if_bfe/uhci: storm interrupt Fatal trap 12

[pcasidy at casidy.com]

On  4 Mar, Doug White wrote:

> 
> Hm ... dunno. You might try one of the RELENG_5 snapshots that will be
> coming out shortly as we get into the 5.4-R release cycle. There is some
> improvements to interrupt routing in there.
> 

In fact I have try the CURRENT SNAP (2005 february snap) because I can
get a call stack.

Here is the steps I perform to get to the call stack.

1- I boot with the snapshot miniinst
2- Selecting keymap (french accent)
3- Fixit mode
4- Emergency shell
5- using Alt-F4 to go to the terminal
6- typing: "ifconfig bfe0 192.168.1.1" => the shell freeze
7- using Alt-F1 to go back to the 1st terminal where there is a panic
   message:
   <<<<<<< handwritten typescript
cpuid = 0
KDB: enter: panic
[thread pid 29 tid 100030 ]
Stopped at      kdb_enter+0x2b: nop
db> where  -- command entered
Tracing pid 29 tid 100030 td 0xc2ff1000
kdb_enter(c0823108) at kdb_enter+0x2b
panic(c083ca28,deadc000,c07c9462,0,80000000) at panic+0x127
vm_fault(c1459000,deadc000,1,0,c2ff1000) at vm_fault+0x1e1
trap_pfault(e5e61c50,0,deadc0ee) at trap_pfault+0x13b
trap(c0830018,10,10,c3105000,c3102400) at trap+0x335
calltrap() at calltrap+0x5
--- trap 0xc, eip = 0xc07a810, esp = 0xe5e61c90, ebp = 0xe5e61c98 ---
_bus_dmamap_unload(c3102400,c3104540) at _bus_dmamap_unload+0x16
bfe_rx_ring_free(c3105000,c3105000,c3105000,e5e61cd8,c04dd0a3) at
   bfe_rx_ring_free+0x50
bfe_stop(c3105000,400,c3105000,e5e61cf4,c04dcae7) at bfe_stop+0x45
bfe_init_locked(c3105000) at bfe_init_locked+0x33
bfe_intr(c3105000) at bfe_intr+0x9f
ithread_loop(c2fe9500,e5e61d48,c2fe9500,c0601a54,0) at
   ithread_loop+0x120
fork_exit(c0601a54,c2fe9500,e5e61d48) at fork_exit+0xa4
fork_trampoline() at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xe5e61d7c, ebp = 0 ---
db> 
    >>>>>>

I hope there is not a lot of mistakes by copying the trace by hand.



Phil.