On Wed, Mar 19, 2014 at 08:56:19PM +0530, Srikar Dronamraju wrote: > There are 332 tasks all stuck in futex_wait_queue_me(). > I am able to reproduce this consistently. > > Infact I can reproduce this if the java_constraint is either node, socket, > system. > However I am not able to reproduce if java_constraint is set to core.
What's any of that mean? > I ran git bisect between v3.12 and v3.14-rc6 and found that > > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b0c29f79ecea0b6fbcefc999e70f2843ae8306db > > commit b0c29f79ecea0b6fbcefc999e70f2843ae8306db > Author: Davidlohr Bueso <davidl...@hp.com> > Date: Sun Jan 12 15:31:25 2014 -0800 > > futexes: Avoid taking the hb->lock if there's nothing to wake up > > was the commit thats causing the threads to be stuck in futex. > > I reverted b0c29f79ecea0b6fbcefc999e70f2843ae8306db on top of v3.14-rc6 and > confirmed that > reverting the commit solved the problem. Joy,.. let me look at that with ppc in mind. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
