can't cleanup /proc/swaps without rebooting ?

can't cleanup /proc/swaps without rebooting ?

[Jacky Malcles]

hi All,

Please could you cc me because I'm not subscribed.


is there a way, other than rebooting, to clean up /proc/swaps ?

I'm in this situation (due to testing errors),
# cat /proc/swaps
Filename                                Type            Size    Used    Priority
/dev/sdc1                               partition       2040064 0       -1
/tmp/swaH4mvTI/swapfilenext\040(deleted) file           48960   0       -31
/tmp/swa5TlBva/swapfilenext\040(deleted) file           49088   0       -118
#
# swapon -s
Filename                                Type            Size    Used    Priority
/dev/sdc1                               partition       2040064 0       -1
/tmp/swaH4mvTI/swapfilenext\040(deleted) file           48960   0       -31
/tmp/swa5TlBva/swapfilenext\040(deleted) file           49088   0       -118
#

many thanks,

-- 
  Jacky Malcles    	     B1-403   Email : Jacky.Malcles@bull.net
  Bull SA, 1 rue de Provence, B.P 208, 38432 Echirolles CEDEX, FRANCE
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Re: can't cleanup /proc/swaps without rebooting ?

[Erik Mouw]

On Thu, Jan 11, 2007 at 03:59:30PM +0100, Jacky Malcles wrote:
> is there a way, other than rebooting, to clean up /proc/swaps ?
> 
> I'm in this situation (due to testing errors),
> # cat /proc/swaps
> Filename                                Type            Size    Used    
> Priority
> /dev/sdc1                               partition       2040064 0       -1
> /tmp/swaH4mvTI/swapfilenext\040(deleted) file           48960   0       -31
> /tmp/swa5TlBva/swapfilenext\040(deleted) file           49088   0       -118
> #
> # swapon -s
> Filename                                Type            Size    Used    
> Priority
> /dev/sdc1                               partition       2040064 0       -1
> /tmp/swaH4mvTI/swapfilenext\040(deleted) file           48960   0       -31
> /tmp/swa5TlBva/swapfilenext\040(deleted) file           49088   0       -118
> #

"swapoff /dev/sdc1" or "swapoff /tmp/swa5TlBva/swapfilenext". Don't
know if the latter works when the file is unlinked, just try.


Erik

-- 
+-- Erik Mouw -- www.harddisk-recovery.com -- +31 70 370 12 90 --
| Lab address: Delftechpark 26, 2628 XH, Delft, The Netherlands

Re: can't cleanup /proc/swaps without rebooting ?

[Hugh Dickins]

On Thu, 11 Jan 2007, Jacky Malcles wrote:
> 
> is there a way, other than rebooting, to clean up /proc/swaps ?
> 
> I'm in this situation (due to testing errors),
> # cat /proc/swaps
> Filename                                Type            Size    Used
> Priority
> /dev/sdc1                               partition       2040064 0       -1
> /tmp/swaH4mvTI/swapfilenext\040(deleted) file           48960   0       -31
> /tmp/swa5TlBva/swapfilenext\040(deleted) file           49088   0       -118
> #
> #swapon -s
> Filename                                Type            Size    Used
> Priority
> /dev/sdc1                               partition       2040064 0       -1
> /tmp/swaH4mvTI/swapfilenext\040(deleted) file           48960   0       -31
> /tmp/swa5TlBva/swapfilenext\040(deleted) file           49088   0       -118
> #

Good question.  Sorry, I don't see another way than rebooting.
Next time you're testing, best keep a link to those swapfiles.
Not an answer to be proud of, but it looks like a better answer
would need a whole new syscall (or perhaps some /proc trickery).

Hugh