I presume swap over iSCSI and NFS are still prone to deadlock? I've seen no followup to this thread back in 2007: http://kerneltrap.org/Linux/Swap_Over_NFS other than this thread not finding a definitive answer: http://groups.google.com/group/open-iscsi/browse_thread/thread/bdff452079696... Can anyone trace whether these patches and iscsi patches ever made it upstream? It'd be a pity to waste all the memory in my new NAS. Swap to something essentially seekless would be quite nice. -- Tim Connors
On Saturday 11 February 2012 17:09:38 Tim Connors wrote:
I presume swap over iSCSI and NFS are still prone to deadlock?
It was brought up at the October 2011 kernel summit: https://lwn.net/Articles/464292/ # Swapping over NBD and NFS remains a requested feature; the patches # are not popular, but the distributors are shipping them in their # kernels anyway. Swap over iSCSI is likely to be added in the near # future. There is a clear demand for this feature; it will probably # have to go in at some point. That links to the "Safely swapping over the net" article from April 2011 which details why this is a hard issue: https://lwn.net/Articles/439298/ I strongly suggest people who can afford to do subscribe to LWN, it's an awesome resource and Jon Corbet is one of those rare writers who can write accessible, funny and readable articles on topics that would normally be considered horribly dry. They do an invaluable job for the Linux community. cheers, Chris (LWN maniacal supporter, member #2624) -- Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC This email may come with a PGP signature as a file. Do not panic. For more info see: http://en.wikipedia.org/wiki/OpenPGP
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