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Date:      Wed, 1 Mar 2017 21:20:13 +0100
From:      Michael Tuexen <tuexen@fh-muenster.de>
To:        Shawn Webb <shawn.webb@hardenedbsd.org>
Cc:        bob prohaska <fbsd@www.zefox.net>, freebsd-arm@freebsd.org
Subject:   Re: Odd-looking serial console prompt on RPI2
Message-ID:  <4194F030-4E5C-4EB6-82D7-FD725E3B7CEF@fh-muenster.de>
In-Reply-To: <20170301200112.ymwkfd64tzz5f3b2@mutt-hbsd>
References:  <20170227195647.GA91329@www.zefox.net> <20170301200112.ymwkfd64tzz5f3b2@mutt-hbsd>

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> On 1 Mar 2017, at 21:01, Shawn Webb <shawn.webb@hardenedbsd.org> =
wrote:
>=20
> On Mon, Feb 27, 2017 at 11:56:47AM -0800, bob prohaska wrote:
>> Recently the serial console prompt on an RPI2 running =20
>> FreeBSD 12.0-CURRENT #15 r314322
>>=20
>> has become corrupted. The initial output from U-boot and
>> the early part of the boot phase looks normal, but here it goes off:
>>=20
>> Release APs
>> WARNING: WITNESS option enabled, expect reduced performance.
>> random: unblocking device.
>> Trying to mount root from ufs:/dev/mmcsd0s2a [rw,noatime]...
>> warning: no time-of-day clock registered, system time will not be set =
accurately
>> Setting hostid: 0x908fd2cStarting file system che/dev/mmcsd0s2a: FILE =
SYSN; SKIPPKS
>> /dev2a: clea66 free rags, 13cks, 1.9ntation)/dev/da0p3: FILE SYSTEM =
KIPPING /dev/da0n, 45357(260308 34432 bl2% fragm)
>> /dev/da0p4: FILE SYSTEM KIPPING /dev/da0n, 3663539 fragsblocks, =
0gmentati/dev/da0p1: FILE SYSTEM KIPPING /dev/da0n, 16010(118 fra18 =
blockfragmentMounting local file syste.
>> ELF ldconfig path: /lib  /usr/li /usr/lo/usr/loccc48 =
/uslib/grapr/local//usr/locpencollalocal/li5.20/macusr/loca4 =
/usr/lm37/lib al/llvm3Setting hostname: www.ze.
>> Feeding entropy:.
>>=20
>> There are a few dropped characters in the output from fsck, for =
example.
>>=20
>> Finally, the login prompt looks like this:
>>=20
>> n: eBSD/arm (www.zefottyu0)
>>=20
>> Any attempt to type causes the line above to repeat without echo of =
the
>> typed characters at each keystroke.
>>=20
>> If anybody has a hint what's wrong I'd be grateful. One thing I =
haven't
>> done is reboot the host driving the FTDI usb-serial adapter. It's =
been
>> perfectly stable for more than a month running r311959, so it seems =
an
>> unlikely culprit.=20
>>=20
>> Thanks for reading,
>>=20
>> bob prohaska
>=20
> Hey Bob,
>=20
> I've got the same issue on the RPI3. Using HDMI instead of serial =
works
> for me, except that doing so is not typical of how I use the RPI3.
>=20
> I'll soon test on the OverDrive 1000.
Interesting... Let us know what works and what doesn't...

Best regards
Michael
>=20
> --=20
> Shawn Webb
> Cofounder and Security Engineer
> HardenedBSD
>=20
> GPG Key ID:          0x6A84658F52456EEE
> GPG Key Fingerprint: 2ABA B6BD EF6A F486 BE89  3D9E 6A84 658F 5245 =
6EEE


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