On Fri, 14 Jan 2011, Nick Piggin wrote: > On Fri, Jan 14, 2011 at 3:41 AM, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote: > > On Thu, 13 Jan 2011, J. R. Okajima wrote: > >> Thomas Gleixner: > >> > The dcache scalability work broke NFS root filesystems. > >> ::: > >> > Check for parent equal dentry and skip the nested lock to avoid the > >> > deadlock. I'm sure this is the wrong fix, but at least it "works" :) > >> > >> With this patch, can you unmount it cleanly? > >> It skips incrementing d_count for both dentries. > >> Do we need at least one? > > > > Yeah thanks everyone for reporting this. > > I have a fix for it in a slightly different way, and a couple of other reported > bugs, which are going through stress testing now. Can you point us to the patches, so we can run our own set of tests in paralell? Thanks, tglx
