On 03.05.2013, at 18:11, Mihai Caraman wrote:
A change in the generic code highlighted that we were running with IRQs
(soft) enabled on Book3E 64-bit when trying to restart interrupts from
handle_exit(). This is a lesson to configure lockdep often :)
There is no reason to exit guest with
On 05/03/2013 11:11:10 AM, Mihai Caraman wrote:
A change in the generic code highlighted that we were running with
IRQs
(soft) enabled on Book3E 64-bit when trying to restart interrupts from
handle_exit(). This is a lesson to configure lockdep often :)
There is no reason to exit guest with
-Original Message-
From: Wood Scott-B07421
Sent: Friday, May 03, 2013 9:05 PM
To: Caraman Mihai Claudiu-B02008
Cc: kvm-...@vger.kernel.org; kvm@vger.kernel.org; linuxppc-
d...@lists.ozlabs.org; Caraman Mihai Claudiu-B02008
Subject: Re: [PATCH] KVM: PPC: Book3E 64: Fix IRQs warnings
-B02008
Subject: Re: [PATCH] KVM: PPC: Book3E 64: Fix IRQs warnings and
hangs
The unresponsiveness has to do with the fact that
arch_local_irq_restore()
does not guarantees to hard enable interrupts.
Could you elaborate? If the saved IRQ state was enabled, why
wouldn't
-Original Message-
From: Wood Scott-B07421
Sent: Friday, May 03, 2013 11:15 PM
To: Caraman Mihai Claudiu-B02008
Cc: Wood Scott-B07421; kvm-...@vger.kernel.org; kvm@vger.kernel.org;
linuxppc-...@lists.ozlabs.org
Subject: Re: [PATCH] KVM: PPC: Book3E 64: Fix IRQs warnings and hangs
On Fri, 2013-05-03 at 18:24 +0200, Alexander Graf wrote:
There is no reason to exit guest with soft_enabled == 1, a
local_irq_enable()
call will do this for us so get rid of kvmppc_layz_ee() calls. With this fix
we eliminate irqs_disabled() warnings and some guest and host hangs revealed
: Re: [PATCH] KVM: PPC: Book3E 64: Fix IRQs warnings and
hangs
The unresponsiveness has to do with the fact that
arch_local_irq_restore()
does not guarantees to hard enable interrupts.
Could you elaborate? If the saved IRQ state was enabled, why
wouldn't
-Original Message-
From: Wood Scott-B07421
Sent: Saturday, May 04, 2013 1:07 AM
To: Caraman Mihai Claudiu-B02008
Cc: Wood Scott-B07421; kvm-...@vger.kernel.org; kvm@vger.kernel.org;
linuxppc-...@lists.ozlabs.org
Subject: Re: [PATCH] KVM: PPC: Book3E 64: Fix IRQs warnings and hangs
Subject: Re: [PATCH] KVM: PPC: Book3E 64: Fix IRQs warnings and
hangs
I replaced the two calls to kvmppc_lazy_ee_enable() with calls to
hard_irq_disable(), and it seems to be working fine.
Please take a look on 'KVM: PPC64: booke: Hard disable interrupts when
entering guest' RFC thread and see
On 03.05.2013, at 18:11, Mihai Caraman wrote:
A change in the generic code highlighted that we were running with IRQs
(soft) enabled on Book3E 64-bit when trying to restart interrupts from
handle_exit(). This is a lesson to configure lockdep often :)
There is no reason to exit guest with
On 05/03/2013 11:11:10 AM, Mihai Caraman wrote:
A change in the generic code highlighted that we were running with
IRQs
(soft) enabled on Book3E 64-bit when trying to restart interrupts from
handle_exit(). This is a lesson to configure lockdep often :)
There is no reason to exit guest with
-Original Message-
From: Wood Scott-B07421
Sent: Friday, May 03, 2013 9:05 PM
To: Caraman Mihai Claudiu-B02008
Cc: kvm-ppc@vger.kernel.org; k...@vger.kernel.org; linuxppc-
d...@lists.ozlabs.org; Caraman Mihai Claudiu-B02008
Subject: Re: [PATCH] KVM: PPC: Book3E 64: Fix IRQs warnings
-B02008
Subject: Re: [PATCH] KVM: PPC: Book3E 64: Fix IRQs warnings and
hangs
The unresponsiveness has to do with the fact that
arch_local_irq_restore()
does not guarantees to hard enable interrupts.
Could you elaborate? If the saved IRQ state was enabled, why
wouldn't
-Original Message-
From: Wood Scott-B07421
Sent: Friday, May 03, 2013 11:15 PM
To: Caraman Mihai Claudiu-B02008
Cc: Wood Scott-B07421; kvm-ppc@vger.kernel.org; k...@vger.kernel.org;
linuxppc-...@lists.ozlabs.org
Subject: Re: [PATCH] KVM: PPC: Book3E 64: Fix IRQs warnings and hangs
On Fri, 2013-05-03 at 18:24 +0200, Alexander Graf wrote:
There is no reason to exit guest with soft_enabled == 1, a
local_irq_enable()
call will do this for us so get rid of kvmppc_layz_ee() calls. With this fix
we eliminate irqs_disabled() warnings and some guest and host hangs revealed
Subject: Re: [PATCH] KVM: PPC: Book3E 64: Fix IRQs warnings and
hangs
The unresponsiveness has to do with the fact that
arch_local_irq_restore()
does not guarantees to hard enable interrupts.
Could you elaborate? If the saved IRQ state was enabled, why
wouldn't
-Original Message-
From: Wood Scott-B07421
Sent: Saturday, May 04, 2013 1:07 AM
To: Caraman Mihai Claudiu-B02008
Cc: Wood Scott-B07421; kvm-ppc@vger.kernel.org; k...@vger.kernel.org;
linuxppc-...@lists.ozlabs.org
Subject: Re: [PATCH] KVM: PPC: Book3E 64: Fix IRQs warnings and hangs
Subject: Re: [PATCH] KVM: PPC: Book3E 64: Fix IRQs warnings and
hangs
I replaced the two calls to kvmppc_lazy_ee_enable() with calls to
hard_irq_disable(), and it seems to be working fine.
Please take a look on 'KVM: PPC64: booke: Hard disable interrupts when
entering guest' RFC thread and see
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