Date: Wed, 4 Jun 1997 19:10:01 -0700 (PDT) From: "Jin Guojun[ITG]" <jin@george.lbl.gov> To: freebsd-bugs Subject: Re: bin/3778: ypbind -S domainname,server1,... does not function Message-ID: <199706050210.TAA27502@hub.freebsd.org>
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The following reply was made to PR bin/3778; it has been noted by GNATS.
From: "Jin Guojun[ITG]" <jin@george.lbl.gov>
To: wpaul@skynet.ctr.columbia.edu
Cc: freebsd-gnats-submit@FreeBSD.ORG, jin@iss-p1.lbl.gov
Subject: Re: bin/3778: ypbind -S domainname,server1,... does not function
Date: Wed, 4 Jun 1997 19:01:56 -0700
> > The only way to ypbind do what you want it to do is to download the
> > ypbind source code from FreeBSD-current and compile that on your 2.2
> > system. (It should compile without any problem.) Once you have that,
> > use the following:
> >
> > # ypbind -m -S domain,server1,server2,server3,server4,...
> >
> > The -m flag is new: it tells ypbind to use a 'many-cast' instead of
> > a broadcast. This will allow it to bind to any of the servers even
> > if they are on remote subnets.
>
> It works, but ypwhich kills it. That is, I cannot use ypwhich to fin out
> which ypserver is currently using.
>
> The ypbind is killed a couple of seconds after ypwhich command issued.
- Exactly what FreeBSD release are you running.
- Exactly what arguments do you use when invoking ypbind.
# uname -a
FreeBSD fudd.lbl.gov 2.1.7.1-RELEASE FreeBSD 2.1.7.1-RELEASE #0: Thu May 29 02:29:22 PDT 1997 root@iss-p6.lbl.gov:/usr/src/sys/compile/MinMax i386
# ypbind -m -S itg,george,pesto
# ypwhich
can't clnt_call: Can't communicate with ypbind
# cd /
# gdb -q ypbind /ypbind.core
Core was generated by `ypbind'.
Program terminated with signal 11, Segmentation fault.
#0 0x8055bd4 in end ()
(gdb) where
#0 0x8055bd4 in end ()
#1 0xefbfcc94 in end ()
#2 0x19a8 in ypbindprog_2 (rqstp=0xefbfd190, transp=0xf000) at ypbind.c:343
#3 0x803c0ba in end ()
#4 0x2046 in main (argc=4, argv=0xefbfda2c) at ypbind.c:517
(gdb) up 4
#4 0x2046 in main (argc=4, argv=0xefbfda2c) at ypbind.c:517
517 svc_getreqset(&fdsr);
(gdb) l
512 handle_children(ypdb);
513 if (children == (MAX_CHILDREN - 1))
514 checkwork();
515 }
516 }
517 svc_getreqset(&fdsr);
518 break;
519 }
520 }
521
(gdb) p fdsr
$1 = {fds_bits = {0, 0, 0, 0, 0, 0, 0, 0}}
(gdb) down
#3 0x803c0ba in end ()
(gdb) l
522 /* NOTREACHED */
523 exit(1);
524 }
525
526 void
527 checkwork()
528 {
529 struct _dom_binding *ypdb;
530
531 for(ypdb=ypbindlist; ypdb; ypdb=ypdb->dom_pnext)
(gdb) down
#2 0x19a8 in ypbindprog_2 (rqstp=0xefbfd190, transp=0xf000) at ypbind.c:343
343 result = (*local)(transp, &argument, rqstp);
(gdb) p local
$2 = (char *(*)()) 0x16a0 <ypbindproc_domain_2>
(gdb) down
#1 0xefbfcc94 in end ()
(gdb) l
338 bzero((char *)&argument, sizeof(argument));
339 if (!svc_getargs(transp, xdr_argument, (caddr_t)&argument)) {
340 svcerr_decode(transp);
341 return;
342 }
343 result = (*local)(transp, &argument, rqstp);
344 if (result != NULL && !svc_sendreply(transp, xdr_result, result)) {
345 svcerr_systemerr(transp);
346 }
347 return;
--------------
Auctually, it is not just killed by ypwhich. It will die even the machine is
rebooted and kept idel (no one touch it) for a while.
-Jin
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