Lines Matching +full:debian +full:- +full:arm64 +full:- +full:release
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"
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
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 debian/rules 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"
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
477 This option will install uapi headers (headers exported to user-space)
480 user-space program samples. It is also needed by some features such
498 - Add the option -fno-inline-functions-called-once to gcc commands.
499 When inlining a function annotated with __init in a non-init
506 bool "Make section mismatch errors non-fatal"
516 depends on EXPERT && (X86_64 || ARM64 || PPC32 || PPC64 || ARC || RISCV || S390)
559 bool "Compile-time stack metadata validation"
564 Validate frame pointer rules at compile-time. This helps ensure that
580 Selecting this option will pass "-Map=vmlinux.map" to ld
602 bool "Force weak per-cpu definitions"
631 keys are documented in <file:Documentation/admin-guide/sysrq.rst>.
641 to a bitmask as described in Documentation/admin-guide/sysrq.rst.
682 debugfs=[on,no-mount,off]. The restrictions apply for API access
701 Access is off. Clients get -PERM when trying to create nodes in
703 Client can then back-off or continue without debugfs access.
743 properly. This can make kmalloc/kfree-intensive workloads
777 int "debug_objects bootup default value (0-1)"
797 task has ever had available in the sysrq-T and sysrq-P debug output.
837 Enable this to turn on extended checks in the virtual-memory system
862 bool "Debug VM red-black trees"
865 Enable VM red-black tree debugging information and extra validations.
870 bool "Debug page-flags operations"
920 on the mminit_loglevel= command-line option.
930 debugfs interface under /sys/kernel/debug/notifier-error-inject/memory
935 Example: Inject memory hotplug offline error (-12 == -ENOMEM)
937 # cd /sys/kernel/debug/notifier-error-inject/memory
938 # echo -12 > actions/MEM_GOING_OFFLINE/error
943 be called memory-notifier-error-inject.
975 mechanism for non-highmem pages and on non-highmem systems.
999 These kinds of bugs usually occur when call-chains in the
1129 high-availability systems that have uptime guarantees and
1168 # Note that arch-specific variants are always preferred.
1183 an arch-specific hardlockup detector or if resources needed
1206 The arch-specific implementation of the hardlockup detector will
1256 to determine when a task has become non-responsive and should
1277 high-availability systems that have uptime guarantees and
1305 bool "Report per-cpu work items which hog CPU for too long"
1308 Say Y here to enable reporting of concurrency-managed per-cpu work
1312 them from stalling other per-cpu work items. Occassional
1326 Also it could generate series of lockups with cooling-down periods.
1359 if kernel code uses it in a preemption-unsafe way. Also, the kernel
1400 participant CPUs, tasks and irq-contexts would be needed
1413 and rwsems - in which case all dependencies between these
1418 For more details, see Documentation/locking/lockdep-design.rst.
1421 bool "Enable raw_spinlock - spinlock nesting checks" if !ARCH_SUPPORTS_RT
1449 (CONFIG_LOCKDEP defines "acquire" and "release" events.)
1459 bool "Spinlock and rw-lock debugging: basic checks"
1484 injecting additional -EDEADLK wound/backoff cases. Together with
1510 memory-freeing routines (kfree(), kmem_cache_free(), free_pages(),
1563 … Try increasing this value if you hit "lockdep bfs error:-1" warning due to __cq_enqueue() failure.
1586 bool "Locking API boot-time self-tests"
1589 Say Y here if you want the kernel to run a short self-test during
1590 bootup. The self-test checks whether common types of locking bugs
1605 Say Y here if you want kernel locking-primitive torture tests
1729 bool "kobject release debugging"
1743 If you say Y here, the kernel will delay the release of kobjects
1745 kind of kobject release bug.
1757 Enable this to turn on extended checks in the linked-list walking
1770 Enable this to turn on extended checks in the priority-ordered
1771 linked-list (plist) walking routines. This checks the entire
1780 Enable this to turn on checks on scatter-gather tables. This can
1818 bool "Force round-robin CPU selection for unbound work items"
1827 round-robin CPU selection to flush out usages which depend on the
1896 in charge of the OHCI-1394 controllers should be used instead.
1898 See Documentation/core-api/debugging-via-ohci1394.rst for more information.
1909 default y if PPC || X86 || ARM64 || S390
1930 io-memory regardless of whether a driver is actively using that
1935 userspace access to *idle* io-memory ranges (see /proc/iomem) This
1969 interface /sys/kernel/debug/notifier-error-inject/pm
1974 Example: Inject PM suspend error (-12 = -ENOMEM)
1976 # cd /sys/kernel/debug/notifier-error-inject/pm/
1977 # echo -12 > actions/PM_SUSPEND_PREPARE/error
1982 be called pm-notifier-error-inject.
1993 /sys/kernel/debug/notifier-error-inject/OF-reconfig/
1999 be called of-reconfig-notifier-error-inject.
2009 interface /sys/kernel/debug/notifier-error-inject/netdev
2014 Example: Inject netdevice mtu change error (-22 = -EINVAL)
2016 # cd /sys/kernel/debug/notifier-error-inject/netdev
2017 # echo -22 > actions/NETDEV_CHANGEMTU/error
2022 be called netdev-notifier-error-inject.
2027 bool "Fault-injections of functions"
2037 bool "Fault-injection framework"
2040 Provide fault-injection framework.
2041 For more details, see Documentation/fault-injection/.
2044 bool "Fault-injection capability for kmalloc"
2047 Provide fault-injection capability for kmalloc.
2050 bool "Fault-injection capability for alloc_pages()"
2053 Provide fault-injection capability for alloc_pages().
2059 Provides fault-injection capability to inject failures
2063 bool "Fault-injection capability for disk IO"
2066 Provide fault-injection capability for disk IO.
2069 bool "Fault-injection capability for faking disk interrupts"
2072 Provide fault-injection capability on end IO handling. This
2080 bool "Fault-injection capability for futexes"
2084 Provide fault-injection capability for futexes.
2087 bool "Debugfs entries for fault-injection capabilities"
2090 Enable configuration of fault-injection capabilities via debugfs.
2093 bool "Fault-injection capability for functions"
2096 Provide function-based fault-injection capability.
2103 bool "Fault-injection capability for MMC IO"
2106 Provide fault-injection capability for MMC IO.
2113 bool "Fault-injection capability for SunRPC"
2116 Provide fault-injection capability for SunRPC and
2120 bool "Fault-injection capability forcing skb to reallocate"
2123 Provide fault-injection capability that forces the skb to be
2127 Documentation/fault-injection/fault-injection.rst
2130 bool "Configfs interface for fault-injection capabilities"
2134 This option allows configfs-based drivers to dynamically configure
2135 fault-injection via configfs. Each parameter for driver-specific
2136 fault-injection can be made visible as a configfs attribute in a
2141 bool "stacktrace filter for fault-injection capabilities"
2147 Provide stacktrace filter for fault-injection capabilities
2157 def_bool $(cc-option,-fsanitize-coverage=trace-pc)
2171 for coverage-guided fuzzing (randomized testing).
2173 For more details, see Documentation/dev-tools/kcov.rst.
2178 depends on $(cc-option,-fsanitize-coverage=trace-cmp)
2201 KCOV uses preallocated per-cpu areas to collect coverage from
2229 the kernel command line (when built-in), or from userspace (when
2230 built-in or modular).
2265 Documentation/fault-injection/provoke-crashes.rst
2275 to the KUnit documentation in Documentation/dev-tools/kunit/.
2301 tristate "Array-based sort test" if !KUNIT_ALL_TESTS
2305 This option enables the self-test function of 'sort()' at boot,
2393 tristate "Red-Black tree test"
2400 tristate "Reed-Solomon library test"
2406 This option enables the self-test function of rslib at boot,
2422 Enable this option to build test module which validates per-cpu
2428 tristate "Perform an atomic64_t self-test"
2440 This is a one-shot self test that permutes through the
2442 N-disk array. Recovery is performed with the asynchronous
2528 to the KUnit documentation in Documentation/dev-tools/kunit/.
2568 no compiler warnings from C=1 sparse checker or -Wextra
2615 actual firmware-using device. The contents can be rechecked by
2643 to the KUnit documentation in Documentation/dev-tools/kunit/.
2660 to the KUnit documentation in Documentation/dev-tools/kunit/.
2677 to the KUnit documentation in Documentation/dev-tools/kunit/.
2695 to the KUnit documentation in Documentation/dev-tools/kunit/.
2697 This is intended to help people writing architecture-specific
2709 to the KUnit documentation in Documentation/dev-tools/kunit/.
2721 to the KUnit documentation in Documentation/dev-tools/kunit/.
2735 to the KUnit documentation in Documentation/dev-tools/kunit/.
2740 tristate "KUnit Test for Kernel Linked-list structures" if !KUNIT_ALL_TESTS
2754 to the KUnit documentation in Documentation/dev-tools/kunit/.
2767 in Documentation/dev-tools/kunit/.
2779 to the KUnit documentation in Documentation/dev-tools/kunit/.
2791 to the KUnit documentation in Documentation/dev-tools/kunit/.
2803 to the KUnit documentation in Documentation/dev-tools/kunit/.
2815 to the KUnit documentation in Documentation/dev-tools/kunit/.
2826 to the KUnit documentation in Documentation/dev-tools/kunit/.
2837 to the KUnit documentation in Documentation/dev-tools/kunit/.
2849 to the KUnit documentation in Documentation/dev-tools/kunit/.
2862 to the KUnit documentation in Documentation/dev-tools/kunit/.
2871 Test if the kernel is zero-initializing stack variables and
2917 This is intended to help people writing architecture-specific
2934 This is intended to help people writing architecture-specific
3006 tools/testing/selftests/kmod/kmod.sh --help
3150 virt_to_phys() done against the non-linear part of the
3174 Test if the kernel is zero-initializing heap and page allocations.
3188 Doing so will allow you to run tools/testing/selftest/vm/hmm-tests.
3207 for self-testing floating point control register setting in
3318 memtest=0, mean disabled; -- default
3327 bool "Microsoft Hyper-V driver testing"
3331 Select this option to enable Hyper-V vmbus testing.
3341 Enables rustc's `-Cdebug-assertions` codegen option.
3357 Enables rustc's `-Coverflow-checks` codegen option.
3360 overflow. When overflow-checks are enabled, a Rust panic will occur
3368 bool "Allow unoptimized build-time assertions"
3392 please refer to the KUnit documentation in Documentation/dev-tools/kunit/.