Date: Tue, 25 Jun 2013 09:38:39 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-net@freebsd.org Cc: Alex Liptsin <alexl@mellanox.com>, Oded Shanoon <odeds@mellanox.com>, Regev Lev <regevl@mellanox.com>, "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>, "freebsd-infiniband@freebsd.org" <freebsd-infiniband@freebsd.org> Subject: Re: Failed to allocate receive buffer problem Message-ID: <201306250938.40137.jhb@freebsd.org> In-Reply-To: <64DAB3164E410447932305F50F896D8D6AF6E2C3@MTLDAG01.mtl.com> References: <64DAB3164E410447932305F50F896D8D6AF6E2C3@MTLDAG01.mtl.com>
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On Wednesday, June 12, 2013 3:06:26 am Alex Liptsin wrote: > Hi. > > I have a problem that when running a ping (or any other traffic) over IPoIB port, > Traffic fails after some time. > At destination server DMESG I see that errors: > > Jun 11 14:42:11 h-qa-033 kernel: ib1: failed to allocate receive buffer 253 > Jun 11 14:42:12 h-qa-033 kernel: ib1: failed to allocate receive buffer 254 > Jun 11 14:42:13 h-qa-033 kernel: ib1: failed to allocate receive buffer 255 > Jun 11 14:42:14 h-qa-033 kernel: ib1: failed to allocate receive buffer 0 > Jun 11 14:42:15 h-qa-033 kernel: ib1: failed to allocate receive buffer 1 > Jun 11 14:42:16 h-qa-033 kernel: ib1: failed to allocate receive buffer 2 > Jun 11 14:42:17 h-qa-033 kernel: ib1: failed to allocate receive buffer 3 > Jun 11 14:42:18 h-qa-033 kernel: ib1: failed to allocate receive buffer 4 > Jun 11 14:42:19 h-qa-033 kernel: ib1: failed to allocate receive buffer 5 > Jun 11 14:42:20 h-qa-033 kernel: ib1: failed to allocate receive buffer 6 > Jun 11 14:42:21 h-qa-033 kernel: ib1: failed to allocate receive buffer 7 > > I work with FreeBSD 9.1. > > Is it a bug or some configuration issues? Do you see memory allocation errors in netstat -m? Specifically this line: 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters) If so, it may be that the IPoIB layer has an mbuf leak. The rest of netstat - m might be useful here as you can see if any of the zones are full. -- John Baldwin
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