Hi,
> From: Michal Hocko [mailto:mho...@kernel.org]
> On Fri 31-07-15 11:23:00, 河合英宏 / KAWAI，HIDEHIRO wrote:
> > > From: Michal Hocko [mailto:mho...@kernel.org]
> > > > There is a timeout of 1000ms in nmi_shootdown_cpus(), so I don't know
> > > > why CPU 130 waits so long. I'll try to consider
On Fri 31-07-15 11:23:00, 河合英宏 / KAWAI，HIDEHIRO wrote:
> > From: Michal Hocko [mailto:mho...@kernel.org]
[...]
> > I am saying that watchdog_overflow_callback might trigger on more CPUs
> > and panic from NMI context as well. So this is not reduced to the NMI
> > button sends NMI to more CPUs.
>
On Fri 31-07-15 11:23:00, 河合英宏 / KAWAI，HIDEHIRO wrote:
From: Michal Hocko [mailto:mho...@kernel.org]
[...]
I am saying that watchdog_overflow_callback might trigger on more CPUs
and panic from NMI context as well. So this is not reduced to the NMI
button sends NMI to more CPUs.
I
Hi,
From: Michal Hocko [mailto:mho...@kernel.org]
On Fri 31-07-15 11:23:00, 河合英宏 / KAWAI，HIDEHIRO wrote:
From: Michal Hocko [mailto:mho...@kernel.org]
There is a timeout of 1000ms in nmi_shootdown_cpus(), so I don't know
why CPU 130 waits so long. I'll try to consider for a while.
> From: Michal Hocko [mailto:mho...@kernel.org]
>
> On Thu 30-07-15 11:55:52, 河合英宏 / KAWAI，HIDEHIRO wrote:
> > > From: Michal Hocko [mailto:mho...@kernel.org]
> [...]
> > > Could you point me to the code which does that, please? Maybe we are
> > > missing that in our 3.0 kernel. I was quite
From: Michal Hocko [mailto:mho...@kernel.org]
On Thu 30-07-15 11:55:52, 河合英宏 / KAWAI，HIDEHIRO wrote:
From: Michal Hocko [mailto:mho...@kernel.org]
[...]
Could you point me to the code which does that, please? Maybe we are
missing that in our 3.0 kernel. I was quite surprised to see
On Thu 30-07-15 11:55:52, 河合英宏 / KAWAI，HIDEHIRO wrote:
> > From: Michal Hocko [mailto:mho...@kernel.org]
[...]
> > Could you point me to the code which does that, please? Maybe we are
> > missing that in our 3.0 kernel. I was quite surprised to see this
> > behavior as well.
>
> Please see the
> From: Michal Hocko [mailto:mho...@kernel.org]
>
> On Thu 30-07-15 01:45:35, 河合英宏 / KAWAI，HIDEHIRO wrote:
> > Hi,
> >
> > > From: Michal Hocko [mailto:mho...@kernel.org]
> > >
> > > On Wed 29-07-15 09:09:18, 河合英宏 / KAWAI，HIDEHIRO wrote:
> [...]
> > > > #define nmi_panic(fmt, ...)
Hi,
> -Original Message-
> From: Michal Hocko [mailto:mho...@kernel.org]
>
> On Thu 30-07-15 07:33:15, 河合英宏 / KAWAI，HIDEHIRO wrote:
> [...]
> > Are you using SGI UV? On that platform, NMIs may be delivered to
> > all cpus because LVT1 of all cpus are not masked as follows:
>
> This is
On Thu 30-07-15 07:33:15, 河合英宏 / KAWAI，HIDEHIRO wrote:
[...]
> Are you using SGI UV? On that platform, NMIs may be delivered to
> all cpus because LVT1 of all cpus are not masked as follows:
This is Compute Blade 520XB1 from Hitachi with 240 cpus.
--
Michal Hocko
SUSE Labs
--
To unsubscribe
On Thu 30-07-15 01:45:35, 河合英宏 / KAWAI，HIDEHIRO wrote:
> Hi,
>
> > From: Michal Hocko [mailto:mho...@kernel.org]
> >
> > On Wed 29-07-15 09:09:18, 河合英宏 / KAWAI，HIDEHIRO wrote:
[...]
> > > #define nmi_panic(fmt, ...)\
> > >do {
Hi Michal,
> From: 河合英宏 / KAWAI，HIDEHIRO [mailto:hidehiro.kawai...@hitachi.com]
> > When I was testing my
> > previous approach (on 3.0 based kernel) I had basically the same thing
> > (one NMI to process panic) and others to return. This led to a strange
> > behavior when the NMI button
On Thu 30-07-15 11:55:52, 河合英宏 / KAWAI，HIDEHIRO wrote:
From: Michal Hocko [mailto:mho...@kernel.org]
[...]
Could you point me to the code which does that, please? Maybe we are
missing that in our 3.0 kernel. I was quite surprised to see this
behavior as well.
Please see the snippet
From: Michal Hocko [mailto:mho...@kernel.org]
On Thu 30-07-15 01:45:35, 河合英宏 / KAWAI，HIDEHIRO wrote:
Hi,
From: Michal Hocko [mailto:mho...@kernel.org]
On Wed 29-07-15 09:09:18, 河合英宏 / KAWAI，HIDEHIRO wrote:
[...]
#define nmi_panic(fmt, ...)
On Thu 30-07-15 01:45:35, 河合英宏 / KAWAI，HIDEHIRO wrote:
Hi,
From: Michal Hocko [mailto:mho...@kernel.org]
On Wed 29-07-15 09:09:18, 河合英宏 / KAWAI，HIDEHIRO wrote:
[...]
#define nmi_panic(fmt, ...)\
do {
On Thu 30-07-15 07:33:15, 河合英宏 / KAWAI，HIDEHIRO wrote:
[...]
Are you using SGI UV? On that platform, NMIs may be delivered to
all cpus because LVT1 of all cpus are not masked as follows:
This is Compute Blade 520XB1 from Hitachi with 240 cpus.
--
Michal Hocko
SUSE Labs
--
To unsubscribe from
Hi,
-Original Message-
From: Michal Hocko [mailto:mho...@kernel.org]
On Thu 30-07-15 07:33:15, 河合英宏 / KAWAI，HIDEHIRO wrote:
[...]
Are you using SGI UV? On that platform, NMIs may be delivered to
all cpus because LVT1 of all cpus are not masked as follows:
This is Compute
Hi Michal,
From: 河合英宏 / KAWAI，HIDEHIRO [mailto:hidehiro.kawai...@hitachi.com]
When I was testing my
previous approach (on 3.0 based kernel) I had basically the same thing
(one NMI to process panic) and others to return. This led to a strange
behavior when the NMI button triggered NMI on
Hi,
> From: Michal Hocko [mailto:mho...@kernel.org]
>
> On Wed 29-07-15 09:09:18, 河合英宏 / KAWAI，HIDEHIRO wrote:
> > > From: Michal Hocko [mailto:mho...@kernel.org]
> > > On Wed 29-07-15 05:48:47, 河合英宏 / KAWAI，HIDEHIRO wrote:
> > > > Hi,
> > > >
> > > > > From: linux-kernel-ow...@vger.kernel.org
On Wed 29-07-15 09:09:18, 河合英宏 / KAWAI，HIDEHIRO wrote:
> > From: Michal Hocko [mailto:mho...@kernel.org]
> > On Wed 29-07-15 05:48:47, 河合英宏 / KAWAI，HIDEHIRO wrote:
> > > Hi,
> > >
> > > > From: linux-kernel-ow...@vger.kernel.org
> > > > [mailto:linux-kernel-ow...@vger.kernel.org] On Behalf Of
> From: Michal Hocko [mailto:mho...@kernel.org]
> On Wed 29-07-15 05:48:47, 河合英宏 / KAWAI，HIDEHIRO wrote:
> > Hi,
> >
> > > From: linux-kernel-ow...@vger.kernel.org
> > > [mailto:linux-kernel-ow...@vger.kernel.org] On Behalf Of Hidehiro Kawai
> > > (2015/07/27 23:34), Michal Hocko wrote:
> > > >
On Wed 29-07-15 05:48:47, 河合英宏 / KAWAI，HIDEHIRO wrote:
> Hi,
>
> > From: linux-kernel-ow...@vger.kernel.org
> > [mailto:linux-kernel-ow...@vger.kernel.org] On Behalf Of Hidehiro Kawai
> > (2015/07/27 23:34), Michal Hocko wrote:
> > > On Mon 27-07-15 10:58:50, Hidehiro Kawai wrote:
> [...]
> > >
Hi,
From: Michal Hocko [mailto:mho...@kernel.org]
On Wed 29-07-15 09:09:18, 河合英宏 / KAWAI，HIDEHIRO wrote:
From: Michal Hocko [mailto:mho...@kernel.org]
On Wed 29-07-15 05:48:47, 河合英宏 / KAWAI，HIDEHIRO wrote:
Hi,
From: linux-kernel-ow...@vger.kernel.org
On Wed 29-07-15 09:09:18, 河合英宏 / KAWAI，HIDEHIRO wrote:
From: Michal Hocko [mailto:mho...@kernel.org]
On Wed 29-07-15 05:48:47, 河合英宏 / KAWAI，HIDEHIRO wrote:
Hi,
From: linux-kernel-ow...@vger.kernel.org
[mailto:linux-kernel-ow...@vger.kernel.org] On Behalf Of Hidehiro Kawai
On Wed 29-07-15 05:48:47, 河合英宏 / KAWAI，HIDEHIRO wrote:
Hi,
From: linux-kernel-ow...@vger.kernel.org
[mailto:linux-kernel-ow...@vger.kernel.org] On Behalf Of Hidehiro Kawai
(2015/07/27 23:34), Michal Hocko wrote:
On Mon 27-07-15 10:58:50, Hidehiro Kawai wrote:
[...]
The check could
From: Michal Hocko [mailto:mho...@kernel.org]
On Wed 29-07-15 05:48:47, 河合英宏 / KAWAI，HIDEHIRO wrote:
Hi,
From: linux-kernel-ow...@vger.kernel.org
[mailto:linux-kernel-ow...@vger.kernel.org] On Behalf Of Hidehiro Kawai
(2015/07/27 23:34), Michal Hocko wrote:
On Mon 27-07-15
Hi,
> From: linux-kernel-ow...@vger.kernel.org
> [mailto:linux-kernel-ow...@vger.kernel.org] On Behalf Of Hidehiro Kawai
> (2015/07/27 23:34), Michal Hocko wrote:
> > On Mon 27-07-15 10:58:50, Hidehiro Kawai wrote:
[...]
> > The check could be also relaxed a bit and nmi_panic would
> > return
Hi,
From: linux-kernel-ow...@vger.kernel.org
[mailto:linux-kernel-ow...@vger.kernel.org] On Behalf Of Hidehiro Kawai
(2015/07/27 23:34), Michal Hocko wrote:
On Mon 27-07-15 10:58:50, Hidehiro Kawai wrote:
[...]
The check could be also relaxed a bit and nmi_panic would
return only if the
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