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
39 int "Default console loglevel (1-15)"
49 Note: This does not affect the log level of un-prefixed printk()
54 int "quiet console loglevel (1-15)"
65 int "Default message log level (1-7)"
71 This was hard-coded to KERN_WARNING since at least 2.6.10 but folks
107 enabled/disabled based on various levels of scope - per source file,
147 nullarbor:~ # echo -n 'file svcsock.c line 1603 +p' >
151 nullarbor:~ # echo -n 'file svcsock.c +p' >
155 nullarbor:~ # echo -n 'module nfsd +p' >
159 nullarbor:~ # echo -n 'func svc_process +p' >
163 nullarbor:~ # echo -n 'func svc_process -p' >
166 See Documentation/admin-guide/dynamic-debug-howto.rst for additional
196 debugging but costs about 70-100K of memory.
200 menu "Compile-time checks and compiler options"
208 This adds debug symbols to the kernel and modules (gcc -g), and
231 depends on $(cc-option,-gz=zlib)
232 depends on $(ld-option,--compress-debug-sections=zlib)
237 Users of dpkg-deb via scripts/package/builddeb may find an increase in
246 depends on $(cc-option,-gsplit-dwarf)
261 depends on $(cc-option,-gdwarf-4)
284 instance. See Documentation/dev-tools/gdb-kernel-debugging.rst
312 bool "Strip assembler-generated symbols during link"
315 Strip internal assembler-generated symbols during a link (symbols
332 This option will install uapi headers (headers exported to user-space)
335 user-space program samples. It is also needed by some features such
352 - Add the option -fno-inline-functions-called-once to gcc commands.
353 When inlining a function annotated with __init in a non-init
360 bool "Make section mismatch errors non-fatal"
397 bool "Compile-time stack metadata validation"
401 Add compile-time checks to validate stack metadata, including frame
409 tools/objtool/Documentation/stack-validation.txt.
417 bool "Force weak per-cpu definitions"
446 keys are documented in <file:Documentation/admin-guide/sysrq.rst>.
456 to a bitmask as described in Documentation/admin-guide/sysrq.rst.
497 debugfs=[on,no-mount,off]. The restrictions apply for API access
516 Access is off. Clients get -PERM when trying to create nodes in
518 Client can then back-off or continue without debugfs access.
567 properly. This can make kmalloc/kfree-intensive workloads
601 int "debug_objects bootup default value (0-1)"
614 memory. This can make kmalloc/kfree-intensive workloads much slower.
627 "slub_debug=-".
640 Try running: slabinfo -DA
659 allocations. See Documentation/dev-tools/kmemleak.rst for more
682 tristate "Simple test for the kernel memory leak detector"
716 task has ever had available in the sysrq-T and sysrq-P debug output.
742 Enable this to turn on extended checks in the virtual-memory system
752 can cause significant overhead, so only enable it in non-production
758 bool "Debug VM red-black trees"
761 Enable VM red-black tree debugging information and extra validations.
766 bool "Debug page-flags operations"
779 This option provides a debug method which can be used to test
816 on the mminit_loglevel= command-line option.
826 debugfs interface under /sys/kernel/debug/notifier-error-inject/memory
831 Example: Inject memory hotplug offline error (-12 == -ENOMEM)
833 # cd /sys/kernel/debug/notifier-error-inject/memory
834 # echo -12 > actions/MEM_GOING_OFFLINE/error
839 be called memory-notifier-error-inject.
873 These kinds of bugs usually occur when call-chains in the
937 mode for more than 20 seconds, without giving other tasks a
948 sysctl), without giving other tasks a chance to run.
953 high-availability systems that have uptime guarantees and
991 for more than 10 seconds, without letting other interrupts have a
1034 to determine when a task has become non-responsive and should
1055 high-availability systems that have uptime guarantees and
1079 tristate "Test module to generate lockups"
1087 Also it could generate series of lockups with cooling-down periods.
1143 if kernel code uses it in a preemption-unsafe way. Also, the kernel
1180 participant CPUs, tasks and irq-contexts would be needed
1193 and rwsems - in which case all dependencies between these
1198 For more details, see Documentation/locking/lockdep-design.rst.
1201 bool "Enable raw_spinlock - spinlock nesting checks"
1247 bool "Spinlock and rw-lock debugging: basic checks"
1271 injecting additional -EDEADLK wound/backoff cases. Together with
1273 will test all possible w/w mutex interface abuse with the
1297 memory-freeing routines (kfree(), kmem_cache_free(), free_pages(),
1350 … Try increasing this value if you hit "lockdep bfs error:-1" warning due to __cq_enqueue() failure.
1372 bool "Locking API boot-time self-tests"
1375 Say Y here if you want the kernel to run a short self-test during
1376 bootup. The self-test checks whether common types of locking bugs
1391 Say Y here if you want kernel locking-primitive torture tests
1403 with this test harness.
1514 Enable this to turn on extended checks in the linked-list
1523 Enable this to turn on extended checks in the priority-ordered
1524 linked-list (plist) walking routines. This checks the entire
1533 Enable this to turn on checks on scatter-gather tables. This can
1579 bool "Force round-robin CPU selection for unbound work items"
1584 without explicit CPU specified are put on the local CPU. This
1588 round-robin CPU selection to flush out usages which depend on the
1606 may introduce non-contiguous block device numbers. This
1675 in charge of the OHCI-1394 controllers should be used instead.
1677 See Documentation/core-api/debugging-via-ohci1394.rst for more information.
1709 io-memory regardless of whether a driver is actively using that
1714 userspace access to *idle* io-memory ranges (see /proc/iomem) This
1736 specified notifier chain callbacks. It is useful to test the error
1748 interface /sys/kernel/debug/notifier-error-inject/pm
1753 Example: Inject PM suspend error (-12 = -ENOMEM)
1755 # cd /sys/kernel/debug/notifier-error-inject/pm/
1756 # echo -12 > actions/PM_SUSPEND_PREPARE/error
1761 be called pm-notifier-error-inject.
1772 /sys/kernel/debug/notifier-error-inject/OF-reconfig/
1778 be called of-reconfig-notifier-error-inject.
1788 interface /sys/kernel/debug/notifier-error-inject/netdev
1793 Example: Inject netdevice mtu change error (-22 = -EINVAL)
1795 # cd /sys/kernel/debug/notifier-error-inject/netdev
1796 # echo -22 > actions/NETDEV_CHANGEMTU/error
1801 be called netdev-notifier-error-inject.
1806 bool "Fault-injections of functions"
1811 value of theses functions. This is useful to test error paths of code.
1816 bool "Fault-injection framework"
1819 Provide fault-injection framework.
1820 For more details, see Documentation/fault-injection/.
1823 bool "Fault-injection capability for kmalloc"
1827 Provide fault-injection capability for kmalloc.
1830 bool "Fault-injection capability for alloc_pages()"
1833 Provide fault-injection capability for alloc_pages().
1839 Provides fault-injection capability to inject failures
1843 bool "Fault-injection capability for disk IO"
1846 Provide fault-injection capability for disk IO.
1849 bool "Fault-injection capability for faking disk interrupts"
1852 Provide fault-injection capability on end IO handling. This
1860 bool "Fault-injection capability for futexes"
1864 Provide fault-injection capability for futexes.
1867 bool "Debugfs entries for fault-injection capabilities"
1870 Enable configuration of fault-injection capabilities via debugfs.
1873 bool "Fault-injection capability for functions"
1876 Provide function-based fault-injection capability.
1879 an error value and have to handle it. This is useful to test the
1883 bool "Fault-injection capability for MMC IO"
1886 Provide fault-injection capability for MMC IO.
1888 useful to test the error handling in the mmc block device
1889 and to test how the mmc host driver handles retries from
1893 bool "stacktrace filter for fault-injection capabilities"
1899 Provide stacktrace filter for fault-injection capabilities
1909 def_bool $(cc-option,-fsanitize-coverage=trace-pc)
1920 for coverage-guided fuzzing (randomized testing).
1926 For more details, see Documentation/dev-tools/kcov.rst.
1931 depends on $(cc-option,-fsanitize-coverage=trace-cmp)
1954 KCOV uses preallocated per-cpu areas to collect coverage from
1965 tristate "Linux Kernel Dump Test Tool Module"
1975 Documentation/fault-injection/provoke-crashes.rst
1978 tristate "Linked list sorting test"
1981 Enable this to turn on 'list_sort()' function test. This test is
1988 tristate "Min heap test"
1991 Enable this to turn on min heap function tests. This test is
1998 tristate "Array-based sort test"
2001 This option enables the self-test function of 'sort()' at boot,
2018 tristate "Self test for the backtrace code"
2021 This option provides a kernel module that can be used to test
2026 Note that if you want to also test saved backtraces, you will
2032 tristate "Red-Black tree test"
2039 tristate "Reed-Solomon library test"
2045 This option enables the self-test function of rslib at boot,
2051 tristate "Interval tree test"
2058 tristate "Per cpu operations test"
2061 Enable this option to build test module which validates per-cpu
2067 tristate "Perform an atomic64_t self-test"
2069 Enable this option to test the atomic64_t functions at boot or
2075 tristate "Self test for hardware accelerated raid6 recovery"
2079 This is a one-shot self test that permutes through the
2081 N-disk array. Recovery is performed with the asynchronous
2088 tristate "Test functions located in the hexdump module at runtime"
2091 tristate "Test functions located in the string_helpers module at runtime"
2094 tristate "Test strscpy*() family of functions at runtime"
2097 tristate "Test kstrto*() family of functions at runtime"
2100 tristate "Test printf() family of functions at runtime"
2103 tristate "Test bitmap_*() family of functions at runtime"
2105 Enable this option to test the bitmap functions at boot.
2110 tristate "Test functions located in the uuid module at runtime"
2113 tristate "Test the XArray code at runtime"
2116 tristate "Test check_*_overflow() functions at runtime"
2121 Enable this option to test the rhashtable functions at boot.
2128 Enable this option to test the kernel's integer (<linux/hash.h>),
2132 This is intended to help people writing architecture-specific
2142 Enable this option to test priority array manager on boot
2151 Enable this option to test the irq timings code on boot.
2156 tristate "Test module loading with 'hello world' module"
2169 tristate "Test module for compilation of bitops operations"
2175 no compiler warnings from C=1 sparse checker or -Wextra
2182 tristate "Test module for stress/performance analysis of vmalloc allocator"
2195 tristate "Test user/kernel boundary protections"
2200 user/kernel boundary testing is working. If it fails to load,
2207 tristate "Test BPF filter functionality"
2210 This builds the "test_bpf" module that runs various test vectors
2214 the interpreter code. It also enables test stubs for eBPF maps and
2220 tristate "Test blackhole netdev functionality"
2229 tristate "Test find_bit functions"
2237 tristate "Test firmware loading via userspace interface"
2242 control the triggering of firmware loading without needing an
2243 actual firmware-using device. The contents can be rechecked by
2249 tristate "sysctl test driver"
2252 This builds the "test_sysctl" module. This driver enables to test the
2253 proc sysctl interfaces available to drivers safely without affecting
2259 tristate "KUnit test bitfield functions at runtime"
2262 Enable this option to test the bitfield functions at boot.
2266 running the KUnit test harness, and not intended for inclusion into a
2270 to the KUnit documentation in Documentation/dev-tools/kunit/.
2275 tristate "KUnit test for sysctl" if !KUNIT_ALL_TESTS
2279 This builds the proc sysctl unit test, which runs on boot.
2282 to the KUnit documentation in Documentation/dev-tools/kunit/.
2287 tristate "KUnit Test for Kernel Linked-list structures" if !KUNIT_ALL_TESTS
2291 This builds the linked list KUnit test suite.
2297 running the KUnit test harness, and not intended for inclusion into a
2301 to the KUnit documentation in Documentation/dev-tools/kunit/.
2306 tristate "KUnit test for linear_ranges"
2310 This builds the linear_ranges unit test, which runs on boot.
2313 to the KUnit documentation in Documentation/dev-tools/kunit/.
2318 tristate "KUnit test for bits.h"
2321 This builds the bits unit test.
2324 to the KUnit documentation in Documentation/dev-tools/kunit/.
2329 tristate "udelay test driver"
2337 tristate "Test static keys"
2340 Test the static key interfaces.
2354 Test the kernel's module loading mechanism: kmod. kmod implements
2356 This test provides a series of tests against kmod.
2366 tools/testing/selftests/kmod/kmod.sh --help
2371 tristate "Test CONFIG_DEBUG_VIRTUAL feature"
2374 Test the kernel's ability to detect incorrect calls to
2375 virt_to_phys() done against the non-linear part of the
2381 tristate "Test memcat_p() helper function"
2383 Test the memcat_p() helper for correctly merging two
2389 tristate "Test livepatching"
2395 Test kernel livepatching features for correctness. The tests will
2396 load test modules that will be livepatched in various scenarios.
2400 make -C tools/testing/selftests TARGETS=livepatch run_tests
2404 tools/testing/selftests/livepatch/test-callbacks.sh
2405 tools/testing/selftests/livepatch/test-livepatch.sh
2406 tools/testing/selftests/livepatch/test-shadow-vars.sh
2415 Enable this option to test object aggregation manager on boot
2420 tristate "Test level of stack variable initialization"
2422 Test if the kernel is zero-initializing stack variables and
2430 tristate "Test heap/page initialization"
2432 Test if the kernel is zero-initializing heap and page allocations.
2433 This can be useful to test init_on_alloc and init_on_free features.
2438 tristate "Test HMM (Heterogeneous Memory Management)"
2445 Say M here if you want to build the HMM test module.
2446 Doing so will allow you to run tools/testing/selftest/vm/hmm-tests.
2451 tristate "Test freeing pages"
2453 Test that a memory leak does not occur due to a race between
2460 tristate "Test floating point operations in kernel space"
2465 for self-testing floating point control register setting in
2477 memtest=0, mean disabled; -- default
2478 memtest=1, mean do 1 test pattern;
2480 memtest=17, mean do 17 test patterns.
2486 bool "Microsoft Hyper-V driver testing"
2490 Select this option to enable Hyper-V vmbus testing.