crash in iflib_fast_intr

[peter.blok at bsd4all.org]

Hi,

A kernel without option EARLY_AP_STARTUP crashes in if lib_fast_intr. Since GENERIC now has EARLY_AP_STARTUP, this probably got unnoticed. Problem is reproducible.

KDB: stack backtrace:
#0 0xffffffff805cec97 at kdb_backtrace+0x67
#1 0xffffffff80584816 at vpanic+0x186
#2 0xffffffff80584683 at panic+0x43
#3 0xffffffff8090f222 at trap_fatal+0x322
#4 0xffffffff8090f3ec at trap_pfault+0x1bc
#5 0xffffffff8090eaa0 at trap+0x280
#6 0xffffffff808f35e1 at calltrap+0x8
#7 0xffffffff806a202d at iflib_fast_intr+0x3d
#8 0xffffffff8054963b at intr_event_handle+0x9b
#9 0xffffffff80965f38 at intr_execute_handlers+0x48
#10 0xffffffff8096b1cf at lapic_handle_intr+0x3f
#11 0xffffffff808f3cc7 at Xapic_isr1+0xb7
#12 0xffffffff805b994a at sched_idletd+0x37a
#13 0xffffffff805460f5 at fork_exit+0x85
#14 0xffffffff808f3b1e at fork_trampoline+0xe

Peter