Messages in this thread |  | | Date | Thu, 20 Sep 2001 08:13:53 +0200 | From | Jens Axboe <> | Subject | Re: encrypted swap on loop in 2.4.10-pre12? |
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On Thu, Sep 20 2001, Jari Ruusu wrote: > "steve j. kondik" wrote: > > i've been using encrypted swap over loopdev using the new cryptoapi > > patches. i just built a 2.4.10-pre12 kernel and i got a panic doing > > mkswap on the loopdev. the mkswap process becomes unkillable after this > > and never finishes. this is repeatable everytime. i've had no problems > > whatsoever until this kernel even under high load.. any ideas? :> > > Cryptoapi can't be used to encrypt swap. It has nasties like sleeping in > make_request_fn() and potential memory allocation deadlock.
sleeping in make_request_fn is not a nasty in itself, btw. in fact loop just needs an emergency page pool for swap to be perfectly safe.
-- Jens Axboe
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