Date: Tue, 19 May 1998 12:46:23 -0700 (PDT) From: coutinho@dextra.com.br To: freebsd-gnats-submit@FreeBSD.ORG Subject: kern/6694: Network hangs, with "No buffers available" message Message-ID: <199805191946.MAA00582@hub.freebsd.org>
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>Number: 6694
>Category: kern
>Synopsis: Network hangs, with "No buffers available" message
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue May 19 12:50:01 PDT 1998
>Last-Modified:
>Originator: Bill Coutinho
>Organization:
Dextra Informatica
>Release: 2.2.6-RELEASE
>Environment:
FreeBSD server.domain.com.br 2.2.6-RELEASE FreeBSD 2.2.6-RELEASE #0: Tue Apr 7 11:36:27 EST 1998
root@server.domain.com.br:/usr/src/sys/compile/SERVER i386
>Description:
We are using a FreeBSD box to run socks5 server. This machine has one
3Com Etherlink III (3c5x9) card.
When someone using socks-enabled client in a client machine tries to
FTP something, the server's net adapter hangs. The main symptom is:
# ping 192.168.0.1
ping: sendto: No buffer space available
ping: sendto: No buffer space available
^C
# netstat -m
246 mbufs in use:
109 mbufs allocated to data
128 mbufs allocated to packet headers
8 mbufs allocated to protocol control blocks
1 mbufs allocated to socket names and addresses
74/266 mbuf clusters in use
562 Kbytes allocated to network (31% in use)
0 requests for memory denied
0 requests for memory delayed
0 calls to protocol drain routines
It seems that the only way to recover this problem is re-booting the
machine.
>How-To-Repeat:
FTP'ing something with a FTP client under sockscap (win95). It does not
happen every time, but most of the times.
>Fix:
>Audit-Trail:
>Unformatted:
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