CRC errors when continuous fseek/fputs on JFFS2

[Jörn Engel]

On Mon, 15 May 2006 17:46:06 +0200, Jörn Engel wrote:
> 
> fopen(...,"w") will set fpos to 0.  fseek(..., -4, SEEK_CUR) then sets
> it _back_.  I would assume that an integer underflow happens next and
> fpos is close to 2^31, 2^32, 2^63 or 2^64.  What is certain is that
> your testcase is not a valid piece of code.

I am an idiot.  fseek doesn't go negative, as you write first.

> Can you try to change your testcase in two ways:
> o replace fopen/fseek/fwrite etc. with open/seek/write etc.
> o seek to something large directly after open
> and retest with that?

However, I always dislike extra layers when debugging.  So
replacing fopen and friends with open is still a good idea.

Jörn

-- 
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