tched to 12.1-RELEASE.
> Both versions have same symptoms.
>
> I get "dhclient: send_packet: No buffer space available" to console and then
> I frequently lose connection after seeing it.
> After taking the wlan down and re-connect it with wpa_supplicant, I usually
> ge
acket: No buffer space available" to console and then I
frequently lose connection after seeing it.
After taking the wlan down and re-connect it with wpa_supplicant, I usually get
a connection back.
On the side note, I also see these outputs to console and syslog:
ath0: bb hang detected (0x4),
; Starting cron.
> Starting background file system checks in 60 seconds.
>
> Sat Jul 30 16:14:32 PDT 2016
> wlan0: link state changed to UP
> Jul 30 16:14:35 rpi2 dhclient[836]: send_packet: No buffer space available
> Jul 30 16:15:08 rpi2 login: ROOT LOGIN (root) ON ttyu0
Tr
Hey -STABLE,
I've got a client who we've setup a FreeBSD cluster for with about a
dozens servers, all behind two front end proxies/LBs/firewalls which
also act as NAT gateways for the internal servers.
On the active front end proxy we've started seeing fatal: socket: No
buffer space
/LBs/firewalls which also act as
NAT gateways for the internal servers.
On the active front end proxy we've started seeing fatal: socket: No buffer
space available errors during high-peak times. I can see in vmstat -z
that this is what is getting denied:
ITEM SIZE LIMIT
for the internal servers.
On the active front end proxy we've started seeing fatal: socket: No buffer
space available errors during high-peak times. I can see in vmstat -z
that this is what is getting denied:
ITEM SIZE LIMIT USED FREE REQ FAIL SLEEP
tcp_inpcb
fatal: socket: No
buffer space available errors during high-peak times. I can see in
vmstat -z that this is what is getting denied:
ITEM SIZE LIMIT USED FREE REQ FAIL SLEEP
tcp_inpcb: 392, 32770, 19398, 13372,1449734621,6312858, 0
We've got a lot
a client who we've setup a FreeBSD cluster for with about a
dozens servers, all behind two front end proxies/LBs/firewalls which
also act as NAT gateways for the internal servers.
On the active front end proxy we've started seeing fatal: socket: No
buffer space available errors during high-peak
I'm slowly cathing up on FreeBSD related mails and found this mail ...
Marc G. Fournier wrote:
kern.ipc.numopensockets: 7400
kern.ipc.maxsockets: 12328
ps looks like:
stuff deleted
2368 p2 Is+ Sat01PM 0:00.03 /bin/tcsh root2112 0.0 0.1 5220
2360 p3 Ss+
On Tue, May 15, 2007 at 09:39:35PM +0200, Ulrich Spoerlein wrote:
How did the backing out work for you?
Taken from another mail from Marc, since there's now multiple threads
discussing this:
Did we determine whether backing out to before the unpcb socket
reference count change made any
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It didn't kept climbing ...
- --On Tuesday, May 15, 2007 21:39:35 +0200 Ulrich Spoerlein
[EMAIL PROTECTED] wrote:
I'm slowly cathing up on FreeBSD related mails and found this mail ...
Marc G. Fournier wrote:
kern.ipc.numopensockets:
On Tue, 8 May 2007, Marc G. Fournier wrote:
So, over 7000 sockets with pretty much all processes shut down ...
Shouldn't the garbage collector be cutting in somewhere here?
I'm willing to shut everthing down like this again the next time it happens
(in 2-3 days) if someone has some other
Marc G. Fournier wrote:
Oliver Fromme wrote:
If I remember correctly, you wrote that 11k sockets are
in use with 90 jails. That's about 120 sockets per jail,
which isn't out of the ordinary. Of course it depends on
what is running in those jails, but my guess is that you
just
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- --On Tuesday, May 08, 2007 15:14:29 +0200 Oliver Fromme
[EMAIL PROTECTED] wrote:
What kind of jails are those? What applications are
running inside them? It's quite possible that the
processes on one machine use 120 sockets per jail,
while
Marc G. Fournier wrote:
Now, that makes sense to me, I can understand that ... but, how would
that look as far as netstat -nA shows? Or, would it? For example, I
have:
You should use -na to list all sockets, not -nA.
mars# netstat -nA | grep c9655a20
c9655a20 stream 0 0
On Mon, May 07, 2007 at 07:01:02PM +0200, Oliver Fromme wrote:
Marc G. Fournier wrote:
Now, that makes sense to me, I can understand that ... but, how would
that look as far as netstat -nA shows? Or, would it? For example, I
have:
You should use -na to list all sockets, not -nA.
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Hash: SHA1
- --On Monday, May 07, 2007 19:01:02 +0200 Oliver Fromme
[EMAIL PROTECTED]
wrote:
If I remember correctly, you wrote that 11k sockets are
in use with 90 jails. That's about 120 sockets per jail,
which isn't out of the ordinary. Of course it
On Thu, 3 May 2007, Marc G. Fournier wrote:
Robert had mentioned in one of his emails about a Sockets can also exist
without any referencing process (if the application closes, but there is
still
data draining on an open socket).
[..]
Again, if I'm reading / understanding things
On Thu, 3 May 2007, Marc G. Fournier wrote:
'k, all I'm looking at right now is the Unix Domain Sockets, and the output
of netstat - sockstat is growing since I first started counting both ..
This was shortly after reboot:
mars# netstat -A | grep stream | wc -l ; sockstat -u | wc -l
2705
On Thu, 3 May 2007, Marc G. Fournier wrote:
I'm trying to probe this as well as I can, but network stacks and sockets
have never been my strong suit ...
Robert had mentioned in one of his emails about a Sockets can also exist
without any referencing process (if the application closes, but
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- --On Friday, May 04, 2007 12:05:11 +0100 Robert Watson [EMAIL PROTECTED]
wrote:
I think we should be careful to avoid prematurely drawing conclusions about
the source of the problem. First question: have you confirmed that the
resource limit
Marc G. Fournier wrote:
[ ... ]
okay, next question ... under 'Active UNIX domain sockets, I see alot that have
no Addr:
Active UNIX domain sockets
Address Type Recv-Q Send-QInode Conn Refs Nextref Addr
d06b7480 stream 0 00 c969b24000
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- --On Thursday, May 03, 2007 11:17:56 -0400 Chuck Swiger [EMAIL PROTECTED]
wrote:
The ones you're showing are from Postfix. It would be interesting to sort
them by frequency and see what the majority of the use is from.
If you sort the data
On Tue, 1 May 2007, Marc G. Fournier wrote:
I'm still being hit by this one ... more frequently right now as I had to
move a bit more stuff *onto* that server ... I'm trying to figure out what I
can monitor for a 'leak' somewhere, but the only thing I'm able to find is
the whole nmbclusters
On Wed, 2 May 2007, Marc G. Fournier wrote:
# netstat | egrep tcp4|udp4 | awk '{print $1}' | uniq -c
171 tcp4
103 udp4
or is there a better command I should be using?
I generally recommend using a combination of netstat and sockstat. Sockets
represent, loosely, IPC endpoints. There are
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- --On Thursday, May 03, 2007 19:28:56 +0100 Robert Watson [EMAIL PROTECTED]
wrote:
I generally recommend using a combination of netstat and sockstat. Sockets
represent, loosely, IPC endpoints. There are actually two layers
associated with
On 04/05/07, Marc G. Fournier [EMAIL PROTECTED] wrote:
'k, all I'm looking at right now is the Unix Domain Sockets, and the output of
netstat - sockstat is growing since I first started counting both ..
Hm! What about graphing them? It shouldn't be hard to write an mrtg
shell script data
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I'm trying to probe this as well as I can, but network stacks and sockets have
never been my strong suit ...
Robert had mentioned in one of his emails about a Sockets can also exist
without any referencing process (if the application closes, but
:I'm trying to probe this as well as I can, but network stacks and sockets have
:never been my strong suit ...
:
:Robert had mentioned in one of his emails about a Sockets can also exist
:without any referencing process (if the application closes, but there is still
:data draining on an open
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- --On Thursday, May 03, 2007 18:26:30 -0700 Matthew Dillon
[EMAIL PROTECTED] wrote:
One thing you can do is drop into single user mode... kill all the
processes on the system, and see if the sockets are recovered. That
will give
:*groan* why couldn't this be happening on a server that I have better remote
:access to? :(
:
:But, based on your explanation(s) above ... if I kill off all of the jail(s)
on
:the machine, so that there are minimal processes running, shouldn't I see a
:significant drop in the number of
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- --On Wednesday, May 02, 2007 11:00:17 +0800 Adrian Chadd [EMAIL PROTECTED]
wrote:
It doesn't panic whe it happens, no?
Nope ... I can login via ssh (sometimes it takes a try or two, but I can always
login) and then do a 'reboot', and all is
Marc G. Fournier wrote this message on Wed, May 02, 2007 at 14:34 -0300:
Is there any way of determining which apps are holding open which sockets?
ie.
lsof for open files?
netstat -A will list the socket address, fstat will list the fd, and what
socket it connected to that fd..
--
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- --On Wednesday, May 02, 2007 11:17:02 -0700 John-Mark Gurney
[EMAIL PROTECTED] wrote:
netstat -A will list the socket address, fstat will list the fd, and what
socket it connected to that fd..
Oh wow ... according to this, I have:
mars# wc
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'k, I just rebooted the server (messages started again), and netstat -A is
showing 3600 sockets open ... based on jupiter/pluto/venus numbers, this is
what I'd expect to see (~1000 sockets per 30 jails) ... so, over the course of
hte next 2 days,
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I'm still being hit by this one ... more frequently right now as I had to move
a bit more stuff *onto* that server ... I'm trying to figure out what I can
monitor for a 'leak' somewhere, but the only thing I'm able to find is the
whole nmbclusters
On 01/05/07, Marc G. Fournier [EMAIL PROTECTED] wrote:
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I'm still being hit by this one ... more frequently right now as I had to move
a bit more stuff *onto* that server ... I'm trying to figure out what I can
monitor for a 'leak' somewhere, but
, then that is obviously not the
culprit :(
May be a red herring...
I'm able to reproduce the No buffer space available message when
setting net.inet.tcp.(send|recv)space to non-default values. All I've
tried is the following, with a kernel dated 2007/04/22:
# sysctl net.inet.tcp.sendspace=131072
hardware ... but, if
you
are seeing it without using software RAID, then that is obviously not the
culprit :(
May be a red herring...
I'm able to reproduce the No buffer space available message when
setting net.inet.tcp.(send|recv)space to non-default values. All I've
tried
On Sat, 14 Apr 2007, Marc G. Fournier wrote:
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- --On Sunday, April 08, 2007 23:04:42 -0400 Dave [EMAIL PROTECTED] wrote:
Hello,
This is what i get for catching this late. Can you describe your
situation? I've got a server, router actually
, 2007 10:28 PM
Subject: 74 hours till next No Buffer Space Available reboot ...
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In my case, I can almost set my watch to it (if I had a watch) ... every 3
days, 2 hours, it seems that I have to reboot this machine, as that is
when the
'No Buffer
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In my case, I can almost set my watch to it (if I had a watch) ... every 3
days, 2 hours, it seems that I have to reboot this machine, as that is when the
'No Buffer Space Available' r starts to be generated ...
There are two others (CC'd
On 06/04/07, Marc G. Fournier [EMAIL PROTECTED] wrote:
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- --On Friday, April 06, 2007 06:17:04 +0100 Chris [EMAIL PROTECTED] wrote:
I am seeing the no buffer space error on a machine running 6.2 STABLE
feb 24 code, the machine isn't using
On 06/04/07, Marc G. Fournier [EMAIL PROTECTED] wrote:
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- --On Friday, April 06, 2007 06:17:04 +0100 Chris [EMAIL PROTECTED] wrote:
I am seeing the no buffer space error on a machine running 6.2 STABLE
feb 24 code, the machine isn't using
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- --On Saturday, April 07, 2007 20:12:00 +0100 Chris [EMAIL PROTECTED] wrote:
Also to add I now have a 2nd box using 6.2 STABLE few days old code,
had to use it because of broadcom 5755 nic card, I plan to use large
tcp window sizes so will be
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- --On Friday, April 06, 2007 06:17:04 +0100 Chris [EMAIL PROTECTED] wrote:
I am seeing the no buffer space error on a machine running 6.2 STABLE
feb 24 code, the machine isn't using gmirror. I had to recude
recvspace and sendspace to lower
available
-Mar 27 13:00:26 anubis routed[431]: Send bcast sendto(em0,
146.164.92.255.520): No buffer space available
The messages were repeated a lot of times before a temporary solution. I've
changed the kernel(FreeBSD 6.2) to an older one(FreeBSD 6.1) and since then
it's been working well. What
anubis dhcpd: send_packet: No buffer space available -Mar
27 13:00:26 anubis
routed[431]: Send bcast sendto(em0,
146.164.92.255.520): No buffer space available
The messages were repeated a lot of times before a temporary solution.
I've changed the
kernel(FreeBSD 6.2) to an older one(FreeBSD 6.1
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- --On Thursday, April 05, 2007 11:06:30 + Thiago Esteves de Oliveira
[EMAIL PROTECTED] wrote:
Marc,
My machine is working with the kernel that comes with 6.1-STABLE (I archived
this good kernel before upgrade the OS to 6.2).
No, I'm not
On 05/04/07, Marc G. Fournier [EMAIL PROTECTED] wrote:
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- --On Thursday, April 05, 2007 11:06:30 + Thiago Esteves de Oliveira
[EMAIL PROTECTED] wrote:
Marc,
My machine is working with the kernel that comes with 6.1-STABLE (I archived
this
stopped
its network services and then sent these messages:
-Mar 27 13:00:03 anubis dhcpd: send_packet: No buffer space available
-Mar 27 13:00:26 anubis routed[431]: Send bcast sendto(em0,
146.164.92.255.520): No buffer space available
The messages were repeated a lot of times before
these messages:
-Mar 27 13:00:03 anubis dhcpd: send_packet: No buffer space available
-Mar 27 13:00:26 anubis routed[431]: Send bcast sendto(em0,
146.164.92.255.520): No buffer space available
The messages were repeated a lot of times before a temporary solution. I've
changed the kernel
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'k, here's a bit more data, see if something jumps out at anyone ... first, a
bit of a timeline ...
Tonight, after ~75hrs uptime, I got an SMS, which is what generally indicates
the problem has begun ... the SMS is a result of a cron job running
On Fri, 23 Mar 2007, Marc G. Fournier wrote:
I've checked nmbclusters between the two machines, and both are at 25600,
but not sure what sysctl to look at for how much is actually used out of
that 25600 ...
netstat -mb
nmbclusters directly affects the number of clusters available in the
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thanks ... just rebooted it yesterday again, so it has another 48 hours before
it starts up again, so will save that output before next reboot ...
- --On Tuesday, March 27, 2007 21:03:55 +0100 Robert Watson
[EMAIL PROTECTED]
wrote:
On Fri, 23
Marc G. Fournier wrote:
Mar 20 07:59:26 mars sshd[717]: error: reexec socketpair: No buffer space
available
If I have a login session on the machine, I can easily do a reboot of the
machine, and it seems to come up clean every time (ie. no fsck's need to be
run) ...
Does anyone have any ideas
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- --On Monday, March 26, 2007 00:08:07 +0100 Bruce M. Simpson
[EMAIL PROTECTED]
wrote:
Marc G. Fournier wrote:
Mar 20 07:59:26 mars sshd[717]: error: reexec socketpair: No buffer space
available
If I have a login session on the machine, I
...
Mar 20 07:59:26 mars sshd[717]: error: reexec socketpair: No buffer space
available
As unrelated as this might sound, out of three servers that are virtually
identical, this is the only one using gmirror for its drives vs a hardware raid
controller, two of the three running kernels from about
space
available
As unrelated as this might sound, out of three servers that are virtually
identical, this is the only one using gmirror for its drives vs a hardware raid
controller, two of the three running kernels from about the same time ...
# ssh jupiter uname -a
FreeBSD jupiter.hub.org 6.2
Chuck Swiger wrote:
Does the problem go away if you use a trivial permit all PF ruleset?
When i took off scrub altq No buffer space available messages were
gone, but dhclient did still renew the same address.
Does the problem go away if you use a trivial IPFW permit all
instead of PF
Chuck Swiger wrote:
Typically, that sort of message indicates that the firewall rules are
preventing traffic from going out, or packets are getting stuck in a
queue until it fills up, or maybe even a bug somewhere in the
particular combination of kernel firewall options enabled, high
Pertti Kosunen wrote:
What could cause dhclient sometimes to fail renew the lease? I updated
world and moved to pf from ipfw same time so i don't know which to blame.
This happens from twice a day to every few days.
Jul 21 03:44:55 myserver dhclient: send_packet: No buffer space available
: No buffer space available
Jul 21 03:44:55 myserver dhclient: send_packet: No buffer space available
Jul 21 03:45:02 myserver dhclient: New IP Address (xl0): x.x.x.x
Jul 21 03:45:02 myserver dhclient: New Subnet Mask (xl0): 255.255.254.0
Jul 21 03:45:02 myserver dhclient: New Broadcast Address (xl0
What could cause dhclient sometimes to fail renew the lease? I updated
world and moved to pf from ipfw same time so i don't know which to blame.
This happens from twice a day to every few days.
Jul 21 03:44:55 myserver dhclient: send_packet: No buffer space available
Jul 21 03:44:55 myserver
Hi,
I have been experiencing this
$ ping 10.1.1.1
PING 10.1.1.1 (10.1.1.1): 56 data bytes
ping: sendto: No buffer space available
ping: sendto: No buffer space available
Does anyone have any ideas? Doing
# ifconfig fxp0 down
# ifconfig fxp0 up
fixes it but it won't recover otherwise.
I
On Thu, 10 Mar 2005, Mario Sergio Fujikawa Ferreira wrote:
Hi,
I have been experiencing this
$ ping 10.1.1.1
PING 10.1.1.1 (10.1.1.1): 56 data bytes
ping: sendto: No buffer space available
ping: sendto: No buffer space available
Does anyone have any ideas? Doing
# ifconfig fxp0
Hello.
OS:
# uname -a
FreeBSD devel.ucsnet.ru 4.8-RELEASE-p13 FreeBSD 4.8-RELEASE-p13 #9: Wed Nov 26
12:38:10 YEKT 2003 [EMAIL PROTECTED]:/usr/src/sys/compile/PAVELSH_DEVEL i386
Problem - error message No buffer space available.
But,
# netstat -m
145/18656/32768 mbufs in use (current/peak
Dag-Erling Smorgrav wrote:
Interference is preventing the card from transmitting, causing packets
to accumulate in the outgoing queue.
Dummynet queues with RED might help -- changing the behavior from tail
dropping to early detection may improve performance.
To Unsubscribe: send mail to
Hi!
I have 210 pipes configured with ipfw1, each uses GRED.
It works fine but sometimes I cannot get list of pipes:
# ipfw pipe show
ipfw: getsockopt(IP_DUMMYNET_GET): No buffer space available
If I repeat, it can sometimes success and fail again next time.
What's wrong?
netstat -m shows I
Karl M. Joch writes:
- when box 1 sends the file via cp command to box 2 (1 mounts 2 via
nfs) after it is created i immedialy get no bufferspace available on
every action box 1 does. the strange thing is, when letting the same
file being picked up by box 2 (box2 mounting box1 via nfs and
On Tue, 2002-05-14 at 02:32, Karl M. Joch wrote:
Hi,
i have a fine working configuration at one customer:
INET
||
||
|
Andrew Reilly wrote:
I ran a script using jot to send ping packets across the link, with
sizes varying from 1300 to 2300 bytes, while also watching the link with
tcpdump.
Only one ping failed (it didn't even get out), with the following error
message:
ping: sendto: Message too long
I
On Mon, 13 May 2002, Michael Sierchio wrote:
I've noticed problems with some servers out *there* on the net, which
send large TCP packets with DF set, but seemingly ignore the ICPM NEED
FRAG error response. Ack. Pppt.
Sounds like it might be the old block all ICMP at the firewall
On Tue, 2002-05-14 at 09:16, Michael Sierchio wrote:
Andrew Reilly wrote:
I ran a script using jot to send ping packets across the link, with
sizes varying from 1300 to 2300 bytes, while also watching the link with
tcpdump.
Only one ping failed (it didn't even get out), with the
On Fri, 7 Dec 2001, Kal Torak wrote:
Jonathan Hanna wrote:
No PPP involved with me, and I think with many others. I
agree that
the no affect above does look like ordinary buffer exhaustion,
though I also have a working network except for one interface (or
maybe
On Sat, 5 May 2001, Pekka Savola wrote:
Ok. This was caused by the dummynet rule, either directly or indirectly.
The symptoms:
1) 'No buffer space available'
2) hard crashes: does not respond to ping, closole goes blank, ethernet
link led in the switch goes off etc (about 3-4 times
On Sat, 5 May 2001, Pekka Savola wrote:
Ok. This was caused by the dummynet rule, either directly or indirectly.
The symptoms:
1) 'No buffer space available'
2) hard crashes: does not respond to ping, closole goes blank, ethernet
link led in the switch goes off etc (about 3-4 times in 48h)
3
: No buffer space available
even for ping (!)
alchemy:/home/mapc% netstat -m
178/880/4096 mbufs in use (current/peak/max):
148 mbufs allocated to data
26 mbufs allocated to packet headers
4 mbufs allocated to fragment reassembly queue headers
143/240/1024 mbuf
uot;Cy Schubert - ITSD Open Systems Group" [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Monday, April 02, 2001 3:44 PM
Subject: Re: sendto: No buffer space available
On Mon, 2 Apr 2001, Cy Schubert - ITSD Open Systems Group wrote:
In message [EMAIL PROTECTED], Roman
Shterenzon w
r
,
there's some pattern:
64 bytes from 192.115.106.10: icmp_seq=14 ttl=251 time=30.161 ms
ping: sendto: No buffer space available
ping: sendto: No buffer space available
ping: sendto: No buffer space available
ping: sendto: No buffer space available
ping: sendto: No buffer space available
ping
On Monday, April 02, 2001 06:51:15 PM +0200, Roman Shterenzon
[EMAIL PROTECTED] wrote:
+-
| 3c905B and 3c905C pci cards xl(4) cards, which are known to be good.
+---8
Er, I just resolved a problem where 4.2-RELEASE and later (unknown about
earlier) would start spewing "microuptime() went
Hi Roman!
On Mon, Apr 02, 2001 at 04:44:26PM +0200, Roman Shterenzon wrote:
I had this problem with a 3C509B card when pushing a lot of data
through to a slower machine on my network. ifconfig ep0 down; ifconfig
ep0 up fixed the problem when it occurred, however it would occur a
number
On Mon, 2 Apr 2001, Miklos Niedermayer wrote:
Hi Roman!
On Mon, Apr 02, 2001 at 04:44:26PM +0200, Roman Shterenzon wrote:
I had this problem with a 3C509B card when pushing a lot of data
through to a slower machine on my network. ifconfig ep0 down; ifconfig
ep0 up fixed the problem
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