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Date:      Tue, 22 Nov 2011 12:50:56 -0500
From:      Henry M <>
Subject:   reexec socketpair: No buffer space available
Message-ID:  <>

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Hi all,

Has anyone come across this error before:
sshd[20861]: error: reexec socketpair: No buffer space available

It stops remote users/services to connect to the machine remotely. I have
17 jails running on the machine.
CPU load on the machine is low, and RAM usage is also low (16GB avail, 5GB

System info:
FreeBSD 8.0-RELEASE-p6 FreeBSD 8.0-RELEASE-p6

$ netstat -mb
1029/4101/5130 mbufs in use (current/cache/total)
514/3446/3960/65536 mbuf clusters in use (current/cache/total/max)
0/1536 mbuf+clusters out of packet secondary zone in use (current/cache)
0/1582/1582/12800 4k (page size) jumbo clusters in use
0/0/0/6400 9k jumbo clusters in use (current/cache/total/max)
0/0/0/3200 16k jumbo clusters in use (current/cache/total/max)
1285K/14245K/15530K bytes allocated to network (current/cache/total)
0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters)
0/0/0 requests for jumbo clusters denied (4k/9k/16k)
0/0/0 sfbufs in use (current/peak/max)
0 requests for sfbufs denied
0 requests for sfbufs delayed
373686 requests for I/O initiated by sendfile
0 calls to protocol drain routines

What else should I be looking for to help me trouble this? I know I'm
hitting some limit, but not sure which one.

Any help would be much appreciated.


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