port-atari/57908: The Atari TT kernel hangs infinitely while probing SCSI devices on external BlueSCSI

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>Number:         57908
>Category:       port-atari
>Synopsis:       The Atari TT kernel hangs infinitely while probing SCSI devices on external BlueSCSI
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    port-atari-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Feb 08 13:45:00 +0000 2024
>Originator:     Jaromír Cápík
>Release:        9.3
>Organization:
>Environment:
n/a
>Description:
The kernel hangs infinitely after finding the first SCSI drive on the bus when booting from BlueSCSI. The BlueSCSI activity led stays on afterwards. When I unplug the BlueSCSI from the external SCSI connector, the kernel boot continues, giving me some error message about spurious interrupt in ncrscsi0 and the installer then cannot find any drives even if I put BlueSCSI back.
Just once after ~5 unsuccesful retries the kernel booted fine, but then the disklabel threw "Command failed" and the installation could not continue.
The BlueSCSI drives work correctly in TOS/GEM and Linux.

>How-To-Repeat:
Try to boot the kernel with BlueSCSI inserted in the external SCSI connector
>Fix: