Fatal signal caught! 🔗 link

Hello all,

Looks like I found the favorite crash in hobbit. I am running 4.1.1
and just "upgraded" from bb. I followed the bb->hobbit instructions to
the t and everything appears to be working except for this test ( and
the tests associated with it ).
I tried commenting out everything but one line in my bb-hosts, but it
just seems like if I have more than one test it croaks with a seg
fault.

Here:

Environment BBLOCATION=''
Environment CONNTEST='TRUE'
Environment IPTEST_2_CLEAR_ON_FAILED_CONN='TRUE'

Service list dump
./bbcmd bbtest-net --debug --ping --checkresponse
(skip few dozen lines)
2005-09-16 11:11:20 Got DNS result for host server : <ip>
2005-09-16 11:11:20 Adding tcp test IP=<ip>, port=143, service=imap, silent=0
Aborted (core dumped)


(gdb) file bbtest-net
Reading symbols from bbtest-net...done.
unknown option `--debug'
(gdb) run
Starting program: /home/monitor/server/bin/bbtest-net

Program received signal SIGSEGV, Segmentation fault.
0x08050571 in add_tcp_test (ip=0x809806c "24.220.8.53", port=143,
service=0xbffff9fc "imap", sslopt=0x0, silent=0, reqmsg=0x0, priv=0x0,
    datacallback=0, finalcallback=0) at contest.c:182
182             newtest->sendtxt = (reqmsg ? reqmsg :
newtest->svcinfo->sendtxt);


It dies on the first host it loads the tests for. Here is my first host:

page mail Mail servers
group-compress
<ip>     mailserver # smtp pop3 imap ssh !dns !ftp

Anyone have any hints on what to do?
What happens on this line: newtest->sendtxt = (reqmsg ? reqmsg :
newtest->svcinfo->sendtxt); ?
If I knew C, I'd contribute:)

Thanks

Dan

Here's an update.

If I only have one server in the bb-hosts bbtest-net doesn't fail with
any of these services:

<ip>     hostname # ntp dns conn ldap ssh2 ssh1 bbnet pop rsync bbd
ftps telnets smtps pop3s imaps nntps clamd ldaps vnc

If I use *any* of the other services, that is:

ftp
ssh
telnet
smtp
imap
imap2
imap3
imap4

I get an immediate:

2005-09-16 14:33:12 Adding tcp test IP=<ip>, port=143, service=imap, silent=0
Aborted (core dumped)

This might help too:

monitor at devel:/home/monitor/server/bin$ gdb bbtest-net
GNU gdb 2002-04-01-cvs
Copyright 2002 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-linux"...
(gdb) run
Starting program: /home/monitor/server/bin/bbtest-net

Program received signal SIGSEGV, Segmentation fault.
0x08050571 in add_tcp_test (ip=0x809806c "<ip>", port=143,

service=0xbffff9fc "imap", sslopt=0x0, silent=0, reqmsg=0x0, priv=0x0,
    datacallback=0, finalcallback=0) at contest.c:182
182             newtest->sendtxt = (reqmsg ? reqmsg :
newtest->svcinfo->sendtxt);

(gdb) backtrace
#0  0x08050571 in add_tcp_test (ip=0x809806c "<ip>", port=143,
service=0xbffff9fc "imap", sslopt=0x0, silent=0, reqmsg=0x0,
    priv=0x0, datacallback=0, finalcallback=0) at contest.c:182
#1  0x0804fb84 in main (argc=1, argv=0xbffffae4) at bbtest-net.c:2214
(gdb) frame 0
#0  0x08050571 in add_tcp_test (ip=0x809806c "<ip>", port=143,

service=0xbffff9fc "imap", sslopt=0x0, silent=0, reqmsg=0x0,
    priv=0x0, datacallback=0, finalcallback=0) at contest.c:182
182             newtest->sendtxt = (reqmsg ? reqmsg :
newtest->svcinfo->sendtxt);

(gdb) print buf
No symbol "buf" in current context.
(gdb) print reqmsg
$1 = (unsigned char *) 0x0
(gdb) print newtest->sendtxt
$2 = (unsigned char *) 0x0
(gdb) print newtest->svcinfo->sendtxt
Cannot access memory at address 0x4


Whoa! Why's it looking for 0x4? Is that a bug?

Thanks

Dan

On 9/16/05, Dan Vande More <user-f3c4c62d9d50@xymon.invalid> wrote:

On Fri, Sep 16, 2005 at 02:41:14PM -0500, Dan Vande More wrote:

Something's up with your service definitions. "newtest->svcinfo"
is obviously bogus, which is why you get the segfault when it
tries to reference newtest->svcinfo->sendtxt.

Is "imap" listed if you run "bbtest-net --services" ? It should read

Name      : imap
  Sendtext: ABC123 LOGOUT\r\n
  Sendlen : 15
  Exp.text: * OK
  Exp.len : 4
  Exp.ofs : 0
  Flags   : 1
  Port    : 143

Also, check the ~hobbit/server/etc/bb-services file - is it readable
by your hobbit users ? What's the content of it ? You can compare it
with the one in the hobbit-4.1.1 sources (in the bbnet/ direcory).


Henrik

Heh,

I guess we know what happens know if someone were to accidently use
the bb-services file that comes from bb-gen instead of the one from
hobbit:)
That was my problem, I copied the real one (back?) over and it's
working just fine.

Thanks Henrik!

Dan

On 9/16/05, Henrik Stoerner <user-ce4a2c883f75@xymon.invalid> wrote: