On 10/02/2016 08:50 AM, Sander Eikelenboom wrote:
>
>>> Sure thing:
>>> addr2line -e vmlinux-4.8.0-rc8-20161002-linus-xennext+ ffffffff8101fdb9
>>> /usr/src/new/linux-linus/arch/x86/xen/irq.c:34
>>>
>>> asmlinkage __visible unsigned long xen_save_fl(void)
>>> {
>>> struct vcpu_info *vcpu;
>>> unsigned long flags;
>>>
>>> vcpu = this_cpu_read(xen_vcpu);
>>>
>>> /* flag has opposite sense of mask */
>>> flags = !vcpu->evtchn_upcall_mask; <== WHICH IS HERE
>>>
>>> /* convert to IF type flag
>>> -0 -> 0x00000000
>>> -1 -> 0xffffffff
>>> */
>>> return (-flags) & X86_EFLAGS_IF;
>>> }
>>
>>
>> Can you post your .config file?
>>
>> Our tests seem to have run fine yesterday with those branches, until
>> apparently electrical problem shut down the whole test farm this
>> morning.
>>
>> -boris
>
> Sure, it's attached.
I can reproduce this and will send a patch soon.
-boris
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