* [PATCH] ARC: [*defconfigs] Enable hung tasks detection
@ 2016-07-21 14:52 Eugeniy Paltsev
2016-07-21 16:17 ` Vineet Gupta
0 siblings, 1 reply; 3+ messages in thread
From: Eugeniy Paltsev @ 2016-07-21 14:52 UTC (permalink / raw)
To: linux-snps-arc
Cc: linux-kernel, Eugeniy Paltsev, Eugeniy Paltsev, Christian Ruppert,
Noam Camus, Vineet Gupta, Alexey Brodkin, Zakharov Vlad
Enable the kernel to detect "hung tasks",
which are bugs that cause the task to be stuck in
uninterruptible "D" state indefinitiley.
Note we're setting HUNG_TASK_TIMEOUT to 10 seconds instead of
default 120 to shorten time required for detection of hung task,
as it set in axs101, axs103 and axs103_smp boards defconfigs.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Cc: Christian Ruppert <christian.ruppert@alitech.com>
Cc: Noam Camus <noamca@mellanox.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Zakharov Vlad <vzakhar@synopsys.com>
---
arch/arc/configs/nps_defconfig | 2 ++
arch/arc/configs/nsim_700_defconfig | 2 ++
arch/arc/configs/nsim_hs_defconfig | 2 ++
arch/arc/configs/nsim_hs_smp_defconfig | 2 ++
arch/arc/configs/nsimosci_defconfig | 2 ++
arch/arc/configs/nsimosci_hs_defconfig | 3 +++
arch/arc/configs/nsimosci_hs_smp_defconfig | 3 +++
arch/arc/configs/tb10x_defconfig | 1 +
8 files changed, 17 insertions(+)
diff --git a/arch/arc/configs/nps_defconfig b/arch/arc/configs/nps_defconfig
index ede625c..39ccacd 100644
--- a/arch/arc/configs/nps_defconfig
+++ b/arch/arc/configs/nps_defconfig
@@ -81,4 +81,6 @@ CONFIG_DEBUG_INFO=y
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_MEMORY_INIT=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
CONFIG_ENABLE_DEFAULT_TRACERS=y
diff --git a/arch/arc/configs/nsim_700_defconfig b/arch/arc/configs/nsim_700_defconfig
index 7314f53..78c3070 100644
--- a/arch/arc/configs/nsim_700_defconfig
+++ b/arch/arc/configs/nsim_700_defconfig
@@ -61,4 +61,6 @@ CONFIG_TMPFS=y
CONFIG_NFS_FS=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
# CONFIG_DEBUG_PREEMPT is not set
diff --git a/arch/arc/configs/nsim_hs_defconfig b/arch/arc/configs/nsim_hs_defconfig
index a99dc7a..c6a0a30 100644
--- a/arch/arc/configs/nsim_hs_defconfig
+++ b/arch/arc/configs/nsim_hs_defconfig
@@ -59,4 +59,6 @@ CONFIG_TMPFS=y
CONFIG_NFS_FS=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
# CONFIG_DEBUG_PREEMPT is not set
diff --git a/arch/arc/configs/nsim_hs_smp_defconfig b/arch/arc/configs/nsim_hs_smp_defconfig
index 59f221f..10c5e5e 100644
--- a/arch/arc/configs/nsim_hs_smp_defconfig
+++ b/arch/arc/configs/nsim_hs_smp_defconfig
@@ -58,3 +58,5 @@ CONFIG_TMPFS=y
CONFIG_NFS_FS=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig
index 42bafa5..973ce41 100644
--- a/arch/arc/configs/nsimosci_defconfig
+++ b/arch/arc/configs/nsimosci_defconfig
@@ -71,3 +71,5 @@ CONFIG_TMPFS=y
CONFIG_NFS_FS=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
diff --git a/arch/arc/configs/nsimosci_hs_defconfig b/arch/arc/configs/nsimosci_hs_defconfig
index 4bb60c1..c0b99d7 100644
--- a/arch/arc/configs/nsimosci_hs_defconfig
+++ b/arch/arc/configs/nsimosci_hs_defconfig
@@ -70,3 +70,6 @@ CONFIG_TMPFS=y
CONFIG_NFS_FS=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
diff --git a/arch/arc/configs/nsimosci_hs_smp_defconfig b/arch/arc/configs/nsimosci_hs_smp_defconfig
index 7e88f4c..4012585 100644
--- a/arch/arc/configs/nsimosci_hs_smp_defconfig
+++ b/arch/arc/configs/nsimosci_hs_smp_defconfig
@@ -84,3 +84,6 @@ CONFIG_NFS_FS=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FTRACE=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
diff --git a/arch/arc/configs/tb10x_defconfig b/arch/arc/configs/tb10x_defconfig
index 4c51183..e8a96eb 100644
--- a/arch/arc/configs/tb10x_defconfig
+++ b/arch/arc/configs/tb10x_defconfig
@@ -104,6 +104,7 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
CONFIG_SCHEDSTATS=y
CONFIG_TIMER_STATS=y
# CONFIG_CRYPTO_HW is not set
--
2.5.5
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] ARC: [*defconfigs] Enable hung tasks detection
2016-07-21 14:52 [PATCH] ARC: [*defconfigs] Enable hung tasks detection Eugeniy Paltsev
@ 2016-07-21 16:17 ` Vineet Gupta
2016-07-21 17:04 ` Eugeniy Paltsev
0 siblings, 1 reply; 3+ messages in thread
From: Vineet Gupta @ 2016-07-21 16:17 UTC (permalink / raw)
To: Eugeniy Paltsev, linux-snps-arc
Cc: linux-kernel, Christian Ruppert, Noam Camus, Vineet Gupta,
Alexey Brodkin, Zakharov Vlad
On 07/21/2016 07:52 AM, Eugeniy Paltsev wrote:
> Enable the kernel to detect "hung tasks",
> which are bugs that cause the task to be stuck in
> uninterruptible "D" state indefinitiley.
spellos above
> Note we're setting HUNG_TASK_TIMEOUT to 10 seconds instead of
> default 120 to shorten time required for detection of hung task,
> as it set in axs101, axs103 and axs103_smp boards defconfigs.
In some of the actual hang scenarios (on FPGA boards atleast) I was debugging, the
hung task seemed redundant actually as I was getting RCU stall msgs as well. Do
you not see something similar.
> Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
>
> Cc: Christian Ruppert <christian.ruppert@alitech.com>
> Cc: Noam Camus <noamca@mellanox.com>
> Cc: Vineet Gupta <vgupta@synopsys.com>
> Cc: Alexey Brodkin <abrodkin@synopsys.com>
> Cc: Zakharov Vlad <vzakhar@synopsys.com>
> ---
> arch/arc/configs/nps_defconfig | 2 ++
> arch/arc/configs/nsim_700_defconfig | 2 ++
> arch/arc/configs/nsim_hs_defconfig | 2 ++
> arch/arc/configs/nsim_hs_smp_defconfig | 2 ++
> arch/arc/configs/nsimosci_defconfig | 2 ++
> arch/arc/configs/nsimosci_hs_defconfig | 3 +++
> arch/arc/configs/nsimosci_hs_smp_defconfig | 3 +++
> arch/arc/configs/tb10x_defconfig | 1 +
> 8 files changed, 17 insertions(+)
>
> diff --git a/arch/arc/configs/nps_defconfig b/arch/arc/configs/nps_defconfig
> index ede625c..39ccacd 100644
> --- a/arch/arc/configs/nps_defconfig
> +++ b/arch/arc/configs/nps_defconfig
> @@ -81,4 +81,6 @@ CONFIG_DEBUG_INFO=y
> # CONFIG_ENABLE_MUST_CHECK is not set
> CONFIG_MAGIC_SYSRQ=y
> CONFIG_DEBUG_MEMORY_INIT=y
> +CONFIG_DETECT_HUNG_TASK=y
> +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
> CONFIG_ENABLE_DEFAULT_TRACERS=y
> diff --git a/arch/arc/configs/nsim_700_defconfig b/arch/arc/configs/nsim_700_defconfig
> index 7314f53..78c3070 100644
> --- a/arch/arc/configs/nsim_700_defconfig
> +++ b/arch/arc/configs/nsim_700_defconfig
> @@ -61,4 +61,6 @@ CONFIG_TMPFS=y
> CONFIG_NFS_FS=y
> # CONFIG_ENABLE_WARN_DEPRECATED is not set
> # CONFIG_ENABLE_MUST_CHECK is not set
> +CONFIG_DETECT_HUNG_TASK=y
> +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
> # CONFIG_DEBUG_PREEMPT is not set
> diff --git a/arch/arc/configs/nsim_hs_defconfig b/arch/arc/configs/nsim_hs_defconfig
> index a99dc7a..c6a0a30 100644
> --- a/arch/arc/configs/nsim_hs_defconfig
> +++ b/arch/arc/configs/nsim_hs_defconfig
> @@ -59,4 +59,6 @@ CONFIG_TMPFS=y
> CONFIG_NFS_FS=y
> # CONFIG_ENABLE_WARN_DEPRECATED is not set
> # CONFIG_ENABLE_MUST_CHECK is not set
> +CONFIG_DETECT_HUNG_TASK=y
> +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
> # CONFIG_DEBUG_PREEMPT is not set
> diff --git a/arch/arc/configs/nsim_hs_smp_defconfig b/arch/arc/configs/nsim_hs_smp_defconfig
> index 59f221f..10c5e5e 100644
> --- a/arch/arc/configs/nsim_hs_smp_defconfig
> +++ b/arch/arc/configs/nsim_hs_smp_defconfig
> @@ -58,3 +58,5 @@ CONFIG_TMPFS=y
> CONFIG_NFS_FS=y
> # CONFIG_ENABLE_WARN_DEPRECATED is not set
> # CONFIG_ENABLE_MUST_CHECK is not set
> +CONFIG_DETECT_HUNG_TASK=y
> +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
> diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig
> index 42bafa5..973ce41 100644
> --- a/arch/arc/configs/nsimosci_defconfig
> +++ b/arch/arc/configs/nsimosci_defconfig
> @@ -71,3 +71,5 @@ CONFIG_TMPFS=y
> CONFIG_NFS_FS=y
> # CONFIG_ENABLE_WARN_DEPRECATED is not set
> # CONFIG_ENABLE_MUST_CHECK is not set
> +CONFIG_DETECT_HUNG_TASK=y
> +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
> diff --git a/arch/arc/configs/nsimosci_hs_defconfig b/arch/arc/configs/nsimosci_hs_defconfig
> index 4bb60c1..c0b99d7 100644
> --- a/arch/arc/configs/nsimosci_hs_defconfig
> +++ b/arch/arc/configs/nsimosci_hs_defconfig
> @@ -70,3 +70,6 @@ CONFIG_TMPFS=y
> CONFIG_NFS_FS=y
> # CONFIG_ENABLE_WARN_DEPRECATED is not set
> # CONFIG_ENABLE_MUST_CHECK is not set
> +CONFIG_DEBUG_KERNEL=y
> +CONFIG_DETECT_HUNG_TASK=y
> +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
> diff --git a/arch/arc/configs/nsimosci_hs_smp_defconfig b/arch/arc/configs/nsimosci_hs_smp_defconfig
> index 7e88f4c..4012585 100644
> --- a/arch/arc/configs/nsimosci_hs_smp_defconfig
> +++ b/arch/arc/configs/nsimosci_hs_smp_defconfig
> @@ -84,3 +84,6 @@ CONFIG_NFS_FS=y
> # CONFIG_ENABLE_WARN_DEPRECATED is not set
> # CONFIG_ENABLE_MUST_CHECK is not set
> CONFIG_FTRACE=y
> +CONFIG_DEBUG_KERNEL=y
> +CONFIG_DETECT_HUNG_TASK=y
> +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
> diff --git a/arch/arc/configs/tb10x_defconfig b/arch/arc/configs/tb10x_defconfig
> index 4c51183..e8a96eb 100644
> --- a/arch/arc/configs/tb10x_defconfig
> +++ b/arch/arc/configs/tb10x_defconfig
> @@ -104,6 +104,7 @@ CONFIG_MAGIC_SYSRQ=y
> CONFIG_DEBUG_MEMORY_INIT=y
> CONFIG_DEBUG_STACKOVERFLOW=y
> CONFIG_DETECT_HUNG_TASK=y
> +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
> CONFIG_SCHEDSTATS=y
> CONFIG_TIMER_STATS=y
> # CONFIG_CRYPTO_HW is not set
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] ARC: [*defconfigs] Enable hung tasks detection
2016-07-21 16:17 ` Vineet Gupta
@ 2016-07-21 17:04 ` Eugeniy Paltsev
0 siblings, 0 replies; 3+ messages in thread
From: Eugeniy Paltsev @ 2016-07-21 17:04 UTC (permalink / raw)
To: Vineet Gupta, linux-snps-arc@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, Vineet.Gupta1@synopsys.com,
Alexey.Brodkin@synopsys.com, christian.ruppert@alitech.com,
noamca@mellanox.com, Vladislav.Zakharov@synopsys.com
Hi,
Not every time. For example, last time I debug mmap3 LTP's test, which
stuck in "D" state, I didn't recieve any messages until I enabled this
option. This happends on nsim 700.
On Thu, 2016-07-21 at 09:17 -0700, Vineet Gupta wrote:
> On 07/21/2016 07:52 AM, Eugeniy Paltsev wrote:
> >
> > Enable the kernel to detect "hung tasks",
> > which are bugs that cause the task to be stuck in
> > uninterruptible "D" state indefinitiley.
> spellos above
>
> >
> > Note we're setting HUNG_TASK_TIMEOUT to 10 seconds instead of
> > default 120 to shorten time required for detection of hung task,
> > as it set in axs101, axs103 and axs103_smp boards defconfigs.
> In some of the actual hang scenarios (on FPGA boards atleast) I was
> debugging, the
> hung task seemed redundant actually as I was getting RCU stall msgs
> as well. Do
> you not see something similar.
>
>
> >
> > Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
> >
> > Cc: Christian Ruppert <christian.ruppert@alitech.com>
> > Cc: Noam Camus <noamca@mellanox.com>
> > Cc: Vineet Gupta <vgupta@synopsys.com>
> > Cc: Alexey Brodkin <abrodkin@synopsys.com>
> > Cc: Zakharov Vlad <vzakhar@synopsys.com>
> > ---
> > arch/arc/configs/nps_defconfig | 2 ++
> > arch/arc/configs/nsim_700_defconfig | 2 ++
> > arch/arc/configs/nsim_hs_defconfig | 2 ++
> > arch/arc/configs/nsim_hs_smp_defconfig | 2 ++
> > arch/arc/configs/nsimosci_defconfig | 2 ++
> > arch/arc/configs/nsimosci_hs_defconfig | 3 +++
> > arch/arc/configs/nsimosci_hs_smp_defconfig | 3 +++
> > arch/arc/configs/tb10x_defconfig | 1 +
> > 8 files changed, 17 insertions(+)
> >
> > diff --git a/arch/arc/configs/nps_defconfig
> > b/arch/arc/configs/nps_defconfig
> > index ede625c..39ccacd 100644
> > --- a/arch/arc/configs/nps_defconfig
> > +++ b/arch/arc/configs/nps_defconfig
> > @@ -81,4 +81,6 @@ CONFIG_DEBUG_INFO=y
> > # CONFIG_ENABLE_MUST_CHECK is not set
> > CONFIG_MAGIC_SYSRQ=y
> > CONFIG_DEBUG_MEMORY_INIT=y
> > +CONFIG_DETECT_HUNG_TASK=y
> > +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
> > CONFIG_ENABLE_DEFAULT_TRACERS=y
> > diff --git a/arch/arc/configs/nsim_700_defconfig
> > b/arch/arc/configs/nsim_700_defconfig
> > index 7314f53..78c3070 100644
> > --- a/arch/arc/configs/nsim_700_defconfig
> > +++ b/arch/arc/configs/nsim_700_defconfig
> > @@ -61,4 +61,6 @@ CONFIG_TMPFS=y
> > CONFIG_NFS_FS=y
> > # CONFIG_ENABLE_WARN_DEPRECATED is not set
> > # CONFIG_ENABLE_MUST_CHECK is not set
> > +CONFIG_DETECT_HUNG_TASK=y
> > +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
> > # CONFIG_DEBUG_PREEMPT is not set
> > diff --git a/arch/arc/configs/nsim_hs_defconfig
> > b/arch/arc/configs/nsim_hs_defconfig
> > index a99dc7a..c6a0a30 100644
> > --- a/arch/arc/configs/nsim_hs_defconfig
> > +++ b/arch/arc/configs/nsim_hs_defconfig
> > @@ -59,4 +59,6 @@ CONFIG_TMPFS=y
> > CONFIG_NFS_FS=y
> > # CONFIG_ENABLE_WARN_DEPRECATED is not set
> > # CONFIG_ENABLE_MUST_CHECK is not set
> > +CONFIG_DETECT_HUNG_TASK=y
> > +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
> > # CONFIG_DEBUG_PREEMPT is not set
> > diff --git a/arch/arc/configs/nsim_hs_smp_defconfig
> > b/arch/arc/configs/nsim_hs_smp_defconfig
> > index 59f221f..10c5e5e 100644
> > --- a/arch/arc/configs/nsim_hs_smp_defconfig
> > +++ b/arch/arc/configs/nsim_hs_smp_defconfig
> > @@ -58,3 +58,5 @@ CONFIG_TMPFS=y
> > CONFIG_NFS_FS=y
> > # CONFIG_ENABLE_WARN_DEPRECATED is not set
> > # CONFIG_ENABLE_MUST_CHECK is not set
> > +CONFIG_DETECT_HUNG_TASK=y
> > +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
> > diff --git a/arch/arc/configs/nsimosci_defconfig
> > b/arch/arc/configs/nsimosci_defconfig
> > index 42bafa5..973ce41 100644
> > --- a/arch/arc/configs/nsimosci_defconfig
> > +++ b/arch/arc/configs/nsimosci_defconfig
> > @@ -71,3 +71,5 @@ CONFIG_TMPFS=y
> > CONFIG_NFS_FS=y
> > # CONFIG_ENABLE_WARN_DEPRECATED is not set
> > # CONFIG_ENABLE_MUST_CHECK is not set
> > +CONFIG_DETECT_HUNG_TASK=y
> > +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
> > diff --git a/arch/arc/configs/nsimosci_hs_defconfig
> > b/arch/arc/configs/nsimosci_hs_defconfig
> > index 4bb60c1..c0b99d7 100644
> > --- a/arch/arc/configs/nsimosci_hs_defconfig
> > +++ b/arch/arc/configs/nsimosci_hs_defconfig
> > @@ -70,3 +70,6 @@ CONFIG_TMPFS=y
> > CONFIG_NFS_FS=y
> > # CONFIG_ENABLE_WARN_DEPRECATED is not set
> > # CONFIG_ENABLE_MUST_CHECK is not set
> > +CONFIG_DEBUG_KERNEL=y
> > +CONFIG_DETECT_HUNG_TASK=y
> > +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
> > diff --git a/arch/arc/configs/nsimosci_hs_smp_defconfig
> > b/arch/arc/configs/nsimosci_hs_smp_defconfig
> > index 7e88f4c..4012585 100644
> > --- a/arch/arc/configs/nsimosci_hs_smp_defconfig
> > +++ b/arch/arc/configs/nsimosci_hs_smp_defconfig
> > @@ -84,3 +84,6 @@ CONFIG_NFS_FS=y
> > # CONFIG_ENABLE_WARN_DEPRECATED is not set
> > # CONFIG_ENABLE_MUST_CHECK is not set
> > CONFIG_FTRACE=y
> > +CONFIG_DEBUG_KERNEL=y
> > +CONFIG_DETECT_HUNG_TASK=y
> > +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
> > diff --git a/arch/arc/configs/tb10x_defconfig
> > b/arch/arc/configs/tb10x_defconfig
> > index 4c51183..e8a96eb 100644
> > --- a/arch/arc/configs/tb10x_defconfig
> > +++ b/arch/arc/configs/tb10x_defconfig
> > @@ -104,6 +104,7 @@ CONFIG_MAGIC_SYSRQ=y
> > CONFIG_DEBUG_MEMORY_INIT=y
> > CONFIG_DEBUG_STACKOVERFLOW=y
> > CONFIG_DETECT_HUNG_TASK=y
> > +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
> > CONFIG_SCHEDSTATS=y
> > CONFIG_TIMER_STATS=y
> > # CONFIG_CRYPTO_HW is not set
> >
^ permalink raw reply [flat|nested] 3+ messages in thread
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2016-07-21 14:52 [PATCH] ARC: [*defconfigs] Enable hung tasks detection Eugeniy Paltsev
2016-07-21 16:17 ` Vineet Gupta
2016-07-21 17:04 ` Eugeniy Paltsev
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