Date: Mon, 16 Dec 2024 15:40:00 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 267028] kernel panics when booting with both (zfs,ko or vboxnetflt,ko or acpi_wmi.ko) and amdgpu.ko Message-ID: <bug-267028-227-bbqE4Jip43@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-267028-227@https.bugs.freebsd.org/bugzilla/> References: <bug-267028-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D267028 --- Comment #239 from Mark Millard <marklmi26-fbsd@yahoo.com> --- 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 =3D {link =3D {tqe_next =3D 0xfffff80000000007, --=20 You are receiving this mail because: You are the assignee for the bug.=
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