[haiku-bugs] Re: [Haiku] #8971: When moving swap file locations, old swap file is left on each device
- From: "kallisti5" <trac@xxxxxxxxxxxx>
- Date: Mon, 10 Sep 2012 11:57:39 -0000
#8971: When moving swap file locations, old swap file is left on each device
-----------------------------+----------------------------
Reporter: kallisti5 | Owner: axeld
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: System/Kernel | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
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Description changed by kallisti5:
Old description:
> When you move swap locations, an old swap file is left on the previous
> device. This file can be erased by hand post-reboot, however it should be
> cleaned up automatically.
>
> Process:
> * Swap file location changed by user
> * Swap file is in use by os... so it can't be erased
> * After reboot, kernel uses new swap file specified.
> * Old swap file still exists.
>
> This is generally a problem of knowing where the old swap file *was* on
> reboot. a syscall may be a good solution (not requiring a reboot for
> swapfile changes, maybe a _kern_swap_reprovision call that will:
> * Make the kernel erase the flush the swap file into memory (if
> possible)
> * Make the kernel erase the current swap file from disk, and re-read the
> virtual_memory config to set up the new swap file.
New description:
When you move swap locations, an old swap file is left on the previous
device. This file can be erased by hand post-reboot, however it should be
cleaned up automatically.
Process:
* Swap file location changed by user
* Swap file is in use by os... so it can't be erased
* After reboot, kernel uses new swap file specified.
* Old swap file still exists.
This is generally a problem of knowing where the old swap file *was* on
reboot. a syscall may be a good solution (not requiring a reboot for
swapfile changes, maybe a _kern_swap_reprovision call that will:
* Make the kernel flush the swap file into memory (if possible or return
a failure)
* Make the kernel erase the current swap file from disk, and re-read the
virtual_memory config to set up the new swap file.
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Ticket URL: <http://dev.haiku-os.org/ticket/8971#comment:1>
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