linux-kernel - Re: Console stops with calltrace on cavium octeon2 68XX EVB

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Message-ID: <1489756680.19767.55.camel@linux.intel.com>
Date:   Fri, 17 Mar 2017 15:18:00 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Arun Chandran <achandran@...sta.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-serial@...r.kernel.org
Cc:     jason.uy@...adcom.com, scott.branden@...adcom.com,
        ray.jui@...adcom.com, wangkefeng.wang@...wei.com,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        jslaby@...e.com, heikki.krogerus@...ux.intel.com
Subject: Re: Console stops with calltrace on cavium octeon2 68XX EVB

On Fri, 2017-03-17 at 18:30 +0530, Arun Chandran wrote:
> Hi,
> 
> I got this on my cavium octeon2 68XX EVB console when booting the
> latest kernel(4.11.0-rc2-00235-gd528ae0).

> And I bisected and reached at this commit
> "6a171b2 serial: 8250_dw: Allow hardware flow control to be used"
> 
> When I printed the value of my "d->clk" inside dw8250_set_termios() it
> was zero.
> Then the below change is solving the problem for me.(No calltrace
> console works fine)

> Can anybody please comment on this?

Have you seen

https://www.spinics.net/lists/linux-serial/msg25483.html

https://patchwork.kernel.org/patch/9603947/

?

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