RE: [Syllable-developer] FAT file read bug on big file

[Kaj de V. <syl...@fr...>]

> Kaj de Vos wrote:
> > I was burning the latest Ubuntu CDs when I found a strange 
> > bug. The ISO was downloaded with Windows 2000 on a FAT partition. It 
> > turned out that the first time reading this file after booting into
> Syllable 
> > and all odd (literally!) attempts in the same session after that
> result 
> > in incorrect data. I checked that the file was actually correct, and
> all 
> > even attempts yield the correct data.
> 
> Eurgh.  Heres one small thing to try; run md5sum under the control of
> strace and watch what it does (via. the kernel log) both when it is
> successful and when it fails.  If we have that we can compare and look
> for "obvious" problems, at least.
> 
> -- 
> Vanders

It gets even stranger. I can't reproduce the bug anymore. I didn't change 
the file, so it must be due to other files that I put on that FAT 
partition. Apparently the bug is triggered by a particular configuration 
of free space or something like that, eventhough it is a read bug.

Kaj