rpcinfo Problem

[Volker Jahns]

The following configuration statements reproducibly crash FreeBSD 6.1 and
6.2 when calling "rpcinfo -p" or "rpcinfo -p localhost" ( see more details
in the first posting)
--
rpcbind_enable="YES"
rpcbind_flags="-i -l"
nisdomainname="tdom"
nis_client_enable="YES"
--

I would be tempted to identify this behaviour as a (serious) bug.

Workaround
If the nis_client_flags option is uncommented like
#nis_client_flags="-S tdom,tdomserv.tdom.de,tdomserv -m"

-- 
Volker Jahns, volker at thalreit.de

> Running rpcbind on a FreeBSD 6.1 testsystem has horrible effects, when
>
> - rpcbind is started at system boottime by the rc.conf directive
> rpcbind_enable="YES"
> - rpcinfo -p localhost is run ( this command then hangs until the system
> has died)
>
>
> The top output shows high load and 'many' rpcbind processes which have
> been started.
> --
> last pid: 48637;  load averages:  3.99,  3.24,  3.23       up 0+07:47:18
> 16:02:42
> 1832 processes:3 running, 195 sleeping, 1633 waiting, 1 lock
> CPU states:  5.2% user,  0.0% nice, 26.8% system,  4.3% interrupt, 63.7%
> idle
> Mem: 121M Active, 20M Inact, 88M Wired, 4688K Cache, 34M Buf, 1004K Free
> Swap: 470M Total, 244M Used, 226M Free, 51% Inuse, 22M In, 26M Out
>
>   PID USERNAME  THR PRI NICE   SIZE    RES STATE    TIME   WCPU COMMAND
>   317 root        1 128    0  1440K   424K RUN     44:17  7.37% rpcbind
> 37057 root        1  96    0  6524K  3468K RUN      0:20  0.06% top
>   296 root        1  96    0  1300K     0K WAIT     1:06  0.00% <syslogd>
>   437 root        1  96    0  3408K     0K WAIT     0:00  0.00% <sendmail>
>   538 root        1  96    0  6092K     0K WAIT     0:00  0.00% <sshd>
>   447 root        1   8    0  1312K     0K WAIT     0:00  0.00% <cron>
>   441 smmsp       1  20    0  3300K     0K pause    0:00  0.00% <sendmail>
>   383 root        1  96    0  1212K     0K WAIT     0:00  0.00% <usbd>
>   541 root        1  20    0  3996K     0K pause    0:00  0.00% <csh>
> 99806 root        1   4    0  1468K     0K WAIT     0:00  0.00% <rpcbind>
> 38770 root        1   4    0  1464K     0K WAIT     0:00  0.00% <rpcbind>
> 20459 root        1   4    0  1468K     0K WAIT     0:00  0.00% <rpcbind>
> 21924 root        1   4    0  1440K     0K WAIT     0:00  0.00% <rpcbind>
>   426 root        1  96    0  3356K     0K select   0:00  0.00% <sshd>
> 49102 root        1   4    0  1468K     0K WAIT     0:00  0.00% <rpcb>
> 10715 root        1   4    0  1468K   648K kqread   0:00  0.00% rpcbind
> 49102 root        1   4    0  1468K     0K WAIT     0:00  0.00% <rpcbind>
> 45921 root        1   4    0  1464K     0K WAIT     0:00  0.00% <rpcbind>
> 45947 root        1   4    0  1464K     0K WAIT     0:00  0.00% <rpcbind>
> --
>
> The output of some well-known commands w/ the system in this state is
> puzzling me:
> --
> orion# dmesg
> No more processes.
> --
> --
> ssh orion -l root
> ssh_exchange_identification: Connection closed by remote host
> --
>
> Moreover, system log worries me:
> --
> Mar  8 08:20:26 orion kernel: kern.maxfiles limit exceeded by uid 0,
> please see
> tuning(7).
> Mar  8 08:20:26 orion kernel: kern.maxfiles limit exceeded by uid 0,
> please see
> tuning(7).
> Mar  8 08:20:26 orion syslogd: /dev/console: Too many open files in
> system: Too
> many open files in system
> Mar  8 07:20:25 orion rpcbind: warning: /etc/hosts.allow, line 23: cannot
> open /
> etc/hosts.allow: Too many open files in system
> --
>
> Running rpcinfo -p <hostname> from a remote system can be used to
> benchmark this FreeBSD system. sockstat shows the TCP connects to rpcbind
> from the remote system and everything is fine.
>
>
> If rpcbind is _not_ started at boottime, but from the commandline once the
> system is up, rpcinfo -p localhost works as expected.
>
> I want to run NIS on the system, so rpcbind must run in reliable manner.
>
> Any help is much appreciated.
> --
> Volker Jahns, volker at thalreit.de
>