Re: Re: broken umount -f

[Brian Tinsley <btinsley@emageon.com>]

Scott Mcdermott wrote:

>Trond Myklebust on Tue 14/01 20:06 +0100:
>  
>
>>Linux will not allow you to unmount without killing those processes,
>>and I'd be opposed to any patch that tries to kill active processes
>>from within the filesystem.  This is something that needs to be
>>resolved in userland.
>>    
>>
>
>Last I checked, the programs wouldn't die even with -KILL when they were
>stuck in device-wait state.  The only way to reboot a machine with such
>processes is to reboot -f, which is wrong.  The filesystems should be
>able to have forced umount at sysadmin's discretion.
>  
>
I've had luck with:

kill -9 <pids>
umount -f <nfs_dirs>
kill -9 <pids>
umount -f <nfs_dirs>

The last umount always works for me.


-- 

Brian Tinsley
Chief Systems Engineer
Emageon






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