# DF-2304 trigger run: ssh session output died at the panic (expected);
# the full runtime evidence is the serial console capture below:

DragonFly/x86_64 (dfbsd) (ttyd0)



login: FWP: ATTACH mode=0x1 -> REAL fwohci_pci_attach(0xffffffff817b1560)
FWP: bus_alloc_resource(MEM rid=16) -> 0xfffff8008d7816e8 (allocs=1)
FWP: bus_alloc_resource(IRQ rid=0) -> 0xfffff8008d781758 (allocs=1)
FWP: bus_setup_intr(handler=0xffffffff80a7fbe0 arg=0xfffff8008f78f000) REGISTERED (setups=1 live=1)
fwohci0: OHCI version 1.0 (ROM=0)
fwohci0: No. of Isochronous channel is 32.
fwohci0: EUI64 00:00:00:00:00:00:00:00
fwohci0: fwphy_rddata: 0x2 loop=100, retry=100
fwohci0: Phy 1394 only S100, 0 ports.
fwohci0: fwphy_rddata: 0x2 loop=100, retry=100
fwohci0: Link S100, max_rec 65536 bytes.
fwohci0: max_rec 65536 -> 512
FWP: device_probe_and_attach(0xfffff8011769c6a0) INTERPOSED FAIL (ENXIO) call#1  [DF-2304 forced branch]
fwohci0: probe_and_attach failed with err=6
FWP: device_delete_child(dev=0xffffffff817b1560 child=0xfffff8011769c6a0) FROM fwohci_pci.c:352
FWP: device_delete_child(child=0xfffff8011769c6a0) returned 0
FWP: bus_teardown_intr(cookie=0xf00dcafe) ok (teardowns=1 live=0)
FWP: bus_release_resource(IRQ) ok (releases=1)
FWP: bus_release_resource(MEM) ok (releases=1)
FWP: device_delete_child(dev=0xffffffff817b1560 child=0xfffff8011769c6a0) FROM fwohci_pci.c:447
panic: Bad link elm 0xfffff8011769c6a0 prev->next != elm
cpuid = 4
Trace beginning at frame 0xfffff80117e9b5c8
device_delete_child() at device_delete_child+0x115 0xffffffff80687fb5 
device_delete_child() at device_delete_child+0x115 0xffffffff80687fb5 
fwp_device_delete_child() at fwp_device_delete_child+0x35 0xffffffff80a808e5 
fwohci_pci_add_child() at fwohci_pci_add_child+0xfd 0xffffffff80a80c8d 
bus_generic_identify() at bus_generic_identify+0x52 0xffffffff80688bc2 
bus_generic_probe() at bus_generic_probe+0x57 0xffffffff80688cb7 
boot() called on cpu#4
Uptime: 23s
Physical memory: 4060 MB