On Mon, Nov 23, 2015 at 02:59:06PM +0300, [email protected] wrote: > From: Nikita Yushchenko <[email protected]> > > While running an imx6s boasrd, I got following message in boot log: > > [ 0.032414] CPU1: failed to boot: -38 > > This looked strange: imx6s is singe-core and kernel perfectly knows > that. However, for some reason it tries to initialize CPU 1? > > I found this to be caused by > - CONFIG_SMP_ON_UP successfully detects that system is single core, > - this causes is_smp() to return false, > - this causes setup_arch() to skip smp_init_cpus() call, > - this skips board-specific code that sets cpu_possible mask.
Right, so you should end up with the possible and present masks containing just one CPU, which should prevent the kernel trying to bring any secondary CPUs online. -- FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
