>Number:         26354
>Category:       kern
>Synopsis:       negative running time for process in ps(1) and top(1) output
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jul 17 22:45:00 UTC 2004
>Closed-Date:
>Last-Modified:
>Originator:     Paulo Alexandre Pinto Pires
>Release:        NetBSD 2.0G (as of 2004/07/15)
>Organization:
>Environment:
	
	
System: NetBSD mateus.ap.ppires.org 2.0G NetBSD 2.0G (MATEUS-20040715) #0: Thu Jul 15 12:45:51 BRT 2004 pappires@mateus.ap.ppires.org:/usr/src/sys/arch/i386/compile/MATEUS-20040715 i386
Architecture: i386
Machine: i386
>Description:
	From a few weeks to now, I have noticed some processes in ps(1)
	output to show negative running times (see How-To-Repeat fo sample).

	I first noticed this problem in 2.0F as of mid-June.  Watching the
	lists, I saw some messages regarding changes in isa/clock.c.  So
	I updated on 2004/07/15, but problem is still there.

	Problem can be seen with other program, such as top(1).

	My system runs a mostly trimmed GENERIC with ACPI, MPBIOS,
	NEW_BUFQ_STRATEGY, PERFCTRS, NO_TSC_TIME enabled.  I can send
	detailed kernel conf file, if needed.  Output from dmesg(8)
	follows.

>How-To-Repeat:
	pappires@mateus:/ [28]: ps -ax | grep ':-'
	   10 ?? DK   0:-1.98 [usb2]
	   96 ?? Is   0:-1.99 nfsd: master 
	  199 ?? S    0:-1.07 kdeinit: kded 
	  351 ?? Ss   0:-1.98 /usr/sbin/ypserv -d 
	  432 ?? Is   0:-1.99 sendmail: Queue runner@00:01:00 for /var/spool/clientmque
	  471 ?? DK   0:-1.99 [acctwatch]
	  865 ?? S    0:-1.99 /usr/common/netscape/netscape-bin 
	  946 ?? Is   0:-1.99 /usr/sbin/lpd 
	 1007 ?? I    0:-1.50 xterm 
	 1491 ?? S    0:-1.75 xterm 
	11390 p2 RV   0:00.00 grep :- (tcsh)
	  729 E4 Is+  0:-1.99 /usr/libexec/getty Pc ttyE4

	pappires@mateus:/ [29]: demsg
	NetBSD 2.0G (MATEUS-20040715) #0: Thu Jul 15 12:45:51 BRT 2004
		pappires@mateus.ap.ppires.org:/usr/src/sys/arch/i386/compile/MATEUS-20040715
	total memory = 511 MB
	avail memory = 497 MB
	BIOS32 rev. 0 found at 0xfdaf0
	mainbus0 (root)
	cpu0 at mainbus0: apid 0 (boot processor)
	cpu0: AMD Athlon XP 2400+ (686-class), 2004.65 MHz, id 0x681
	cpu0: features c3c3fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
	cpu0: features c3c3fbff<PGE,MCA,CMOV,PAT,PSE36,MMXX,MMX>
	cpu0: features c3c3fbff<FXSR,SSE,3DNOW2,3DNOW>
	cpu0: "AMD Athlon(tm) XP 2400+"
	cpu0: I-cache 64 KB 64B/line 2-way, D-cache 64 KB 64B/line 2-way
	cpu0: L2 cache 256 KB 64B/line 16-way
	cpu0: ITLB 16 4 KB entries fully associative, 8 4 MB entries fully associative
	cpu0: DTLB 32 4 KB entries fully associative, 8 4 MB entries 4-way
	cpu0: calibrating local timer
	cpu0: apic clock running at 267 MHz
	cpu0: 8 page colors
	ioapic0 at mainbus0 apid 2 (I/O APIC)
	ioapic0: pa 0xfec00000, version 3, 24 pins
	acpi0 at mainbus0
	acpi0: using Intel ACPI CA subsystem version 20040211
	acpi0: X/RSDT: OemId <AMIINT,VIA_K7  ,00000010>, AslId <MSFT,00000097>
	acpi0: SCI interrupting at int 9
	acpi0: fixed-feature power button present
	ACPI Object Type 'Processor' (0x0c) at acpi0 not configured
	acpibut0 at acpi0 (PNP0C0C): ACPI Power Button
	PNP0A03 at acpi0 not configured
	PNP0C02 at acpi0 not configured
	PNP0200 at acpi0 not configured
	PNP0100 at acpi0 not configured
	PNP0B00 at acpi0 not configured
	PNP0800 at acpi0 not configured
	npx0 at acpi0 (PNP0C04)
	npx0: io 0xf0-0xff irq 13
	npx0: using exception 16
	pckbc0 at acpi0 (PNP0303): kbd port
	pckbc0: io 0x60,0x64 irq 1
	fdc0 at acpi0 (PNP0700)
	fdc0: io 0x3f2-0x3f5,0x3f7 irq 6 drq 2
	com0 at acpi0 (PNP0501-1)
	com0: io 0x3f8-0x3ff irq 4
	com0: ns16550a, working fifo
	com1 at acpi0 (PNP0501-2)
	com1: io 0x2f8-0x2ff irq 3
	com1: ns16550a, working fifo
	lpt0 at acpi0 (PNP0400)
	lpt0: io 0x378-0x37f irq 7
	ACPI Object Type 'Power' (0x0b) at acpi0 not configured
	ACPI Object Type 'Power' (0x0b) at acpi0 not configured
	ACPI Object Type 'Power' (0x0b) at acpi0 not configured
	ACPI Object Type 'Power' (0x0b) at acpi0 not configured
	PNP0C0F at acpi0 not configured
	PNP0C0F at acpi0 not configured
	PNP0C0F at acpi0 not configured
	PNP0C0F at acpi0 not configured
	acpibut1 at acpi0 (PNP0C0E): ACPI Sleep Button
	pckbd0 at pckbc0 (kbd slot)
	pckbc0: using irq 1 for kbd slot
	wskbd0 at pckbd0: console keyboard
	pci0 at mainbus0 bus 0: configuration mode 1
	pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
	pchb0 at pci0 dev 0 function 0
	pchb0: vendor 0x1106 product 0x3189 (rev. 0x80)
	agp0 at pchb0: aperture at 0xe0000000, size 0xf900000
	ppb0 at pci0 dev 1 function 0: vendor 0x1106 product 0xb198 (rev. 0x00)
	pci1 at ppb0 bus 1
	pci1: i/o space, memory space enabled
	vga0 at pci1 dev 0 function 0: vendor 0x1002 product 0x5159 (rev. 0x00)
	wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation), using wskbd0
	wsmux1: connecting to wsdisplay0
	wsdisplay0: screen 1-7 added (80x25, vt100 emulation)
	eap0 at pci0 dev 7 function 0: vendor 0x1274 product 0x1371 ES1373-8(rev. 0x08)
	eap0: interrupting at ioapic0 pin 19 (irq 10)
	eap0: ac97: Crystal CS4297A codec; headphone, 20 bit DAC, 18 bit ADC, Crystal Semi 3D
	eap0: ac97: ext id 200<AMAP>
	audio0 at eap0: full duplex, mmap, independent
	midi0 at eap0: AudioPCI MIDI UART
	puc0 at pci0 dev 8 function 0: US Robotics (3Com) 3CP5609 PCI 16550 Modem (com)
	com2 at puc0 port 0: interrupting at ioapic0 pin 18 (irq 12)
	com2: ns16550a, working fifo
	rtk0 at pci0 dev 10 function 0: Realtek 8139 10/100BaseTX
	rtk0: interrupting at ioapic0 pin 17 (irq 10)
	rtk0: Ethernet address 00:e0:7d:fa:2e:8c
	ukphy0 at rtk0 phy 7: Generic IEEE 802.3u media interface
	ukphy0: OUI 0x000000, model 0x0000, rev. 0
	ukphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
	bce0 at pci0 dev 11 function 0: Broadcom BCM4401 10/100 Ethernet
	bce0: interrupting at ioapic0 pin 18 (irq 12)
	ukphy1 at bce0 phy 1: Generic IEEE 802.3u media interface
	ukphy1: OUI 0x000818, model 0x0036, rev. 0
	ukphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
	bce0: Ethernet address 00:0c:76:2a:1a:eb
	viaide0 at pci0 dev 15 function 0
	viaide0: VIA Technologies VT8237 SATA Controller (rev. 0x80)
	viaide0: bus-master DMA support present
	viaide0: primary channel wired to native-PCI mode
	viaide0: using ioapic0 pin 20 (irq 11) for native-PCI interrupt
	atabus0 at viaide0 channel 0
	viaide0: secondary channel wired to native-PCI mode
	atabus1 at viaide0 channel 1
	viaide1 at pci0 dev 15 function 1
	viaide1: VIA Technologies VT8237 ATA133 controller
	viaide1: bus-master DMA support present
	viaide1: primary channel configured to compatibility mode
	viaide1: primary channel interrupting at ioapic0 pin 14 (irq 14)
	atabus2 at viaide1 channel 0
	viaide1: secondary channel configured to compatibility mode
	viaide1: secondary channel interrupting at ioapic0 pin 15 (irq 15)
	atabus3 at viaide1 channel 1
	uhci0 at pci0 dev 16 function 0: vendor 0x1106 product 0x3038 (rev. 0x81)
	uhci0: interrupting at ioapic0 pin 21 (irq 11)
	usb0 at uhci0: USB revision 1.0
	uhub0 at usb0
	uhub0: vendor 0x1106 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
	uhub0: 2 ports with 2 removable, self powered
	uhci1 at pci0 dev 16 function 1: vendor 0x1106 product 0x3038 (rev. 0x81)
	uhci1: interrupting at ioapic0 pin 21 (irq 11)
	usb1 at uhci1: USB revision 1.0
	uhub1 at usb1
	uhub1: vendor 0x1106 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
	uhub1: 2 ports with 2 removable, self powered
	uhci2 at pci0 dev 16 function 2: vendor 0x1106 product 0x3038 (rev. 0x81)
	uhci2: interrupting at ioapic0 pin 21 (irq 10)
	usb2 at uhci2: USB revision 1.0
	uhub2 at usb2
	uhub2: vendor 0x1106 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
	uhub2: 2 ports with 2 removable, self powered
	uhci3 at pci0 dev 16 function 3: vendor 0x1106 product 0x3038 (rev. 0x81)
	uhci3: interrupting at ioapic0 pin 21 (irq 10)
	usb3 at uhci3: USB revision 1.0
	uhub3 at usb3
	uhub3: vendor 0x1106 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
	uhub3: 2 ports with 2 removable, self powered
	ehci0 at pci0 dev 16 function 4: vendor 0x1106 product 0x3104 (rev. 0x86)
	ehci0: interrupting at ioapic0 pin 21 (irq 12)
	ehci0: EHCI version 1.0
	ehci0: companion controllers, 2 ports each: uhci0 uhci1 uhci2 uhci3
	usb4 at ehci0: USB revision 2.0
	uhub4 at usb4
	uhub4: vendor 0x1106 EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
	uhub4: 8 ports with 8 removable, self powered
	pcib0 at pci0 dev 17 function 0
	pcib0: vendor 0x1106 product 0x3227 (rev. 0x00)
	auvia0 at pci0 dev 17 function 5: VIA Technologies VT8235 AC'97 Audio (rev 0x60)
	auvia0: interrupting at ioapic0 pin 22 (irq 12)
	auvia0: ac97: CMI97 codec; no 3D stereo
	auvia0: ac97: ext id 5c6<AC97_22,LDAC,SDAC,CDAC,SPDIF,DRA>
	audio1 at auvia0: full duplex, independent
	isa0 at pcib0
	lm0 at isa0 port 0x290-0x297: W83697HF
	pcppi0 at isa0 port 0x61
	midi1 at pcppi0: PC speaker
	spkr0 at pcppi0
	sysbeep0 at pcppi0
	ioapic0: enabling
	fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
	wd0 at atabus2 drive 0: <ST360021A>
	wd0: drive supports 16-sector PIO transfers, LBA addressing
	wd0: 57241 MB, 116301 cyl, 16 head, 63 sec, 512 bytes/sect x 117231408 sectors
	wd0: 32-bit data port
	wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
	wd1 at atabus2 drive 1: <MAXTOR 6L040J2>
	wd1: drive supports 16-sector PIO transfers, LBA addressing
	wd1: 38172 MB, 77557 cyl, 16 head, 63 sec, 512 bytes/sect x 78177792 sectors
	wd1: 32-bit data port
	wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
	wd0(viaide1:0:0): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100) (using DMA data transfers)
	wd1(viaide1:0:1): using PIO mode 4, Ultra-DMA mode 6 (Ultra/133) (using DMA data transfers)
	atapibus0 at atabus3: 2 targets
	cd0 at atapibus0 drive 0: <CSI-1480, CSI-1480 Ver2.2C, VER-2.2> cdrom removable
	cd0: 32-bit data port
	cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
	cd1 at atapibus0 drive 1: <HL-DT-ST RW/DVD GCC-4320B, , 1.00> cdrom removable
	cd1: 32-bit data port
	cd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
	cd0(viaide1:1:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA data transfers)
	cd1(viaide1:1:1): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA data transfers)
	boot device: wd0
	root on wd0a dumps on wd0b
	root file system type: ffs
	uhidev0 at uhub1 port 2 configuration 1 interface 0
	uhidev0: Microsoft Microsoft IntelliMouseM-. Explorer, rev 1.10/1.21, addr 2, iclass 3/1
	ums0 at uhidev0: 5 buttons and Z dir.
	wsmouse0 at ums0 mux 0
	Accounting started
	LKM 'linuxrtc': kernel version mismatch - LKM 200060000, kernel 200070000
	LKM 'vmmon': kernel version mismatch - LKM 200060000, kernel 200070000
	LKM 'vmnet': kernel version mismatch - LKM 200060000, kernel 200070000
	set{u,g}id pid 10168 (netstat) was invoked by uid 1001 ppid 924 (netscape-bin) with fd 0 closed

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