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Date:      Sun, 24 Sep 2017 14:19:26 +0200
From:      "O. Hartmann" <ohartmann@walstatt.org>
To:        Konstantin Belousov <kostikbel@gmail.com>
Cc:        "O. Hartmann" <ohartmann@walstatt.org>, FreeBSD CURRENT <freebsd-current@freebsd.org>
Subject:   Re: Dying SD memory? handle_workitem_freefile: got error 5 while accessing filesystem
Message-ID:  <20170924141926.4c6876dd@thor.intern.walstatt.dynvpn.de>
In-Reply-To: <20170924075238.GS2271@kib.kiev.ua>
References:  <20170924093151.2edfeeff@thor.intern.walstatt.dynvpn.de> <20170924075238.GS2271@kib.kiev.ua>

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Am Sun, 24 Sep 2017 10:52:38 +0300
Konstantin Belousov <kostikbel@gmail.com> schrieb:

> On Sun, Sep 24, 2017 at 09:31:51AM +0200, O. Hartmann wrote:
> > Running a NanoBSD application on a small PCEngine device, feeding the b=
ox with a
> > CURRENT (FreeBSD 12.0-CURRENT #33 r323958: Sat Sep 23 22:19:57 CEST 201=
7 amd64),
> > booting from a SD memory card.
> >=20
> > Recently, when saving configuration changes on the SD memory card, I re=
ceive these
> > strange errors:
> >=20
> > [...]
> > checksum failed: cg 0, cgp: 0xb478d1d5 !=3D bp: 0x874608df
> > checksum failed: cg 12, cgp: 0xe626d67c !=3D bp: 0x7360c12a
> > checksum failed: cg 0, cgp: 0xb478d1d5 !=3D bp: 0x874608df
> > handle_workitem_freefile: got error 5 while accessing filesystem
> > checksum failed: cg 12, cgp: 0xe626d67c !=3D bp: 0x7360c12a
> > handle_workitem_freefile: got error 5 while accessing filesystem
> > [...]
> >=20
> > I do not use MMCCAM in the kernel, but as far as I know, the problem oc=
cured in the
> > same time frame.=20
> >=20
> > The question is: is the SD memory about to die and is to be replaced or=
 is this a bug
> > introduced with the new MMCCAM stuff recently? =20
>=20
> The messages you see about 'checksum_failed' are due to recently added
> UFS feature where cylinder group blocks are checksummed, and the checksum
> is verified against the known one stored on the volume.
>=20
> Were there kernel messages about disk I/O errors before that (as opposed
> to UFS errors about checksums and SU complains) ?

Hello,

no, there were no errors before. The small box is updated on a frequent bas=
is, so I'm
sure there were no errors like those before or any other kind regarding I/O.

I recall having read the commit description about the UFS2 enhancement.

The NanoBSD image is created using UFS2/GPT partitioning scheme, if this is=
 important to
know.=20

Regards,

Oliver

--=20
O. Hartmann

Ich widerspreche der Nutzung oder =C3=9Cbermittlung meiner Daten f=C3=BCr
Werbezwecke oder f=C3=BCr die Markt- oder Meinungsforschung (=C2=A7 28 Abs.=
 4 BDSG).

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