>Number:         25931
>Category:       kern
>Synopsis:       layerfs vnode locking botch on error
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jun 15 01:35:00 UTC 2004
>Closed-Date:
>Last-Modified:
>Originator:     YAMAMOTO Takashi <yamt@mwd.biglobe.ne.jp>
>Release:        NetBSD 2.0F
>Organization:

>Environment:
	
	
System: NetBSD kaeru 2.0F NetBSD 2.0F (build.kaeru) #1390: Mon Jun 14 15:10:57 JST 2004 takashi@kaeru:/home/takashi/work/kernel/build.kaeru i386
Architecture: i386
Machine: i386
>Description:
	layer_lookup() and umap_lookup() call underlying filesystem's
	VOP_LOOKUP() and then call layer_node_create().
	because VOP_LOOKUP() might unlocked dvp,
	if layer_node_create() fails, locking states will be inconsistent.
>How-To-Repeat:
	code inspection.
>Fix:
	
>Release-Note:
>Audit-Trail:
>Unformatted: