Hey, On Tue, Dec 03, 2013 at 04:15:15PM -0500, Dave Jones wrote: > > > Somehow I just triggered this trace again, even with this commit applied. > > > The trace is pretty much identical to the old one. > > > > Hah, ain't that weird. That's the trace you reported on the other > > mail, right? I'll follow up on that one. > > just so there's no doubt, here's a fresh one.
Argh, found the culprit. The unified mmap path grabs of->mutex to check whether the file implements mmap, which means that if you try to mmap a file which doesn't implement mmap, you still add the locking dependency. I'm working on the fix. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
