In article <[email protected]>,
 "Richard B. Gilbert" <[email protected]> writes:

>ISTR that there have been previous references in this newsgroup. 
>Specifically, EIDE disk drivers can mask or disable interrupts  for a 
>period long enough  to cause a "lost tick".  I believe the group is 
>archived somewhere. . . .

Old old old versions of Red Hat shipped with DMA disabled
on disks.  With enough disk activity you could miss ticks.
It was trivial to provoke.


-- 
These are my opinions, not necessarily my employer's.  I hate spam.

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