yes, sorry for the noise!

Thanks,
Fengguang
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