Subject: port-hp300/313: high maxusers causes kernel hang
To: None <gnats-admin>
From: jason downs <downsj@CSOS.ORST.EDU>
List: netbsd-bugs
Date: 07/01/1994 05:35:07
>Number:         313
>Category:       port-hp300
>Synopsis:       high maxusers causes kernel hang
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    gnats-admin (GNATS administrator)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Jul  1 05:35:04 1994
>Originator:     jason downs
"	Computer Science Outreach Services, Oregon State University"
>Release:        NetBSD 0.9C-current (source three days old)
System: NetBSD foundation 0.9C NetBSD 0.9C (FOUNDATION) #14: Fri Jul 1 04:28:21 PDT 1994 downsj@foundation:/usr/src/sys/arch/hp300/compile/FOUNDATION hp300

	Compiling a kernel with maxusers above 32 (at least at 48 or 64),
	causes sporadic kernel hangs.  It seems (from ktrace), that the
	kernel hangs around exec, and no new process may be created.  There
	does not seem to be any pattern or preset number of processes that
	will run before it hangs, but it is usually relatively soon after
	booting and a little activity.

	The kernel has no problems with the same config, save for a lower
	(32) maxusers.
	Compile a kernel with maxusers at 64, perferable on a 32meg machine.
	Boot.  Login.  Run binaries until it hangs.