Paul, On 08.08.2016 22:35, Paul E. McKenney wrote: > On Mon, Aug 08, 2016 at 10:12:11PM +0200, Richard Weinberger wrote: >> Paul, >> >> Am 15.06.2016 um 14:45 schrieb Paul E. McKenney: >>> On Wed, Jun 15, 2016 at 09:05:37AM +0200, Richard Weinberger wrote: >>>> Paul, >>>> >>>> Am 15.06.2016 um 00:54 schrieb Paul E. McKenney: >>>>> On Mon, Jun 06, 2016 at 02:04:03AM +0800, kbuild test robot wrote: >>>>>> tree: >>>>>> https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git >>>>>> rcu/next >>>>>> head: 13ee0de9cd2444b57ce30c4f1607b49b90aa0c38 >>>>>> commit: f251ac814fc5787765009e60d54a2bd4277350c8 [25/36] rcu: Make >>>>>> call_rcu_tasks() tolerate first call with irqs disabled >>>>>> config: um-allmodconfig (attached as .config) >>>>>> compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430 >>>>>> reproduce: >>>>>> git checkout f251ac814fc5787765009e60d54a2bd4277350c8 >>>>>> # save the attached .config to linux build tree >>>>>> make ARCH=um >>>>> >>>>> My kneejerk reaction would be to make CONFIG_TASKS_RCU depend on >>>>> !UML or something similar. >>>>> >>>>> Another approach would be create a arch_irqs_disabled_flags() for UML. >>>>> >>>>> Any preferences? >>>> >>>> Patches for arch_irqs_disabled_flags() support are already on LKML: >>>> https://lkml.org/lkml/2016/6/12/162 >>>> >>>> My plan was to merge them in the v4.8 merge window. >>>> So having CONFIG_TASKS_RCU depend on !UML for now should be fine. >>>> We can remove the dependency in v4.8 again. >>> >>> Sounds very good, thank you! >> >> The patch is now in Linus' tree. So, you can enable CONFIG_TASKS_RCU >> for UML again. :-) > > Very good, thank you! I have a patch slated for the next merge window. > If you need it sooner, please let me know.
Just noticed that CONFIG_TASKS_RCU is still disabled for UML in today's next. Is there something missing in UML? Thanks, //richard ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
