4c57d6d555
When a superpage mapping is destroyed and the original page table page containing 4KB mappings that was being held in reserve is deallocated, the recently introduced user page table page count was not being decremented. Consequentially, the count was wrong and would grow over time. For example, after multiple iterations of "buildworld", I was seeing implausible counts, like the following: vm.pmap.kernel_pt_page_count: 2184 vm.pmap.user_pt_page_count: 2280849 vm.pmap.pv_page_count: 106 With this change, I now see: vm.pmap.kernel_pt_page_count: 2183 vm.pmap.user_pt_page_count: 344 vm.pmap.pv_page_count: 105 Reviewed by: kib, markj Differential Revision: https://reviews.freebsd.org/D33276 |
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| acpica | ||
| amd64 | ||
| conf | ||
| ia32 | ||
| include | ||
| linux | ||
| linux32 | ||
| pci | ||
| sgx | ||
| vmm | ||
| Makefile | ||