diff options
Diffstat (limited to 'lib/Kconfig.debug')
| -rw-r--r-- | lib/Kconfig.debug | 159 |
1 files changed, 124 insertions, 35 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 06344d986eb..7a638aa3545 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -119,7 +119,7 @@ menu "Compile-time checks and compiler options" config DEBUG_INFO bool "Compile the kernel with debug info" - depends on DEBUG_KERNEL + depends on DEBUG_KERNEL && !COMPILE_TEST help If you say Y here the resulting kernel image will include debugging info resulting in a larger kernel image. @@ -312,6 +312,15 @@ config MAGIC_SYSRQ keys are documented in <file:Documentation/sysrq.txt>. Don't say Y unless you really know what this hack does. +config MAGIC_SYSRQ_DEFAULT_ENABLE + hex "Enable magic SysRq key functions by default" + depends on MAGIC_SYSRQ + default 0x1 + help + Specifies which SysRq key functions are enabled by default. + This may be set to 1 or 0 to enable or disable them all, or + to a bitmask as described in Documentation/sysrq.txt. + config DEBUG_KERNEL bool "Kernel debugging" help @@ -492,12 +501,21 @@ config DEBUG_VM If unsure, say N. +config DEBUG_VM_VMACACHE + bool "Debug VMA caching" + depends on DEBUG_VM + help + Enable this to turn on VMA caching debug information. Doing so + can cause significant overhead, so only enable it in non-production + environments. + + If unsure, say N. + config DEBUG_VM_RB bool "Debug VM red-black trees" depends on DEBUG_VM help - Enable this to turn on more extended checks in the virtual-memory - system that may impact performance. + Enable VM red-black tree debugging information and extra validations. If unsure, say N. @@ -567,8 +585,8 @@ config DEBUG_HIGHMEM bool "Highmem debugging" depends on DEBUG_KERNEL && HIGHMEM help - This options enables addition error checking for high memory systems. - Disable for production systems. + This option enables additional error checking for high memory + systems. Disable for production systems. config HAVE_DEBUG_STACKOVERFLOW bool @@ -752,6 +770,15 @@ config PANIC_ON_OOPS_VALUE default 0 if !PANIC_ON_OOPS default 1 if PANIC_ON_OOPS +config PANIC_TIMEOUT + int "panic timeout" + default 0 + help + Set the timeout value (in seconds) until a reboot occurs when the + the kernel panics. If n = 0, then we wait forever. A timeout + value n > 0 will wait n seconds before rebooting, while a timeout + value n < 0 will reboot immediately. + config SCHED_DEBUG bool "Collect scheduler debugging info" depends on DEBUG_KERNEL && PROC_FS @@ -806,11 +833,6 @@ config DEBUG_RT_MUTEXES This allows rt mutex semantics violations and rt mutex related deadlocks (lockups) to be detected and reported automatically. -config DEBUG_PI_LIST - bool - default y - depends on DEBUG_RT_MUTEXES - config RT_MUTEX_TESTER bool "Built-in scriptable tester for rt-mutexes" depends on DEBUG_KERNEL && RT_MUTEXES @@ -908,7 +930,7 @@ config LOCKDEP bool depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT select STACKTRACE - select FRAME_POINTER if !MIPS && !PPC && !ARM_UNWIND && !S390 && !MICROBLAZE && !ARC + select FRAME_POINTER if !MIPS && !PPC && !ARM_UNWIND && !S390 && !MICROBLAZE && !ARC && !SCORE select KALLSYMS select KALLSYMS_ALL @@ -962,6 +984,21 @@ config DEBUG_LOCKING_API_SELFTESTS The following locking APIs are covered: spinlocks, rwlocks, mutexes and rwsems. +config LOCK_TORTURE_TEST + tristate "torture tests for locking" + depends on DEBUG_KERNEL + select TORTURE_TEST + default n + help + This option provides a kernel module that runs torture tests + on kernel locking primitives. The kernel module may be built + after the fact on the running kernel to be tested, if desired. + + Say Y here if you want kernel locking-primitive torture tests + to be built into the kernel. + Say M if you want these torture tests to build as a module. + Say N if you are unsure. + endmenu # lock debugging config TRACE_IRQFLAGS @@ -983,7 +1020,7 @@ config DEBUG_KOBJECT config DEBUG_KOBJECT_RELEASE bool "kobject release debugging" - depends on DEBUG_KERNEL + depends on DEBUG_OBJECTS_TIMERS help kobjects are reference counted objects. This means that their last reference count put is not predictable, and the kobject can @@ -1012,22 +1049,22 @@ 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. -config DEBUG_WRITECOUNT - bool "Debug filesystem writers count" +config DEBUG_LIST + bool "Debug linked list manipulation" depends on DEBUG_KERNEL help - Enable this to catch wrong use of the writers count in struct - vfsmount. This will increase the size of each file struct by - 32 bits. + Enable this to turn on extended checks in the linked-list + walking routines. If unsure, say N. -config DEBUG_LIST - bool "Debug linked list manipulation" +config DEBUG_PI_LIST + bool "Debug priority linked list manipulation" depends on DEBUG_KERNEL help - Enable this to turn on extended checks in the linked-list - walking routines. + Enable this to turn on extended checks in the priority-ordered + linked-list (plist) walking routines. This checks the entire + list multiple times during each manipulation. If unsure, say N. @@ -1123,9 +1160,14 @@ config SPARSE_RCU_POINTER Say N if you are unsure. +config TORTURE_TEST + tristate + default n + config RCU_TORTURE_TEST tristate "torture tests for RCU" depends on DEBUG_KERNEL + select TORTURE_TEST default n help This option provides a kernel module that runs torture tests @@ -1366,7 +1408,7 @@ config FAULT_INJECTION_STACKTRACE_FILTER depends on FAULT_INJECTION_DEBUG_FS && STACKTRACE_SUPPORT depends on !X86_64 select STACKTRACE - select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND && !ARC + select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND && !ARC && !SCORE help Provide stacktrace filter for fault-injection capabilities @@ -1469,9 +1511,19 @@ config RBTREE_TEST config INTERVAL_TREE_TEST tristate "Interval tree test" depends on m && DEBUG_KERNEL + select INTERVAL_TREE help A benchmark measuring the performance of the interval tree library +config PERCPU_TEST + tristate "Per cpu operations test" + depends on m && DEBUG_KERNEL + help + Enable this option to build test module which validates per-cpu + operations. + + If unsure, say N. + config ATOMIC64_SELFTEST bool "Perform an atomic64_t self-test at boot" help @@ -1529,17 +1581,6 @@ config PROVIDE_OHCI1394_DMA_INIT See Documentation/debugging-via-ohci1394.txt for more information. -config FIREWIRE_OHCI_REMOTE_DMA - bool "Remote debugging over FireWire with firewire-ohci" - depends on FIREWIRE_OHCI - help - This option lets you use the FireWire bus for remote debugging - with help of the firewire-ohci driver. It enables unfiltered - remote DMA in firewire-ohci. - See Documentation/debugging-via-ohci1394.txt for more information. - - If unsure, say N. - config BUILD_DOCSRC bool "Build targets in Documentation/ tree" depends on HEADERS_CHECK @@ -1557,8 +1598,56 @@ config DMA_API_DEBUG With this option you will be able to detect common bugs in device drivers like double-freeing of DMA mappings or freeing mappings that were never allocated. - This option causes a performance degredation. Use only if you want - to debug device drivers. If unsure, say N. + + This also attempts to catch cases where a page owned by DMA is + accessed by the cpu in a way that could cause data corruption. For + example, this enables cow_user_page() to check that the source page is + not undergoing DMA. + + This option causes a performance degradation. Use only if you want to + debug device drivers and dma interactions. + + If unsure, say N. + +config TEST_MODULE + tristate "Test module loading with 'hello world' module" + default n + depends on m + help + This builds the "test_module" module that emits "Hello, world" + on printk when loaded. It is designed to be used for basic + evaluation of the module loading subsystem (for example when + validating module verification). It lacks any extra dependencies, + and will not normally be loaded by the system unless explicitly + requested by name. + + If unsure, say N. + +config TEST_USER_COPY + tristate "Test user/kernel boundary protections" + default n + depends on m + help + This builds the "test_user_copy" module that runs sanity checks + on the copy_to/from_user infrastructure, making sure basic + user/kernel boundary testing is working. If it fails to load, + a regression has been detected in the user/kernel memory boundary + protections. + + If unsure, say N. + +config TEST_BPF + tristate "Test BPF filter functionality" + default n + depends on m && NET + help + This builds the "test_bpf" module that runs various test vectors + against the BPF interpreter or BPF JIT compiler depending on the + current setting. This is in particular useful for BPF JIT compiler + development, but also to run regression tests against changes in + the interpreter code. + + If unsure, say N. source "samples/Kconfig" |