Kernel is using a lot of CPU (was: Re: test)

> Hi,
> 
> I just rebooted a system of mine and it seems that the kernel is constantly doing something. How could I debug this?
> I am thinking of rebooting it tonight 
> 
> root@aurora:~ # top -S -b
> last pid:  2196;  load averages:  1.00,  1.00,  1.00  up 0+01:54:34    12:41:35
> 72 processes:  2 running, 69 sleeping, 1 waiting
> CPU:  0.0% user,  0.0% nice, 24.6% system,  0.0% interrupt, 75.3% idle
> Mem: 46M Active, 171M Inact, 1429M Wired, 14G Free
> ARC: 919M Total, 354M MFU, 487M MRU, 6912K Anon, 8726K Header, 63M Other
>      234M Compressed, 610M Uncompressed, 2.60:1 Ratio
> Swap: 16G Total, 16G Free
> 
>   PID USERNAME    THR PRI NICE   SIZE    RES STATE    C   TIME    WCPU COMMAND
>    11 root          4 155 ki31     0B    64K RUN      0 345:06 314.31% idle
>     0 root         49 -16    -     0B   784K swapin   1 112:27  99.85% kernel
>    30 root        319 -16    -     0B  5120K spa->s   3   0:06   0.00% zpool-aurora-os
>  1157 root          1  20    0   176M   150M select   2   0:05   0.00% smbd
>  1154 root          1  20    0   175M   150M select   2   0:05   0.00% smbd
> 
> This is a 12.4-RELEASE system.
> 
> Thanks for any ideas,
> Nikos
> 
> 
> 

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