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thecooptoo
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Joined: 27 Apr 2003
Posts: 1353
Location: UK
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 Posted: Tue Oct 11, 2005 9:48 am Post subject: cant unmount or kill a nfs share |
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its mounted , but i cant unmount it or kill the processes.
| Code: | nervada / # mount |grep grenada
grenada:/ on /mnt/router type nfs (ro,addr=192.168.0.1,addr=192.168.0.1)
nervada / # umount /mnt/router
umount: /mnt/router: device is busy
umount: /mnt/router: device is busy
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so I try
| Code: | nervada / # fuser -ki /mnt/router
/mnt/router: 28576c 28594c 28617c
Kill process 28576 ? (y/N) y
Kill process 28594 ? (y/N) y
Kill process 28617 ? (y/N) y
No automatic removal. Please use umount /mnt/router
nervada / # umount /mnt/router
umount: /mnt/router: device is busy
umount: /mnt/router: device is busy
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and then
| Code: | nervada / # lsof |grep router
ls 28576 root cwd DIR 0,17 4096
ls 28576 root 3r DIR 0,17 4096
ls 28594 root cwd DIR 0,17 4096
ls 28594 root 3r DIR 0,17 4096
ls 28617 root cwd DIR 0,17 4096
ls 28617 root 3r DIR 0,17 4096
nervada / # kill 28576
nervada / # lsof |grep router
ls 28576 root cwd DIR 0,17 4096
ls 28576 root 3r DIR 0,17 4096
ls 28594 root cwd DIR 0,17 4096
ls 28594 root 3r DIR 0,17 4096
ls 28617 root cwd DIR 0,17 4096
ls 28617 root 3r DIR 0,17 4096
nervada / # |
and not a stale file handle in sight !
Where to from here ?
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Sleipnir
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Joined: 20 Sep 2005
Posts: 372
Location: Germany
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| Posted: Tue Oct 11, 2005 11:16 am Post subject: |
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Try a
instead of
The -9 sends the KILL signal instead of a TERM signal (view kill manpage).
This should kill really kill the process...
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thecooptoo
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Joined: 27 Apr 2003
Posts: 1353
Location: UK
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| Posted: Tue Oct 11, 2005 11:38 am Post subject: |
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| Code: | nervada ~ # lsof |grep router
ls 28576 root cwd DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28576 root 3r DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28594 root cwd DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28594 root 3r DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28617 root cwd DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28617 root 3r DIR 0,17 4096 2 /mnt/router (grenada:/)
nervada ~ # kill -9 28576
nervada ~ # lsof |grep router
ls 28576 root cwd DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28576 root 3r DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28594 root cwd DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28594 root 3r DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28617 root cwd DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28617 root 3r DIR 0,17 4096 2 /mnt/router (grenada:/)
nervada ~ # kill -9 28594
nervada ~ # lsof |grep router
ls 28576 root cwd DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28576 root 3r DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28594 root cwd DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28594 root 3r DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28617 root cwd DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28617 root 3r DIR 0,17 4096 2 /mnt/router (grenada:/)
nervada ~ # kill -9 28617
nervada ~ # lsof |grep router
ls 28576 root cwd DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28576 root 3r DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28594 root cwd DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28594 root 3r DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28617 root cwd DIR 0,17 4096 2 /mnt/router (grenada:/)
ls 28617 root 3r DIR 0,17 4096 2 /mnt/router (grenada:/)
nervada ~ # |
asn they are still all there!
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Sleipnir
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Joined: 20 Sep 2005
Posts: 372
Location: Germany
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| Posted: Tue Oct 11, 2005 11:51 am Post subject: |
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Can you please get the state and the process name for the pids!? Maybe this
things waiting for a child to finish or something like this.  
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thecooptoo
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Joined: 27 Apr 2003
Posts: 1353
Location: UK
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| Posted: Tue Oct 11, 2005 12:06 pm Post subject: |
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| Quote: | | Can you please get the state and the process name for the pids |
how ?
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Sleipnir
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Joined: 20 Sep 2005
Posts: 372
Location: Germany
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| Posted: Tue Oct 11, 2005 12:54 pm Post subject: |
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Get the complete process list with hierarchical ordering via
and search for your processes. Maybe they have childs or
parents you have to kill!? It really just a thought...
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thecooptoo
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Joined: 27 Apr 2003
Posts: 1353
Location: UK
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| Posted: Tue Oct 11, 2005 1:03 pm Post subject: |
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| Code: | nervada ~ # ps aux -H |grep router
root 31182 0.0 0.2 1652 484 pts/5 S+ 13:03 0:00 grep router
root 15278 0.0 0.2 1620 468 ? D Oct01 0:01 cp -axu /mnt/router/bin /mnt/router/boot /mnt/router/dev /mnt/ro uter/etc /mnt/router/fileshare /mnt/router/home /mnt/router/lib /mnt/router/lost+found /mnt/router/mnt /mnt/router/opt /mnt/router/proc /mnt/ router/root /mnt/router/sbin /mnt/router/sys /mnt/router/tmp /mnt/router/usr /mnt/router/var /mnt/media/backup/router/
nervada ~ # |
weve got a cron job running as a backup and it doesnt seem to be working which is what Im trying to sort out.
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Sleipnir
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Joined: 20 Sep 2005
Posts: 372
Location: Germany
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| Posted: Tue Oct 11, 2005 1:08 pm Post subject: |
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The D in front of the copy command means <defunct>.
Quoting the ps manpage:
| Code: |
Processes marked <defunct> are dead processes (so-called "zombies")
that remain because their parent has not destroyed them properly. These
processes will be destroyed by init(8) if the parent process exits.
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So omit the pipe to grep, search the process and kill the parents!
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thecooptoo
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Posts: 1353
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| Posted: Tue Oct 11, 2005 1:44 pm Post subject: |
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thanks - Im almost at just rebooting the thing. heres a bit of ps aux -H
| Code: | root 2631 0.0 0.3 2600 860 pts/5 R+ 13:39 0:00 ps aux -H
root 4685 99.7 27.7 306160 62208 ? SNl Sep24 24181:01 java -Xmx128m -Djava.library.path=. -Dsun.net.inetaddr.ttl=0 -Dnetworkaddress.ca
root 4779 0.0 0.2 1636 632 tty2 Ss+ Sep24 0:00 /sbin/agetty 38400 tty2 linux
root 4780 0.0 0.2 1636 632 tty3 Ss+ Sep24 0:00 /sbin/agetty 38400 tty3 linux
root 4781 0.0 0.2 1636 632 tty4 Ss+ Sep24 0:00 /sbin/agetty 38400 tty4 linux
root 4782 0.0 0.2 1636 632 tty5 Ss+ Sep24 0:00 /sbin/agetty 38400 tty5 linux
root 4783 0.0 0.2 1636 632 tty6 Ss+ Sep24 0:00 /sbin/agetty 38400 tty6 linux
root 4916 0.0 0.6 2880 1412 ? Ss Sep24 0:00 SCREEN
root 4917 0.0 0.6 2600 1464 pts/1 Ss+ Sep24 0:00 -/bin/bash
root 5191 0.0 0.2 1636 632 tty1 Ss+ Sep24 0:00 /sbin/agetty 38400 tty1 linux
root 15278 0.0 0.2 1620 468 ? D Oct01 0:01 cp -axu /mnt/router/bin /mnt/router/boot /mnt/router/dev /mnt/router/etc /mnt/rout
root 28576 0.0 0.2 1756 484 ? D Oct10 0:00 ls
root 28594 0.0 0.2 1756 484 ? D Oct10 0:00 ls
root 28617 0.0 0.2 1756 484 ? D Oct10 0:00 ls
rpc 30471 0.0 0.2 1840 656 ? Ss 09:28 0:00 /sbin/portmap
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is , i think the relevant output .
the cp -axu line doesnt seem to have any parents ( am i interpreting this correctly?) and neither do the ls lines with D
but kill -9 15278/28576 etc doesnt remove it
root 36 19 298m 60m 7188 S 99.7 27.8 24183:54 java
and WTF is the java process that going on?
reboot coming.........
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pelacables
Tux's lil' helper
Joined: 13 Apr 2004
Posts: 120
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| Posted: Tue Oct 11, 2005 2:02 pm Post subject: |
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For what I know, the only way to kill defunct process is rebooting.
regards, |
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Sleipnir
Guru
Joined: 20 Sep 2005
Posts: 372
Location: Germany
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| Posted: Tue Oct 11, 2005 3:11 pm Post subject: |
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That is partly correct.  AFAIK init gets the parent if the real parent died without
killing its childs after backgrounding. And if init is the parent then only a reboot
helps, I think.
@thecooptoo
You interpreted the output correct. If no parent is there, the init process is the
parent... maybe an init 3 also helps!?
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