Re: zfsloader: messy output on Dell iDrac serial console

> On 7 Apr 2018, at 7:21, Julian Elischer <julian_at_freebsd.org> wrote:
> 
> running on *some* Dell servers the serial console looks messed up at the time of the FreeBSD menu.
> it looks like it's dropping (or adding? but that's less likely) characters.
> 
>  |  5. [K]ernel: kernel (1 of 2)           |  .- .                    -.
>  |  6. Configure Boot [O]ptions...         |2  --| y/       -.       -/`   -o/
>  |137. Select Boot [E]nvironment...        | `:`                  `:`         ::/sy++:.
>  |                                         H|     .-- `--.     --  /6H`:                          :`
>  |                                         | .---.....----.
> 
> IS there an RTS/CTS input we should be attending to?
> 
> I will add that some of the other modules (e.g. the mfi raid setup section) also get affected,
> so it's not just a bug in our code.

I’m using Serial-Over-LAN via ipmi/drac and am noticing this too on a Dell C6220,
don’t know when this started though, It’s only recently that I’m working on
this kind of hosts. It drives the xterm/rxvt crazy, but it’s only the output from the
boot/loader, once the kernel takes over, all is back to normal. the serial speed is
set to 115200, but changing it as far as i remember did not help. will try lowering soon.
I had to disable the menu to get some sense of the output, and usually have to hit ^B to remove most of the
garbage.