Am Sun, 24 Sep 2017 10:52:38 +0300 Konstantin Belousov <kostik...@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 box > > with a > > CURRENT (FreeBSD 12.0-CURRENT #33 r323958: Sat Sep 23 22:19:57 CEST 2017 > > amd64), > > booting from a SD memory card. > > > > Recently, when saving configuration changes on the SD memory card, I > > receive these > > strange errors: > > > > [...] > > checksum failed: cg 0, cgp: 0xb478d1d5 != bp: 0x874608df > > checksum failed: cg 12, cgp: 0xe626d67c != bp: 0x7360c12a > > checksum failed: cg 0, cgp: 0xb478d1d5 != bp: 0x874608df > > handle_workitem_freefile: got error 5 while accessing filesystem > > checksum failed: cg 12, cgp: 0xe626d67c != bp: 0x7360c12a > > handle_workitem_freefile: got error 5 while accessing filesystem > > [...] > > > > I do not use MMCCAM in the kernel, but as far as I know, the problem > > occured in the > > same time frame. > > > > 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? > > 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. > > 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 basis, 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. Regards, Oliver -- O. Hartmann Ich widerspreche der Nutzung oder Übermittlung meiner Daten für Werbezwecke oder für die Markt- oder Meinungsforschung (§ 28 Abs. 4 BDSG).
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