SUMMARY: Overflowing disks hang machine

From: Colin McNeill (
Date: Mon Sep 16 1996 - 04:41:44 CDT

The original message was this:

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>From Fri Sep 13 11:03:17 1996
Date: Thu, 12 Sep 96 13:23:07 BST
From: Colin McNeill <>
Reply-To: Colin McNeill <>
Followup-To: Colin McNeill <>
Subject: Overflowing disks hang machine
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Dear All

I have an NFS server here running SunOS 4.1.3_U1. It is actually an Axil 311 (Sparcstation 10 clone) but I don't think that is at fault.

What happens is this:

When an NFS mounted filesystem is filled by a client multiple (anything up to a 1000) file system full errors are generated. This grinds the server to a halt. If the client process which is filling the disk is found and stopped then the machine might recover in about 5 minutes. However, sometimes the machine panics with a:

segvn soft_unlock problem.

Yesterday I applied the NFS Jumbo Patch 102177-04 hoping that this would sort the problem, but although it hasn't paniced again it has ground to a halt.


Unix systems should be able to handle such abuse.

Any suggestions gratefully received

Thanks in Advance

Colin McNeill

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The replies I had basically said upgrade to SunOS 4.1.4 or Solaris 2 and the problem will go away. I'll try this as soon as practicable.

Thanks to (Ron Loftin)

Anthony Goonetilleke <>

for the pointers.

Colin McNeill

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