[Bug 267028] kernel panics when booting with both (zfs,ko or vboxnetflt,ko or acpi_wmi.ko) and amdgpu.ko

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From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 30 Dec 2024 11:36:35 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=267028

--- Comment #342 from Andriy Gapon <avg@FreeBSD.org> ---
Also, this is strange:
> kernel trap 22 with interrupts disabled
Trap 22 is T_DNA "FPU device not available".
It can happen when kernel executes floating-point (or some extended
instruction) without enabling FPU mode first.

Perhaps, try modifying trap() in sys/amd64/amd64/trap.c to unconditionally
panic for kernel-side T_DNA.

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