Comment 315 for bug 263555

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In , Jkosina-d (jkosina-d) wrote :

(In reply to comment #85 from Martin Wilck)
> Forgive me this dumb question - if this is due to an accidental overwrite with
> random data (DMA),

It's not DMA but MMIO. The data are not that random, it is really all 0xff.

> why would the EEPROM contain only FFs afterwards? Can't we infer something from > that?

Well, we weren't able to use this to identify source of the corruption so far. We have patches that could help to point to the guilty, but first we need reliable way to restore the EEPROM contents, otherwise the debugging is almost impossible.