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(a)mvista.com&gt; > AuthorDate: Mon Mar 19 16:00:55 2012 -0500 > Commit: Corey Minyard <cminyard(a)mvista.com&gt; > 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(a)acm.org&gt; > > drivers/tty/serial/8250.c | 227 ++++++++++++++++++++++------------------------ > 1 file changed, 112 insertions(+), 115 deletions(-) This is not an upstream bug.