2018-03-24 21:17-0700, Wanpeng Li:
> From: Wanpeng Li
>
> static_key_disable_cpuslocked(): static key 'virt_spin_lock_key+0x0/0x20'
> used before call to jump_label_init()
> WARNING: CPU: 0 PID: 0 at kernel/jump_label.c:161
> static_key_disable_cpuslocked+0x61/0x80
> RIP: 0010:static_key_dis
2018-03-28 0:29 GMT+08:00 Davidlohr Bueso :
> On Tue, 27 Mar 2018, Wanpeng Li wrote:
>
>> The host admin can control it by qemu command-line, -cpu
>> ...+kvm-hint-dedicated
>
>
> So this requires qemu code modification, no?
Yeah,
https://git.qemu.org/?p=qemu.git;a=commitdiff;h=be7773268d981764894
On Tue, 27 Mar 2018, Wanpeng Li wrote:
The host admin can control it by qemu command-line, -cpu ...+kvm-hint-dedicated
So this requires qemu code modification, no?
2018-03-27 6:32 GMT+08:00 Davidlohr Bueso :
> On Mon, 26 Mar 2018, Wanpeng Li wrote:
>
>> I didn't see any issue when testing this patch, could you elaborate
>> what's the bulky mechanism and how it conflicts with early smp bootup
>> stages? In addition, do you mean the xen fix is also not suitable
On Mon, 26 Mar 2018, Wanpeng Li wrote:
I didn't see any issue when testing this patch, could you elaborate
what's the bulky mechanism and how it conflicts with early smp bootup
stages? In addition, do you mean the xen fix is also not suitable?
I have nothing against your patch (or the xen one
2018-03-26 8:27 GMT+08:00 Davidlohr Bueso :
> On Sat, 24 Mar 2018, Wanpeng Li wrote:
>
>> Note: Peterz pointed out in the IRC we have to audit all the architectures
>> that
>> implement smp_prepare_boot_cpu() to see what they depend on if we want to
>> move
>> jump_label_init() before smp_prepare_b
On Sat, 24 Mar 2018, Wanpeng Li wrote:
Note: Peterz pointed out in the IRC we have to audit all the architectures that
implement smp_prepare_boot_cpu() to see what they depend on if we want to move
jump_label_init() before smp_prepare_boot_cpu(). So what this patch does is
similar to the issue w
From: Wanpeng Li
static_key_disable_cpuslocked(): static key 'virt_spin_lock_key+0x0/0x20' used
before call to jump_label_init()
WARNING: CPU: 0 PID: 0 at kernel/jump_label.c:161
static_key_disable_cpuslocked+0x61/0x80
RIP: 0010:static_key_disable_cpuslocked+0x61/0x80
Call Trace:
static_k
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