MFS file system corrruption

brentwilliams — Thu, 21 Nov 2013 20:44:09 GMT

Hello I am using a Kinetis K20 part on a custom board. I am testing a file system (MFS) and I notice that the following test works most of the time, but occasionally I see corruption. The test is simple. I write 50 files to flash and do a ls. The results are below. Has anyone seen something similar?

In a good case I see the following:

FOO1.XML 15001 01-31-1980 01:05:44 A FOO1.XML

FOO2.XML 15001 01-31-1980 01:05:48 A FOO2.XML

FOO3.XML 15001 01-31-1980 01:05:52 A FOO3.XML

FOO4.XML 15001 01-31-1980 01:05:54 A FOO4.XML

FOO5.XML 15001 01-31-1980 01:05:58 A FOO5.XML

FOO6.XML 15001 01-31-1980 01:06:00 A FOO6.XML

FOO7.XML 15001 01-31-1980 01:06:04 A FOO7.XML

FOO8.XML 15001 01-31-1980 01:06:08 A FOO8.XML

FOO9.XML 15001 01-31-1980 01:06:10 A FOO9.XML

FOO10.XML 15001 01-31-1980 01:06:14 A FOO10.XML

FOO11.XML 15001 01-31-1980 01:06:18 A FOO11.XML

FOO12.XML 15001 01-31-1980 01:06:20 A FOO12.XML

FOO13.XML 15001 01-31-1980 01:06:24 A FOO13.XML

FOO14.XML 15001 01-31-1980 01:06:28 A FOO14.XML

FOO15.XML 15001 01-31-1980 01:06:36 A FOO15.XML

FOO16.XML 15001 01-31-1980 01:06:40 A FOO16.XML

FOO17.XML 15001 01-31-1980 01:06:42 A FOO17.XML

FOO18.XML 15001 01-31-1980 01:06:46 A FOO18.XML

FOO19.XML 15001 01-31-1980 01:06:50 A FOO19.XML

FOO20.XML 15001 01-31-1980 01:06:52 A FOO20.XML

FOO21.XML 15001 01-31-1980 01:06:56 A FOO21.XML

FOO22.XML 15001 01-31-1980 01:07:00 A FOO22.XML

FOO23.XML 15001 01-31-1980 01:07:04 A FOO23.XML

FOO24.XML 15001 01-31-1980 01:07:06 A FOO24.XML

FOO25.XML 15001 01-31-1980 01:07:10 A FOO25.XML

FOO26.XML 15001 01-31-1980 01:07:12 A FOO26.XML

FOO27.XML 15001 01-31-1980 01:07:16 A FOO27.XML

FOO28.XML 15001 01-31-1980 01:07:20 A FOO28.XML

FOO29.XML 15001 01-31-1980 01:07:22 A FOO29.XML

FOO30.XML 15001 01-31-1980 01:07:26 A FOO30.XML

FOO31.XML 15001 01-31-1980 01:07:30 A FOO31.XML

FOO32.XML 15001 01-31-1980 01:07:34 A FOO32.XML

FOO33.XML 15001 01-31-1980 01:07:36 A FOO33.XML

FOO34.XML 15001 01-31-1980 01:07:40 A FOO34.XML

FOO35.XML 15001 01-31-1980 01:07:44 A FOO35.XML

FOO36.XML 15001 01-31-1980 01:07:46 A FOO36.XML

FOO37.XML 15001 01-31-1980 01:07:50 A FOO37.XML

FOO38.XML 15001 01-31-1980 01:07:54 A FOO38.XML

FOO39.XML 15001 01-31-1980 01:07:56 A FOO39.XML

FOO40.XML 15001 01-31-1980 01:08:00 A FOO40.XML

FOO41.XML 15001 01-31-1980 01:08:04 A FOO41.XML

FOO42.XML 15001 01-31-1980 01:08:06 A FOO42.XML

FOO43.XML 15001 01-31-1980 01:08:10 A FOO43.XML

FOO44.XML 15001 01-31-1980 01:08:14 A FOO44.XML

FOO45.XML 15001 01-31-1980 01:08:16 A FOO45.XML

FOO46.XML 15001 01-31-1980 01:08:20 A FOO46.XML

FOO47.XML 15001 01-31-1980 01:08:24 A FOO47.XML

FOO48.XML 15001 01-31-1980 01:08:28 A FOO48.XML

FOO49.XML 15001 01-31-1980 01:08:30 A FOO49.XML

FOO50.XML 15001 01-31-1980 01:08:34 A FOO50.XML

In a bad case I am seeing:

FOO1.XML 15001 01-31-1980 00:33:28 A FOO1.XML

FOO2.XML 15001 01-31-1980 00:33:32 A FOO2.XML

FOO3.XML 15001 01-31-1980 00:33:34 A FOO3.XML

FOO4.XML 15001 01-31-1980 00:33:38 A FOO4.XML

FOO5.XML 15001 01-31-1980 00:33:42 A FOO5.XML

FOO6.XML 15001 01-31-1980 00:33:44 A FOO6.XML

FOO7.XML 15001 01-31-1980 00:33:48 A FOO7.XML

FOO8.XML 15001 01-31-1980 00:33:52 A FOO8.XML

FOO9.XML 15001 01-31-1980 00:33:54 A FOO9.XML

FOO10.XML 15001 01-31-1980 00:33:58 A FOO10.XML

FOO11.XML 15001 01-31-1980 00:34:02 A FOO11.XML

FOO12.XML 15001 01-31-1980 00:34:08 A FOO12.XML

FOO13.XML 15001 01-31-1980 00:34:10 A FOO13.XML

FOO14.XML 15001 01-31-1980 00:34:14 A FOO14.XML

FOO15.XML 15001 01-31-1980 00:34:18 A FOO15.XML

FOO16.XML 15001 01-31-1980 00:34:20 A FOO16.XML

FOO17.XML 15001 01-31-1980 00:34:24 A FOO17.XML

FOO18.XML 15001 01-31-1980 00:34:28 A FOO18.XML

FOO19.XML 15001 01-31-1980 00:34:30 A FOO19.XML

FOO20.XML 15001 01-31-1980 00:34:34 A FOO20.XML

FOO21.XML 15001 01-31-1980 00:34:38 A FOO21.XML

FOO22.XML 15001 01-31-1980 00:34:40 A FOO22.XML

FOO23.XML 15001 01-31-1980 00:34:44 A FOO23.XML

FOO24.XML 15001 01-31-1980 00:34:48 A FOO24.XML

FOO25.XML 15001 01-31-1980 00:34:50 A FOO25.XML

FOO26.XML 15001 01-31-1980 00:34:54 A FOO26.XML

FOO27.XML 15001 01-31-1980 00:34:58 A FOO27.XML

FOO28.XML 15001 01-31-1980 00:35:04 A FOO28.XML

FOO29.XML 15001 01-31-1980 00:35:08 A FOO29.XML

FOO30.XML 15001 01-31-1980 00:35:10 A FOO30.XML

FOO31.XML 15001 01-31-1980 00:35:14 A FOO31.XML

FOO32.XML 15001 01-31-1980 00:35:18 A FOO32.XML

FOO33.XML 4294967295 15-31-2107 31:63:62 A FOO33.XML

FOO42.XML 15001 01-31-1980 00:35:50 A FOO42.XML

FOO43.XML 15001 01-31-1980 00:35:56 A FOO43.XML

FOO44.XML 15001 01-31-1980 00:36:00 A FOO44.XML

FOO45.XML 15001 01-31-1980 00:36:04 A FOO45.XML

FOO46.XML 15001 01-31-1980 00:36:08 A FOO46.XML

FOO47.XML 15001 01-31-1980 00:36:10 A FOO47.XML

FOO48.XML 15001 01-31-1980 00:36:14 A FOO48.XML

FOO49.XML 15001 01-31-1980 00:36:18 A FOO49.XML

FOO50.XML 15001 01-31-1980 00:36:20 A FOO50.XML

I monitor the physical address I am writing to and output to a terminal window. In both of these cases the last physical address it is writing to is the same.

So I believe it is getting into the flash.

Thanks,

Brent

Re: MFS file system corrruption

lucky06200 — Wed, 08 Jan 2014 09:17:16 GMT

I have sometimes same problem. I do not have explaination about.

I use also MFS, but on a K60 CPU.

Directory entry (and particullary date/time) seems to be corrupted.

On filezilla (accessing file thru ftp) this is a problem, filezillz do not want use file with incorrect date/time.

Re: MFS file system corrruption

pbanta — Tue, 18 Nov 2014 21:27:45 GMT

Hi,

Did you ever discover the cause of this issue?

Thanks.

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