On Wed, Dec 10, 2014 at 12:56 PM, Mark Salter <msal...@redhat.com> wrote: > Using Linus' tree from this morning, I am hitting: > > [ 0.000000] BUG: failure at > ./arch/arm64/include/asm/arch_timer.h:112/arch_counter_get_cntpct! > > This is triggered by commit 0b46b8a718 ("clocksource: arch_timer: Fix > code to use physical timers when requested") which addresses an armv7 > problem. Arm64 wants to always use a virtual timer. I used this to avoid > the BUG and get a booting kernel: > > diff --git a/drivers/clocksource/arm_arch_timer.c > b/drivers/clocksource/arm_arch > index 71846f9..4d8a01e 100644 > --- a/drivers/clocksource/arm_arch_timer.c > +++ b/drivers/clocksource/arm_arch_timer.c > @@ -468,7 +468,7 @@ static void __init arch_counter_register(unsigned type) > > /* Register the CP15 based counter if we have one */ > if (type & ARCH_CP15_TIMER) { > - if (arch_timer_use_virtual) > + if (IS_ENABLED(CONFIG_ARM64) || arch_timer_use_virtual) > arch_timer_read_counter = arch_counter_get_cntvct; > else > arch_timer_read_counter = arch_counter_get_cntpct; > >
Yes Catalin has prepared a similar patch: https://patchwork.kernel.org/patch/5468031/ -- 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/