[Dovecot] FreeBSD 6.1-RELEASE/kqueue high CPU load

[Timo Sirainen]

On Wed, 2006-09-20 at 10:45 +0100, Dominic Marks wrote:
> >>>  44146 imap     0.005793 RET   kevent 1
> 
> I think what LI Xin was looking at is the return value of kevent(2)
> here. EPERM is the 1 in the last column.
> 
> > Sorry, EPERM? Where do you see that? What does it mean.
> 
>  From man intro(2):
> 
>   1 EPERM Operation not permitted.  An attempt was made to perform
>     an operation limited to processes with appropriate privileges
>     or to the owner of a file or other resources.
> 
> Looking at man kevent(2) there are a selection of errors that can be
> returned from this system call but EPERM isn't one of them.

Why would the 1 mean EPERM? See kevent()'s man page:

"The kevent() system call returns the number of events placed in the
eventlist, up to the value given by nevents."

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