On 17 July 2013 04:26, Andriy Gapon <avg_at_freebsd.org> wrote: > on 16/07/2013 22:40 Adrian Chadd said the following: >> :( So it's a deadlock. Ok, so what's next? > > A creative process... Wonderful. :) > One possibility is to add getnewvnode_reserve() calls before the ZFS transaction > beginnings in the places where a new vnode/znode may have to be allocated within > a transaction. > This looks like a quick and cheap solution but it makes the code somewhat messier. > > Another possibility is to change something in VFS machinery, so that VOP_RECLAIM > getting blocked for one filesystem does not prevent vnode allocation for other > filesystems. > > I could think of other possible solutions via infrastructural changes in VFS or > ZFS... Well, what do others think? This seems like a showstopper for systems with lots and lots of ZFS filesystems doing lots and lots of activity. -adrianReceived on Wed Jul 17 2013 - 15:19:04 UTC
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