problems w/isp0 on MiataGL since 4.7-RELEASE

[Jim]

I have seen the following problem, first when booting from the
4.7-RELEASE floppies.  I also saw it after successfully installing
4.6.2-RELEASE, while upgrading to the most recent 4.8-STABLE (after
make installkernel, during the reboot into single-user):

<snip>
Waiting 15 seconds for SCSI devices to settle
isp0: command timed out for 0:15:0
isp0: command timed out for 0:14:0
isp0: command timed out for 0:13:0
isp0: command timed out for 0:12:0
(probe7:isp0:0:8:0): isp0: watchdog timeout for handle 0x8
(probe7:isp0:0:9:0): isp0: watchdog timeout for handle 0x9
(probe7:isp0:0:10:0): isp0: watchdog timeout for handle 0xa
(probe7:isp0:0:11:0): isp0: watchdog timeout for handle 0xb
isp0: cannot find handle 0xb (status 0x6)
isp0: cannot find handle 0xa (status 0x6)
isp0: cannot find handle 0x9 (status 0x6)
isp0: cannot find handle 0x8 (status 0x6)
</snip>

The same portion of a normal dmesg (from a 4.6.2-RELEASE kernel) looks
like:

<snip>
Waiting 15 seconds for SCSI devices to settle
Mounting root from ufs:/dev/da0a
da0 at isp0 bus 0 target 0 lun 0
da0: <DEC RZ2CC-KA (C) DEC 5520> Fixed Direct Access SCSI-2 device
da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing
Enabled
da0: 4091MB (8380080 512 byte sectors: 255H 63S/T 521C)
da1 at isp0 bus 0 target 1 lun 0
da1: <DEC RZ2CC-KB (C) DEC DC2B> Fixed Direct Access SCSI-2 device
da1: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing
Enabled
da1: 4091MB (8380080 512 byte sectors: 255H 63S/T 521C)
</snip>

With this problem, none of the SCSI disks are detected correctly.

Does anyone know of changes related to the isp driver between
4.6.2-RELEASE and 4.7-RELEASE that may have caused this problem?

Thanks,

Jim

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