Re: [4.4rt3] Preemption disabled at:[<ffff8000000aba44>] kvm_vcpu_ioctl+0x30c/0x750

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________________________________________
From: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Sent: Thursday, February 11, 2016 8:58 PM
To: Jaggi, Manish
Cc: Josh Cartwright; linux-rt-users; Christoffer Dall
Subject: Re: [4.4rt3] Preemption disabled at:[<ffff8000000aba44>] kvm_vcpu_ioctl+0x30c/0x750

* Jaggi, Manish | 2016-02-11 10:46:16 [+0000]:

>Thanks Josh.
>I tried both options
>a) replace prempt_XXX with migrate_XXX as per the patch
so Josh's patch worked, correct?

[manish] yes.
But latency is on higher side in vm. 

>b) replacing spin_lock in kvm_vgic_flush_hwstate with raw_spin_lock
>

Sebastian
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