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Subject: Re: sshd signal 11 on -current
From: Paul Mather <paul@gromit.dlib.vt.edu>
In-Reply-To: <ZaiEKUf+HJC+LA4F@www.zefox.net>
Date: Thu, 18 Jan 2024 09:45:51 -0500
Cc: Mark Millard <marklmi@yahoo.com>,
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To: bob prohaska <fbsd@www.zefox.net>
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On 17 Jan 2024, at 8:51=E2=80=AFpm, bob prohaska <fbsd@www.zefox.net> =
wrote:

> On Wed, Jan 17, 2024 at 05:09:32PM -0800, Mark Millard wrote:
>>=20
>> So far it sounds like the problem requires pi4 RasPiOS
>> workstation behavior to be involved to get the problem.
>> Can you do something to avoid all use of RasPiOS, possibly
>> using a different OS on that RPi4B for some experiments?
>>=20
> I just tried a Windows 10 laptop wired into the LAN. Ssh to=20
> ns2.zefox.net and  running=20
> grep -i /var/log/messages produces five lines of grep matches,=20
> then "corrupted MAC on input....."=20
>=20
> I'm not sure which MAC (as in ethernet MAC) is being referred
> to. Might a different kind of MAC exist, unrelated to ethernet?


If this error is from SSH then it is likely unrelated to Ethernet.  It =
likely refers to Message Authentication Code (MAC), which is used to =
ensure data integrity.  See man ssh_config(5) for details.

Cheers,

Paul.=