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From: Changbin Du <changbin.du@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	linux-kernel@vger.kernel.org, Changbin Du <changbin.du@gmail.com>
Subject: [PATCH 6/8] kconfig/hacking: Move SCHED_STACK_END_CHECK after DEBUG_STACK_USAGE
Date: Sun,  8 Sep 2019 09:27:58 +0800	[thread overview]
Message-ID: <20190908012800.12979-7-changbin.du@gmail.com> (raw)
In-Reply-To: <20190908012800.12979-1-changbin.du@gmail.com>

They are both memory debug options to debug kernel stack issues.

Signed-off-by: Changbin Du <changbin.du@gmail.com>
---
 lib/Kconfig.debug | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 99c6dbd64ce7..458d2a4435a4 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -651,6 +651,18 @@ config DEBUG_STACK_USAGE
 
 	  This option will slow down process creation somewhat.
 
+config SCHED_STACK_END_CHECK
+	bool "Detect stack corruption on calls to schedule()"
+	depends on DEBUG_KERNEL
+	default n
+	help
+	  This option checks for a stack overrun on calls to schedule().
+	  If the stack end location is found to be over written always panic as
+	  the content of the corrupted region can no longer be trusted.
+	  This is to ensure no erroneous behaviour occurs which could result in
+	  data corruption or a sporadic crash at a later stage once the region
+	  is examined. The runtime overhead introduced is minimal.
+
 config DEBUG_VM
 	bool "Debug VM"
 	depends on DEBUG_KERNEL
@@ -1004,18 +1016,6 @@ config SCHEDSTATS
 	  application, you can say N to avoid the very slight overhead
 	  this adds.
 
-config SCHED_STACK_END_CHECK
-	bool "Detect stack corruption on calls to schedule()"
-	depends on DEBUG_KERNEL
-	default n
-	help
-	  This option checks for a stack overrun on calls to schedule().
-	  If the stack end location is found to be over written always panic as
-	  the content of the corrupted region can no longer be trusted.
-	  This is to ensure no erroneous behaviour occurs which could result in
-	  data corruption or a sporadic crash at a later stage once the region
-	  is examined. The runtime overhead introduced is minimal.
-
 config DEBUG_TIMEKEEPING
 	bool "Enable extra timekeeping sanity checking"
 	help
-- 
2.20.1


  parent reply	other threads:[~2019-09-08  1:28 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-08  1:27 [PATCH 0/8] kconfig/hacking: make 'kernel hacking' menu better structured Changbin Du
2019-09-08  1:27 ` [PATCH 1/8] kconfig/hacking: Group sysrq/kgdb/ubsan into 'Generic Kernel Debugging Instruments' Changbin Du
2019-09-08  1:27 ` [PATCH 2/8] kconfig/hacking: Create submenu for arch special debugging options Changbin Du
2019-09-08  1:27 ` [PATCH 3/8] kconfig/hacking: Group kernel data structures debugging together Changbin Du
2019-09-08  1:27 ` [PATCH 4/8] kconfig/hacking: Move kernel testing and coverage options to same submenu Changbin Du
2019-09-08  1:27 ` [PATCH 5/8] kconfig/hacking: Move Oops into 'Lockups and Hangs' Changbin Du
2019-09-08  1:27 ` Changbin Du [this message]
2019-09-08  1:27 ` [PATCH 7/8] kconfig/hacking: Create a submenu for scheduler debugging options Changbin Du
2019-09-08  1:28 ` [PATCH 8/8] kconfig/hacking: Move DEBUG_BUGVERBOSE to 'printk and dmesg options' Changbin Du
2019-09-08  1:30 ` [PATCH 0/8] kconfig/hacking: make 'kernel hacking' menu better structured Changbin Du
2019-09-09  0:44 ` Randy Dunlap
2019-09-09 14:10   ` Changbin Du

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