snd_es137x & -CURRENT, /dev/dsp: Invalid argument -- Could not mmap /dev/dsp - linux emulation problem?

Hi list,

I am having some problems using my sound card while playing OpenGL games 
on 7.0-CURRENT.

The same game (wolfenstein enemy territory) worked on 6.1-STABLE with 
the same sound cards, on a install I'm still keeping on another disk.



p.s: sound works on everything else (amarok, cat /bin/ls > /dev/dsp, 
etc) that's not linux emulated.



 From the game:
... snip ...
----- finished R_Init -----

------- sound initialization -------
/dev/dsp: Invalid argument
Could not mmap /dev/dsp
............




truss output:
... snip ...
linux_open("/dev/dsp",0x2,01)                    = 132 (0x84)
linux_getuid(0x81586d0,0x2840cff4,0x1,0x2,0x81aad20) = 1001 (0x3e9)
setresuid(0xffffffff,0x3e9,0xffffffff,0x2,0x2840cff4) = 0 (0x0)
linux_ioctl(0x84,0x8004500f,0xbfbfe854,0x2,0x81aad20) = 0 (0x0)
linux_ioctl(0x84,0x8004500b,0xbfbfe85c,0x2,0x81aad20) = 0 (0x0)
linux_ioctl(0x84,0xc0045003,0xbfbfe858,0x2,0x81aad20) = 0 (0x0)
linux_ioctl(0x84,0xc0045002,0x926d3b4,0x2,0x81aad20) = 0 (0x0)
linux_ioctl(0x84,0xc0045005,0xbfbfe860,0x10,0x81aad20) = 0 (0x0)
linux_ioctl(0x84,0x8010500c,0xbfbfe844,0x10,0x81aad20) = 0 (0x0)
linux_mmap(0xbfbfe820,0x10000,0xbfbfe858,0x2,0x81aad20) ERR#22 'Invalid 
argument'
write(2,"/dev/dsp: Invalid argument\n",27)       = 27 (0x1b)
write(2,"Could not mmap /dev/dsp\n",24)          = 24 (0x18)
.............



$ uname -a:
FreeBSD nexus.bsdlan.org 7.0-CURRENT FreeBSD 7.0-CURRENT #1: Sat Jun  9 
15:26:23 WEST 2007     klr_at_nexus.bsdlan.org:/usr/obj/usr/src/sys/NEXUS  i386


soundcards:
pcm0: <Creative CT5880-C> port 0xb400-0xb43f irq 17 at device 9.0 on pci1
pcm0: <SigmaTel STAC9708/11 AC97 Codec>
pcm0: [ITHREAD]
pcm0: <Playback: DAC1,DAC2 / Record: ADC>
pcm1: <AudioPCI ES1373-B> port 0xb800-0xb83f irq 21 at device 10.0 on pci1
pcm1: <TriTech TR28023 AC97 Codec>
pcm1: [ITHREAD]
pcm1: <Playback: DAC1,DAC2 / Record: ADC>



$ sysctl -a | egrep '(snd|pcm|sound)':

hw.snd.latency_profile: 1
hw.snd.latency: 5
hw.snd.report_soft_formats: 1
hw.snd.feeder_buffersize: 16384
hw.snd.feeder_rate_round: 25
hw.snd.feeder_rate_max: 2016000
hw.snd.feeder_rate_min: 1
hw.snd.verbose: 1
hw.snd.maxautovchans: 16
hw.snd.default_unit: 0
hw.snd.version: 2007060100/i386
dev.pcm.0.%desc: Creative CT5880-C
dev.pcm.0.%driver: pcm
dev.pcm.0.%location: slot=9 function=0
dev.pcm.0.%pnpinfo: vendor=0x1274 device=0x5880 subvendor=0x1274 
subdevice=0x8001 class=0x040100
dev.pcm.0.%parent: pci1
dev.pcm.0.eapd: 1
dev.pcm.0.play.vchans: 4
dev.pcm.0.play.vchanrate: 48000
dev.pcm.0.play.vchanformat: s16le
dev.pcm.0.rec.vchans: 1
dev.pcm.0.rec.vchanrate: 48000
dev.pcm.0.rec.vchanformat: s16le
dev.pcm.0.buffersize: 4096
dev.pcm.0.spdif_enabled: 0
dev.pcm.0.latency_timer: 64
dev.pcm.0.polling: 0
dev.pcm.1.%desc: AudioPCI ES1373-B
dev.pcm.1.%driver: pcm
dev.pcm.1.%location: slot=10 function=0
dev.pcm.1.%pnpinfo: vendor=0x1274 device=0x1371 subvendor=0x1274 
subdevice=0x1371 class=0x040100
dev.pcm.1.%parent: pci1
dev.pcm.1.play.vchans: 4
dev.pcm.1.play.vchanrate: 48000
dev.pcm.1.play.vchanformat: s16le
dev.pcm.1.rec.vchans: 1
dev.pcm.1.rec.vchanrate: 48000
dev.pcm.1.rec.vchanformat: s16le
dev.pcm.1.buffersize: 4096
dev.pcm.1.latency_timer: 64
dev.pcm.1.polling: 0




Installed linux ports (relevant to the case):

linux-xorg-libs-6.8.2_5 Xorg libraries, linux binaries
linux_base-fc-4_9   Base set of packages needed in Linux mode (for 
i386/amd64)


Nvidia driver:
nvidia-driver-1.0.9746_5 NVidia graphics card binary drivers for 
hardware OpenGL ren


$ kldstat
Id Refs Address    Size     Name
 1    9 0xc0400000 45f324   kernel
 2    1 0xc0860000 26318    linux.ko
 3    1 0xc0887000 6d3a4c   nvidia.ko
 4    1 0xc429c000 a1000    zfs.ko

device sound and device es_137x compiled directly in the kernel.


I'm out of ideas, what could be causing this problem ? It works 
flawlessly on 6.1-STABLE.


If anyone needs more information to track this down, please let me know.


Best regards,

Hugo