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Date:      Tue, 31 Aug 2004 15:30:28 +0400 (MSD)
From:      Seva Gluschenko <gvs@rinet.ru>
To:        FreeBSD-gnats-submit@FreeBSD.org
Subject:   kern/71226: processes list is broken
Message-ID:  <200408311130.i7VBUSMZ026486@road.yandex.ru>
Resent-Message-ID: <200409010630.i816ULT0029789@freefall.freebsd.org>

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>Number:         71226
>Category:       kern
>Synopsis:       processes list is broken
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Sep 01 06:30:20 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Seva Gluschenko
>Release:        FreeBSD 5.3-BETA1 i386
>Organization:
Yandex LLC
>Environment:
System: FreeBSD road.yandex.ru 5.3-BETA1 FreeBSD 5.3-BETA1 #10: Fri Aug 27 11:18:42 MSD 2004 gvs@road.yandex.ru:/local/obj/local/usr/src/sys/ROAD i386


	
>Description:
	While examining process list on my box I've found some hung processes:

> ps ax | grep kblan
 1028  ??  RN     0:00,13 /usr/local/bin/kblankscrn.kss -root
 9395  ??  RN     0:00,10 /usr/local/bin/kblankscrn.kss -root
22415  ??  RN     0:00,01 /usr/local/bin/kblankscrn.kss -root
22723  ??  RN     0:00,11 /usr/local/bin/kblankscrn.kss -root
22930  ??  RN     0:00,01 /usr/local/bin/kblankscrn.kss -root
23040  ??  RN     0:00,10 /usr/local/bin/kblankscrn.kss -root
23063  ??  RN     0:00,11 /usr/local/bin/kblankscrn.kss -root
23147  ??  RN     0:00,01 /usr/local/bin/kblankscrn.kss -root
23340  ??  RN     0:00,12 /usr/local/bin/kblankscrn.kss -root
23342  ??  RN     0:00,01 /usr/local/bin/kblankscrn.kss -root
23345  ??  RN     0:00,10 /usr/local/bin/kblankscrn.kss -root
25625  ??  RN     0:00,00 /usr/local/bin/kblankscrn.kss -root
25915  ??  RN     0:00,01 /usr/local/bin/kblankscrn.kss -root
26035  ??  RN     0:00,01 /usr/local/bin/kblankscrn.kss -root

	I used kill on them. Nothing changes. I used kill -9. No reaction
	at all. The list is pretty the same. Thinking hard, then I used
	ktrace/kdump. They produced zero output, e.g. processes aren't really
	exist anymore - but still occupy some entries in process list.

	There maybe some conditions for process hanging to happen since
	kblankscrn was the only one found, otherwise process list
	should be fulfilled quite easy.

>How-To-Repeat:
	I use KDE-3.3.0, screensaver is configured for blanking screen. Dunno
	if it helps to reproduce.
>Fix:

	Sorry, no fix known.


>Release-Note:
>Audit-Trail:
>Unformatted:



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