On Sun, 2015-06-21 at 03:30 +0100, Ben Hutchings wrote: > Control: reassign -1 src:linux 4.0.2-1 > > On Wed, 2015-06-17 at 21:53 +0200, Kai Lüke wrote: > > Package: linux-image-4.0.0-1-amd64 > > Version: 4.0.2-1 > > > > Hello, > > > > when switching from 3.16 to 4.0 with kernel command line zswap.enabled=1 > > the following messages are printed and zswap is not working. > > > > [ 0.898384] zpool: loaded > > [ 0.930753] zswap: loading zswap > > [ 0.930755] zpool: creating pool type zbud > > [ 0.932435] zpool: no driver for type zbud > > [ 0.932508] zswap: zbud zpool not available > > [ 0.932567] zswap: zpool creation failed > > > > zbud is the default memory allocation backend used in zswap. In 3.16 > > CONFIG_ZBUD was enabled but in 4.0 it is not. I could not find a note on > > this in the changelog and am so asking whether it can be enabled again. > > This was not intentional. CONFIG_ZBUD used to be automatically enabled > along with CONFIG_ZSMALLOC, but now we need to explicitly enable it.
Sorry, I mean it used to be enabled along with CONFIG_ZSWAP. zswap now supports using either zsmalloc and zbud; you can use the module parameter zpool to select which to use. (Though, if only zsmalloc is built, it *ought* to get selected by default.) Anyway, I'll fix this. Ben. -- Ben Hutchings You can't have everything. Where would you put it?
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