On Tue, 07 Dec 2010 23:19:32 -0500 Trond Myklebust <Trond.Myklebust@xxxxxxxxxx> wrote: > On Tue, 2010-12-07 at 22:45 -0500, Trond Myklebust wrote: > > On Tue, 2010-12-07 at 22:17 -0500, Trond Myklebust wrote: > > > OK... I think I see why the hang: > > > > > > I believe that it is basically due to nfs_clear_page_tag_locked() making > > > the assumption that if req->wb_page != NULL, then the corresponding > > > nfsi->nfs_page_tree lock tag needs to be cleared. > > > > > > Maybe we can do that differently by just setting a flag to indicate > > > whether or not this request is mapped into the radix tree... > > > > The following patch is completely untested, but should do the trick.... > > ...and it appears to work correctly for me. > Hi Trond, I've gotten some preliminary results with the patch that I backported to RHEL5: -----------------------[snip]------------------ FYI, this version has been running now for about 18 hours on the same [host] where I originally observed this problem. A full run takes 48 hours, but this is well beyond the normal point of failure so I thought I'd share preliminary results. -----------------------[snip]------------------ So, it looks good so far. If you like, you can add my. I'll let you know once the run is done. Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
