[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: Sat, 18 Mar 2023 04:20:49 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=267028

--- Comment #131 from Mark Millard <marklmi26-fbsd@yahoo.com> ---
(In reply to Mark Millard from comment #130)

Based on drm-515-kmod related materials on/for amd64
runing main [so: 14] and the type of card that happened
to be present, I saw:

22    1 0xffffffff83c00000   4fd918 amdgpu.ko
23    2 0xffffffff83a8e000    79f50 drm.ko
24    1 0xffffffff83b08000     22a8 iic.ko
25    3 0xffffffff83b0b000     30d8 linuxkpi_gplv2.ko
26    4 0xffffffff83b0f000     6320 dmabuf.ko
27    3 0xffffffff83b16000     3360 lindebugfs.ko
28    1 0xffffffff83b1a000     b350 ttm.ko
29    1 0xffffffff83b26000     a118 amdgpu_polaris11_k_mc_bin.ko
30    1 0xffffffff83b31000     6370 amdgpu_polaris11_pfp_2_bin.ko
31    1 0xffffffff83b38000     6370 amdgpu_polaris11_me_2_bin.ko
32    1 0xffffffff83b3f000     4370 amdgpu_polaris11_ce_2_bin.ko
33    1 0xffffffff83b44000     7978 amdgpu_polaris11_rlc_bin.ko
34    1 0xffffffff83b4c000    42380 amdgpu_polaris11_mec_2_bin.ko
35    1 0xffffffff83b8f000    42380 amdgpu_polaris11_mec2_2_bin.ko
36    1 0xffffffff83bd2000     5270 amdgpu_polaris11_sdma_bin.ko
37    1 0xffffffff83bd8000     5270 amdgpu_polaris11_sdma1_bin.ko
38    1 0xffffffff840fe000    5db58 amdgpu_polaris11_uvd_bin.ko
39    1 0xffffffff8415c000    2ac78 amdgpu_polaris11_vce_bin.ko
40    1 0xffffffff83bde000    21d90 amdgpu_polaris11_k_smc_bin.ko

This was from deliberately using kldload amdgpu after all the
normal boot/login load activity. No kld_list= use involved at
all.

I wonder how much your environment would crash for amdgpu loaded
this late.

FYI: The prior load activity was:

Id Refs Address                Size Name
 1  132 0xffffffff80200000  295b050 kernel
 2    1 0xffffffff82b5d000     76f8 cryptodev.ko
 3    1 0xffffffff82b65000   5b80d8 zfs.ko
 4    1 0xffffffff83a10000     3370 acpi_wmi.ko
 5    1 0xffffffff83a14000     3210 intpm.ko
 6    1 0xffffffff83a18000     2178 smbus.ko
 7    1 0xffffffff83a1b000     2220 cpuctl.ko
 8    1 0xffffffff83a1e000     3360 uhid.ko
 9    1 0xffffffff83a22000     4364 ums.ko
10    1 0xffffffff83a27000     33a0 usbhid.ko
11    1 0xffffffff83a2b000     32a8 hidbus.ko
12    1 0xffffffff83a2f000     4d00 ng_ubt.ko
13    6 0xffffffff83a34000     ab28 netgraph.ko
14    2 0xffffffff83a3f000     a238 ng_hci.ko
15    4 0xffffffff83a4a000     2668 ng_bluetooth.ko
16    1 0xffffffff83a4d000     8380 uftdi.ko
17    1 0xffffffff83a56000     4e48 ucom.ko
18    1 0xffffffff83a5b000     3340 wmt.ko
19    1 0xffffffff83a5f000     e250 ng_l2cap.ko
20    1 0xffffffff83a6e000    1bf08 ng_btsocket.ko
21    1 0xffffffff83a8a000     38b8 ng_socket.ko

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