[Freeipa-users] Kerberos process coredump | authentication fails

Prashant Bapat prashant at apigee.com
Thu Jan 28 16:06:55 UTC 2016


Sure. Attached the stack trace with debuginfo installed.

Thanks much!

On 28 January 2016 at 16:53, Sumit Bose <sbose at redhat.com> wrote:

> On Thu, Jan 28, 2016 at 04:42:20PM +0530, Prashant Bapat wrote:
> > gdb stacktrace attached.
>
> Can you install the debuginfo with
>
>  debuginfo-install krb5-server-1.12.2-19.fc21.x86_64
>
> as suggested by gdb and then call 'bt full' again to get more details.
> Additionally the debuginfo of the freeipa package might be missing as
> well.
>
> bye,
> Sumit
> >
> > On 28 January 2016 at 16:27, Prashant Bapat <prashant at apigee.com> wrote:
> >
> > > Thanks Sumit.
> > >
> > > From the logs there is nothing unusual around the time of core dump. I
> > > found this one line odd though.
> > >
> > > *Jan 26 03:15:58 ipa.example.net <http://ipa.example.net>
> > > krb5kdc[4471](Error): worker 4473 exited with status 134*
> > >
> > >
> > > Let me try to get the full BT.
> > >
> > > On 28 January 2016 at 13:54, Sumit Bose <sbose at redhat.com> wrote:
> > >
> > >> On Thu, Jan 28, 2016 at 10:25:53AM +0530, Prashant Bapat wrote:
> > >> > Hi,
> > >> >
> > >> > We have a FreeIPA 4.1.4 setup on F21 servers. There is 1 master and
> 7
> > >> > replicas in different regions. Earlier there was only 1 replica.
> Since I
> > >> > added new replicas, on the master node, once in a while the kerberos
> > >> > process dumps core and everything stops working - authentication,
> > >> > replication etc. If we restart everything using "ipactl restart"
> things
> > >> are
> > >> > back to normal.
> > >> >
> > >> > Attached is the output from journalctl for kerberos.
> > >> >
> > >> > Has anyone come across this ? Are there any pointers to
> troubleshooting
> > >> > this ?
> > >>
> > >> This might be fixed recently by a patch from Simo
> > >> (2144b1eeb789639b8a3df287b580aeb6196188a8). But to help to better
> > >> identify the issue the content of the kdc logs around the time of the
> > >> crash might be useful. Additionally a full backtrace which you can get
> > >> by calling
> > >>
> > >>   coredumpclt gdb 4475
> > >>
> > >> and then
> > >>
> > >>   bt full
> > >>
> > >> bye,
> > >> Sumit
> > >>
> > >> >
> > >> > Any help is appreciated.
> > >> >
> > >> > Thanks.
> > >> > --Prashant
> > >>
> > >> > Jan 26 03:15:59 ipa.example.net systemd-coredump[5000]: Process
> 4475
> > >> (krb5kdc) of user 0 dumped core.
> > >> >
> > >> >                                                        Stack trace
> of
> > >> thread 4475:
> > >> >                                                        #0
> > >> 0x00007f99de8c18d7 raise (libc.so.6)
> > >> >                                                        #1
> > >> 0x00007f99de8c353a abort (libc.so.6)
> > >> >                                                        #2
> > >> 0x00007f99de8ba47d __assert_fail_base (libc.so.6)
> > >> >                                                        #3
> > >> 0x00007f99de8ba532 __assert_fail (libc.so.6)
> > >> >                                                        #4
> > >> 0x00007f99d783a78f ldap_get_values_len (libldap_r-2.4.so.2)
> > >> >                                                        #5
> > >> 0x00007f99d7c8173e ipadb_ldap_attr_to_int (ipadb.so)
> > >> >                                                        #6
> > >> 0x00007f99d7c83f9c ipadb_parse_ldap_entry (ipadb.so)
> > >> >                                                        #7
> > >> 0x00007f99d7c849ab ipadb_get_principal (ipadb.so)
> > >> >                                                        #8
> > >> 0x00007f99e0433b14 krb5_db_get_principal (libkdb5.so.7)
> > >> >                                                        #9
> > >> 0x000055768457c230 process_tgs_req (krb5kdc)
> > >> >                                                        #10
> > >> 0x0000557684579fe3 dispatch (krb5kdc)
> > >> >                                                        #11
> > >> 0x000055768458d8a0 process_packet (krb5kdc)
> > >> >                                                        #12
> > >> 0x00007f99dec4cc78 verto_fire (libverto.so.1)
> > >> >                                                        #13
> > >> 0x00007f99d6fb72a3 epoll_event_loop_once (libtevent.so.0)
> > >> >                                                        #14
> > >> 0x00007f99d6fb5787 std_event_loop_once (libtevent.so.0)
> > >> >                                                        #15
> > >> 0x00007f99d6fb1fed _tevent_loop_once (libtevent.so.0)
> > >> >                                                        #16
> > >> 0x00007f99dec4c3f7 verto_run (libverto.so.1)
> > >> >                                                        #17
> > >> 0x00005576845795ab main (krb5kdc)
> > >> >                                                        #18
> > >> 0x00007f99de8acfe0 __libc_start_main (libc.so.6)
> > >> >                                                        #19
> > >> 0x00005576845798f0 _start (krb5kdc)
> > >> >
> > >> > Jan 26 03:15:59 ipa.example.net systemd-coredump[4999]: Process
> 4473
> > >> (krb5kdc) of user 0 dumped core.
> > >> >
> > >> >                                                        Stack trace
> of
> > >> thread 4473:
> > >> >                                                        #0
> > >> 0x00007f99de8c18d7 raise (libc.so.6)
> > >> >                                                        #1
> > >> 0x00007f99de8c353a abort (libc.so.6)
> > >> >                                                        #2
> > >> 0x00007f99de8ba47d __assert_fail_base (libc.so.6)
> > >> >                                                        #3
> > >> 0x00007f99de8ba532 __assert_fail (libc.so.6)
> > >> >                                                        #4
> > >> 0x00007f99d783a78f ldap_get_values_len (libldap_r-2.4.so.2)
> > >> >                                                        #5
> > >> 0x00007f99d7c8173e ipadb_ldap_attr_to_int (ipadb.so)
> > >> >                                                        #6
> > >> 0x00007f99d7c83f9c ipadb_parse_ldap_entry (ipadb.so)
> > >> >                                                        #7
> > >> 0x00007f99d7c849ab ipadb_get_principal (ipadb.so)
> > >> >                                                        #8
> > >> 0x00007f99e0433b14 krb5_db_get_principal (libkdb5.so.7)
> > >> >                                                        #9
> > >> 0x000055768457c230 process_tgs_req (krb5kdc)
> > >> >                                                        #10
> > >> 0x0000557684579fe3 dispatch (krb5kdc)
> > >> >                                                        #11
> > >> 0x000055768458d8a0 process_packet (krb5kdc)
> > >> >                                                        #12
> > >> 0x00007f99dec4cc78 verto_fire (libverto.so.1)
> > >> >                                                        #13
> > >> 0x00007f99d6fb72a3 epoll_event_loop_once (libtevent.so.0)
> > >> >                                                        #14
> > >> 0x00007f99d6fb5787 std_event_loop_once (libtevent.so.0)
> > >> >                                                        #15
> > >> 0x00007f99d6fb1fed _tevent_loop_once (libtevent.so.0)
> > >> >                                                        #16
> > >> 0x00007f99dec4c3f7 verto_run (libverto.so.1)
> > >> >                                                        #17
> > >> 0x00005576845795ab main (krb5kdc)
> > >> >                                                        #18
> > >> 0x00007f99de8acfe0 __libc_start_main (libc.so.6)
> > >> >                                                        #19
> > >> 0x00005576845798f0 _start (krb5kdc)
> > >>
> > >> > --
> > >> > Manage your subscription for the Freeipa-users mailing list:
> > >> > https://www.redhat.com/mailman/listinfo/freeipa-users
> > >> > Go to http://freeipa.org for more info on the project
> > >>
> > >> --
> > >> Manage your subscription for the Freeipa-users mailing list:
> > >> https://www.redhat.com/mailman/listinfo/freeipa-users
> > >> Go to http://freeipa.org for more info on the project
> > >>
> > >
> > >
>
>
>
>
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