In one of our redhat ES 4 server we see "crash" displayed against a user in the output of last command.

[unix syzadmin]

Hi,

In one of our redhat ES 4 server we see "crash" displayed against a user in
the output of last command.  What does this mean?.  Please suggest.

# more /etc/redhat-release
Red Hat Enterprise Linux ES release 4 (Nahant Update 2)

# last -n 10
skhan    pts/2        172.22.45.200    Mon Jun  5 11:03   still logged in
skhan    pts/2        172.22.45.148    Mon Jun  5 11:01 - 11:01  (00:00)
root     pts/1        172.22.45.148    Mon Jun  5 10:22   still logged in
reboot   system boot  2.6.9-22.EL      Mon Jun  5 05:41          (05:22)
skhan    pts/13       172.22.45.197    Sun Jun  4 17:32 - 17:34  (00:01)
skhan    pts/12       172.22.45.134    Sun Jun  4 16:03 - 18:28  (02:24)
*skhan    pts/11       172.22.45.200    Sun Jun  4 15:04 - crash  (14:36)
skhan    pts/10       172.22.45.200    Sun Jun  4 14:05 - crash  (15:36)
skhan    pts/9        172.22.45.200    Sun Jun  4 14:04 - crash  (15:36)
*skhan    pts/10       172.22.45.200    Sun Jun  4 13:42 - 14:04  (00:21)

Thanks & Regards,