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

[Peter Hurley <peter@hurleysoftware.com>]

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@mvista.com>
> AuthorDate: Mon Mar 19 16:00:55 2012 -0500
> Commit:     Corey Minyard <cminyard@mvista.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@acm.org>
>     
>      drivers/tty/serial/8250.c |  227 ++++++++++++++++++++++------------------------
>      1 file changed, 112 insertions(+), 115 deletions(-)

This is not an upstream bug.

Regards,
Peter Hurley