Howdy,
I recently added an Adaptec SCSI card (Adaptec 2940 Ultra SCSI
adapter) to my system. Since then I can no longer run anything that
accesses the sound card (AudioPCI ES1371) without winning a Fatal Trap
12.
A friend of mine suggested that the SCSI card and the sound card may
be trying to access the same DMA channel. However, I am not sure how
figure out which DMA channel is being used for either device.
Can anybody tell me if this theory holds any water? And if so, do you
know how I can modify things to make this work again?
Thanks!
Mike
dmesg output:
pcm0: <AudioPCI ES1371> port 0x1000-0x103f irq 11 at device 15.0 on
pci0
ahc0: <Adaptec 2940 Ultra SCSI adapter> port 0x1400-0x14ff mem
0x48000000-0x48000fff irq 11 at device 13.0 on pci0
ahc0: aic7880 Single Channel A, SCSI Id=7, 16/255 SCBs
da0 at ahc0 bus 0 target 0 lun 0
da0: <SEAGATE ST34371N 0338> Fixed Direct Access SCSI-2 device
da0: 10.000MB/s transfers (10.000MHz, offset 15), Tagged Queueing
Enabled
da0: 4148MB (8496960 512 byte sectors: 255H 63S/T 528C)
uname -a output:
FreeBSD adsl-63-195-107-202.dsl.snfc21.pacbell.net 4.1-STABLE FreeBSD
4.1-STABLE #1: Sat Sep 9 14:01:08 PDT 2000
mruhl@adsl-63-195-107-202.dsl.snfc21.pacbell.net:/usr/src/sys/compile/BANJO
i386