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

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 17 May 2023 23:26:52 UTC

--- Comment #175 from Graham Perrin <grahamperrin@freebsd.org> ---
(In reply to George Mitchell from comment #174)

> … crashes during single user mode, but regrettably they leave no trace 
> … the root partition is still mounted read-only. …

Hint (whilst in single-user mode): 

mount -uw / && zfs mount -a

sysrc dumpdev

– you'll probably find a different device, typically the swap partition. 

sysrc dumpdir

– you'll probably find /var/crash.

service dumpon describe

– if you boot in single user mode after a kernel panic, then /var/crash will
not yet include information about the panic.

service savecore describe

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