ciphysink: loaded; hw.ciphysink_fixcheck=1 then hw.ciphysink_fire=1
ciphysink-fix: ifmedia_init + explicit IFM_NONE entry (the fixed ciphy path)
ciphysink-fix: calling ifmedia_set(IFM_ETHER|IFM_NONE) -- must NOT panic
ciphysink-fix: survived; ifm_cur=0xfffff8004f102640 (non-NULL keeps ciphy_service safe)
ciphysink: ifmedia_init (empty list)
ciphysink: list walk done, media=0x0; calling ifmedia_set (mii.c:244)
ifmedia_set: no match for 0x0/0xffffffff
panic: ifmedia_set
cpuid = 0
Trace beginning at frame 0xfffff8011831b758
ifmedia_set() at ifmedia_set+0x53 0xffffffff807432b3 
ifmedia_set() at ifmedia_set+0x53 0xffffffff807432b3 
ciphysink_fire() at ciphysink_fire+0x8e 0xffffffff8260015e 
sysctl_root.isra.5() at sysctl_root.isra.5+0x166 0xffffffff80683d06 
userland_sysctl() at userland_sysctl+0x111 0xffffffff806840a1 
sys___sysctl() at sys___sysctl+0x74 0xffffffff80684204 
Debugger("panic")

CPU0 stopping CPUs: 0x0000003e
 stopped
Stopped at      Debugger+0x7c:  movb    $0,0xbdaf09(%rip)
db> 
---
[serial console capture via `vm.sh log 60`, taken immediately after the
 run; guest subsequently reset with `vm.sh reset with-src`. The lines
 above the module output are the tail of the DF-4958 run on the same
 boot (ledleak: ... 20000 sbufs leaked x2), omitted here for clarity.]