Messages in this thread | | | Date | Sun, 11 Nov 2007 01:38:27 +0100 (CET) | From | Mikulas Patocka <> | Subject | Re: Temporary lockup on loopback block device |
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> > Arguably we just have the wrong backing-device here, and what we should do > > is to propagate the real backing device's pointer through up into the > > filesystem. There's machinery for this which things like DM stacks use. > > > > I wonder if the post-2.6.23 changes happened to make this problem go away. > > The per BDI dirty stuff in 24 should make this work, I just checked and > loopback thingies seem to have their own BDI, so all should be well.
This is not only about loopback (I think the lockup can happen even without loopback) --- the main problem is:
Why are there over-limit dirty pages that no one is writing?
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