The patch titled
Subject: kernel-hacking: group kernel data structures debugging together
has been added to the -mm tree. Its filename is
hacking-group-kernel-data-structures-debugging-together.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/hacking-group-kernel-data-structures-debugging-together.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/hacking-group-kernel-data-structures-debugging-together.patch
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------------------------------------------------------
From: Changbin Du <changbin.du@xxxxxxxxx>
Subject: kernel-hacking: group kernel data structures debugging together
Group these similar runtime data structures verification options together.
Link: http://lkml.kernel.org/r/20190909144453.3520-4-changbin.du@xxxxxxxxx
Signed-off-by: Changbin Du <changbin.du@xxxxxxxxx>
Acked-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Tested-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/Kconfig.debug | 24 ++++++++++++++----------
1 file changed, 14 insertions(+), 10 deletions(-)
--- a/lib/Kconfig.debug~hacking-group-kernel-data-structures-debugging-together
+++ a/lib/Kconfig.debug
@@ -1365,6 +1365,8 @@ config DEBUG_BUGVERBOSE
of the BUG call as well as the EIP and oops trace. This aids
debugging but costs about 70-100K of memory.
+menu "Debug kernel data structures"
+
config DEBUG_LIST
bool "Debug linked list manipulation"
depends on DEBUG_KERNEL || BUG_ON_DATA_CORRUPTION
@@ -1404,6 +1406,18 @@ config DEBUG_NOTIFIERS
This is a relatively cheap check but if you care about maximum
performance, say N.
+config BUG_ON_DATA_CORRUPTION
+ bool "Trigger a BUG when data corruption is detected"
+ select DEBUG_LIST
+ help
+ Select this option if the kernel should BUG when it encounters
+ data corruption in kernel memory structures when they get checked
+ for validity.
+
+ If unsure, say N.
+
+endmenu
+
config DEBUG_CREDENTIALS
bool "Debug credential management"
depends on DEBUG_KERNEL
@@ -2099,16 +2113,6 @@ config MEMTEST
memtest=17, mean do 17 test patterns.
If you are unsure how to answer this question, answer N.
-config BUG_ON_DATA_CORRUPTION
- bool "Trigger a BUG when data corruption is detected"
- select DEBUG_LIST
- help
- Select this option if the kernel should BUG when it encounters
- data corruption in kernel memory structures when they get checked
- for validity.
-
- If unsure, say N.
-
source "samples/Kconfig"
config ARCH_HAS_DEVMEM_IS_ALLOWED
_
Patches currently in -mm which might be from changbin.du@xxxxxxxxx are
hacking-group-sysrq-kgdb-ubsan-into-generic-kernel-debugging-instruments.patch
hacking-create-submenu-for-arch-special-debugging-options.patch
hacking-group-kernel-data-structures-debugging-together.patch
hacking-move-kernel-testing-and-coverage-options-to-same-submenu.patch
hacking-move-oops-into-lockups-and-hangs.patch
hacking-move-sched_stack_end_check-after-debug_stack_usage.patch
hacking-create-a-submenu-for-scheduler-debugging-options.patch
hacking-move-debug_bugverbose-to-printk-and-dmesg-options.patch
hacking-move-debug_fs-to-generic-kernel-debugging-instruments.patch
