Re: [Bug 273566] stray characters contaminate serial console

On 1/12/25 11:25, bob prohaska wrote:
> From: bob prohaska <fbsd@www.zefox.net>
> To: freebsd-kernel@freebsd.org
> Subject: Re: [Bug 273566] stray characters contaminate serial console
> 
> On Sun, Jan 12, 2025 at 05:02:15AM +0000, bugzilla-noreply@freebsd.org wrote:
>> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273566
>>
>> --- Comment #15 from Sulev-Madis Silber <bugs-freebsd-org916@ketas.si.pri.ee> ---
>> you currently have more hw than i do, it's all connected up too. can you test
>> it out more maybe? debugging kernels, etc. i should have multi arch usb/serial
>> switched remote lab on my own but i don't somehow eh, despite using fbsd since
> 
> Just for fun I installed a GENERIC-KASAN kernel on a Pi4 running -current,
> but far as I can tell the problem doesn't exist on aarch64 or I don't know
> how to see it. The Pi4 is providing terminal service to a Pi2 running armv7,
> which since the KASAN kernel went on the Pi4 hasn't suffered a boot
> stoppage. Neither have I seen any console messages on the Pi4 suggesting
> something amiss. I'm guessing kasan simply generates warnings, but if so
> I've not recognized any. I'll keep watching, it would really help to know
> what sort of behavior I'm looking for.
> 
> I tried to build a kasan kernel on a pi2 running armv7 but buildworld
> stopped with an unrecognized symbol. It's now building world/kernel with
> GENERIC as a sanity check, but the kasan man page suggests armv7 is
> unsupported.
> 
> If in fact armv7 does support kasan then I'll keep trying. Unfortunately
> I have only one kasan-supporting host presently but have couple spare
> Pi2 v1.1 boxes that can run armv7 if it's relevant.
> 

arm64 and amd64 only today