there have been rumours about Triton DMA causing filesystem corruption. It
seems that these rumours are true. I just got a definite feedback of
someone who gets filesystem corruption when copying large amounts of data
from an ext2fs to an vfat filesystem. The problem was perfectly
reproducible. After disabling the Triton DMA support the problem was gone.
Maybe the default should be changed to "no" for triton DMA. Additionally
the configure.help should be corrected. Currently it states:
"It is safe to say Y to this question".
The linux philosophy is to default to the safe configuration. Several
people have reported problems when Triton DMA is enabled. I could not
reproduce the problem myself although we have a large number of machines
and are using triton DMA everywhere. I'll try to collect more data in
order to get a picture if only certain hardware is affected by this
problem.
Hubert