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amd64 kernel dies in audio_calcwater on boot


a kernel compiled from -current source cvs updated at Sep 8 21:23 MEST
crashes on an Asus M3A78 board during boot while trying to set up audio0

If can provide more info to get this sorted out, please let me know.


hdaudio0 at pci0 dev 20 function 2: HD Audio Controller
hdaudio0: interrupting at ioapic0 pin 16
hdafg0 at hdaudio0 vendor 0x1106 product 0xE721 nid 0x01 (firmware 
hdafg0: DAC0:10, Analog Speaker: Jack (Green, 1C)
hdafg0: DAC0:24, Analog Speaker: Jack (Orange, 22)
hdafg0: DAC0:11, Analog Speaker: Jack (Black, 19)
hdafg0: DAC0:25, Analog Speaker: Jack (Grey, 23)
hdafg0: DAC0:10, Analog HP Out: Jack (Green, 1D)
hdafg0: ADC1:13, Analog Mic In: Jack (Pink, 1A)
hdafg0: ADC1:13, Analog CD: Fixed Function (Unknown, 1F)
hdafg0: ADC1:13, Analog Mic In: Jack (Pink, 1E)
hdafg0: ADC1:13, Analog Line In: Jack (Blue, 1B)
hdafg0: DAC2:12, Digital Digital Other Out: Fixed Function (Unknown, 20)
hdafg0: 8ch/2ch 48000Hz
audio0 at hdafg0: full duplex, independent
uvm_fault(0xffffffff8060b3a0, 0x0, 1) -> e
fatal page fault in supervisor mode
trap type 6 code 0 rip ffffffff801298b9 cs 8 rflags 10287 cr2  10 cpl 8 rsp 
kernel: page fault trap, code=0
Stopped in pid 0.1 (system) at  netbsd:audio_calcwater+0xb:     movq    0x10(%ra
db{0}> bt
audio_calcwater() at netbsd:audio_calcwater+0xb
audiosetinfo() at netbsd:audiosetinfo+0x4d1
audio_set_defaults() at netbsd:audio_set_defaults+0xdd
audioattach() at netbsd:audioattach+0x18f
config_attach_loc() at netbsd:config_attach_loc+0x15d
audio_attach_mi() at netbsd:audio_attach_mi+0x2d
hdaudio_afg_attach() at netbsd:hdaudio_afg_attach+0xdd0
config_attach_loc() at netbsd:config_attach_loc+0x15d
hdaudio_attach_fg() at netbsd:hdaudio_attach_fg+0xce
hdaudio_attach() at netbsd:hdaudio_attach+0x4c0
hdaudio_pci_attach() at netbsd:hdaudio_pci_attach+0x16d
config_attach_loc() at netbsd:config_attach_loc+0x15d
pci_probe_device() at netbsd:pci_probe_device+0x2e7
pci_enumerate_bus() at netbsd:pci_enumerate_bus+0x139
pcirescan() at netbsd:pcirescan+0x20
pciattach() at netbsd:pciattach+0x17b
config_attach_loc() at netbsd:config_attach_loc+0x15d
mp_pci_scan() at netbsd:mp_pci_scan+0xa5
mainbus_attach() at netbsd:mainbus_attach+0x215
config_attach_loc() at netbsd:config_attach_loc+0x15d
cpu_configure() at netbsd:cpu_configure+0x26
main() at netbsd:main+0x1db

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