Andreas Kling bf7b77e252 AK: Fix Bitmap not finding unset ranges at the end of the map ...

When we switched the Bitmap code to operating 32 bits at a time,
we neglected to look in the trailing remainder bits after the last
full 32-bit word.

This patch fixes that and adds a couple of tests for Bitmap that I
hacked up while tracking down this bug.

I found this bug when noticing that the kernel would OOM while there
were still some pages left in the physical page allocator.

2020-05-06 22:28:23 +02:00

4.3 KiB

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