The system now uses the posix clock_monotonic clock to compute uptime.
This clock requires that the arch code (do_settime) keep track of
time settings and back them out of "wall_to_monotonic".
There was also a recent change to set wall_to_monotonic to -(xtime) so
that this clock would be 0 at boot time. This is usually done in the
arch/kernel/time.c code where xtime (i.e. the system time) is set
during boot up. Prior code set it to the initial jiffies value. I
suspect that this change did not get into your kernel.
-g
>
> sun root # uname -a
> Linux sun.nowhere.net 2.5.72 #1 Tue Jun 17 10:25:45 EST 2003 sparc64
> sun4u TI UltraSparc IIi GNU/Linux
> sun root # uptime
> 10:46:35 up 497 days, 2:24, 1 user, load average: 0.28, 0.17, 0.07
> sun root # cat /proc/uptime
> 42949481.55 77.26
> sun root # cat /proc/stat
> cpu 1382 0 1783 7626 466
> cpu0 1382 0 1783 7626 466
> intr 12650 11256 0 0 0 928 459 0 0 0 0 0 0 7 0 0 0
> ctxt 14048
> btime 1055864690
> processes 4217
> procs_running 2
> procs_blocked 0
> sun root # cat /proc/cpuinfo
> cpu : TI UltraSparc IIi
> fpu : UltraSparc IIi integrated FPU
> promlib : Version 3 Revision 25
> prom : 3.25.1
> type : sun4u
> ncpus probed : 1
> ncpus active : 1
> Cpu0Bogo : 719.25
> Cpu0ClkTck : 0000000015752a00
> MMU Type : Spitfire
>
> -
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-- George Anzinger george@mvista.com High-res-timers: http://sourceforge.net/projects/high-res-timers/ Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/