login: <6>[drm] amdgpu kernel modesetting enabled.
Sep 21 03:43:06 dfbsd kernel: [drm] amdgpu kernel modesetting enabled.
KLD df4525demo.ko: depends on amdgpu - not available or version mismatch
linker_load_file: Unsupported file type
DF-4525: sizeof(struct amdgpu_device)=58656 adev=0xfffff8011c7c4000
DF-4525: allocated vddc_entries=0xfffff8008976ba00 vddci_entries=0xfffff8008976ba80
DF-4525: after 1st free: vddc=0xfffff8008976ba00 vddci=0xfffff8008976ba80
panic: memory chunk 0xfffff8008976ba00 is already free!
cpuid = 0
Trace beginning at frame 0xfffff80118005738
chunk_mark_free() at chunk_mark_free+0xae 0xffffffff80655dbe 
chunk_mark_free() at chunk_mark_free+0xae 0xffffffff80655dbe 
_kfree() at _kfree+0x262 0xffffffff806580e2 
amdgpu_free_extended_power_table() at amdgpu_free_extended_power_table+0x24 0xffffffff8264cab4 
df4525_event() at df4525_event+0x146 0xffffffff873bc146 
module_register_init() at module_register_init+0x49 0xffffffff806232e9 
Debugger("panic")

CPU0 stopping CPUs: 0x0000003e
 stopped
Stopped at      Debugger+0x7c:  movb    $0,0xbdaf09(%rip)
db>