Re: [squid-users] comm_select: kqueue event error: (9) Bad file descriptor

Thanx guys. I have noted, that this error does appear more often as the
server gets busy. It is at this time, that our problems start to appear.

regards

On Tue, 2007-07-17 at 09:18 +0800, Adrian Chadd wrote:
> On Mon, Jul 16, 2007, Tek Bahadur Limbu wrote:
>
> > [snip stuff about kqueue and EBADF]
>
> > Adrian may have answers regarding this messages?
>
> Yup!
>
> [EBADF] The specified descriptor is invalid.
>
> IIRC, its because sometimes (under heavy loads) you'll end up hitting a minor
> race condition where the FD has IO pending and in the list of updates and
> then its close()d. What happens there ATM is its left in the list; its
> passed to kevent which sees that FD is closed and returns that particular
> error.
>
> I know how to fix it, but its (as always) a question of time.
> If someone would like to sponsor a few hundred dollars then I'll
> add it to my queue of paid work and get around to it in, I hope,
> a couple of weeks.
>
> It -should- be cosmetic though. It shouldn't stop the processing of the
> rest of the events in the list. I'd still like to get rid of it though
> so there's absolutely no way it could interfere.
>
>
>
> Adrian
>
Received on Tue Jul 17 2007 - 01:30:38 MDT