Steven Rostedt (Google) 7ae4ba7195 ftrace/scripts: Update the instructions for ftrace-bisect.sh ... The instructions for the ftrace-bisect.sh script, which is used to find what function is being traced that is causing a kernel crash, and possibly a triple fault reboot, uses the old method. In 5.1, a new feature was added that let the user write in the index into available_filter_functions that maps to the function a user wants to set in set_ftrace_filter (or set_ftrace_notrace). This takes O(1) to set, as suppose to writing a function name, which takes O(n) (where n is the number of functions in available_filter_functions). The ftrace-bisect.sh requires setting half of the functions in available_filter_functions, which is O(n^2) using the name method to enable and can take several minutes to complete. The number method is O(n) which takes less than a second to complete. Using the number method for any kernel 5.1 and after is the proper way to do the bisect. Update the usage to reflect the new change, as well as using the /sys/kernel/tracing path instead of the obsolete debugfs path. Link: https://lkml.kernel.org/r/20230123112252.022003dd@gandalf.local.home Cc: stable@vger.kernel.org Cc: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Fixes: f79b3f3385 ("ftrace: Allow enabling of filters via index of available_filter_functions") Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>		2023-01-24 13:13:07 -05:00
..
atomic	kbuild: check sha1sum just once for each atomic header	2022-09-29 04:40:14 +09:00
basic	fixdep: remove unneeded <stdarg.h> inclusion	2022-12-30 17:26:19 +09:00
clang-tools	kbuild: change module.order to list *.o instead of *.ko	2022-12-14 15:42:40 +09:00
coccinelle	update Coccinelle URL	2022-08-07 21:30:36 +02:00
dtc	scripts/dtc: Update to upstream version v1.6.1-63-g55778a03df61	2022-11-10 08:37:19 -06:00
dummy-tools	kbuild: dummy-tools: pretend we understand __LONG_DOUBLE_128__	2022-08-21 02:47:48 +09:00
gcc-plugins	treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_385.RULE	2022-06-10 14:51:36 +02:00
gdb	Updates to various subsystems which I help look after. lib, ocfs2,	2022-08-07 10:03:24 -07:00
genksyms	genksyms: adjust the output format to modpost	2022-05-24 16:33:20 +09:00
kconfig	kconfig: Update all declared targets	2023-01-13 16:29:52 +09:00
ksymoops	…
mod	Kbuild updates for v6.2	2022-12-19 12:33:32 -06:00
package	scripts: rpm: make clear that mkspec script contains 4.13 feature	2023-01-11 20:42:34 +09:00
selinux	selinux: remove runtime disable message in the install_policy.sh script	2022-09-20 14:12:25 -04:00
tracing	ftrace/scripts: Update the instructions for ftrace-bisect.sh	2023-01-24 13:13:07 -05:00
.gitignore	scripts: add `generate_rust_target.rs`	2022-09-28 09:02:06 +02:00
Kbuild.include	kbuild: use .NOTINTERMEDIATE for future GNU Make versions	2022-12-13 22:29:10 +09:00
Kconfig.include	Kbuild: add Rust support	2022-09-28 09:02:20 +02:00
Lindent	…
Makefile	Kbuild: add Rust support	2022-09-28 09:02:20 +02:00
Makefile.asm-generic	kbuild: add kbuild-file macro	2022-11-22 23:40:02 +09:00
Makefile.build	Kbuild updates for v6.2	2022-12-19 12:33:32 -06:00
Makefile.clang	um: Allow builds with Clang	2022-03-21 08:13:03 -07:00
Makefile.clean	kbuild: add kbuild-file macro	2022-11-22 23:40:02 +09:00
Makefile.compiler	kbuild: add test-{ge,gt,le,lt} macros	2022-12-13 22:21:14 +09:00
Makefile.debug	Makefile.debug: support for -gz=zstd	2022-11-21 10:18:39 +09:00
Makefile.dtbinst	kbuild: add kbuild-file macro	2022-11-22 23:40:02 +09:00
Makefile.extrawarn	kbuild: add -Wundef to KBUILD_CPPFLAGS for W=1 builds	2022-12-11 17:28:32 +09:00
Makefile.gcc-plugins	gcc-plugins: Undefine LATENT_ENTROPY_PLUGIN when plugin disabled for a file	2022-08-16 12:25:53 -07:00
Makefile.headersinst	…
Makefile.host	Kbuild: add Rust support	2022-09-28 09:02:20 +02:00
Makefile.kasan	…
Makefile.kcov	…
Makefile.kcsan	…
Makefile.kmsan	kmsan: add KMSAN runtime core	2022-10-03 14:03:19 -07:00
Makefile.lib	powerpc updates for 6.2	2022-12-19 07:13:33 -06:00
Makefile.modfinal	kbuild: change module.order to list *.o instead of *.ko	2022-12-14 15:42:40 +09:00
Makefile.modinst	kbuild: change module.order to list *.o instead of *.ko	2022-12-14 15:42:40 +09:00
Makefile.modpost	kbuild: readd -w option when vmlinux.o or Module.symver is missing	2023-01-05 16:53:48 +09:00
Makefile.package	kbuild: add a missing line for help message	2022-12-30 17:22:14 +09:00
Makefile.randstruct	randstruct: Enable Clang support	2022-05-08 01:33:07 -07:00
Makefile.ubsan	ubsan: remove CONFIG_UBSAN_OBJECT_SIZE	2022-01-20 08:52:55 +02:00
Makefile.userprogs	…
Makefile.vmlinux	kbuild: Fix CFI hash randomization with KASAN	2023-01-13 15:22:03 -08:00
Makefile.vmlinux_o	kbuild: move modules.builtin(.modinfo) rules to Makefile.vmlinux_o	2022-10-03 03:52:58 +09:00
adjust_autoksyms.sh	kbuild: split the second line of *.mod into *.usyms	2022-05-08 03:16:59 +09:00
as-version.sh	…
asn1_compiler.c	scripts: remove unused argument 'type'	2022-09-29 04:40:16 +09:00
bin2c.c	…
bloat-o-meter	scripts/bloat-o-meter: add -p argument	2022-07-17 17:31:40 -07:00
bootgraph.pl	…
bpf_doc.py	bpf: Rework process_dynptr_func	2022-12-08 18:25:31 -08:00
cc-can-link.sh	…
cc-version.sh	Kbuild: add Rust support	2022-09-28 09:02:20 +02:00
check-local-export	kbuild: rewrite check-local-export in sh/awk	2022-09-29 04:40:15 +09:00
check-sysctl-docs	…
check_extable.sh	…
checkdeclares.pl	…
checkincludes.pl	…
checkkconfigsymbols.py	…
checkpatch.pl	checkpatch: add check for array allocator family argument order	2022-11-30 16:13:16 -08:00
checkstack.pl	checkstack: add riscv support for scripts/checkstack.pl	2022-07-27 21:18:00 +09:00
checksyscalls.sh	checksyscalls: ignore -Wunused-macros	2022-05-08 03:16:59 +09:00
checkversion.pl	…
cleanfile	…
cleanpatch	…
coccicheck	scripts: coccicheck: use "grep -E" instead of "egrep"	2022-09-21 21:23:56 +02:00
config	…
const_structs.checkpatch	const_structs.checkpatch: add frequently used ops structs	2022-01-20 08:52:54 +02:00
decode_stacktrace.sh	scripts: decode_stacktrace: demangle Rust symbols	2022-09-28 09:01:40 +02:00
decodecode	scripts/decodecode: improve faulting line determination	2022-09-11 21:55:05 -07:00
depmod.sh	…
dev-needs.sh	…
diffconfig	…
documentation-file-ref-check	…
export_report.pl	…
extract-ikconfig	scripts/extract-ikconfig: add zstd compression support	2022-08-29 13:58:47 +09:00
extract-module-sig.pl	…
extract-sys-certs.pl	…
extract-vmlinux	…
extract_xc3028.pl	…
faddr2line	scripts/faddr2line: Fix regression in name resolution on ppc64le	2022-11-16 10:42:10 +01:00
file-size.sh	…
find-unused-docs.sh	…
gcc-x86_32-has-stack-protector.sh	…
gcc-x86_64-has-stack-protector.sh	…
gen-randstruct-seed.sh	randstruct: Move seed generation into scripts/basic/	2022-05-08 01:33:07 -07:00
gen_autoksyms.sh	kbuild: change module.order to list *.o instead of *.ko	2022-12-14 15:42:40 +09:00
gen_ksymdeps.sh	…
generate_initcall_order.pl	…
generate_rust_analyzer.py	rust: add `build_error` crate	2022-12-04 01:59:16 +01:00
generate_rust_target.rs	x86: enable initial Rust support	2022-09-28 09:02:45 +02:00
get_abi.pl	scripts/get_abi: Fix wrong script file name in the help message	2022-04-24 10:38:44 +02:00
get_dvb_firmware	…
get_feat.pl	scripts: get_feat.pl: use /usr/bin/env to find perl	2022-06-30 12:22:17 -06:00
get_maintainer.pl	get_maintainer: Honor mailmap for in file emails	2022-04-29 14:38:00 -07:00
gfp-translate	…
head-object-list.txt	RISC-V Patches for the 6.2 Merge Window, Part 1	2022-12-14 15:23:49 -08:00
headerdep.pl	…
headers_install.sh	scripts: headers_install.sh: Update config leak ignore entries	2022-07-27 21:18:00 +09:00
insert-sys-cert.c	…
install.sh	kbuild: factor out the common installation code into scripts/install.sh	2022-05-11 21:45:53 +09:00
is_rust_module.sh	scripts: add `is_rust_module.sh`	2022-09-28 09:02:06 +02:00
jobserver-exec	scripts: support GNU make 4.4 in jobserver-exec	2023-01-16 20:15:20 +09:00
kallsyms.c	Char/Misc driver changes for 6.2-rc1	2022-12-16 03:49:24 -08:00
kernel-doc	hardening updates for v6.2-rc1	2022-12-14 12:20:00 -08:00
ld-version.sh	…
leaking_addresses.pl	…
link-vmlinux.sh	kallsyms: Correctly sequence symbols when CONFIG_LTO_CLANG=y	2022-11-12 18:47:36 -08:00
makelst	…
markup_oops.pl	…
min-tool-version.sh	Documentation: raise minimum supported version of binutils to 2.25	2022-12-13 22:21:14 +09:00
mkcompile_h	Revert "kbuild: Make scripts/compile.h when sh != bash"	2022-09-29 04:40:15 +09:00
mksysmap	kallsyms: ignore __kstrtab_* and __kstrtabns_* symbols	2022-10-03 03:51:58 +09:00
mkuboot.sh	…
module.lds.S	arm64: unwind: add asynchronous unwind tables to kernel and modules	2022-11-09 18:06:35 +00:00
modules-check.sh	kbuild: change module.order to list *.o instead of *.ko	2022-12-14 15:42:40 +09:00
nsdeps	scripts/nsdeps: adjust to the format change of *.mod files	2022-06-08 20:14:13 +09:00
objdiff	kbuild: clean .tmp_* pattern by make clean	2022-06-05 06:20:57 +09:00
objdump-func	scripts: Create objdump-func helper script	2022-05-12 10:08:43 -07:00
pahole-flags.sh	scripts/pahole-flags.sh: Parse DWARF and generate BTF with multithreading.	2022-02-22 14:32:44 -08:00
pahole-version.sh	kbuild: Add CONFIG_PAHOLE_VERSION	2022-02-02 11:19:33 +01:00
parse-maintainers.pl	…
patch-kernel	…
profile2linkerlist.pl	…
prune-kernel	scripts/prune-kernel: Use kernel-install if available	2022-05-11 21:46:38 +09:00
recordmcount.c	LoongArch/ftrace: Add recordmcount support	2022-12-14 08:41:53 +08:00
recordmcount.h	…
recordmcount.pl	nds32: Remove the architecture	2022-03-07 13:54:59 +01:00
remove-stale-files	kconfig: refactor Makefile to reduce process forks	2022-12-13 22:29:10 +09:00
rust_is_available.sh	scripts: add `rust_is_available.sh`	2022-09-28 09:02:06 +02:00
rust_is_available_bindgen_libclang.h	scripts: add `rust_is_available.sh`	2022-09-28 09:02:06 +02:00
setlocalversion	…
show_delta	…
sign-file.c	sign-file: Fix confusing error messages	2022-08-03 23:56:20 +03:00
sorttable.c	LoongArch: extable: Add `type` and `data` fields	2022-12-14 08:36:11 +08:00
sorttable.h	script/sorttable: Fix some initialization problems	2022-01-18 10:17:18 -05:00
spdxcheck-test.sh	docs: move Linux logo into a new `images` folder	2022-06-01 09:32:45 -06:00
spdxcheck.py	scripts/spdxcheck: Put excluded files and directories into a separate file	2022-05-18 15:34:33 +02:00
spdxexclude	scripts/spdxcheck: Exclude top-level README	2022-05-18 15:35:42 +02:00
spelling.txt	scripts/spelling.txt: add more spellings to spelling.txt	2022-11-18 13:55:09 -08:00
sphinx-pre-install	docs: sphinx-pre-install: don't require the RTD theme	2022-10-13 11:14:43 -06:00
split-man.pl	…
stackdelta	…
stackusage	…
subarch.include	LoongArch: Add build infrastructure	2022-06-03 20:09:27 +08:00
syscallhdr.sh	…
syscallnr.sh	…
syscalltbl.sh	…
tags.sh	scripts/tags.sh: Include tools directory in tags generation	2022-07-01 10:32:30 +02:00
test_fortify.sh	fortify: Update compile-time tests for Clang 14	2022-02-13 16:50:06 -08:00
tools-support-relr.sh	…
unifdef.c	…
ver_linux	…
xen-hypercalls.sh	…
xz_wrap.sh	…