Date: Mon, 2 Sep 1996 10:30:01 -0700 (PDT) From: Garrett Wollman <wollman@lcs.mit.edu> To: freebsd-bugs Subject: kern/1555: kern Message-ID: <199609021730.KAA03344@freefall.freebsd.org>
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The following reply was made to PR kern/1555; it has been noted by GNATS. From: Garrett Wollman <wollman@lcs.mit.edu> To: goldberg@cs.ubc.ca Cc: FreeBSD-gnats-submit@freebsd.org Subject: kern/1555: kern Date: Mon, 2 Sep 1996 13:24:28 -0400 <<On Fri, 30 Aug 1996 19:02:37 -0700, goldberg@cs.ubc.ca said: > Aug 22 07:27:53 homebrew /kernel: nfsd send error 55 > Aug 23 07:16:49 homebrew /kernel: nfsd send error 55 Error number 55 is ENOBUFS, ``No buffer space available''. There are a number of possible causes for this error: 1) Your machine is out of mbufs. Recompile with more. 2) Your network interface is hosed. Sometimes, if bad things happen inside a driver, output packet processing can come to a halt without the kernel knowing about it; if this happens when the queue is full, it will get stuck. (I used to see this one a lot when working on my experimental polling code.) 3) Your network interface is really busy. If the messages come only intermittently, this is the most likely cause. -GAWollman -- Garrett A. Wollman | O Siem / We are all family / O Siem / We're all the same wollman@lcs.mit.edu | O Siem / The fires of freedom Opinions not those of| Dance in the burning flame MIT, LCS, ANA, or NSA| - Susan Aglukark and Chad Irschick
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