On Mon, Jun 9, 2014 at 5:25 PM, Tony Luck [off-list ref] wrote:

On Sat, May 3, 2014 at 3:16 PM, Greg Kroah-Hartman
[off-list ref] wrote:

quoted

quoted

quoted

quoted

quoted

 drivers/tty/serial/8250/8250_early.c | 138 ++++-------------------------------
 drivers/tty/serial/8250/Kconfig      |   1 +
 2 files changed, 16 insertions(+), 123 deletions(-)

Hi Greg, Rob

This one in tty-next breaks booting: "console=uart8250,io,0x3f8,115200".
No early console and regular console anymore.

It should produce "early con and regular con".

This is what I get for running checkpatch and converting
simple_strtoul to kstrto* which are not so equivalent. kstrto* will
not convert things such as 115200n8 to a number.

Greg, Do you want a fix or for me to respin the series? The fix looks like this:

As this is in my tree now (right?), I need a fix to apply to it.

Nevermind, you already sent it...

Linus' tree (HEAD=963649d735c8) is spitting out all sorts of garbage
on the serial console - as if the baud rate is being periodically set
to something weird, and then back to 112500.  I see over a dozen
blocks of junk interspersed with good output.

Is there any correlation of the garbage to printks of console enabled messages?

This in on ia64 with "console=uart,io,0x3f8" on the command line.

Does "console=ttyS0,115200" or "console=uart,io,0x3f8,115200" work?

You will need this fix for the 2nd one to work:

commit e26f1db9b8d74617519e50b41749900d0a257406
Author: Rob Herring [off-list ref]
Date:   Wed Apr 30 19:48:29 2014 -0500

    tty/serial: fix generic earlycon option parsing

Rob

git bisect pointed me here:

d2fd6810a823bcde1ee232668f5689837aafa772 is first bad commit
commit d2fd6810a823bcde1ee232668f5689837aafa772
Author: Rob Herring [off-list ref]
Date:   Fri Apr 18 17:19:56 2014 -0500

    tty/serial: convert 8250 to generic earlycon

-Tony