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. Thanks, //richard ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports. http://pubads.g.doubleclick.net/gampad/clk?id=1444514421&iu=/41014381 _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
