jackd runtime fail in 11.1-RELEASE-p4 i386

[Alejandro G. Peregrina]

jackd fails to run in realtime and non-realtime mode:
 $ jackd -r -doss -r44100 -p1024 -n2 -w16 -C/dev/dsp1.0 -P/dev/dsp0.0

 jackd 0.125.0rc1 (COOKEDMODE=on)
 Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn and others.
 jackd comes with ABSOLUTELY NO WARRANTY
 This is free software, and you are welcome to redistribute it
 under certain conditions; see the file COPYING for details

 JACK compiled with System V SHM support.
 loading driver ..
 Illegal instruction (core dumped)

... leaving a jackd.core file in the current directory.

I've used jackit in my x86_64 computer and works fine!
When starting jack from rc.conf as in pkg-descr gives the same results.

Some information:
 $ sysctl dev.pcm.0.%desc
 dev.pcm.0.%desc: Realtek ALC272 (Analog 2.0+HP/2.0)
 $ sysctl dev.pcm.1.%desc
 dev.pcm.1.%desc: Realtek ALC272 (Onboard Analog Mic)
 $ ls /dev/ | grep dsp
 dsp0.0
 dsp1.0
 $ sysctl dev.hdaa.0.%desc
 dev.hdaa.0.%desc: Realtek ALC272 Audio Function Group
 $ sysctl dev.hdaa.0.nid2
 dev.hdaa.0.nid2: audio output
      Widget cap: 0x0000041d PWR STEREO
     Association: 0 (0x8001)
             OSS: pcm (pcm)
      Stream cap: 0x00000001 PCM
         PCM cap: 0x000e0560 16 20 24 bits, 44 48 96 192 KHz
      Output amp: 0x00034040 mute=0 step=64 size=3 offset=64 (-64/0dB)
 $ sysctl dev.hdaa.0.nid8
 dev.hdaa.0.nid8: audio input
      Widget cap: 0x0010051b PWR STEREO
     Association: 1 (0x0001)
      Stream cap: 0x00000001 PCM
         PCM cap: 0x000e0560 16 20 24 bits, 44 48 96 192 KHz
       Input amp: 0x80051f0b mute=1 step=31 size=5 offset=11 (-16/30dB)
     Connections: 1
           + <- nid=35 [audio mixer]