From: Cornelia Huck <cohuck@redhat.com>
To: Greg Kurz <groug@kaod.org>
Cc: "Laurent Vivier" <lvivier@redhat.com>,
qemu-devel@nongnu.org, qemu-ppc@nongnu.org,
"Cédric Le Goater" <clg@kaod.org>,
"Satheesh Rajendran" <sathnaga@linux.vnet.ibm.com>,
"David Gibson" <david@gibson.dropbear.id.au>
Subject: Re: [for-5.0 PATCH 0/4] ppc: Fix interrupt controller emulation
Date: Mon, 9 Dec 2019 12:07:35 +0100 [thread overview]
Message-ID: <20191209120735.4fe6e4ea.cohuck@redhat.com> (raw)
In-Reply-To: <20191209115947.2fb92760@bahia.w3ibm.bluemix.net>
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On Mon, 9 Dec 2019 11:59:47 +0100
Greg Kurz <groug@kaod.org> wrote:
> On Mon, 9 Dec 2019 12:14:28 +1100
> David Gibson <david@gibson.dropbear.id.au> wrote:
>
> > On Wed, Dec 04, 2019 at 08:43:31PM +0100, Greg Kurz wrote:
> > > Guest hangs have been observed recently on POWER9 hosts, specifically LC92x
> > > "Boston" systems, when the guests are being rebooted multiple times. The
> > > issue isn't POWER9 specific though. It is caused by a very long standing bug
> > > when using the uncommon accel=kvm,kernel-irqchip=off machine configuration
> > > which happens to be enforced on LC92x because of a host FW limitation. This
> > > affects both the XICS and XIVE emulated interrupt controllers.
> > >
> > > The actual fix is in patch 1. Patch 2 is a followup cleanup. The other
> > > patches are unrelated cleanups I came up with while investigating.
> > >
> > > Since this bug always existed and we're already in rc4, I think it is better
> > > to fix it in 5.0 and possibly backport it to stable and downstream if needed.
> >
> > Applied to ppc-for-5.0.
> >
> >
>
> According to Cornelia's comments, it seems I need to respin this against
> the s390-next branch to avoid conflicts.
Aren't these ppc-only patches, though? Confused.
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next prev parent reply other threads:[~2019-12-09 11:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-04 19:43 [for-5.0 PATCH 0/4] ppc: Fix interrupt controller emulation Greg Kurz
2019-12-04 19:43 ` [for-5.0 PATCH 1/4] ppc: Deassert the external interrupt pin in KVM on reset Greg Kurz
2019-12-04 19:43 ` [for-5.0 PATCH 2/4] xics: Don't deassert outputs Greg Kurz
2019-12-04 19:43 ` [for-5.0 PATCH 3/4] ppc: Don't use CPUPPCState::irq_input_state with modern Book3s CPU models Greg Kurz
2019-12-04 19:43 ` [for-5.0 PATCH 4/4] ppc: Ignore the CPU_INTERRUPT_EXITTB interrupt with KVM Greg Kurz
2019-12-09 1:14 ` [for-5.0 PATCH 0/4] ppc: Fix interrupt controller emulation David Gibson
2019-12-09 10:59 ` Greg Kurz
2019-12-09 11:07 ` Cornelia Huck [this message]
2019-12-09 11:14 ` Greg Kurz
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