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Page Allocation

Question Text​

student@os:~/.../lab/support/static-dynamic$ size hello-static
text    data     bss     dec     hex filename
893333   20996    7128  921457   e0f71 hello-static

How many bytes should we add to the .data section to make its size 28 KB, instead of 24 KB?

Question Answers​

  • 1 KB

  • 4 KB

  • 3580 bytes

  • 3581 bytes

Feedback​

The total size must be 1 byte over the 24 KB threshold to cause a new page allocation. So in order to get that past the current size of 20996, we need 3581 bytes:

student@os:~$ echo "24 * 1024 + 1 - 20996" | bc
3581