https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=267028
--- Comment #239 from Mark Millard <[email protected]> --- In: https://lists.freebsd.org/archives/freebsd-hackers/2024-December/004100.html Philipp writes: QUOTE By simple grep through sys/ I found following comment in sys/amd64/include/vmparam.h: > /* > * Virtual addresses of things. Derived from the page directory and > * page table indexes from pmap.h for precision. > [...] > * 0xfffff80000000000 - 0xfffffbffffffffff 4TB direct map The direct map is 4TB of virtuall address space mapping the physical address space 1:1 (minus the base). So I would guess this is caused by an NULL pointer converted by PHYS_TO_DMAP. END QUOTE So either: PHYS_TO_DMAP(0x0)+7 or: PHYS_TO_DMAP(0x0+7) looks likely to be involved for 0xfffff80000000007 showing up in: $209 = {link = {tqe_next = 0xfffff80000000007, -- You are receiving this mail because: You are the assignee for the bug.
