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Some general debugging features like kmemleak, KASAN, lockdep, UBSAN etc help fix many viruses like a microscope. On the other hand, those features are scatter around and mixed up with more situational debugging options making them difficult to consume properly. This cold help amplify the general debugging/testing efforts and help establish sensitive default values for those options across the broad. This could also help different distros to collaborate on maintaining debug-flavored kernels. The config is based on years' experiences running daily CI inside the largest enterprise Linux distro company to seek regressions on linux-next builds on different bare-metal and virtual platforms. It can be used for example, $ make ARCH=arm64 defconfig debug.config Since KASAN and KCSAN can't be enabled together, we will need to create a separate one for KCSAN later as well. Link: https://lkml.kernel.org/r/20211115134754.7334-1-quic_qiancai@quicinc.com Signed-off-by: Qian Cai <quic_qiancai@quicinc.com> Acked-by: Paul E. McKenney <paulmck@kernel.org> Cc: Marco Elver <elver@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Daniel Thompson <daniel.thompson@linaro.org> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Naresh Kamboju <naresh.kamboju@linaro.org> Cc: "Stephen Rothwell" <sfr@canb.auug.org.au> Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
106 lines
2.5 KiB
Plaintext
106 lines
2.5 KiB
Plaintext
# The config is based on running daily CI for enterprise Linux distros to
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# seek regressions on linux-next builds on different bare-metal and virtual
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# platforms. It can be used for example,
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#
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# $ make ARCH=arm64 defconfig debug.config
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#
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# Keep alphabetically sorted inside each section.
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#
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# printk and dmesg options
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#
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CONFIG_DEBUG_BUGVERBOSE=y
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CONFIG_DYNAMIC_DEBUG=y
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CONFIG_PRINTK_CALLER=y
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CONFIG_PRINTK_TIME=y
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CONFIG_SYMBOLIC_ERRNAME=y
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#
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# Compile-time checks and compiler options
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#
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CONFIG_DEBUG_INFO=y
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CONFIG_DEBUG_SECTION_MISMATCH=y
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CONFIG_FRAME_WARN=2048
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CONFIG_SECTION_MISMATCH_WARN_ONLY=y
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#
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# Generic Kernel Debugging Instruments
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#
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# CONFIG_UBSAN_ALIGNMENT is not set
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# CONFIG_UBSAN_DIV_ZERO is not set
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# CONFIG_UBSAN_TRAP is not set
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# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
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CONFIG_DEBUG_FS=y
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CONFIG_DEBUG_FS_ALLOW_ALL=y
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CONFIG_DEBUG_IRQFLAGS=y
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CONFIG_UBSAN=y
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CONFIG_UBSAN_BOOL=y
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CONFIG_UBSAN_BOUNDS=y
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CONFIG_UBSAN_ENUM=y
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CONFIG_UBSAN_SHIFT=y
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CONFIG_UBSAN_UNREACHABLE=y
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#
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# Memory Debugging
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#
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# CONFIG_DEBUG_PAGEALLOC is not set
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# CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF is not set
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# CONFIG_DEBUG_RODATA_TEST is not set
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# CONFIG_DEBUG_WX is not set
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# CONFIG_KFENCE is not set
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# CONFIG_PAGE_POISONING is not set
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# CONFIG_SLUB_STATS is not set
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CONFIG_PAGE_EXTENSION=y
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CONFIG_PAGE_OWNER=y
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CONFIG_DEBUG_KMEMLEAK=y
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CONFIG_DEBUG_KMEMLEAK_AUTO_SCAN=y
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CONFIG_DEBUG_OBJECTS=y
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CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
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CONFIG_DEBUG_OBJECTS_FREE=y
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CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y
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CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
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CONFIG_DEBUG_OBJECTS_TIMERS=y
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CONFIG_DEBUG_OBJECTS_WORK=y
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CONFIG_DEBUG_PER_CPU_MAPS=y
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CONFIG_DEBUG_STACK_USAGE=y
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CONFIG_DEBUG_VIRTUAL=y
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CONFIG_DEBUG_VM=y
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CONFIG_DEBUG_VM_PGFLAGS=y
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CONFIG_DEBUG_VM_RB=y
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CONFIG_DEBUG_VM_VMACACHE=y
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CONFIG_GENERIC_PTDUMP=y
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CONFIG_KASAN=y
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CONFIG_KASAN_GENERIC=y
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CONFIG_KASAN_INLINE=y
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CONFIG_KASAN_VMALLOC=y
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CONFIG_PTDUMP_DEBUGFS=y
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CONFIG_SCHED_STACK_END_CHECK=y
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CONFIG_SLUB_DEBUG_ON=y
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#
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# Debug Oops, Lockups and Hangs
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#
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# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
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# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
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CONFIG_DEBUG_ATOMIC_SLEEP=y
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CONFIG_DETECT_HUNG_TASK=y
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CONFIG_PANIC_ON_OOPS=y
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CONFIG_PANIC_TIMEOUT=0
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CONFIG_SOFTLOCKUP_DETECTOR=y
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#
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# Lock Debugging (spinlocks, mutexes, etc...)
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#
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# CONFIG_PROVE_RAW_LOCK_NESTING is not set
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CONFIG_PROVE_LOCKING=y
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#
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# Debug kernel data structures
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#
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CONFIG_BUG_ON_DATA_CORRUPTION=y
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#
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# RCU Debugging
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#
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CONFIG_PROVE_RCU=y
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CONFIG_PROVE_RCU_LIST=y
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#
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# Tracers
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#
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CONFIG_BRANCH_PROFILE_NONE=y
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CONFIG_DYNAMIC_FTRACE=y
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CONFIG_FTRACE=y
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CONFIG_FUNCTION_TRACER=y
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