principal~.kadm5 & C.

[Giuseppe Mazza]

On 16/07/14 15:54, Greg Hudson wrote:
>  You could also try installing the libkrb5-dbg
> package and gdb attaching to the process to get a stack trace.
> 

Please find my attempt below:

<<On my slave tt-u1404>>
root at tt-u1404:~/foo# ls
kdb-dump  kdb-dump.dump_ok
root at tt-u1404:~/foo# /usr/sbin/kdb5_util load kdb-dump
...it hangs...

root at tt-u1404:~# ps aux | grep kdb5_util
root      9842  3.1  0.1   6272  1428 pts/4    t+   13:07   1:14
/usr/sbin/kdb5_util load kdb-dump

root at tt-u1404:/var/lib/krb5kdc# gdb -p 9842
GNU gdb (Ubuntu 7.7-0ubuntu3.1) 7.7
...
Reading symbols from /lib/i386-linux-gnu/libdl.so.2...Reading symbols
from /usr/lib/debug//lib/i386-linux-gnu/libdl-2.19.so...done.
done.
Loaded symbols for /lib/i386-linux-gnu/libdl.so.2
Reading symbols from
/usr/lib/i386-linux-gnu/krb5/plugins/kdb/db2.so...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/i386-linux-gnu/krb5/plugins/kdb/db2.so
0xb7231a76 in ?? () from /usr/lib/i386-linux-gnu/krb5/plugins/kdb/db2.so
(gdb) bt
#0  0xb7231a76 in ?? () from /usr/lib/i386-linux-gnu/krb5/plugins/kdb/db2.so
#1  0xb722e9d7 in ?? () from /usr/lib/i386-linux-gnu/krb5/plugins/kdb/db2.so
#2  0xb722e578 in ?? () from /usr/lib/i386-linux-gnu/krb5/plugins/kdb/db2.so
#3  0xb72255e7 in ?? () from /usr/lib/i386-linux-gnu/krb5/plugins/kdb/db2.so
#4  0xb722685d in ?? () from /usr/lib/i386-linux-gnu/krb5/plugins/kdb/db2.so
#5  0xb7790a93 in krb5_db_put_principal (kcontext=0x8fb0088,
entry=0x8fb7330)
    at ../../../src/lib/kdb/kdb5.c:925
#6  0x0804f4e9 in ?? ()
#7  0x0804d5d4 in ?? ()
#8  0x08050746 in ?? ()
#9  0x0804ab31 in ?? ()
#10 0xb74bca83 in __libc_start_main (main=0x804a820, argc=3,
argv=0xbfbf6894,
    init=0x8055580, fini=0x80555f0, rtld_fini=0xb77da180 <_dl_fini>,
    stack_end=0xbfbf688c) at libc-start.c:287
#11 0x0804b484 in ?? ()
(gdb) list
1	../sysdeps/i386/dl-procinfo.c: No such file or directory.




<<On my desktop>>
I have downloaded the source package krb5_1.12.1+dfsg.orig.tar.gz:

bee% wget
https://launchpad.net/ubuntu/+archive/primary/+files/krb5_1.12.1%2Bdfsg.orig.tar.gz
-O /data/downloads/kerberos/krb5_1.12.1+dfsg.orig.tar.gz
bee% pwd
/data/downloads/kerberos/krb5-1.12.1/src/lib/kdb
bee% head -n 928 kdb5.c | tail -4
    status = v->put_principal(kcontext, entry, db_args);
    if (status == 0 && ulog_locked)
        (void) ulog_finish_update(kcontext, upd);

What do you think? Do you need more info?

Cheers,
Giuseppe