Messages in this thread Patch in this message | | | Subject | arm64 hitting BUG in arch_timer.h | From | Mark Salter <> | Date | Wed, 10 Dec 2014 15:56:40 -0500 |
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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;
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