On Mon, Jan 23, 2017 at 7:03 PM, Alexandr [off-list ref] wrote:

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quoted

Why would you do this?  There's no benefit of using zswap together
with zram.

i just wanted to test zram and zswap, i still not dig to deep in it,
but what i wanted is to use zram swap (with zswap disabled), and if it
exceeded use real swap on block device with zswap enabled.

I don't believe that's possible, you can't enable zswap for only
specific swap devices; and anyway, if you fill up zram, you won't
really have any memory left for zswap to use will you?

However, it shouldn't encounter any BUG(), like you saw.  If it's
reproducable for you, can you give details on how to reproduce it?

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