Messages in this thread | | | Subject | Re: Using IPC-calls in a device driver | Date | Mon, 31 May 1999 21:33:07 +0100 (BST) | From | Alan Cox <> |
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> > If you are swapping I doubt you can. A swap handler cannot do any memory > > allocations or may deadlock. Thats why we dont allow NFS swap for example. > > Isn't this what the network block device driver does/allows already? > (CONFIG_BLK_DEV_NBD)
If you try and swap over NBD your machine will deadlock. NBD works because it does some clever trickery, but thats not enough to work when swapping
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