linux-kernel - Re: [serial: 8250_lpss] a13e19cf3d: BUG: kernel hang in boot stage

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Date:   Mon, 24 Oct 2016 12:18:09 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Fengguang Wu <fengguang.wu@...el.com>
Cc:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        LKP <lkp@...org>, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [serial: 8250_lpss] a13e19cf3d: BUG: kernel hang in boot stage

On Mon, 2016-10-24 at 10:13 +0800, Fengguang Wu wrote:
> Hi Andy,
> 
> On Sat, Oct 22, 2016 at 07:40:14PM +0300, Andy Shevchenko wrote:
> > On Mon, 2016-09-05 at 18:15 +0300, Andy Shevchenko wrote:
> > > +Heikki
> > > 
> > > On Sat, 2016-09-03 at 16:25 +0800, kernel test robot wrote:
> > > > Greetings,
> > > > 
> > > > 0day kernel testing robot got the below dmesg and the first bad
> > > > commit
> > > > is
> > > 
> > > Briefly tested I have hang issues *with* or *without* the
> > > mentioned
> > > commit if under hang you meant no getty available on serial
> > > console.
> > > Otherwise I see output from kernel till 
> > > 
> > > [   61.625900] raid6test: complete (2429 tests, 0 failures)
> > > [   61.671165] BIOS EDD facility v0.16 2004-Jun-25, 0 devices
> > > found
> > > [   61.678004] EDD information not available.
> > > [   61.714036] ALSA device list:
> > > [   61.717459]   #0: Dummy 1
> > > [   61.720480]   #1: MTPAV on parallel port at 0x378
> > > 
> > > Attached defconfigs per commit I have tested (also diff between
> > > mine
> > > and
> > > yours when I did make savedefconfig).
> > > 
> > > So, may I ask what exact hardware you are using to test this one?
> > 
> > May I ask beloved LKP team what the status of the issue is? Shall we
> > close it or there is more information coming?
> 
> Please close the issue.
> 
> I tried rebuild the kernel and redo the tests, and find the new kernel
> no longer has early boot hang. Sorry for the noise!

Thank you for confirming!

It's really good that we have 0-day LKP testing established.

-- 
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Intel Finland Oy