>Number:         9308
>Category:       kern
>Synopsis:       UVM can loop when out of memory
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people (Kernel Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jan 27 18:27:00 2000
>Last-Modified:
>Originator:     Matthew Orgass <darkstar@pgh.net>
>Organization:
	
>Release:        2000-01-23
>Environment:
	K6-3 450MHz with 64MB memory
System: NetBSD jove.stargate.net 1.4Q NetBSD 1.4Q (JOVE) #0: Sun Jan 23 10:38:54 PST 2000 root@jove.stargate.net:/usr/src/sys/arch/i386/compile/JOVE i386


>Description:
	Running "grep foo /dev/zero &; grep foo /dev/zero &;" with X
running wedges UVM into a loop 100% of the time.

	It appears to be spending most, if not all, of its time in
uvmpd_scan.

>How-To-Repeat:
	grep foo /dev/zero &; grep foo /dev/zero &; top
	Takes less then a minute to get into the loop.

>Fix:
	Don't know.
>Audit-Trail:
>Unformatted: