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too many recvbufs allocated (40)

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Kiran Shirol

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Jun 8, 2008, 6:47:36 AM6/8/08
to
Hi,

I am new to the group, appreciate if you could answer a couple of queries I
have

Recently in one of my setups, I got this message continuously.

too many recvbufs allocated (40) - ntpd

I checked the code(ntp-4.2.0a) and found that ntpd has 40 recv buffers
allocated for the recv packets.

My questions:

1. What situation causes such syslogs to pop-up ?

2. Is it safe to increase the RECV_TOMANY to a larger value ?


Thanks
Kiran

Unruh

unread,
Jun 10, 2008, 12:42:35 AM6/10/08
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kiran....@gmail.com (Kiran Shirol) writes:

>Hi,

>My questions:

How many servers do you have? What are your minpoll and maxpoll values for
those servers? Are you actually getting through to those servers ( what is
the output of ntpq -p).

>Thanks
>Kiran

Harlan Stenn

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Jun 10, 2008, 1:16:06 AM6/10/08
to
>>> In article <fd2a79190806080347t3f...@mail.gmail.com>, kiran....@gmail.com (Kiran Shirol) writes:

Kiran> Recently in one of my setups, I got this message continuously.

Kiran> too many recvbufs allocated (40) - ntpd

Kiran> I checked the code(ntp-4.2.0a) and found that ntpd has 40 recv
Kiran> buffers allocated for the recv packets.

I recall a bug like this being fixed a while ago.

4.2.0 is pretty old. The latest stable release is 4.2.4, and we are pretty
close to releasing ntp-dev as 4.2.6.

I recommend you upgrade your ntp software.

--
Harlan Stenn <st...@ntp.org>
http://ntpforum.isc.org - be a member!

Kiran Shirol

unread,
Jun 10, 2008, 8:09:49 AM6/10/08
to
> Hi,
>
> I am new to the group, appreciate if you could answer a couple of queries I
> have
>
> Recently in one of my setups, I got this message continuously.
>
> too many recvbufs allocated (40) - ntpd
>
> I checked the code(ntp-4.2.0a) and found that ntpd has 40 recv buffers

> allocated for the recv packets.
>
> My questions:
>
> 1. What situation causes such syslogs to pop-up ?
>
> 2. Is it safe to increase the RECV_TOMANY to a larger value ?
>
>
> Thanks
> Kiran
>
>
> ------------------------------
>
> Message: 3
> Date: Tue, 10 Jun 2008 04:42:35 GMT
> From: Unruh <unruh...@physics.ubc.ca>
> Subject: Re: [ntp:questions] too many recvbufs allocated (40)
> To: ques...@lists.ntp.org
> Message-ID: <%Cn3k.657$L03.54@edtnps92>

>
> kiran....@gmail.com (Kiran Shirol) writes:
>
> >Hi,
>
> >I am new to the group, appreciate if you could answer a couple of queries
> I
> >have
>
> >Recently in one of my setups, I got this message continuously.
>
> >too many recvbufs allocated (40) - ntpd
>
> >I checked the code(ntp-4.2.0a) and found that ntpd has 40 recv buffers

> >allocated for the recv packets.
>
> >My questions:
>
> >1. What situation causes such syslogs to pop-up ?
>
> >2. Is it safe to increase the RECV_TOMANY to a larger value ?
>
> How many servers do you have? What are your minpoll and maxpoll values for
> those servers? Are you actually getting through to those servers ( what is
> the output of ntpq -p).
>
>
>
> >Thanks
> >Kiran
>
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 10 Jun 2008 05:16:06 +0000
> From: Harlan Stenn <st...@ntp.org>
> Subject: Re: [ntp:questions] too many recvbufs allocated (40)
> To: ques...@lists.ntp.org
> Message-ID: <ywn9r6b5...@ntp1.isc.org>
> Content-Type: text/plain; charset=US-ASCII


Thanks for the responses. I will update to 4.2.4.

Regards
Kiran

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