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	Jakub Kruszona-Zawadzki <acid@gemius.pl>
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Date: Thu, 17 Mar 2005 20:47:51 GMT
From: Jakub Kruszona-Zawadzki <acid@gemius.pl>
To: freebsd-gnats-submit@FreeBSD.org
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Subject: kern/78957: time counter per process stops (syscall: getrusage) 
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>Number:         78957
>Category:       kern
>Synopsis:       time counter per process stops (syscall: getrusage)
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Mar 17 20:50:02 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Jakub Kruszona-Zawadzki
>Release:        FreeBSD 4.x - 5.x
>Organization:
Gemius SA
>Environment:
FreeBSD adnet.hit.gemius.pl 4.10-RELEASE FreeBSD 4.10-RELEASE #0: Thu Oct  7 13:48:42 CEST 2004     hitcol@adocean.hit.gemius.pl:/usr/src/sys/compile/ADNET  i386
(but it occurs on every FreeBSD 4.x and 5.x)      
>Description:
When a process is running for a long time (several days) time counter per process stops on value: 
ru_utime.tv_sec:305221
ru_utime.tv_usec:322735
>How-To-Repeat:
write something like this:

void main() {
struct rusage rus;
while (1) {
.. do something that uses the processor for a few minutes - loop with some calculations ...
getrusage(RUSAGE_SELF,&rus);
printf("ru_utime.tv_sec:%ld | ru_utime.tv_usec:%ld",rus.ru_utime.tv_sec,rus.ru_utime.tv_usec);
}
}

compile and run then wait about 305000s (about 3.5 days)
>Fix:
No idea - may be something is wrongly calculated in kernel ???
>Release-Note:
>Audit-Trail:
>Unformatted: