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Options to stop processes that can't be killed -9 other than reboot

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Hi

I have 2 processes (shown by ps -ef  below) which has 'jammed' the tape
drive below & I can't "kill -9" them.

Is there any way short of reboot to stop them, say "service xxx restart" or
anything else other than rebooting this Linux 4.x server?  Since reboot
involves doing "service stop xxx" of various services, surely one of the
xxx must be able to stop the processes (just an educated guess).  We
faced this issue with our Dataprotector quite often so frequent reboot
is not an option.

# ps -ef |grep -i bma |grep -v grep
root     10197     1  0 Aug13 ?        00:00:08 /opt/omni/lbin/vbda
-bmaname HP:Ultrium 4-SCSI_4 -type 2 -start 1313175661 -level 0
-access 1 0 -protection 2 1209600 -name / -ma xxxdgjt1.ss.de 22000 -id
1313175612 -volume / -profile -no_lock -hlink -no_touch -no_encode
-no_expand_sparse -no_nwuncompress -no_compress -no_preview -profile
-report 0 -on_busy  2 -no_nthlink -archattr -share_info -objname 02
xxxdgjt1.ss.de:/ // / -no_aligned
root     23303     1  0 Aug13 ?        00:00:03 /opt/omni/lbin/vbda
-bmaname HP:Ultrium 4-SCSI_1 -type 2 -start 1313192083 -level 0
-access 1 0 -protection 2 1209600 -name / -ma xxxdgjt1.ss.de 22000 -id
1313192026 -volume / -profile -no_lock -hlink -no_touch -no_encode
-no_expand_sparse -no_nwuncompress -no_compress -no_preview -profile
-report 0 -on_busy  2 -no_nthlink -archattr -share_info -objname 02
xxxdgjt1.ss.de:/ // / -no_aligned
root     25618     1  0 Aug13 ?        00:00:03 /opt/omni/lbin/vbda
-bmaname HP:Ultrium 4-SCSI_1 -type 2 -start 1313195066 -level 0
-access 1 0 -protection 2 1209600 -name / -ma xxxdgjt1.ss.de 22000 -id
1313195016 -volume / -profile -no_lock -hlink -no_touch -no_encode
-no_expand_sparse -no_nwuncompress -no_compress -no_preview -profile
-report 0 -on_busy  2 -no_nthlink -archattr -share_info -objname 02
xxxdgjt1.ss.de:/ // / -no_aligned


they're listening on the Tcp ports :

[root@xxxdgjt1 ~]# netstat -antp | grep 25618
tcp       21      0 172.17.1.47:5555            172.17.12.12:2128
     CLOSE_WAIT  25618/vbda
[root@xxxdgjt1 ~]# netstat -antp | grep 23303
tcp       21      0 172.17.1.47:5555            172.17.12.12:2073
     CLOSE_WAIT  23303/vbda


fuser all other partitions do not show processes locking/opening files, only the
root (ie / ) partition :

# fuser / |grep 25618    ==> will show 25618 & 25618r as amongst the processes
# fuser / |grep 23303    ==> will show 23303 & 23303r as amongst the processes


# cd /etc
# ls */*omni*
xinetd.d/omni

opt/omni:
client  server

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