For some reason your mtrr table was not covering the last 32 megabytes
of memory. Probably you could also have fixed this by altering the
mtrr settings. See Documentation/mtrr.txt in the kernel source tree.
> As this problem has gone, there is last question (I
> hope ;-):
> How can I control amount of memory used for disk cache
> in recent kernels (2.4.18, 19)?
> ("Cached:" field in `cat /proc/meminfo`)
> I have to be sure that free memory is not used for
> caching of disk operations (or how many of it is used
> for caching)
You have to use it for something else :)
Sorry, Linux will only leave a few megabytes of memory unused,
for emergency and interrupt-time allocations.
Why is this a problem?
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