Re: [locking/paravirt] static_key_disable_cpuslocked(): static key 'virt_spin_lock_key+0x0/0x20' used before call to jump_label_init()

From: Dou Liyang
Date: Mon Oct 30 2017 - 04:43:51 EST


Hi Fengguang,

There are two different warning.

At 10/30/2017 03:35 PM, Fengguang Wu wrote:
On Sun, Oct 29, 2017 at 11:51:55PM +0100, Fengguang Wu wrote:
Hi Linus,

Up to now we see the below boot error/warnings when testing v4.14-rc6.


The original warning:

WARNING:at_arch/x86/events/intel/core.c:#intel_pmu_handle_irq: 1

in v4.14-rc6, which happens rarely.

They hit the RC release mainly due to various imperfections in 0day's
auto bisection. So I manually list them here and CC the likely easy to
debug ones to the corresponding maintainers in the followup emails.

boot_successes: 4700
boot_failures: 247

[...]

WARNING:at_kernel/jump_label.c:#static_key_disable_cpuslocked: 7


This is a new warning in tip tree, and the patch has sent[1].

[1]https://lkml.org/lkml/2017/10/28/4

we may need do it in v4.14-rc6, not in tip tree directly.

Thanks,
dou.