On Tue, May 29, 2012 at 11:59 PM, Amon Ott <a.ott@xxxxxxxxxxxx> wrote: > AFAIR, when the deadlocks came, there were some GB of the 12 GB RAM still > unused, not even for caching. But it might be a problem with low memory, > because we are running with 32 Bit. > > Would it be possible to preallocate a significant amount of RAM for the > purpose of syncing? I would not mind reserving a few 100 MB for that, but > deadlocks must not happen in any case. Can the size of the journal give a > hint on how much is needed? The code & complexity overhead of managing that reserved buffer has so far prevented that approach from being really adopted, anywhere in the Linux kernel community, as far as I know. -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html