bug# 1009122, 1014577, 1011562 fixed yet ??

[Eric Ho]

Has these 4.0 bugs been fixed yet ?  I saw them in the June 1989 Customer
Distributed Buglist.

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Reference #: 1011562
Release: 4.0
Synopsis: writes to some files can get lost
Description:
  An nfs server can lose a write to a file if the file is written on a 4.0
  SunOS server while being accessed for an fns read request in some
  circumstances.  The data written will be  part of the file for a while.  But
  later if the data has to reread from disk, the same file will have old or
  garbage data.


Reference #: 1014577
Release: 4.0
Synopsis: NFS mounted files occasionally get garbage/nulls written to them
Description:
  Occasionally when writing to nfs mounted files, parts of a file are replaced
  exactly (no insertion or deletions) with garbage, usually nulls.  This can
  span several appends to the file by distinct processes running minutes
  apart.


Reference #: 1009122
Release: 4.0beta
Synopsis: Sometimes read operations fail
Description:
  Mysterius I/O errors appear with SunOS 4.0.  The symptom varies but it seems
  as if reads from disk files sometimes return bogus data.

==========================================

These are really serious bugs especially when one has an nfs server acting
also as a centralized mailserver (bug 1011562) and /var/spool/mail is
centralized on the mailserver and hence nfs-mounted by other clients (bug
1014577) -- I'm getting bogus data & old mail messages got overwritten in
people's system mailboxes from time to time.  My whole net is running OS
4.0.1 (I've both Sun-3 & Sun-4 architecture nodes/servers).

Any pointers would be greatly appreciated.

Eric Ho
Cognitive Science Lab.,		Princeton University
voice = 609-987-2819 (x2987)	email = eho at confidence.princeton.edu
					eho at bogey.princeton.edu