129 lines
4.4 KiB
Plaintext
129 lines
4.4 KiB
Plaintext
# -*- text -*-
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LIST OF KNOWN BUGS IN AM-UTILS OR OPERATING SYSTEMS
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(1) mips-sgi-irix*
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[1A] known to have flaky NFS V.3 and TCP. Amd tends to hang or spin
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infinitely after a few hours or days of use. Users must install recommended
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patches from vendor. Patches help, but not all the time. Otherwise avoid
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using NFS V.3 and TCP on these systems, by setting
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/defaults opts:=vers=2,proto=udp
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[1B] yp_all() leaks a file descriptor. Eventually amd runs out of file
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descriptors and hangs. Am-utils circumvents this by using its own version
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of yp_all which uses udp and iterates over NIS maps. The latter isn't as
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reliable as yp_all() which uses TCP, but it is better than hanging.
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(I have some reports that older version of hpux-9, with older libc, also
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leak file descriptors.)
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(2) alpha-unknown-linux-gnu (RedHat Linux 4.2)
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hasmntopt(mnt, opt) can goes into an infinite loop if opt is any substring
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of mnt->mnt_opts. Redhat 5.0 does not have this libc bug. Here is an
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example program:
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#include <stdio.h>
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#include <mntent.h>
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main()
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{
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struct mntent mnt;
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char *cp;
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mnt.mnt_opts = "intr,rw,port=1023,timeo=8,foo=br,retrans=110,indirect,map=/usr/local/AMD/etc/amd.proj,boo";
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cp = hasmntopt(&mnt, "ro");
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printf("cp = %s\n", cp);
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exit(0);
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}
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It is possible that sufficiently newer version of libc for RH4.2 fix this
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problem.
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(3) mips-dec-ultrix4.3
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Rainer Orth <ro@TechFak.Uni-Bielefeld.DE> reports
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[3A] One needs the Kernel Config Files (UDTBIN430) subset installed to
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compile am-utils, otherwise essential header files (net/if.h, net/route.h,
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rpcsvc/mount.h, rpcsvc/yp_prot.h, rpcsvc/ypclnt.h, sys/proc.h) are
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missing.
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[3B] It's probably impossible to build am-utils with DEC C on Ultrix V4.3.
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This compiler is pseudo-ANSI only. Maybe the new ANSI C compiler in V4.3A
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and beyond will do. I successfully used gcc 2.8.1.
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[3C] You need to build against a recent libhesiod (I used 3.0.2) and
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libresolv/lib44bsd (I used BIND 4.9.5-P1). The resolver routines in
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libc seem to cause random memory corruption. It is necessary to specify
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LIBS=-l44bsd. lib44bsd is a helper library of libresolv used to supply
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functions like strdup which are missing on the host system. This isn't
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currently autoconfiscated.
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[3D] You need to configure with CONFIG_SHELL=/bin/sh5 /bin/sh5 buildall;
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/bin/sh cannot handle the shell functions used in buildall and is both
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buggy and slow.
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[3E] At least the gcc 2.7.0 fixincludes-mangled <sys/utsname.h> needs a
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forward declaration of struct utsname to avoid lots of gcc warnings:
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RCS file: RCS/utsname.h,v
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retrieving revision 1.1
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diff -u -r1.1 utsname.h
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--- utsname.h 1995/06/19 13:07:01 1.1
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+++ utsname.h 1998/01/27 12:34:26
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@@ -59,6 +59,7 @@
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#ifdef KERNEL
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#include "../h/limits.h"
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#else /* user mode */
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+struct utsname;
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extern int uname _PARAMS((struct utsname *));
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#endif
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#define __SYS_NMLN 32
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(4) powerpc-ibm-aix4.2.1.0
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[4A] "Randall S. Winchester" <rsw@Glue.umd.edu> reports that for amd to
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start, you need to kill and restart rpc.mountd and possibly also make sure
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that nfsd is running. Normally these are not required.
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[4B] "Stefan Vogel" <vogel@physik.unizh.ch> reports that if your amq
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executable dump core unexpectedly, then it may be a bug in gcc 2.7.x.
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Upgrade to gcc 2.8.x or use IBM's xlC compiler.
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[C] Do not link amd with libnsl. It is buggy and causes amd to core dump
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in strlen inside strdup inside svc_register().
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(5) *-linux-gnu (RedHat Linux 5.1)
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There's a UDP file descriptor leak in libnsl in RedHat Linux 5.1. This
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library part of glibc2. Am-utils currently declares redhat 5.1 systems as
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having a "broken yp_all" and using an internal, slower, leak-free version.
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The leak is known to the glibc maintainers and a fix from them is due soon,
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but it is not yet in the glibc-2.0.7-19 RPM.
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(6) rs6000-ibm-aix4.1.x
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A bug in libc results in an amq binary that doesn't work; amq -v dumps core
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in xdr_string. There is no known fix (source code or vendor patch) at this
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time. (Please let amd-dev know if you know of a fix.)
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(7) *-aix4.3.2.0
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The plock() function appears to fail with ENOMEM (Not Enough Space). When
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it fails, it consumes a lot of memory. This appears to be an AIX bug. I
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think plock returns an error code, but it partially succeeds to lock some
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pages, thus increasing memory consumption. When partial failures occur, it
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is possible that AIX fails to unlock those pages it did lock. Solution:
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turn off usage of plock on AIX. Put plock=no in your amd.conf file (which
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is the default if you do nothing).
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Erez.
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