Did an "global" up2date run on some 2.1 boxes this weekend, now all 4 ones show this behaviour:


$ sudo vim ifup-aliases
Password:
Segmentation fault
$ sudo vim ifup-aliases
$

It might be related to PAM and/or LDAP. The segfaults seem to only happen after entering a password (but not always), then disappear for a while...

Any Ideas?

Thanks

haddel

This is really strange....



$ ulimit -a
core file size (blocks) 0
data seg size (kbytes) unlimited
file size (blocks) unlimited
max locked memory (kbytes) unlimited
max memory size (kbytes) unlimited
open files 1024
pipe size (512 bytes) 8
stack size (kbytes) 8192
cpu time (seconds) unlimited
max user processes 16000
virtual memory (kbytes) unlimited

$ ulimit -c unlimited
bash2: ulimit: cannot modify limit: Operation not permitted

$ ulimit -c 650000

$ ulimit -a
core file size (blocks) 650000
data seg size (kbytes) unlimited
file size (blocks) unlimited
max locked memory (kbytes) unlimited
max memory size (kbytes) unlimited
open files 1024
pipe size (512 bytes) 8
stack size (kbytes) 8192
cpu time (seconds) unlimited
max user processes 16000
virtual memory (kbytes) unlimited

$ cd /tmp/
$ sudo -k
$ sh -x catchsegv sudo ls
+ test 2 -eq 0
+ prog=sudo
+ shift
+ test 1 -eq 0
++ basename sudo
+ segv_output=sudo.segv.16866
+ rm -f sudo.segv.16866
+ exec
Password:
+ exval=139
+ test -f sudo.segv.16866
+ exit 139

Report it to Red Hat technical support, I guess they pushed a bad update.

I did it, but I hoped that on guy here know the problem.
Red Hat knew the problem since a couple of weeks.


Cheers

Did the update actually update sudo or what other packages were updated? Perhaps a dependency was updated but not sudo, causing these errors.

I did a global update (about 100 updates).
I think that can be a problem with PAM, this rpm was on of the updated rpms.

Looks like the nscd was no red herring at all....

After disabling, I get reasonable results on all hosts that suffered before, and starting the nscd on the old UAT box that had no problems rendered that box unuseable (init-script not coming back to prompt, not accepting ssh logins).

I'll deactivate nscd now and see if they behave fair.

After several tests, all looks good.
Problem fixed.......

;-))