I'm sending this to the redhat-list as opposed to the BIND list, since
it happens only on one of my RedHat 5.2 machines at home. The 6.2 version
seems fine and the 5.2 version on another machine works fine. This leads
me to believe I have some strange misconfiguration on my machine at home.
I installed the three bind RPMs for RedHat 6.2 last night. I discovered
that if I specify a nameserver in the "host" command, I get a delay of
several seconds followed by a segmentation fault. If I don't specify a
nameserver, "host" works fine. It doesn't seem to matter what kind of
lookup or what particular nameserver I specify.
****** This works fine ******
[petep@petep petep]$ host -t mx isc.org.
isc.org mail is handled (pri=10) by isrv3.isc.org
isc.org mail is handled (pri=20) by sh.lh.vix.com
****** This gives segfault ******
[petep@petep petep]$ host -t mx isc.org. gns1.nominum.com.
Segmentation fault (core dumped)
****** Data collected after the untimely demise ******
[petep@petep petep]$ gdb -c core /usr/bin/host
GNU gdb 4.17.0.4 with Linux/x86 hardware watchpoint and FPU support
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-redhat-linux"...
(no debugging symbols found)...
Core was generated by `host -t mx isc.org. gns1.nominum.com.'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /lib/libc.so.6...done.
Reading symbols from /lib/ld-linux.so.2...done.
#0 0x40053e4f in __strcasecmp (s1=0xbfffd564 "gns1.nominum.com.",
s2=0xbfffd160 "gns1.nominum.com.") at ../sysdeps/generic/strcasecmp.c:37
../sysdeps/generic/strcasecmp.c:37: No such file or directory.
(gdb) where
#0 0x40053e4f in __strcasecmp (s1=0xbfffd564 "gns1.nominum.com.",
s2=0xbfffd160 "gns1.nominum.com.") at ../sysdeps/generic/strcasecmp.c:37
#1 0x8065a4f in endservent ()
#2 0x80523e2 in __res_randomid ()
#3 0x8052556 in __res_randomid ()
#4 0x8053cd3 in __res_randomid ()
#5 0x8052a65 in __res_randomid ()
#6 0x80519fb in __res_randomid ()
#7 0x805207c in __res_randomid ()
#8 0x8051c93 in __res_randomid ()
#9 0x808d52d in hstrerror ()
#10 0x8076ccc in hstrerror ()
#11 0x80598c0 in endhostent ()
#12 0x8059753 in endhostent ()
#13 0x8059621 in gethostbyname ()
#14 0x8049fca in _start ()
(gdb) quit
[petep@petep petep]$
[petep@petep petep]$ uname -mrspv
Linux 2.0.36 #1 Tue Nov 17 13:01:19 EST 1998 i586 unknown
[petep@petep petep]$ cat /etc/redhat-release
Red Hat Linux release 5.2 (Apollo)
[petep@petep petep]$ rpm -q glibc
glibc-2.0.7-29
***************************************************************************
Before the update, "host" worked normally. I don't remember what version
that was, though it was Bind 8.x as opposed to the Bind 4.x that shipped
with 5.2.
This isn't a big deal -- I hope to replace this machine soon --- but
it would be nice to know the cause, so any ideas would be appreciated.
pete peterson
GenRad, Inc.
7 Technology Park Drive
Westford, MA 01886-0033
[EMAIL PROTECTED] or [EMAIL PROTECTED]
+1-978-589-7478 (GenRad); +1-978-256-5829 (Home: Chelmsford, MA)
+1-978-589-2088 (Closest FAX); +1-978-589-7007 (Main GenRad FAX)
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