Lines Matching +full:fault +full:- +full:inject
1 # SPDX-License-Identifier: GPL-2.0-only
19 parameter printk.time=1. See Documentation/admin-guide/kernel-parameters.rst
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"
237 def_bool $(as-instr,.uleb128 .Lexpr_end4 - .Lexpr_start3\n.Lexpr_start3:\n.Lexpr_end4:)
245 This adds debug symbols to the kernel and modules (gcc -g), and
288 5.0+ accepts the -gdwarf-5 flag but only had partial support for some
292 15-18% savings in resulting image and debug info section sizes as
330 depends on $(cc-option,-gz=zlib)
331 depends on $(ld-option,--compress-debug-sections=zlib)
336 Users of dpkg-deb via scripts/package/builddeb may find an increase in
345 depends on $(cc-option,-gz=zstd)
346 depends on $(ld-option,--compress-debug-sections=zstd)
357 depends on $(cc-option,-gsplit-dwarf)
358 # RISC-V linker relaxation + -gsplit-dwarf has issues with LLVM and GCC
360 # https://github.com/llvm/llvm-project/issues/56642
400 Support for the --lang_exclude flag which makes pahole exclude
414 bool "Allow loading modules with non-matching BTF type info"
430 instance. See Documentation/dev-tools/gdb-kernel-debugging.rst
451 bool "Strip assembler-generated symbols during link"
454 Strip internal assembler-generated symbols during a link (symbols
472 This option will install uapi headers (headers exported to user-space)
475 user-space program samples. It is also needed by some features such
493 - Add the option -fno-inline-functions-called-once to gcc commands.
494 When inlining a function annotated with __init in a non-init
501 bool "Make section mismatch errors non-fatal"
543 bool "Compile-time stack metadata validation"
548 Validate frame pointer rules at compile-time. This helps ensure that
564 Selecting this option will pass "-Map=vmlinux.map" to ld
571 bool "Force weak per-cpu definitions"
600 keys are documented in <file:Documentation/admin-guide/sysrq.rst>.
610 to a bitmask as described in Documentation/admin-guide/sysrq.rst.
651 debugfs=[on,no-mount,off]. The restrictions apply for API access
670 Access is off. Clients get -PERM when trying to create nodes in
672 Client can then back-off or continue without debugfs access.
712 properly. This can make kmalloc/kfree-intensive workloads
746 int "debug_objects bootup default value (0-1)"
766 task has ever had available in the sysrq-T and sysrq-P debug output.
795 Enable this to turn on extended checks in the virtual-memory system
820 bool "Debug VM red-black trees"
823 Enable VM red-black tree debugging information and extra validations.
828 bool "Debug page-flags operations"
878 on the mminit_loglevel= command-line option.
886 This option provides the ability to inject artificial errors to
888 debugfs interface under /sys/kernel/debug/notifier-error-inject/memory
893 Example: Inject memory hotplug offline error (-12 == -ENOMEM)
895 # cd /sys/kernel/debug/notifier-error-inject/memory
896 # echo -12 > actions/MEM_GOING_OFFLINE/error
901 be called memory-notifier-error-inject.
933 mechanism for non-highmem pages and on non-highmem systems.
957 These kinds of bugs usually occur when call-chains in the
1039 high-availability systems that have uptime guarantees and
1078 # Note that arch-specific variants are always preferred.
1093 an arch-specific hardlockup detector or if resources needed
1116 The arch-specific implementation of the hardlockup detector will
1166 to determine when a task has become non-responsive and should
1187 high-availability systems that have uptime guarantees and
1211 bool "Report per-cpu work items which hog CPU for too long"
1214 Say Y here to enable reporting of concurrency-managed per-cpu work
1218 them from stalling other per-cpu work items. Occassional
1232 Also it could generate series of lockups with cooling-down periods.
1287 if kernel code uses it in a preemption-unsafe way. Also, the kernel
1328 participant CPUs, tasks and irq-contexts would be needed
1341 and rwsems - in which case all dependencies between these
1346 For more details, see Documentation/locking/lockdep-design.rst.
1349 bool "Enable raw_spinlock - spinlock nesting checks"
1395 bool "Spinlock and rw-lock debugging: basic checks"
1420 injecting additional -EDEADLK wound/backoff cases. Together with
1446 memory-freeing routines (kfree(), kmem_cache_free(), free_pages(),
1499 … Try increasing this value if you hit "lockdep bfs error:-1" warning due to __cq_enqueue() failure.
1522 bool "Locking API boot-time self-tests"
1525 Say Y here if you want the kernel to run a short self-test during
1526 bootup. The self-test checks whether common types of locking bugs
1541 Say Y here if you want kernel locking-primitive torture tests
1692 Enable this to turn on extended checks in the linked-list walking
1705 Enable this to turn on extended checks in the priority-ordered
1706 linked-list (plist) walking routines. This checks the entire
1715 Enable this to turn on checks on scatter-gather tables. This can
1744 bool "Force round-robin CPU selection for unbound work items"
1753 round-robin CPU selection to flush out usages which depend on the
1822 in charge of the OHCI-1394 controllers should be used instead.
1824 See Documentation/core-api/debugging-via-ohci1394.rst for more information.
1856 io-memory regardless of whether a driver is actively using that
1861 userspace access to *idle* io-memory ranges (see /proc/iomem) This
1882 This option provides the ability to inject artificial errors to
1893 This option provides the ability to inject artificial errors to
1895 interface /sys/kernel/debug/notifier-error-inject/pm
1900 Example: Inject PM suspend error (-12 = -ENOMEM)
1902 # cd /sys/kernel/debug/notifier-error-inject/pm/
1903 # echo -12 > actions/PM_SUSPEND_PREPARE/error
1908 be called pm-notifier-error-inject.
1916 This option provides the ability to inject artificial errors to
1919 /sys/kernel/debug/notifier-error-inject/OF-reconfig/
1925 be called of-reconfig-notifier-error-inject.
1933 This option provides the ability to inject artificial errors to
1935 interface /sys/kernel/debug/notifier-error-inject/netdev
1940 Example: Inject netdevice mtu change error (-22 = -EINVAL)
1942 # cd /sys/kernel/debug/notifier-error-inject/netdev
1943 # echo -22 > actions/NETDEV_CHANGEMTU/error
1948 be called netdev-notifier-error-inject.
1953 bool "Fault-injections of functions"
1956 Add fault injections into various functions that are annotated with
1963 bool "Fault-injection framework"
1966 Provide fault-injection framework.
1967 For more details, see Documentation/fault-injection/.
1970 bool "Fault-injection capability for kmalloc"
1974 Provide fault-injection capability for kmalloc.
1977 bool "Fault-injection capability for alloc_pages()"
1980 Provide fault-injection capability for alloc_pages().
1983 bool "Fault injection capability for usercopy functions"
1986 Provides fault-injection capability to inject failures
1990 bool "Fault-injection capability for disk IO"
1993 Provide fault-injection capability for disk IO.
1996 bool "Fault-injection capability for faking disk interrupts"
1999 Provide fault-injection capability on end IO handling. This
2007 bool "Fault-injection capability for futexes"
2011 Provide fault-injection capability for futexes.
2014 bool "Debugfs entries for fault-injection capabilities"
2017 Enable configuration of fault-injection capabilities via debugfs.
2020 bool "Fault-injection capability for functions"
2023 Provide function-based fault-injection capability.
2030 bool "Fault-injection capability for MMC IO"
2033 Provide fault-injection capability for MMC IO.
2040 bool "Fault-injection capability for SunRPC"
2043 Provide fault-injection capability for SunRPC and
2047 bool "Configfs interface for fault-injection capabilities"
2051 This option allows configfs-based drivers to dynamically configure
2052 fault-injection via configfs. Each parameter for driver-specific
2053 fault-injection can be made visible as a configfs attribute in a
2058 bool "stacktrace filter for fault-injection capabilities"
2064 Provide stacktrace filter for fault-injection capabilities
2074 def_bool $(cc-option,-fsanitize-coverage=trace-pc)
2088 for coverage-guided fuzzing (randomized testing).
2094 For more details, see Documentation/dev-tools/kcov.rst.
2099 depends on $(cc-option,-fsanitize-coverage=trace-cmp)
2122 KCOV uses preallocated per-cpu areas to collect coverage from
2142 the kernel command line (when built-in), or from userspace (when
2143 built-in or modular.
2178 Documentation/fault-injection/provoke-crashes.rst
2188 to the KUnit documentation in Documentation/dev-tools/kunit/.
2214 tristate "Array-based sort test" if !KUNIT_ALL_TESTS
2218 This option enables the self-test function of 'sort()' at boot,
2296 tristate "Red-Black tree test"
2303 tristate "Reed-Solomon library test"
2309 This option enables the self-test function of rslib at boot,
2325 Enable this option to build test module which validates per-cpu
2331 tristate "Perform an atomic64_t self-test"
2343 This is a one-shot self test that permutes through the
2345 N-disk array. Recovery is performed with the asynchronous
2438 no compiler warnings from C=1 sparse checker or -Wextra
2506 actual firmware-using device. The contents can be rechecked by
2534 to the KUnit documentation in Documentation/dev-tools/kunit/.
2551 to the KUnit documentation in Documentation/dev-tools/kunit/.
2569 to the KUnit documentation in Documentation/dev-tools/kunit/.
2571 This is intended to help people writing architecture-specific
2582 to the KUnit documentation in Documentation/dev-tools/kunit/.
2594 to the KUnit documentation in Documentation/dev-tools/kunit/.
2599 tristate "KUnit Test for Kernel Linked-list structures" if !KUNIT_ALL_TESTS
2613 to the KUnit documentation in Documentation/dev-tools/kunit/.
2626 in Documentation/dev-tools/kunit/.
2638 to the KUnit documentation in Documentation/dev-tools/kunit/.
2650 to the KUnit documentation in Documentation/dev-tools/kunit/.
2662 to the KUnit documentation in Documentation/dev-tools/kunit/.
2674 to the KUnit documentation in Documentation/dev-tools/kunit/.
2685 to the KUnit documentation in Documentation/dev-tools/kunit/.
2696 to the KUnit documentation in Documentation/dev-tools/kunit/.
2720 to the KUnit documentation in Documentation/dev-tools/kunit/.
2733 to the KUnit documentation in Documentation/dev-tools/kunit/.
2742 Test if the kernel is zero-initializing stack variables and
2794 This is intended to help people writing architecture-specific
2846 tools/testing/selftests/kmod/kmod.sh --help
2855 virt_to_phys() done against the non-linear part of the
2880 make -C tools/testing/selftests TARGETS=livepatch run_tests
2884 tools/testing/selftests/livepatch/test-callbacks.sh
2885 tools/testing/selftests/livepatch/test-livepatch.sh
2886 tools/testing/selftests/livepatch/test-shadow-vars.sh
2901 Test if the kernel is zero-initializing heap and page allocations.
2915 Doing so will allow you to run tools/testing/selftest/vm/hmm-tests.
2934 for self-testing floating point control register setting in
2965 memtest=0, mean disabled; -- default
2974 bool "Microsoft Hyper-V driver testing"
2978 Select this option to enable Hyper-V vmbus testing.
2988 Enables rustc's `-Cdebug-assertions` codegen option.
3004 Enables rustc's `-Coverflow-checks` codegen option.
3007 overflow. When overflow-checks are enabled, a Rust panic will occur
3015 bool "Allow unoptimized build-time assertions"
3039 please refer to the KUnit documentation in Documentation/dev-tools/kunit/.