kern/55337: Boot hangs when many modules are loaded via boot.cfg(5)

[jruohonen%iki.fi@localhost]

>Number:         55337
>Category:       kern
>Synopsis:       Boot hangs when many modules are loaded via boot.cfg(5)
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jun 02 07:20:00 +0000 2020
>Originator:     Jukka Ruohonen
>Release:        9.99.64
>Organization:
>Environment:
NetBSD kafka 9.99.64 NetBSD 9.99.64 (CUSTOM) #0: Tue Jun  2 08:24:50 EEST 2020  jruoho@kafka:/tmp/obj/sys/arch/amd64/compile/CUSTOM amd64
>Description:
I haven't looked at the code, but there appears to be a limit on the amount of code that can be loaded as modules via the bootloader.
>How-To-Repeat:
Put many (e.g., > 15) large modules to boot.cfg. Upon reboot, some kind of a limit-related error message quickly flashes, and the boot hangs.
>Fix:
Either document the limit in boot.cfg(5) or, better yet, document it and allow the boot to continue with reduced number of modules.