diff options
Diffstat (limited to 'lib/Kconfig.debug')
| -rw-r--r-- | lib/Kconfig.debug | 49 |
1 files changed, 41 insertions, 8 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index b01e547d4d04..7446097f72bd 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -13,7 +13,22 @@ config PRINTK_TIME be included, not that the timestamp is recorded. The behavior is also controlled by the kernel command line - parameter printk.time=1. See Documentation/kernel-parameters.txt + parameter printk.time=1. See Documentation/admin-guide/kernel-parameters.rst + +config CONSOLE_LOGLEVEL_DEFAULT + int "Default console loglevel (1-15)" + range 1 15 + default "7" + help + Default loglevel to determine what will be printed on the console. + + Setting a default here is equivalent to passing in loglevel=<x> in + the kernel bootargs. loglevel=<x> continues to override whatever + value is specified here as well. + + Note: This does not affect the log level of un-prefixed prink() + usage in the kernel. That is controlled by the MESSAGE_LOGLEVEL_DEFAULT + option. config MESSAGE_LOGLEVEL_DEFAULT int "Default message log level (1-7)" @@ -26,6 +41,10 @@ config MESSAGE_LOGLEVEL_DEFAULT that are auditing their logs closely may want to set it to a lower priority. + Note: This does not affect what message level gets printed on the console + by default. To change that, use loglevel=<x> in the kernel bootargs, + or pick a different CONSOLE_LOGLEVEL_DEFAULT configuration value. + config BOOT_PRINTK_DELAY bool "Delay each boot printk message by N milliseconds" depends on DEBUG_KERNEL && PRINTK && GENERIC_CALIBRATE_DELAY @@ -175,8 +194,8 @@ config GDB_SCRIPTS build directory. If you load vmlinux into gdb, the helper scripts will be automatically imported by gdb as well, and additional functions are available to analyze a Linux kernel - instance. See Documentation/gdb-kernel-debugging.txt for further - details. + instance. See Documentation/dev-tools/gdb-kernel-debugging.rst + for further details. config ENABLE_WARN_DEPRECATED bool "Enable __deprecated logic" @@ -523,7 +542,7 @@ config DEBUG_KMEMLEAK difference being that the orphan objects are not freed but only shown in /sys/kernel/debug/kmemleak. Enabling this feature will introduce an overhead to memory - allocations. See Documentation/kmemleak.txt for more + allocations. See Documentation/dev-tools/kmemleak.rst for more details. Enabling DEBUG_SLAB or SLUB_DEBUG may increase the chances @@ -720,7 +739,7 @@ config KCOV different machines and across reboots. If you need stable PC values, disable RANDOMIZE_BASE. - For more details, see Documentation/kcov.txt. + For more details, see Documentation/dev-tools/kcov.rst. config KCOV_INSTRUMENT_ALL bool "Instrument all code by default" @@ -1085,6 +1104,9 @@ config PROVE_LOCKING For more details, see Documentation/locking/lockdep-design.txt. +config PROVE_LOCKING_SMALL + bool + config LOCKDEP bool depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT @@ -1215,7 +1237,7 @@ config DEBUG_BUGVERBOSE config DEBUG_LIST bool "Debug linked list manipulation" - depends on DEBUG_KERNEL + depends on DEBUG_KERNEL || BUG_ON_DATA_CORRUPTION help Enable this to turn on extended checks in the linked-list walking routines. @@ -1431,7 +1453,8 @@ config RCU_TRACE select TRACE_CLOCK help This option provides tracing in RCU which presents stats - in debugfs for debugging RCU implementation. + in debugfs for debugging RCU implementation. It also enables + additional tracepoints for ftrace-style event tracing. Say Y here if you want to enable RCU tracing Say N if you are unsure. @@ -1961,6 +1984,16 @@ config TEST_STATIC_KEYS If unsure, 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. + source "samples/Kconfig" source "lib/Kconfig.kgdb" @@ -1972,7 +2005,7 @@ config ARCH_HAS_DEVMEM_IS_ALLOWED config STRICT_DEVMEM bool "Filter access to /dev/mem" - depends on MMU + depends on MMU && DEVMEM depends on ARCH_HAS_DEVMEM_IS_ALLOWED default y if TILE || PPC ---help--- |