The patch titled
Subject: configs: introduce debug.config for CI-like setup
has been added to the -mm tree. Its filename is
configs-introduce-debugconfig-for-ci-like-setup.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/configs-introduce-debugconfig-for-ci-like-setup.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/configs-introduce-debugconfig-for-ci-like-setup.patch
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------------------------------------------------------
From: Qian Cai <quic_qiancai@xxxxxxxxxxx>
Subject: configs: introduce debug.config for CI-like setup
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@xxxxxxxxxxx
Signed-off-by: Qian Cai <quic_qiancai@xxxxxxxxxxx>
Acked-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
Cc: Marco Elver <elver@xxxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Daniel Thompson <daniel.thompson@xxxxxxxxxx>
Cc: Masahiro Yamada <masahiroy@xxxxxxxxxx>
Cc: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx>
Cc: "Stephen Rothwell" <sfr@xxxxxxxxxxxxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/configs/debug.config | 105 ++++++++++++++++++++++++++++++++++
1 file changed, 105 insertions(+)
--- /dev/null
+++ a/kernel/configs/debug.config
@@ -0,0 +1,105 @@
+# The config is based on running daily CI for enterprise Linux distros 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
+#
+# Keep alphabetically sorted inside each section.
+#
+# printk and dmesg options
+#
+CONFIG_DEBUG_BUGVERBOSE=y
+CONFIG_DYNAMIC_DEBUG=y
+CONFIG_PRINTK_CALLER=y
+CONFIG_PRINTK_TIME=y
+CONFIG_SYMBOLIC_ERRNAME=y
+#
+# Compile-time checks and compiler options
+#
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_SECTION_MISMATCH=y
+CONFIG_FRAME_WARN=2048
+CONFIG_SECTION_MISMATCH_WARN_ONLY=y
+#
+# Generic Kernel Debugging Instruments
+#
+# CONFIG_UBSAN_ALIGNMENT is not set
+# CONFIG_UBSAN_DIV_ZERO is not set
+# CONFIG_UBSAN_TRAP is not set
+# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
+CONFIG_DEBUG_FS=y
+CONFIG_DEBUG_FS_ALLOW_ALL=y
+CONFIG_DEBUG_IRQFLAGS=y
+CONFIG_UBSAN=y
+CONFIG_UBSAN_BOOL=y
+CONFIG_UBSAN_BOUNDS=y
+CONFIG_UBSAN_ENUM=y
+CONFIG_UBSAN_SHIFT=y
+CONFIG_UBSAN_UNREACHABLE=y
+#
+# Memory Debugging
+#
+# CONFIG_DEBUG_PAGEALLOC is not set
+# CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF is not set
+# CONFIG_DEBUG_RODATA_TEST is not set
+# CONFIG_DEBUG_WX is not set
+# CONFIG_KFENCE is not set
+# CONFIG_PAGE_POISONING is not set
+# CONFIG_SLUB_STATS is not set
+CONFIG_PAGE_EXTENSION=y
+CONFIG_PAGE_OWNER=y
+CONFIG_DEBUG_KMEMLEAK=y
+CONFIG_DEBUG_KMEMLEAK_AUTO_SCAN=y
+CONFIG_DEBUG_OBJECTS=y
+CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
+CONFIG_DEBUG_OBJECTS_FREE=y
+CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y
+CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
+CONFIG_DEBUG_OBJECTS_TIMERS=y
+CONFIG_DEBUG_OBJECTS_WORK=y
+CONFIG_DEBUG_PER_CPU_MAPS=y
+CONFIG_DEBUG_STACK_USAGE=y
+CONFIG_DEBUG_VIRTUAL=y
+CONFIG_DEBUG_VM=y
+CONFIG_DEBUG_VM_PGFLAGS=y
+CONFIG_DEBUG_VM_RB=y
+CONFIG_DEBUG_VM_VMACACHE=y
+CONFIG_GENERIC_PTDUMP=y
+CONFIG_KASAN=y
+CONFIG_KASAN_GENERIC=y
+CONFIG_KASAN_INLINE=y
+CONFIG_KASAN_VMALLOC=y
+CONFIG_PTDUMP_DEBUGFS=y
+CONFIG_SCHED_STACK_END_CHECK=y
+CONFIG_SLUB_DEBUG_ON=y
+#
+# Debug Oops, Lockups and Hangs
+#
+# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
+# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
+CONFIG_DEBUG_ATOMIC_SLEEP=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_PANIC_TIMEOUT=0
+CONFIG_SOFTLOCKUP_DETECTOR=y
+#
+# Lock Debugging (spinlocks, mutexes, etc...)
+#
+# CONFIG_PROVE_RAW_LOCK_NESTING is not set
+CONFIG_PROVE_LOCKING=y
+#
+# Debug kernel data structures
+#
+CONFIG_BUG_ON_DATA_CORRUPTION=y
+#
+# RCU Debugging
+#
+CONFIG_PROVE_RCU=y
+CONFIG_PROVE_RCU_LIST=y
+#
+# Tracers
+#
+CONFIG_BRANCH_PROFILE_NONE=y
+CONFIG_DYNAMIC_FTRACE=y
+CONFIG_FTRACE=y
+CONFIG_FUNCTION_TRACER=y
_
Patches currently in -mm which might be from quic_qiancai@xxxxxxxxxxx are
configs-introduce-debugconfig-for-ci-like-setup.patch
