Lines Matching +full:fails +full:- +full:without +full:- +full:test +full:- +full:cd
1 # SPDX-License-Identifier: GPL-2.0-only
19 parameter printk.time=1. See Documentation/admin-guide/kernel-parameters.rst
31 interpret without knowing where these lines (or sometimes individual
50 int "Default console loglevel (1-15)"
60 Note: This does not affect the log level of un-prefixed printk()
65 int "quiet console loglevel (1-15)"
76 int "Default message log level (1-7)"
82 This was hard-coded to KERN_WARNING since at least 2.6.10 but folks
118 enabled/disabled based on various levels of scope - per source file,
158 nullarbor:~ # echo -n 'file svcsock.c line 1603 +p' >
162 nullarbor:~ # echo -n 'file svcsock.c +p' >
166 nullarbor:~ # echo -n 'module nfsd +p' >
170 nullarbor:~ # echo -n 'func svc_process +p' >
174 nullarbor:~ # echo -n 'func svc_process -p' >
177 See Documentation/admin-guide/dynamic-debug-howto.rst for additional
207 debugging but costs about 70-100K of memory.
225 menu "Compile-time checks and compiler options"
235 # older binutils ports do not support when utilizing RISC-V style linker
238 def_bool $(as-instr,.uleb128 .Lexpr_end4 - .Lexpr_start3\n.Lexpr_start3:\n.Lexpr_end4:)
246 This adds debug symbols to the kernel and modules (gcc -g), and
277 if using clang without clang's integrated assembler, and gdb 7.0+.
290 5.0+ accepts the -gdwarf-5 flag but only had partial support for some
294 15-18% savings in resulting image and debug info section sizes as
332 depends on $(cc-option,-gz=zlib)
333 depends on $(ld-option,--compress-debug-sections=zlib)
338 Users of dpkg-deb via scripts/package/builddeb may find an increase in
347 depends on $(cc-option,-gz=zstd)
348 depends on $(ld-option,--compress-debug-sections=zstd)
359 depends on $(cc-option,-gsplit-dwarf)
360 # RISC-V linker relaxation + -gsplit-dwarf has issues with LLVM and GCC
362 # https://github.com/llvm/llvm-project/issues/56642
406 Support for the --lang_exclude flag which makes pahole exclude
420 bool "Allow loading modules with non-matching BTF type info"
423 For modules whose split BTF does not match vmlinux, load without
436 instance. See Documentation/process/debugging/gdb-kernel-debugging.rst
457 bool "Strip assembler-generated symbols during link"
460 Strip internal assembler-generated symbols during a link (symbols
478 This option will install uapi headers (headers exported to user-space)
481 user-space program samples. It is also needed by some features such
499 - Add the option -fno-inline-functions-called-once to gcc commands.
500 When inlining a function annotated with __init in a non-init
507 bool "Make section mismatch errors non-fatal"
549 bool "Compile-time stack metadata validation"
554 Validate frame pointer rules at compile-time. This helps ensure that
570 Selecting this option will pass "-Map=vmlinux.map" to ld
592 bool "Force weak per-cpu definitions"
621 keys are documented in <file:Documentation/admin-guide/sysrq.rst>.
631 to a bitmask as described in Documentation/admin-guide/sysrq.rst.
672 debugfs=[on,no-mount,off]. The restrictions apply for API access
691 Access is off. Clients get -PERM when trying to create nodes in
693 Client can then back-off or continue without debugfs access.
733 properly. This can make kmalloc/kfree-intensive workloads
767 int "debug_objects bootup default value (0-1)"
787 task has ever had available in the sysrq-T and sysrq-P debug output.
818 Enable this to turn on extended checks in the virtual-memory system
843 bool "Debug VM red-black trees"
846 Enable VM red-black tree debugging information and extra validations.
851 bool "Debug page-flags operations"
864 This option provides a debug method which can be used to test
901 on the mminit_loglevel= command-line option.
911 debugfs interface under /sys/kernel/debug/notifier-error-inject/memory
916 Example: Inject memory hotplug offline error (-12 == -ENOMEM)
918 # cd /sys/kernel/debug/notifier-error-inject/memory
919 # echo -12 > actions/MEM_GOING_OFFLINE/error
924 be called memory-notifier-error-inject.
956 mechanism for non-highmem pages and on non-highmem systems.
980 These kinds of bugs usually occur when call-chains in the
1080 mode for more than 20 seconds, without giving other tasks a
1105 sysctl), without giving other tasks a chance to run.
1110 high-availability systems that have uptime guarantees and
1144 for more than 10 seconds, without letting other interrupts have a
1149 # Note that arch-specific variants are always preferred.
1164 an arch-specific hardlockup detector or if resources needed
1187 The arch-specific implementation of the hardlockup detector will
1237 to determine when a task has become non-responsive and should
1258 high-availability systems that have uptime guarantees and
1275 bool "Report per-cpu work items which hog CPU for too long"
1278 Say Y here to enable reporting of concurrency-managed per-cpu work
1282 them from stalling other per-cpu work items. Occassional
1288 tristate "Test module to generate lockups"
1296 Also it could generate series of lockups with cooling-down periods.
1338 if kernel code uses it in a preemption-unsafe way. Also, the kernel
1379 participant CPUs, tasks and irq-contexts would be needed
1392 and rwsems - in which case all dependencies between these
1397 For more details, see Documentation/locking/lockdep-design.rst.
1400 bool "Enable raw_spinlock - spinlock nesting checks" if !ARCH_SUPPORTS_RT
1438 bool "Spinlock and rw-lock debugging: basic checks"
1463 injecting additional -EDEADLK wound/backoff cases. Together with
1465 will test all possible w/w mutex interface abuse with the
1489 memory-freeing routines (kfree(), kmem_cache_free(), free_pages(),
1542 … Try increasing this value if you hit "lockdep bfs error:-1" warning due to __cq_enqueue() failure.
1565 bool "Locking API boot-time self-tests"
1568 Say Y here if you want the kernel to run a short self-test during
1569 bootup. The self-test checks whether common types of locking bugs
1584 Say Y here if you want kernel locking-primitive torture tests
1596 with this test harness.
1652 Enables debug prints when a CPU fails to respond to a given
1736 Enable this to turn on extended checks in the linked-list walking
1749 Enable this to turn on extended checks in the priority-ordered
1750 linked-list (plist) walking routines. This checks the entire
1759 Enable this to turn on checks on scatter-gather tables. This can
1797 bool "Force round-robin CPU selection for unbound work items"
1802 without explicit CPU specified are put on the local CPU. This
1806 round-robin CPU selection to flush out usages which depend on the
1875 in charge of the OHCI-1394 controllers should be used instead.
1877 See Documentation/core-api/debugging-via-ohci1394.rst for more information.
1909 io-memory regardless of whether a driver is actively using that
1914 userspace access to *idle* io-memory ranges (see /proc/iomem) This
1936 specified notifier chain callbacks. It is useful to test the error
1948 interface /sys/kernel/debug/notifier-error-inject/pm
1953 Example: Inject PM suspend error (-12 = -ENOMEM)
1955 # cd /sys/kernel/debug/notifier-error-inject/pm/
1956 # echo -12 > actions/PM_SUSPEND_PREPARE/error
1961 be called pm-notifier-error-inject.
1972 /sys/kernel/debug/notifier-error-inject/OF-reconfig/
1978 be called of-reconfig-notifier-error-inject.
1988 interface /sys/kernel/debug/notifier-error-inject/netdev
1993 Example: Inject netdevice mtu change error (-22 = -EINVAL)
1995 # cd /sys/kernel/debug/notifier-error-inject/netdev
1996 # echo -22 > actions/NETDEV_CHANGEMTU/error
2001 be called netdev-notifier-error-inject.
2006 bool "Fault-injections of functions"
2011 value of these functions. This is useful to test error paths of code.
2016 bool "Fault-injection framework"
2019 Provide fault-injection framework.
2020 For more details, see Documentation/fault-injection/.
2023 bool "Fault-injection capability for kmalloc"
2026 Provide fault-injection capability for kmalloc.
2029 bool "Fault-injection capability for alloc_pages()"
2032 Provide fault-injection capability for alloc_pages().
2038 Provides fault-injection capability to inject failures
2042 bool "Fault-injection capability for disk IO"
2045 Provide fault-injection capability for disk IO.
2048 bool "Fault-injection capability for faking disk interrupts"
2051 Provide fault-injection capability on end IO handling. This
2059 bool "Fault-injection capability for futexes"
2063 Provide fault-injection capability for futexes.
2066 bool "Debugfs entries for fault-injection capabilities"
2069 Enable configuration of fault-injection capabilities via debugfs.
2072 bool "Fault-injection capability for functions"
2075 Provide function-based fault-injection capability.
2078 an error value and have to handle it. This is useful to test the
2082 bool "Fault-injection capability for MMC IO"
2085 Provide fault-injection capability for MMC IO.
2087 useful to test the error handling in the mmc block device
2088 and to test how the mmc host driver handles retries from
2092 bool "Fault-injection capability for SunRPC"
2095 Provide fault-injection capability for SunRPC and
2099 bool "Fault-injection capability forcing skb to reallocate"
2102 Provide fault-injection capability that forces the skb to be
2106 Documentation/fault-injection/fault-injection.rst
2109 bool "Configfs interface for fault-injection capabilities"
2113 This option allows configfs-based drivers to dynamically configure
2114 fault-injection via configfs. Each parameter for driver-specific
2115 fault-injection can be made visible as a configfs attribute in a
2120 bool "stacktrace filter for fault-injection capabilities"
2126 Provide stacktrace filter for fault-injection capabilities
2136 def_bool $(cc-option,-fsanitize-coverage=trace-pc)
2150 for coverage-guided fuzzing (randomized testing).
2152 For more details, see Documentation/dev-tools/kcov.rst.
2157 depends on $(cc-option,-fsanitize-coverage=trace-cmp)
2180 KCOV uses preallocated per-cpu areas to collect coverage from
2189 On test failure, causes the kernel to panic. Recommended to be
2199 tristate "Dhrystone benchmark test"
2201 Enable this to include the Dhrystone 2.1 benchmark. This test
2208 the kernel command line (when built-in), or from userspace (when
2209 built-in or modular).
2227 If the number of iterations is <= 0, the test will devise a suitable
2228 number of iterations (test runs for at least 2s) automatically.
2234 tristate "Linux Kernel Dump Test Tool Module"
2244 Documentation/fault-injection/provoke-crashes.rst
2247 tristate "KUnit test for cpumask" if !KUNIT_ALL_TESTS
2254 to the KUnit documentation in Documentation/dev-tools/kunit/.
2259 tristate "Linked list sorting test" if !KUNIT_ALL_TESTS
2263 Enable this to turn on 'list_sort()' function test. This test is
2270 tristate "Min heap test"
2273 Enable this to turn on min heap function tests. This test is
2280 tristate "Array-based sort test" if !KUNIT_ALL_TESTS
2284 This option enables the self-test function of 'sort()' at boot,
2290 tristate "64bit/32bit division and modulo test"
2293 Enable this to turn on 'do_div()' function test. This test is
2300 tristate "mul_u64_u64_div_u64() test"
2303 Enable this to turn on 'mul_u64_u64_div_u64()' function test.
2304 This test is executed only once during system boot (so affects
2310 tristate "Test iov_iter operation" if !KUNIT_ALL_TESTS
2316 (iov_iter). This test is executed only once during system boot (so
2336 bool "Self test for fprobe"
2348 tristate "Self test for the backtrace code"
2351 This option provides a kernel module that can be used to test
2356 Note that if you want to also test saved backtraces, you will
2362 tristate "Self test for reference tracker"
2372 tristate "Red-Black tree test"
2379 tristate "Reed-Solomon library test"
2385 This option enables the self-test function of rslib at boot,
2391 tristate "Interval tree test"
2398 tristate "Per cpu operations test"
2401 Enable this option to build test module which validates per-cpu
2407 tristate "Perform an atomic64_t self-test"
2409 Enable this option to test the atomic64_t functions at boot or
2415 tristate "Self test for hardware accelerated raid6 recovery"
2419 This is a one-shot self test that permutes through the
2421 N-disk array. Recovery is performed with the asynchronous
2428 tristate "Test functions located in the hexdump module at runtime"
2431 tristate "KUnit test string functions at runtime" if !KUNIT_ALL_TESTS
2436 tristate "KUnit test string helpers at runtime" if !KUNIT_ALL_TESTS
2441 tristate "Test kstrto*() family of functions at runtime"
2444 tristate "Test printf() family of functions at runtime"
2447 tristate "Test scanf() family of functions at runtime"
2450 tristate "Test bitmap_*() family of functions at runtime"
2452 Enable this option to test the bitmap functions at boot.
2457 tristate "Test functions located in the uuid module at runtime"
2460 tristate "Test the XArray code at runtime"
2463 tristate "Test the Maple Tree code at runtime or module load"
2465 Enable this option to test the maple tree code functions at boot, or
2474 Enable this option to test the rhashtable functions at boot.
2482 tristate "Basic misc minor Kunit test" if !KUNIT_ALL_TESTS
2486 Kunit test for the misc minor.
2496 Enable this option to test priority array manager on boot
2505 Enable this option to test the irq timings code on boot.
2510 tristate "Test module loading with 'hello world' module"
2523 tristate "Test module for compilation of bitops operations"
2528 no compiler warnings from C=1 sparse checker or -Wextra
2535 tristate "Test module for stress/performance analysis of vmalloc allocator"
2548 tristate "Test BPF filter functionality"
2551 This builds the "test_bpf" module that runs various test vectors
2555 the interpreter code. It also enables test stubs for eBPF maps and
2561 tristate "Test blackhole netdev functionality"
2570 tristate "Test find_bit functions"
2578 tristate "Test firmware loading via userspace interface"
2583 control the triggering of firmware loading without needing an
2584 actual firmware-using device. The contents can be rechecked by
2590 tristate "sysctl test driver"
2593 This builds the "test_sysctl" module. This driver enables to test the
2594 proc sysctl interfaces available to drivers safely without affecting
2600 tristate "KUnit test bitfield functions at runtime" if !KUNIT_ALL_TESTS
2604 Enable this option to test the bitfield functions at boot.
2608 running the KUnit test harness, and not intended for inclusion into a
2612 to the KUnit documentation in Documentation/dev-tools/kunit/.
2617 tristate "KUnit test checksum functions at runtime" if !KUNIT_ALL_TESTS
2621 Enable this option to test the checksum functions at boot.
2625 running the KUnit test harness, and not intended for inclusion into a
2629 to the KUnit documentation in Documentation/dev-tools/kunit/.
2634 tristate "KUnit test util_macros.h functions at runtime" if !KUNIT_ALL_TESTS
2638 Enable this option to test the util_macros.h function at boot.
2642 running the KUnit test harness, and not intended for inclusion into a
2646 to the KUnit documentation in Documentation/dev-tools/kunit/.
2651 tristate "KUnit Test for integer hash functions" if !KUNIT_ALL_TESTS
2655 Enable this option to test the kernel's string (<linux/stringhash.h>), and
2660 running the KUnit test harness, and not intended for inclusion into a
2664 to the KUnit documentation in Documentation/dev-tools/kunit/.
2666 This is intended to help people writing architecture-specific
2670 tristate "KUnit test for resource API" if !KUNIT_ALL_TESTS
2675 This builds the resource API unit test.
2678 to the KUnit documentation in Documentation/dev-tools/kunit/.
2683 tristate "KUnit test for sysctl" if !KUNIT_ALL_TESTS
2687 This builds the proc sysctl unit test, which runs on boot.
2690 to the KUnit documentation in Documentation/dev-tools/kunit/.
2695 tristate "KUnit Test for Kernel Linked-list structures" if !KUNIT_ALL_TESTS
2699 This builds the linked list KUnit test suite.
2705 running the KUnit test harness, and not intended for inclusion into a
2709 to the KUnit documentation in Documentation/dev-tools/kunit/.
2714 tristate "KUnit Test for Kernel Hashtable structures" if !KUNIT_ALL_TESTS
2718 This builds the hashtable KUnit test suite.
2722 in Documentation/dev-tools/kunit/.
2727 tristate "KUnit test for linear_ranges"
2731 This builds the linear_ranges unit test, which runs on boot.
2734 to the KUnit documentation in Documentation/dev-tools/kunit/.
2739 tristate "KUnit test for cmdline API" if !KUNIT_ALL_TESTS
2743 This builds the cmdline API unit test.
2746 to the KUnit documentation in Documentation/dev-tools/kunit/.
2751 tristate "KUnit test for bits.h" if !KUNIT_ALL_TESTS
2755 This builds the bits unit test.
2758 to the KUnit documentation in Documentation/dev-tools/kunit/.
2763 tristate "KUnit test for SLUB cache error detection" if !KUNIT_ALL_TESTS
2767 This builds SLUB allocator unit test.
2770 to the KUnit documentation in Documentation/dev-tools/kunit/.
2775 tristate "KUnit test for rational.c" if !KUNIT_ALL_TESTS
2779 This builds the rational math unit test.
2781 to the KUnit documentation in Documentation/dev-tools/kunit/.
2786 tristate "Test memcpy(), memmove(), and memset() functions at runtime" if !KUNIT_ALL_TESTS
2792 to the KUnit documentation in Documentation/dev-tools/kunit/.
2797 tristate "Test is_signed_type() macro" if !KUNIT_ALL_TESTS
2804 to the KUnit documentation in Documentation/dev-tools/kunit/.
2809 tristate "Test check_*_overflow() functions at runtime" if !KUNIT_ALL_TESTS
2817 to the KUnit documentation in Documentation/dev-tools/kunit/.
2822 tristate "Test level of stack variable initialization" if !KUNIT_ALL_TESTS
2826 Test if the kernel is zero-initializing stack variables and
2833 tristate "Test fortified str*() and mem*() function internals at runtime" if !KUNIT_ALL_TESTS
2842 bool "Test hw_breakpoint constraints accounting" if !KUNIT_ALL_TESTS
2862 This is intended to help people writing architecture-specific
2869 Include benchmarks in the KUnit test suite for the CRC functions.
2876 Enable this option to test the kernel's siphash (<linux/siphash.h>) hash
2879 This is intended to help people writing architecture-specific
2883 tristate "KUnit Test for user/kernel boundary protections"
2892 tristate "udelay test driver"
2900 tristate "Test static keys"
2903 Test the static key interfaces.
2908 tristate "Test DYNAMIC_DEBUG"
2928 Test the kernel's module loading mechanism: kmod. kmod implements
2930 This test provides a series of tests against kmod.
2940 tools/testing/selftests/kmod/kmod.sh --help
2951 tristate "module kallsyms find_symbol() test"
2960 This allows us to stress test find_symbol() through the kallsyms
2964 We have four test modules:
2971 We stress test find_symbol() through two means:
2987 Since it has 10 * KALLSYMS_NUMSYMS it means we can first test
2988 just loading B without C. The amount of time it takes to load C Vs
2992 then the first test would be doing more and increasing just the
3001 stress test find_symbol() with thousands of symbols. At the same
3002 time this is also useful to test building modules with thousands of
3028 prompt "Kallsym test range"
3055 int "test kallsyms number of symbols"
3069 int "test kallsyms scale factor"
3080 tristate "Test CONFIG_DEBUG_VIRTUAL feature"
3083 Test the kernel's ability to detect incorrect calls to
3084 virt_to_phys() done against the non-linear part of the
3090 tristate "Test memcat_p() helper function"
3092 Test the memcat_p() helper for correctly merging two
3102 Enable this option to test object aggregation manager on boot
3106 tristate "Test heap/page initialization"
3108 Test if the kernel is zero-initializing heap and page allocations.
3109 This can be useful to test init_on_alloc and init_on_free features.
3114 tristate "Test HMM (Heterogeneous Memory Management)"
3121 Say M here if you want to build the HMM test module.
3122 Doing so will allow you to run tools/testing/selftest/vm/hmm-tests.
3127 tristate "Test freeing pages"
3129 Test that a memory leak does not occur due to a race between
3136 tristate "Test floating point operations in kernel space"
3141 for self-testing floating point control register setting in
3147 tristate "Test clocksource watchdog in kernel space"
3151 a test of the clocksource watchdog. This module may be loaded
3159 tristate "Test module for correctness and stress of objpool"
3170 tristate "Integer exponentiation (int_pow) test" if !KUNIT_ALL_TESTS
3174 This option enables the KUnit test suite for the int_pow function,
3175 which performs integer exponentiation. The test suite is designed to
3186 tristate "Integer square root test" if !KUNIT_ALL_TESTS
3190 This option enables the KUnit test suite for the int_sqrt() function,
3191 which performs square root calculation. The test suite checks
3214 memtest=0, mean disabled; -- default
3215 memtest=1, mean do 1 test pattern;
3217 memtest=17, mean do 17 test patterns.
3223 bool "Microsoft Hyper-V driver testing"
3227 Select this option to enable Hyper-V vmbus testing.
3237 Enables rustc's `-Cdebug-assertions` codegen option.
3253 Enables rustc's `-Coverflow-checks` codegen option.
3256 overflow. When overflow-checks are enabled, a Rust panic will occur
3264 bool "Allow unoptimized build-time assertions"
3275 the check fails).
3288 please refer to the KUnit documentation in Documentation/dev-tools/kunit/.