[syslinux] extlinux 6.03 IPMI SOL (serial-over-lan) console not responding to input

[Gene Cumm]

On Mon, May 18, 2015 at 3:43 PM, Andrew J. Schorr via Syslinux
<syslinux at zytor.com> wrote:
> Hi,
>
> On Mon, May 18, 2015 at 10:09:12PM +0300, Ady via Syslinux wrote:


>> I am aware that these are not the type of comments you would hope for.
>
> I appreciate your responding.  But I feel that I have done enough testing at
> this point to demonstrate that there is a bug in extlinux 6.03's serial
> implementation.  Grub2 works fine, and older extlinux works fine.
>

> The next step is to start looking at the code.  Is there a git repository
> for this that can show the difference in the serial handling between 4.05
> and 6.03?  I have been a maintainer on some open-source projects.  At

Official: git://git.kernel.org/pub/scm/boot/syslinux/syslinux.git

My github: git://github.com/geneC1/syslinux.git

My github repo contains patches that will eventually be reflected in
the official repos.

> a certain point, enough information has been collected, and it's time to
> dive into the code or find a way to get some debugging info.  I think
> we have exhausted what can be learned from running tests with various
> configurations.

You're likely going to see the same conditions with the official 5.00
binaries where hard serial works but Serial Over Lan via the IPMI does
not.  If so, that'll help narrowing the differences.

The bad news about 4.0x to 5.00 is that a LOT of assembly code was
changed to C.  The more I think about it, examining the code will
likely be key.

-- 
-Gene