- Linux-kselftest-mirror - lists.linaro.org

[PATCH bpf-next 4/4] selftest: bpf: Test copying a sockmap and sockhash

by Lorenz Bauer

Since we can now call map_update_elem(sockmap) from bpf_iter context it's possible to copy a sockmap or sockhash in the kernel. Add a selftest which exercises this. Signed-off-by: Lorenz Bauer <lmb(a)cloudflare.com> --- .../selftests/bpf/prog_tests/sockmap_basic.c | 14 +++++----- .../selftests/bpf/progs/bpf_iter_sockmap.c | 27 +++++++++++++++---- 2 files changed, 30 insertions(+), 11 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c index e8a4bfb4d9f4..854a508e81ce 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c +++ b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c @@ -194,7 +194,7 @@ static void test_sockmap_invalid_update(void) test_sockmap_invalid_update__destroy(skel); } -static void test_sockmap_iter(enum bpf_map_type map_type) +static void test_sockmap_copy(enum bpf_map_type map_type) { DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts); int err, len, src_fd, iter_fd, duration = 0; @@ -242,7 +242,7 @@ static void test_sockmap_iter(enum bpf_map_type map_type) linfo.map.map_fd = src_fd; opts.link_info = &linfo; opts.link_info_len = sizeof(linfo); - link = bpf_program__attach_iter(skel->progs.count_elems, &opts); + link = bpf_program__attach_iter(skel->progs.copy, &opts); if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n")) goto out; @@ -265,6 +265,8 @@ static void test_sockmap_iter(enum bpf_map_type map_type) skel->bss->socks, num_sockets)) goto close_iter; + compare_cookies(src, skel->maps.dst); + close_iter: close(iter_fd); free_link: @@ -294,8 +296,8 @@ void test_sockmap_basic(void) test_sockmap_update(BPF_MAP_TYPE_SOCKHASH); if (test__start_subtest("sockmap update in unsafe context")) test_sockmap_invalid_update(); - if (test__start_subtest("sockmap iter")) - test_sockmap_iter(BPF_MAP_TYPE_SOCKMAP); - if (test__start_subtest("sockhash iter")) - test_sockmap_iter(BPF_MAP_TYPE_SOCKHASH); + if (test__start_subtest("sockmap copy")) + test_sockmap_copy(BPF_MAP_TYPE_SOCKMAP); + if (test__start_subtest("sockhash copy")) + test_sockmap_copy(BPF_MAP_TYPE_SOCKHASH); } diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_sockmap.c b/tools/testing/selftests/bpf/progs/bpf_iter_sockmap.c index 1af7555f6057..f3af0e30cead 100644 --- a/tools/testing/selftests/bpf/progs/bpf_iter_sockmap.c +++ b/tools/testing/selftests/bpf/progs/bpf_iter_sockmap.c @@ -22,21 +22,38 @@ struct { __type(value, __u64); } sockhash SEC(".maps"); +struct { + __uint(type, BPF_MAP_TYPE_SOCKHASH); + __uint(max_entries, 64); + __type(key, __u32); + __type(value, __u64); +} dst SEC(".maps"); + __u32 elems = 0; __u32 socks = 0; SEC("iter/sockmap") -int count_elems(struct bpf_iter__sockmap *ctx) +int copy(struct bpf_iter__sockmap *ctx) { struct sock *sk = ctx->sk; __u32 tmp, *key = ctx->key; int ret; - if (key) - elems++; + if (!key) + return 0; - if (sk) + elems++; + + /* We need a temporary buffer on the stack, since the verifier doesn't + * let us use the pointer from the context as an argument to the helper. + */ + tmp = *key; + + if (sk) { socks++; + return bpf_map_update_elem(&dst, &tmp, sk, 0) != 0; + } - return 0; + ret = bpf_map_delete_elem(&dst, &tmp); + return ret && ret != -ENOENT; } -- 2.25.1

4 years, 3 months

1
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[PATCH bpf-next 3/4] bpf: selftests: remove shared header from sockmap iter test

by Lorenz Bauer

The shared header to define SOCKMAP_MAX_ENTRIES is a bit overkill. Dynamically allocate the sock_fd array based on bpf_map__max_entries instead. Suggested-by: Yonghong Song <yhs(a)fb.com> Signed-off-by: Lorenz Bauer <lmb(a)cloudflare.com> Acked-by: Yonghong Song <yhs(a)fb.com> --- .../selftests/bpf/prog_tests/sockmap_basic.c | 36 +++++++++---------- .../selftests/bpf/progs/bpf_iter_sockmap.c | 5 ++- .../selftests/bpf/progs/bpf_iter_sockmap.h | 3 -- 3 files changed, 20 insertions(+), 24 deletions(-) delete mode 100644 tools/testing/selftests/bpf/progs/bpf_iter_sockmap.h diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c index 67d3301bdf81..e8a4bfb4d9f4 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c +++ b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c @@ -8,8 +8,6 @@ #include "test_sockmap_invalid_update.skel.h" #include "bpf_iter_sockmap.skel.h" -#include "progs/bpf_iter_sockmap.h" - #define TCP_REPAIR 19 /* TCP sock is under repair right now */ #define TCP_REPAIR_ON 1 @@ -201,9 +199,9 @@ static void test_sockmap_iter(enum bpf_map_type map_type) DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts); int err, len, src_fd, iter_fd, duration = 0; union bpf_iter_link_info linfo = {0}; - __s64 sock_fd[SOCKMAP_MAX_ENTRIES]; - __u32 i, num_sockets, max_elems; + __u32 i, num_sockets, num_elems; struct bpf_iter_sockmap *skel; + __s64 *sock_fd = NULL; struct bpf_link *link; struct bpf_map *src; char buf[64]; @@ -212,22 +210,23 @@ static void test_sockmap_iter(enum bpf_map_type map_type) if (CHECK(!skel, "bpf_iter_sockmap__open_and_load", "skeleton open_and_load failed\n")) return; - for (i = 0; i < ARRAY_SIZE(sock_fd); i++) - sock_fd[i] = -1; - - /* Make sure we have at least one "empty" entry to test iteration of - * an empty slot. - */ - num_sockets = ARRAY_SIZE(sock_fd) - 1; - if (map_type == BPF_MAP_TYPE_SOCKMAP) { src = skel->maps.sockmap; - max_elems = bpf_map__max_entries(src); + num_elems = bpf_map__max_entries(src); + num_sockets = num_elems - 1; } else { src = skel->maps.sockhash; - max_elems = num_sockets; + num_elems = bpf_map__max_entries(src) - 1; + num_sockets = num_elems; } + sock_fd = calloc(num_sockets, sizeof(*sock_fd)); + if (CHECK(!sock_fd, "calloc(sock_fd)", "failed to allocate\n")) + goto out; + + for (i = 0; i < num_sockets; i++) + sock_fd[i] = -1; + src_fd = bpf_map__fd(src); for (i = 0; i < num_sockets; i++) { @@ -258,8 +257,8 @@ static void test_sockmap_iter(enum bpf_map_type map_type) goto close_iter; /* test results */ - if (CHECK(skel->bss->elems != max_elems, "elems", "got %u expected %u\n", - skel->bss->elems, max_elems)) + if (CHECK(skel->bss->elems != num_elems, "elems", "got %u expected %u\n", + skel->bss->elems, num_elems)) goto close_iter; if (CHECK(skel->bss->socks != num_sockets, "socks", "got %u expected %u\n", @@ -271,10 +270,11 @@ static void test_sockmap_iter(enum bpf_map_type map_type) free_link: bpf_link__destroy(link); out: - for (i = 0; i < num_sockets; i++) { + for (i = 0; sock_fd && i < num_sockets; i++) if (sock_fd[i] >= 0) close(sock_fd[i]); - } + if (sock_fd) + free(sock_fd); bpf_iter_sockmap__destroy(skel); } diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_sockmap.c b/tools/testing/selftests/bpf/progs/bpf_iter_sockmap.c index 0e27f73dd803..1af7555f6057 100644 --- a/tools/testing/selftests/bpf/progs/bpf_iter_sockmap.c +++ b/tools/testing/selftests/bpf/progs/bpf_iter_sockmap.c @@ -2,7 +2,6 @@ /* Copyright (c) 2020 Cloudflare */ #include "bpf_iter.h" #include "bpf_tracing_net.h" -#include "bpf_iter_sockmap.h" #include <bpf/bpf_helpers.h> #include <bpf/bpf_tracing.h> #include <errno.h> @@ -11,14 +10,14 @@ char _license[] SEC("license") = "GPL"; struct { __uint(type, BPF_MAP_TYPE_SOCKMAP); - __uint(max_entries, SOCKMAP_MAX_ENTRIES); + __uint(max_entries, 64); __type(key, __u32); __type(value, __u64); } sockmap SEC(".maps"); struct { __uint(type, BPF_MAP_TYPE_SOCKHASH); - __uint(max_entries, SOCKMAP_MAX_ENTRIES); + __uint(max_entries, 64); __type(key, __u32); __type(value, __u64); } sockhash SEC(".maps"); diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_sockmap.h b/tools/testing/selftests/bpf/progs/bpf_iter_sockmap.h deleted file mode 100644 index 35a675d13c0f..000000000000 --- a/tools/testing/selftests/bpf/progs/bpf_iter_sockmap.h +++ /dev/null @@ -1,3 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ - -#define SOCKMAP_MAX_ENTRIES (64) -- 2.25.1

4 years, 3 months

1
0
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[PATCH bpf-next 2/4] selftests: bpf: Add helper to compare socket cookies

by Lorenz Bauer

We compare socket cookies to ensure that insertion into a sockmap worked. Pull this out into a helper function for use in other tests. Signed-off-by: Lorenz Bauer <lmb(a)cloudflare.com> --- .../selftests/bpf/prog_tests/sockmap_basic.c | 50 +++++++++++++------ 1 file changed, 36 insertions(+), 14 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c index 4b7a527e7e82..67d3301bdf81 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c +++ b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c @@ -50,6 +50,37 @@ static int connected_socket_v4(void) return -1; } +static void compare_cookies(struct bpf_map *src, struct bpf_map *dst) +{ + __u32 i, max_entries = bpf_map__max_entries(src); + int err, duration, src_fd, dst_fd; + + src_fd = bpf_map__fd(src); + dst_fd = bpf_map__fd(dst); + + for (i = 0; i < max_entries; i++) { + __u64 src_cookie, dst_cookie; + + err = bpf_map_lookup_elem(src_fd, &i, &src_cookie); + if (err && errno == ENOENT) { + err = bpf_map_lookup_elem(dst_fd, &i, &dst_cookie); + CHECK(!err, "map_lookup_elem(dst)", "element %u not deleted\n", i); + CHECK(err && errno != ENOENT, "map_lookup_elem(dst)", "%s\n", + strerror(errno)); + continue; + } + if (CHECK(err, "lookup_elem(src)", "%s\n", strerror(errno))) + continue; + + err = bpf_map_lookup_elem(dst_fd, &i, &dst_cookie); + if (CHECK(err, "lookup_elem(dst)", "%s\n", strerror(errno))) + continue; + + CHECK(dst_cookie != src_cookie, "cookie mismatch", + "%llu != %llu (pos %u)\n", dst_cookie, src_cookie, i); + } +} + /* Create a map, populate it with one socket, and free the map. */ static void test_sockmap_create_update_free(enum bpf_map_type map_type) { @@ -109,9 +140,9 @@ static void test_skmsg_helpers(enum bpf_map_type map_type) static void test_sockmap_update(enum bpf_map_type map_type) { struct bpf_prog_test_run_attr tattr; - int err, prog, src, dst, duration = 0; + int err, prog, src, duration = 0; struct test_sockmap_update *skel; - __u64 src_cookie, dst_cookie; + struct bpf_map *dst_map; const __u32 zero = 0; char dummy[14] = {0}; __s64 sk; @@ -127,18 +158,14 @@ static void test_sockmap_update(enum bpf_map_type map_type) prog = bpf_program__fd(skel->progs.copy_sock_map); src = bpf_map__fd(skel->maps.src); if (map_type == BPF_MAP_TYPE_SOCKMAP) - dst = bpf_map__fd(skel->maps.dst_sock_map); + dst_map = skel->maps.dst_sock_map; else - dst = bpf_map__fd(skel->maps.dst_sock_hash); + dst_map = skel->maps.dst_sock_hash; err = bpf_map_update_elem(src, &zero, &sk, BPF_NOEXIST); if (CHECK(err, "update_elem(src)", "errno=%u\n", errno)) goto out; - err = bpf_map_lookup_elem(src, &zero, &src_cookie); - if (CHECK(err, "lookup_elem(src, cookie)", "errno=%u\n", errno)) - goto out; - tattr = (struct bpf_prog_test_run_attr){ .prog_fd = prog, .repeat = 1, @@ -151,12 +178,7 @@ static void test_sockmap_update(enum bpf_map_type map_type) "errno=%u retval=%u\n", errno, tattr.retval)) goto out; - err = bpf_map_lookup_elem(dst, &zero, &dst_cookie); - if (CHECK(err, "lookup_elem(dst, cookie)", "errno=%u\n", errno)) - goto out; - - CHECK(dst_cookie != src_cookie, "cookie mismatch", "%llu != %llu\n", - dst_cookie, src_cookie); + compare_cookies(skel->maps.src, dst_map); out: test_sockmap_update__destroy(skel); -- 2.25.1

4 years, 3 months

1
0
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[PATCH] kbuild: explicitly specify the build id style

by Bill Wendling

ld's --build-id defaults to "sha1" style, while lld defaults to "fast". The build IDs are very different between the two, which may confuse programs that reference them. Signed-off-by: Bill Wendling <morbo(a)google.com> --- Makefile | 4 ++-- arch/arm/vdso/Makefile | 2 +- arch/arm64/kernel/vdso/Makefile | 2 +- arch/arm64/kernel/vdso32/Makefile | 2 +- arch/mips/vdso/Makefile | 2 +- arch/riscv/kernel/vdso/Makefile | 2 +- arch/s390/kernel/vdso64/Makefile | 2 +- arch/sparc/vdso/Makefile | 2 +- arch/x86/entry/vdso/Makefile | 2 +- tools/testing/selftests/bpf/Makefile | 2 +- 10 files changed, 11 insertions(+), 11 deletions(-) diff --git a/Makefile b/Makefile index 2b66d3398878..7e6f41c9803a 100644 --- a/Makefile +++ b/Makefile @@ -973,8 +973,8 @@ KBUILD_CPPFLAGS += $(KCPPFLAGS) KBUILD_AFLAGS += $(KAFLAGS) KBUILD_CFLAGS += $(KCFLAGS) -KBUILD_LDFLAGS_MODULE += --build-id -LDFLAGS_vmlinux += --build-id +KBUILD_LDFLAGS_MODULE += --build-id=sha1 +LDFLAGS_vmlinux += --build-id=sha1 ifeq ($(CONFIG_STRIP_ASM_SYMS),y) LDFLAGS_vmlinux += $(call ld-option, -X,) diff --git a/arch/arm/vdso/Makefile b/arch/arm/vdso/Makefile index a54f70731d9f..150ce6e6a5d3 100644 --- a/arch/arm/vdso/Makefile +++ b/arch/arm/vdso/Makefile @@ -19,7 +19,7 @@ ccflags-y += -DDISABLE_BRANCH_PROFILING -DBUILD_VDSO32 ldflags-$(CONFIG_CPU_ENDIAN_BE8) := --be8 ldflags-y := -Bsymbolic --no-undefined -soname=linux-vdso.so.1 \ -z max-page-size=4096 -nostdlib -shared $(ldflags-y) \ - --hash-style=sysv --build-id \ + --hash-style=sysv --build-id=sha1 \ -T obj-$(CONFIG_VDSO) += vdso.o diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile index 45d5cfe46429..871915097f9d 100644 --- a/arch/arm64/kernel/vdso/Makefile +++ b/arch/arm64/kernel/vdso/Makefile @@ -24,7 +24,7 @@ btildflags-$(CONFIG_ARM64_BTI_KERNEL) += -z force-bti # routines, as x86 does (see 6f121e548f83 ("x86, vdso: Reimplement vdso.so # preparation in build-time C")). ldflags-y := -shared -nostdlib -soname=linux-vdso.so.1 --hash-style=sysv \ - -Bsymbolic $(call ld-option, --no-eh-frame-hdr) --build-id -n \ + -Bsymbolic $(call ld-option, --no-eh-frame-hdr) --build-id=sha1 -n \ $(btildflags-y) -T ccflags-y := -fno-common -fno-builtin -fno-stack-protector -ffixed-x18 diff --git a/arch/arm64/kernel/vdso32/Makefile b/arch/arm64/kernel/vdso32/Makefile index d6adb4677c25..4fa4b3fe8efb 100644 --- a/arch/arm64/kernel/vdso32/Makefile +++ b/arch/arm64/kernel/vdso32/Makefile @@ -128,7 +128,7 @@ VDSO_LDFLAGS += -Wl,-Bsymbolic -Wl,--no-undefined -Wl,-soname=linux-vdso.so.1 VDSO_LDFLAGS += -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096 VDSO_LDFLAGS += -nostdlib -shared -mfloat-abi=soft VDSO_LDFLAGS += -Wl,--hash-style=sysv -VDSO_LDFLAGS += -Wl,--build-id +VDSO_LDFLAGS += -Wl,--build-id=sha1 VDSO_LDFLAGS += $(call cc32-ldoption,-fuse-ld=bfd) diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile index 57fe83235281..5810cc12bc1d 100644 --- a/arch/mips/vdso/Makefile +++ b/arch/mips/vdso/Makefile @@ -61,7 +61,7 @@ endif # VDSO linker flags. ldflags-y := -Bsymbolic --no-undefined -soname=linux-vdso.so.1 \ $(filter -E%,$(KBUILD_CFLAGS)) -nostdlib -shared \ - -G 0 --eh-frame-hdr --hash-style=sysv --build-id -T + -G 0 --eh-frame-hdr --hash-style=sysv --build-id=sha1 -T CFLAGS_REMOVE_vdso.o = -pg diff --git a/arch/riscv/kernel/vdso/Makefile b/arch/riscv/kernel/vdso/Makefile index 478e7338ddc1..7d6a94d45ec9 100644 --- a/arch/riscv/kernel/vdso/Makefile +++ b/arch/riscv/kernel/vdso/Makefile @@ -49,7 +49,7 @@ $(obj)/vdso.so.dbg: $(src)/vdso.lds $(obj-vdso) FORCE # refer to these symbols in the kernel code rather than hand-coded addresses. SYSCFLAGS_vdso.so.dbg = -shared -s -Wl,-soname=linux-vdso.so.1 \ - -Wl,--build-id -Wl,--hash-style=both + -Wl,--build-id=sha1 -Wl,--hash-style=both $(obj)/vdso-dummy.o: $(src)/vdso.lds $(obj)/rt_sigreturn.o FORCE $(call if_changed,vdsold) diff --git a/arch/s390/kernel/vdso64/Makefile b/arch/s390/kernel/vdso64/Makefile index 4a66a1cb919b..edc473b32e42 100644 --- a/arch/s390/kernel/vdso64/Makefile +++ b/arch/s390/kernel/vdso64/Makefile @@ -19,7 +19,7 @@ KBUILD_AFLAGS_64 += -m64 -s KBUILD_CFLAGS_64 := $(filter-out -m64,$(KBUILD_CFLAGS)) KBUILD_CFLAGS_64 += -m64 -fPIC -shared -fno-common -fno-builtin ldflags-y := -fPIC -shared -nostdlib -soname=linux-vdso64.so.1 \ - --hash-style=both --build-id -T + --hash-style=both --build-id=sha1 -T $(targets:%=$(obj)/%.dbg): KBUILD_CFLAGS = $(KBUILD_CFLAGS_64) $(targets:%=$(obj)/%.dbg): KBUILD_AFLAGS = $(KBUILD_AFLAGS_64) diff --git a/arch/sparc/vdso/Makefile b/arch/sparc/vdso/Makefile index f44355e46f31..469dd23887ab 100644 --- a/arch/sparc/vdso/Makefile +++ b/arch/sparc/vdso/Makefile @@ -115,7 +115,7 @@ quiet_cmd_vdso = VDSO $@ -T $(filter %.lds,$^) $(filter %.o,$^) && \ sh $(srctree)/$(src)/checkundef.sh '$(OBJDUMP)' '$@' -VDSO_LDFLAGS = -shared --hash-style=both --build-id -Bsymbolic +VDSO_LDFLAGS = -shared --hash-style=both --build-id=sha1 -Bsymbolic GCOV_PROFILE := n # diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile index 215376d975a2..ebba25ed9a38 100644 --- a/arch/x86/entry/vdso/Makefile +++ b/arch/x86/entry/vdso/Makefile @@ -176,7 +176,7 @@ quiet_cmd_vdso = VDSO $@ -T $(filter %.lds,$^) $(filter %.o,$^) && \ sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@' -VDSO_LDFLAGS = -shared --hash-style=both --build-id \ +VDSO_LDFLAGS = -shared --hash-style=both --build-id=sha1 \ $(call ld-option, --eh-frame-hdr) -Bsymbolic GCOV_PROFILE := n diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index fc946b7ac288..daf186f88a63 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -133,7 +133,7 @@ $(OUTPUT)/%:%.c $(OUTPUT)/urandom_read: urandom_read.c $(call msg,BINARY,,$@) - $(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id + $(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id=sha1 $(OUTPUT)/test_stub.o: test_stub.c $(BPFOBJ) $(call msg,CC,,$@) -- 2.28.0.681.g6f77f65b4e-goog

4 years, 3 months

3
2
0 0

[PATCH] kbuild: explicitly specify the build id style

by Sedat Dilek

[ Please CC me I am not subscribed to all MLs ] [ CC Sami ] Hi Bill, I have tested your patch on top of Sami's latest clang-cfi Git branch. Feel free to add... Tested-by: Sedat Dilek <sedat.dilek(a)gmail.com> # LLVM toolchain version 11.0.0-rc3 on x86-64 Thanks for the patch. Regards, - Sedat -

4 years, 4 months

1
0
0 0

[PATCH v1] kunit: tool: fix --alltests flag

by Brendan Higgins

Alltests flag evidently stopped working when run from outside of the root of the source tree, so fix that. Also add an additional broken config to the broken_on_uml config. Signed-off-by: Brendan Higgins <brendanhiggins(a)google.com> --- tools/testing/kunit/configs/broken_on_uml.config | 1 + tools/testing/kunit/kunit_kernel.py | 15 ++++++++++----- 2 files changed, 11 insertions(+), 5 deletions(-) diff --git a/tools/testing/kunit/configs/broken_on_uml.config b/tools/testing/kunit/configs/broken_on_uml.config index 239b9f03da2c..a7f0603d33f6 100644 --- a/tools/testing/kunit/configs/broken_on_uml.config +++ b/tools/testing/kunit/configs/broken_on_uml.config @@ -39,3 +39,4 @@ # CONFIG_QCOM_CPR is not set # CONFIG_RESET_BRCMSTB_RESCAL is not set # CONFIG_RESET_INTEL_GW is not set +# CONFIG_ADI_AXI_ADC is not set diff --git a/tools/testing/kunit/kunit_kernel.py b/tools/testing/kunit/kunit_kernel.py index e20e2056cb38..1b1826500f61 100644 --- a/tools/testing/kunit/kunit_kernel.py +++ b/tools/testing/kunit/kunit_kernel.py @@ -53,18 +53,23 @@ class LinuxSourceTreeOperations(object): except subprocess.CalledProcessError as e: raise ConfigError(e.output) - def make_allyesconfig(self): + def make_allyesconfig(self, build_dir, make_options): kunit_parser.print_with_timestamp( 'Enabling all CONFIGs for UML...') + command = ['make', 'ARCH=um', 'allyesconfig'] + if make_options: + command.extend(make_options) + if build_dir: + command += ['O=' + build_dir] process = subprocess.Popen( - ['make', 'ARCH=um', 'allyesconfig'], + command, stdout=subprocess.DEVNULL, stderr=subprocess.STDOUT) process.wait() kunit_parser.print_with_timestamp( 'Disabling broken configs to run KUnit tests...') with ExitStack() as es: - config = open(KCONFIG_PATH, 'a') + config = open(get_kconfig_path(build_dir), 'a') disable = open(BROKEN_ALLCONFIG_PATH, 'r').read() config.write(disable) kunit_parser.print_with_timestamp( @@ -161,9 +166,9 @@ class LinuxSourceTree(object): return self.build_config(build_dir, make_options) def build_um_kernel(self, alltests, jobs, build_dir, make_options): - if alltests: - self._ops.make_allyesconfig() try: + if alltests: + self._ops.make_allyesconfig(build_dir, make_options) self._ops.make_olddefconfig(build_dir, make_options) self._ops.make(jobs, build_dir, make_options) except (ConfigError, BuildError) as e: base-commit: 92a2b470086f68bf35eb9f94b6cb5ebdfac41b25 -- 2.28.0.681.g6f77f65b4e-goog

4 years, 4 months

2
1
0 0

BUG: kernel NULL pointer dereference, address: trace_event_raw_event_sched_switch

by Naresh Kamboju

While running kselftest ftracetest on i386 the kernel crash reported on linux next tag 5.9.0-rc5-next-20200921. Good news is that this crash is not seen on today's linux next tag 20200923. metadata: git branch: master git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git describe: next-20200921 make_kernelversion: 5.9.0-rc5 kernel-config: http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/intel-core2-32/lkft… Reproduce steps: - cd /opt/kselftests/default-in-kernel/ftrace - ./ftracetest crash log, -------------- [ 366.934246] BUG: kernel NULL pointer dereference, address: 00000024 [ 366.940528] #PF: supervisor read access in kernel mode [ 366.945683] #PF: error_code(0x0000) - not-present page [ 366.950828] *pde = 00000000 [ 366.953717] Oops: 0000 [#1] SMP [ 366.956862] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G W 5.9.0-rc5-next-20200921 #1 [ 366.965639] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 366.973119] EIP: trace_event_raw_event_sched_switch+0x10/0x180 [ 366.978950] Code: 08 5b 5e 5f 5d c3 8d 74 26 00 31 c0 eb e4 e8 07 42 dd 00 8d b4 26 00 00 00 00 55 89 e5 57 56 53 89 c6 89 cf 83 ec 28 8b 45 08 <8b> 5e 24 89 55 cc 89 45 d0 65 a1 14 00 00 00 89 45 f0 31 c0 f6 c7 [ 366.997687] EAX: f5582480 EBX: f5582480 ECX: f5585b40 EDX: 00000000 [ 367.003945] ESI: 00000000 EDI: f5585b40 EBP: f5593f20 ESP: f5593eec [ 367.010203] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210092 [ 367.016978] CR0: 80050033 CR2: 00000024 CR3: 0bfbc000 CR4: 003506d0 [ 367.023236] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 367.029495] DR6: fffe0ff0 DR7: 00000400 [ 367.033323] Call Trace: [ 367.035771] ? cpu_cgroup_can_attach+0x90/0x90 [ 367.040215] ? exc_general_protection+0x280/0x280 [ 367.044922] __schedule+0x4dc/0xa90 [ 367.048415] schedule_idle+0x1c/0x40 [ 367.051993] do_idle+0x185/0x2a0 [ 367.055226] cpu_startup_entry+0x25/0x30 [ 367.059142] start_secondary+0x106/0x140 [ 367.063061] startup_32_smp+0x164/0x168 [ 367.066902] Modules linked in: sch_fq 8021q iptable_filter xt_mark ip_tables cls_bpf veth algif_hash x86_pkg_temp_thermal fuse [last unloaded: test_bpf] [ 367.080550] CR2: 0000000000000024 [ 367.083871] ---[ end trace 41a54e0211ae9de1 ]--- [ 367.083872] BUG: kernel NULL pointer dereference, address: 00000024 [ 367.083873] #PF: supervisor read access in kernel mode [ 367.088489] EIP: trace_event_raw_event_sched_switch+0x10/0x180 [ 367.094743] #PF: error_code(0x0000) - not-present page [ 367.094744] *pde = 00000000 [ 367.099877] Code: 08 5b 5e 5f 5d c3 8d 74 26 00 31 c0 eb e4 e8 07 42 dd 00 8d b4 26 00 00 00 00 55 89 e5 57 56 53 89 c6 89 cf 83 ec 28 8b 45 08 <8b> 5e 24 89 55 cc 89 45 d0 65 a1 14 00 00 00 89 45 f0 31 c0 f6 c7 [ 367.099878] EAX: f5582480 EBX: f5582480 ECX: f5585b40 EDX: 00000000 [ 367.105709] [ 367.105710] Oops: 0000 [#2] SMP [ 367.110846] ESI: 00000000 EDI: f5585b40 EBP: f5593f20 ESP: f5593eec [ 367.110847] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210092 [ 367.113725] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G D W 5.9.0-rc5-next-20200921 #1 [ 367.132462] CR0: 80050033 CR2: 00000024 CR3: 0bfbc000 CR4: 003506d0 [ 367.132463] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 367.138718] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 367.138720] EIP: trace_event_raw_event_sched_switch+0x10/0x180 [ 367.140210] DR6: fffe0ff0 DR7: 00000400 [ 367.140211] Kernel panic - not syncing: Attempted to kill the idle task! [ 367.143348] Code: 08 5b 5e 5f 5d c3 8d 74 26 00 31 c0 eb e4 e8 07 42 dd 00 8d b4 26 00 00 00 00 55 89 e5 57 56 53 89 c6 89 cf 83 ec 28 8b 45 08 <8b> 5e 24 89 55 cc 89 45 d0 65 a1 14 00 00 00 89 45 f0 31 c0 f6 c7 [ 367.220218] EAX: d5ebb6c0 EBX: d5ebb6c0 ECX: cbca0700 EDX: 00000000 [ 367.226476] ESI: 00000000 EDI: cbca0700 EBP: cbc8bef0 ESP: cbc8bebc [ 367.232733] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210092 [ 367.239512] CR0: 80050033 CR2: 00000024 CR3: 0bfbc000 CR4: 003506d0 [ 367.245767] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 367.252025] DR6: fffe0ff0 DR7: 00000400 [ 367.255855] Call Trace: [ 367.258302] ? pick_next_task_fair+0x154/0x3a0 [ 367.262748] __schedule+0x4dc/0xa90 [ 367.266240] schedule_idle+0x1c/0x40 [ 367.269819] do_idle+0x185/0x2a0 [ 367.273053] cpu_startup_entry+0x25/0x30 [ 367.276978] rest_init+0x166/0x230 [ 367.280375] arch_call_rest_init+0xd/0x19 [ 367.284380] start_kernel+0x481/0x4a0 [ 367.288045] i386_start_kernel+0x48/0x4a [ 367.291970] startup_32_smp+0x164/0x168 [ 367.295803] Modules linked in: sch_fq 8021q iptable_filter xt_mark ip_tables cls_bpf veth algif_hash x86_pkg_temp_thermal fuse [last unloaded: test_bpf] [ 367.309450] CR2: 0000000000000024 [ 367.312762] ---[ end trace 41a54e0211ae9de2 ]--- [ 367.312763] BUG: kernel NULL pointer dereference, address: 00000024 [ 367.312764] #PF: supervisor read access in kernel mode [ 367.317381] EIP: trace_event_raw_event_sched_switch+0x10/0x180 [ 367.323637] #PF: error_code(0x0000) - not-present page [ 367.323638] *pde = 00000000 [ 367.328769] Code: 08 5b 5e 5f 5d c3 8d 74 26 00 31 c0 eb e4 e8 07 42 dd 00 8d b4 26 00 00 00 00 55 89 e5 57 56 53 89 c6 89 cf 83 ec 28 8b 45 08 <8b> 5e 24 89 55 cc 89 45 d0 65 a1 14 00 00 00 89 45 f0 31 c0 f6 c7 [ 367.328770] EAX: f5582480 EBX: f5582480 ECX: f5585b40 EDX: 00000000 [ 367.334600] [ 367.334601] Oops: 0000 [#3] SMP [ 367.339731] ESI: 00000000 EDI: f5585b40 EBP: f5593f20 ESP: f5593eec [ 367.339732] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210092 [ 367.342611] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D W 5.9.0-rc5-next-20200921 #1 [ 367.361346] CR0: 80050033 CR2: 00000024 CR3: 0bfbc000 CR4: 003506d0 [ 367.361347] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 367.367602] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 367.367604] EIP: trace_event_raw_event_sched_switch+0x10/0x180 [ 367.369095] DR6: fffe0ff0 DR7: 00000400 [ 367.423685] Code: 08 5b 5e 5f 5d c3 8d 74 26 00 31 c0 eb e4 e8 07 42 dd 00 8d b4 26 00 00 00 00 55 89 e5 57 56 53 89 c6 89 cf 83 ec 28 8b 45 08 <8b> 5e 24 89 55 cc 89 45 d0 65 a1 14 00 00 00 89 45 f0 31 c0 f6 c7 [ 367.442431] EAX: f2dca480 EBX: f2dca480 ECX: f5584900 EDX: 00000000 [ 367.448687] ESI: 00000000 EDI: f5584900 EBP: f5591f20 ESP: f5591eec [ 367.454945] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210092 [ 367.461722] CR0: 80050033 CR2: 00000024 CR3: 0bfbc000 CR4: 003506d0 [ 367.467980] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 367.474236] DR6: fffe0ff0 DR7: 00000400 [ 367.478067] Call Trace: [ 367.480514] ? pick_next_task_fair+0x154/0x3a0 [ 367.484961] __schedule+0x4dc/0xa90 [ 367.488453] ? inet_rtm_getroute+0x214/0x990 [ 367.492724] schedule_idle+0x1c/0x40 [ 367.496302] do_idle+0x185/0x2a0 [ 367.499526] ? inet_rtm_getroute+0x214/0x990 [ 367.503792] cpu_startup_entry+0x25/0x30 [ 367.507715] start_secondary+0x106/0x140 [ 367.511633] ? inet_rtm_getroute+0x214/0x990 [ 367.515898] startup_32_smp+0x164/0x168 [ 367.519738] Modules linked in: sch_fq 8021q iptable_filter xt_mark ip_tables cls_bpf veth algif_hash x86_pkg_temp_thermal fuse [last unloaded: test_bpf] [ 367.533385] CR2: 0000000000000024 [ 367.536698] ---[ end trace 41a54e0211ae9de3 ]--- [ 367.541316] EIP: trace_event_raw_event_sched_switch+0x10/0x180 [ 367.547140] Code: 08 5b 5e 5f 5d c3 8d 74 26 00 31 c0 eb e4 e8 07 42 dd 00 8d b4 26 00 00 00 00 55 89 e5 57 56 53 89 c6 89 cf 83 ec 28 8b 45 08 <8b> 5e 24 89 55 cc 89 45 d0 65 a1 14 00 00 00 89 45 f0 31 c0 f6 c7 [ 367.565877] EAX: f5582480 EBX: f5582480 ECX: f5585b40 EDX: 00000000 [ 367.572135] ESI: 00000000 EDI: f5585b40 EBP: f5593f20 ESP: f5593eec [ 367.578391] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210092 [ 367.585170] CR0: 80050033 CR2: 00000024 CR3: 0bfbc000 CR4: 003506d0 [ 367.591433] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 367.597691] DR6: fffe0ff0 DR7: 00000400 [ 368.219291] Shutting down cpus with NMI [ 368.223134] Kernel Offset: disabled [ 368.226617] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]--- full test log, https://lkft.validation.linaro.org/scheduler/job/1784011 https://lkft.validation.linaro.org/scheduler/job/1776849#L9308 -- Linaro LKFT https://lkft.linaro.org

4 years, 4 months

2
1
0 0

[PATCH 0/6] kselftest: arm64/mte: Tests for user-space MTE

by Amit Daniel Kachhap

These patch series adds below kselftests to test the user-space support for the ARMv8.5 Memory Tagging Extension present in arm64 tree [1]. 1) This test-case verifies that the memory allocated by kernel mmap interface can support tagged memory access. It first checks the presence of tags at address[56:59] and then proceeds with read and write. The pass criteria for this test is that tag fault exception should not happen. 2) This test-case crosses the valid memory to the invalid memory. In this memory area valid tags are not inserted so read and write should not pass. The pass criteria for this test is that tag fault exception should happen for all the illegal addresses. This test also verfies that PSTATE.TCO works properly. 3) This test-case verifies that the memory inherited by child process from parent process should have same tags copied. The pass criteria for this test is that tag fault exception should not happen. 4) This test checks different mmap flags with PROT_MTE memory protection. 5) This testcase checks that KSM should not merge pages containing different MTE tag values. However, if the tags are same then the pages may merge. This testcase uses the generic ksm sysfs interfaces to verify the MTE behaviour, so this testcase is not fullproof and may be impacted due to other load in the system. 6) Fifth test verifies that syscalls read/write etc works by considering that user pointer has valid/invalid allocation tags. To simplify the testing, a copy of the patchset on top of a recent linux tree can be found at [2]. Thanks, Amit Daniel [1]: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/mte [2]: http://linux-arm.org/git?p=linux-ak.git;a=shortlog;h=refs/heads/kselftest-m… Amit Daniel Kachhap (6): kselftest/arm64: Add utilities and a test to validate mte memory kselftest/arm64: Verify mte tag inclusion via prctl kselftest/arm64: Check forked child mte memory accessibility kselftest/arm64: Verify all different mmap MTE options kselftest/arm64: Verify KSM page merge for MTE pages kselftest/arm64: Check mte tagged user address in kernel tools/testing/selftests/arm64/Makefile | 2 +- tools/testing/selftests/arm64/mte/.gitignore | 6 + tools/testing/selftests/arm64/mte/Makefile | 29 ++ .../selftests/arm64/mte/check_buffer_fill.c | 476 ++++++++++++++++++ .../selftests/arm64/mte/check_child_memory.c | 195 +++++++ .../selftests/arm64/mte/check_ksm_options.c | 131 +++++ .../selftests/arm64/mte/check_mmap_options.c | 262 ++++++++++ .../arm64/mte/check_tags_inclusion.c | 183 +++++++ .../selftests/arm64/mte/check_user_mem.c | 118 +++++ .../selftests/arm64/mte/mte_common_util.c | 374 ++++++++++++++ .../selftests/arm64/mte/mte_common_util.h | 135 +++++ tools/testing/selftests/arm64/mte/mte_def.h | 26 + .../testing/selftests/arm64/mte/mte_helper.S | 116 +++++ 13 files changed, 2052 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/arm64/mte/.gitignore create mode 100644 tools/testing/selftests/arm64/mte/Makefile create mode 100644 tools/testing/selftests/arm64/mte/check_buffer_fill.c create mode 100644 tools/testing/selftests/arm64/mte/check_child_memory.c create mode 100644 tools/testing/selftests/arm64/mte/check_ksm_options.c create mode 100644 tools/testing/selftests/arm64/mte/check_mmap_options.c create mode 100644 tools/testing/selftests/arm64/mte/check_tags_inclusion.c create mode 100644 tools/testing/selftests/arm64/mte/check_user_mem.c create mode 100644 tools/testing/selftests/arm64/mte/mte_common_util.c create mode 100644 tools/testing/selftests/arm64/mte/mte_common_util.h create mode 100644 tools/testing/selftests/arm64/mte/mte_def.h create mode 100644 tools/testing/selftests/arm64/mte/mte_helper.S -- 2.17.1

4 years, 4 months

3
12
0 0

[REGRESSION] kselftest: next-20200921

by LKFT

## Kernel * kernel: 5.9.0-rc5 * git repo: ['https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git', 'https://gitlab.com/Linaro/lkft/mirrors/next/linux-next'] * git branch: master * git commit: b10b8ad862118bf42c28a98b0f067619aadcfb23 * git describe: next-20200921 * Test details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20200921 ## Regressions (compared to build next-20200918) x86: kselftest-vsyscall-mode-native: * proc_read kselftest-vsyscall-mode-none: * net_fib-onlink-tests.sh kselftest: * kvm_vmx_preemption_timer_test ## Fixes (compared to build next-20200918) juno-r2: kselftest: * cgroup_test_freezer x86: kselftest-vsyscall-mode-native: * pidfd_pidfd_test * tc-testing_tdc.sh kselftest-vsyscall-mode-none: * x86_fsgsbase_64 kselftest: * rtc_rtctest ## Summary ### hi6220-hikey, kselftest * total: 289 * pass: 130 * fail: 121 * skip: 38 * xfail: 0 ### i386, kselftest * total: 55 * pass: 26 * fail: 22 * skip: 7 * xfail: 0 ### juno-r2, kselftest * total: 289 * pass: 129 * fail: 122 * skip: 38 * xfail: 0 ### x86, kselftest * total: 314 * pass: 167 * fail: 113 * skip: 34 * xfail: 0 ### x86, kselftest-vsyscall-mode-native * total: 314 * pass: 166 * fail: 114 * skip: 34 * xfail: 0 ### x86, kselftest-vsyscall-mode-none * total: 313 * pass: 166 * fail: 113 * skip: 34 * xfail: 0 ## Environments * dragonboard-410c * hi6220-hikey * i386 * juno-r2 * juno-r2-compat * juno-r2-kasan * nxp-ls2088 * qemu_arm * qemu_arm64 * qemu_i386 * qemu_x86_64 * x15 * x86 * x86-kasan ## Suites * kselftest * kselftest-vsyscall-mode-native * kselftest-vsyscall-mode-none ## Failures ### hi6220-hikey, kselftest * bpf_test_verifier * bpf_test_tag * bpf_test_maps * bpf_test_lpm_map * bpf_test_progs * bpf_test_dev_cgroup * bpf_test_tcpbpf_user * bpf_get_cgroup_id_user * bpf_test_socket_cookie * bpf_test_netcnt * bpf_test_tcpnotify_user * bpf_test_sock_fields * bpf_test_sysctl * bpf_test_progs-no_alu32 * bpf_test_kmod.sh * bpf_test_sock_addr.sh * bpf_test_lwt_seg6local.sh * bpf_test_flow_dissector.sh * bpf_test_lwt_ip_encap.sh * bpf_test_tcp_check_syncookie.sh * bpf_test_tc_tunnel.sh * bpf_test_tc_edt.sh * bpf_test_xdping.sh * bpf_test_bpftool.sh * clone3_clone3_cap_checkpoint_restore * core_close_range_test * firmware_fw_run_tests.sh * ftrace_ftracetest * lkdtm_BUG.sh * lkdtm_WARNING.sh * lkdtm_WARNING_MESSAGE.sh * lkdtm_EXCEPTION.sh * lkdtm_CORRUPT_LIST_ADD.sh * lkdtm_CORRUPT_LIST_DEL.sh * lkdtm_STACK_GUARD_PAGE_LEADING.sh * lkdtm_STACK_GUARD_PAGE_TRAILING.sh * lkdtm_UNSET_SMEP.sh * lkdtm_CORRUPT_PAC.sh * lkdtm_UNALIGNED_LOAD_STORE_WRITE.sh * lkdtm_READ_AFTER_FREE.sh * lkdtm_READ_BUDDY_AFTER_FREE.sh * lkdtm_SLAB_FREE_DOUBLE.sh * lkdtm_SLAB_FREE_CROSS.sh * lkdtm_SLAB_FREE_PAGE.sh * lkdtm_EXEC_DATA.sh * lkdtm_EXEC_STACK.sh * lkdtm_EXEC_KMALLOC.sh * lkdtm_EXEC_VMALLOC.sh * lkdtm_EXEC_RODATA.sh * lkdtm_EXEC_USERSPACE.sh * lkdtm_EXEC_NULL.sh * lkdtm_ACCESS_USERSPACE.sh * lkdtm_ACCESS_NULL.sh * lkdtm_WRITE_RO.sh * lkdtm_WRITE_RO_AFTER_INIT.sh * lkdtm_WRITE_KERN.sh * lkdtm_REFCOUNT_INC_OVERFLOW.sh * lkdtm_REFCOUNT_ADD_OVERFLOW.sh * lkdtm_REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh * lkdtm_REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh * lkdtm_REFCOUNT_DEC_ZERO.sh * lkdtm_REFCOUNT_DEC_NEGATIVE.sh * lkdtm_REFCOUNT_DEC_AND_TEST_NEGATIVE.sh * lkdtm_REFCOUNT_SUB_AND_TEST_NEGATIVE.sh * lkdtm_REFCOUNT_INC_ZERO.sh * lkdtm_REFCOUNT_ADD_ZERO.sh * lkdtm_REFCOUNT_INC_SATURATED.sh * lkdtm_REFCOUNT_DEC_SATURATED.sh * lkdtm_REFCOUNT_ADD_SATURATED.sh * lkdtm_REFCOUNT_INC_NOT_ZERO_SATURATED.sh * lkdtm_REFCOUNT_ADD_NOT_ZERO_SATURATED.sh * lkdtm_REFCOUNT_DEC_AND_TEST_SATURATED.sh * lkdtm_REFCOUNT_SUB_AND_TEST_SATURATED.sh * lkdtm_USERCOPY_HEAP_SIZE_TO.sh * lkdtm_USERCOPY_HEAP_SIZE_FROM.sh * lkdtm_USERCOPY_HEAP_WHITELIST_TO.sh * lkdtm_USERCOPY_HEAP_WHITELIST_FROM.sh * lkdtm_USERCOPY_STACK_FRAME_TO.sh * lkdtm_USERCOPY_STACK_FRAME_FROM.sh * lkdtm_USERCOPY_STACK_BEYOND.sh * lkdtm_USERCOPY_KERNEL.sh * lkdtm_STACKLEAK_ERASING.sh * lkdtm_CFI_FORWARD_PROTO.sh * memory-hotplug_mem-on-off-test.sh * net_run_netsocktests * net_fib_tests.sh * net_fib-onlink-tests.sh * net_pmtu.sh * net_ip_defrag.sh * net_udpgso_bench.sh * net_fib_rule_tests.sh * net_psock_snd.sh * net_test_vxlan_under_vrf.sh * net_tcp_fastopen_backup_key.sh * net_l2tp.sh * net_fib_nexthops.sh * net_altnames.sh * net_icmp_redirect.sh * net_txtimestamp.sh * net_vrf-xfrm-tests.sh * net_devlink_port_split.py * netfilter_nft_nat.sh * netfilter_conntrack_icmp_related.sh * netfilter_nft_concat_range.sh * netfilter_nft_queue.sh * pidfd_pidfd_test * pidfd_pidfd_fdinfo_test * pidfd_pidfd_open_test * pidfd_pidfd_poll_test * proc_proc-fsconfig-hidepid * pstore_pstore_tests * ptrace_vmaccess * openat2_openat2_test * openat2_resolve_test * openat2_rename_attack_test * rtc_rtctest * seccomp_seccomp_bpf * seccomp_seccomp_benchmark * splice_short_splice_read.sh * sysctl_sysctl.sh * tc-testing_tdc.sh ### i386, kselftest * bpf_test_progs * bpf_test_dev_cgroup * bpf_test_tcpbpf_user * bpf_get_cgroup_id_user * bpf_test_socket_cookie * bpf_test_netcnt * bpf_test_tcpnotify_user * bpf_test_sock_fields * bpf_test_sysctl * bpf_test_progs-no_alu32 * bpf_test_sock_addr.sh * bpf_test_tunnel.sh * bpf_test_lwt_seg6local.sh * bpf_test_flow_dissector.sh * bpf_test_lwt_ip_encap.sh * bpf_test_tc_tunnel.sh * bpf_test_tc_edt.sh * bpf_test_xdping.sh * bpf_test_bpftool.sh * clone3_clone3_clear_sighand * clone3_clone3_cap_checkpoint_restore * core_close_range_test ### juno-r2, kselftest * bpf_test_verifier * bpf_test_tag * bpf_test_maps * bpf_test_lpm_map * bpf_test_progs * bpf_test_dev_cgroup * bpf_test_tcpbpf_user * bpf_get_cgroup_id_user * bpf_test_socket_cookie * bpf_test_netcnt * bpf_test_tcpnotify_user * bpf_test_sock_fields * bpf_test_sysctl * bpf_test_progs-no_alu32 * bpf_test_sock_addr.sh * bpf_test_tunnel.sh * bpf_test_lwt_seg6local.sh * bpf_test_flow_dissector.sh * bpf_test_lwt_ip_encap.sh * bpf_test_tcp_check_syncookie.sh * bpf_test_tc_tunnel.sh * bpf_test_tc_edt.sh * bpf_test_xdping.sh * bpf_test_bpftool.sh * clone3_clone3_cap_checkpoint_restore * core_close_range_test * cpufreq_main.sh * firmware_fw_run_tests.sh * ftrace_ftracetest * lkdtm_BUG.sh * lkdtm_WARNING.sh * lkdtm_WARNING_MESSAGE.sh * lkdtm_EXCEPTION.sh * lkdtm_CORRUPT_LIST_ADD.sh * lkdtm_CORRUPT_LIST_DEL.sh * lkdtm_STACK_GUARD_PAGE_LEADING.sh * lkdtm_STACK_GUARD_PAGE_TRAILING.sh * lkdtm_UNSET_SMEP.sh * lkdtm_CORRUPT_PAC.sh * lkdtm_UNALIGNED_LOAD_STORE_WRITE.sh * lkdtm_READ_AFTER_FREE.sh * lkdtm_READ_BUDDY_AFTER_FREE.sh * lkdtm_SLAB_FREE_DOUBLE.sh * lkdtm_SLAB_FREE_CROSS.sh * lkdtm_SLAB_FREE_PAGE.sh * lkdtm_EXEC_DATA.sh * lkdtm_EXEC_STACK.sh * lkdtm_EXEC_KMALLOC.sh * lkdtm_EXEC_VMALLOC.sh * lkdtm_EXEC_RODATA.sh * lkdtm_EXEC_USERSPACE.sh * lkdtm_EXEC_NULL.sh * lkdtm_ACCESS_USERSPACE.sh * lkdtm_ACCESS_NULL.sh * lkdtm_WRITE_RO.sh * lkdtm_WRITE_RO_AFTER_INIT.sh * lkdtm_WRITE_KERN.sh * lkdtm_REFCOUNT_INC_OVERFLOW.sh * lkdtm_REFCOUNT_ADD_OVERFLOW.sh * lkdtm_REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh * lkdtm_REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh * lkdtm_REFCOUNT_DEC_ZERO.sh * lkdtm_REFCOUNT_DEC_NEGATIVE.sh * lkdtm_REFCOUNT_DEC_AND_TEST_NEGATIVE.sh * lkdtm_REFCOUNT_SUB_AND_TEST_NEGATIVE.sh * lkdtm_REFCOUNT_INC_ZERO.sh * lkdtm_REFCOUNT_ADD_ZERO.sh * lkdtm_REFCOUNT_INC_SATURATED.sh * lkdtm_REFCOUNT_DEC_SATURATED.sh * lkdtm_REFCOUNT_ADD_SATURATED.sh * lkdtm_REFCOUNT_INC_NOT_ZERO_SATURATED.sh * lkdtm_REFCOUNT_ADD_NOT_ZERO_SATURATED.sh * lkdtm_REFCOUNT_DEC_AND_TEST_SATURATED.sh * lkdtm_REFCOUNT_SUB_AND_TEST_SATURATED.sh * lkdtm_USERCOPY_HEAP_SIZE_TO.sh * lkdtm_USERCOPY_HEAP_SIZE_FROM.sh * lkdtm_USERCOPY_HEAP_WHITELIST_TO.sh * lkdtm_USERCOPY_HEAP_WHITELIST_FROM.sh * lkdtm_USERCOPY_STACK_FRAME_TO.sh * lkdtm_USERCOPY_STACK_FRAME_FROM.sh * lkdtm_USERCOPY_STACK_BEYOND.sh * lkdtm_USERCOPY_KERNEL.sh * lkdtm_STACKLEAK_ERASING.sh * lkdtm_CFI_FORWARD_PROTO.sh * memory-hotplug_mem-on-off-test.sh * mincore_mincore_selftest * net_run_netsocktests * net_fib_tests.sh * net_fib-onlink-tests.sh * net_pmtu.sh * net_udpgso_bench.sh * net_fib_rule_tests.sh * net_psock_snd.sh * net_test_vxlan_under_vrf.sh * net_tcp_fastopen_backup_key.sh * net_l2tp.sh * net_fib_nexthops.sh * net_altnames.sh * net_icmp_redirect.sh * net_txtimestamp.sh * net_vrf-xfrm-tests.sh * net_devlink_port_split.py * netfilter_nft_nat.sh * netfilter_conntrack_icmp_related.sh * netfilter_nft_concat_range.sh * netfilter_nft_queue.sh * pidfd_pidfd_test * pidfd_pidfd_fdinfo_test * pidfd_pidfd_open_test * pidfd_pidfd_poll_test * proc_proc-fsconfig-hidepid * pstore_pstore_tests * ptrace_vmaccess * openat2_openat2_test * openat2_resolve_test * openat2_rename_attack_test * rtc_rtctest * seccomp_seccomp_bpf * seccomp_seccomp_benchmark * splice_short_splice_read.sh * sysctl_sysctl.sh * tc-testing_tdc.sh ### x86, kselftest * bpf_test_progs * bpf_test_dev_cgroup * bpf_test_tcpbpf_user * bpf_get_cgroup_id_user * bpf_test_socket_cookie * bpf_test_netcnt * bpf_test_tcpnotify_user * bpf_test_sock_fields * bpf_test_sysctl * bpf_test_progs-no_alu32 * bpf_test_sock_addr.sh * bpf_test_tunnel.sh * bpf_test_lwt_seg6local.sh * bpf_test_flow_dissector.sh * bpf_test_lwt_ip_encap.sh * bpf_test_tc_tunnel.sh * bpf_test_tc_edt.sh * bpf_test_xdping.sh * bpf_test_bpftool.sh * clone3_clone3_cap_checkpoint_restore * core_close_range_test * firmware_fw_run_tests.sh * ftrace_ftracetest * intel_pstate_run.sh * kvm_vmx_preemption_timer_test * kvm_debug_regs * lkdtm_BUG.sh * lkdtm_WARNING.sh * lkdtm_WARNING_MESSAGE.sh * lkdtm_EXCEPTION.sh * lkdtm_CORRUPT_LIST_ADD.sh * lkdtm_CORRUPT_LIST_DEL.sh * lkdtm_STACK_GUARD_PAGE_LEADING.sh * lkdtm_STACK_GUARD_PAGE_TRAILING.sh * lkdtm_UNSET_SMEP.sh * lkdtm_CORRUPT_PAC.sh * lkdtm_UNALIGNED_LOAD_STORE_WRITE.sh * lkdtm_READ_AFTER_FREE.sh * lkdtm_READ_BUDDY_AFTER_FREE.sh * lkdtm_SLAB_FREE_DOUBLE.sh * lkdtm_SLAB_FREE_CROSS.sh * lkdtm_SLAB_FREE_PAGE.sh * lkdtm_EXEC_DATA.sh * lkdtm_EXEC_STACK.sh * lkdtm_EXEC_KMALLOC.sh * lkdtm_EXEC_VMALLOC.sh * lkdtm_EXEC_RODATA.sh * lkdtm_EXEC_USERSPACE.sh * lkdtm_EXEC_NULL.sh * lkdtm_ACCESS_USERSPACE.sh * lkdtm_ACCESS_NULL.sh * lkdtm_WRITE_RO.sh * lkdtm_WRITE_RO_AFTER_INIT.sh * lkdtm_WRITE_KERN.sh * lkdtm_REFCOUNT_INC_OVERFLOW.sh * lkdtm_REFCOUNT_ADD_OVERFLOW.sh * lkdtm_REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh * lkdtm_REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh * lkdtm_REFCOUNT_DEC_ZERO.sh * lkdtm_REFCOUNT_DEC_NEGATIVE.sh * lkdtm_REFCOUNT_DEC_AND_TEST_NEGATIVE.sh * lkdtm_REFCOUNT_SUB_AND_TEST_NEGATIVE.sh * lkdtm_REFCOUNT_INC_ZERO.sh * lkdtm_REFCOUNT_ADD_ZERO.sh * lkdtm_REFCOUNT_INC_SATURATED.sh * lkdtm_REFCOUNT_DEC_SATURATED.sh * lkdtm_REFCOUNT_ADD_SATURATED.sh * lkdtm_REFCOUNT_INC_NOT_ZERO_SATURATED.sh * lkdtm_REFCOUNT_ADD_NOT_ZERO_SATURATED.sh * lkdtm_REFCOUNT_DEC_AND_TEST_SATURATED.sh * lkdtm_REFCOUNT_SUB_AND_TEST_SATURATED.sh * lkdtm_USERCOPY_HEAP_SIZE_TO.sh * lkdtm_USERCOPY_HEAP_SIZE_FROM.sh * lkdtm_USERCOPY_HEAP_WHITELIST_TO.sh * lkdtm_USERCOPY_HEAP_WHITELIST_FROM.sh * lkdtm_USERCOPY_STACK_FRAME_TO.sh * lkdtm_USERCOPY_STACK_FRAME_FROM.sh * lkdtm_USERCOPY_STACK_BEYOND.sh * lkdtm_USERCOPY_KERNEL.sh * lkdtm_STACKLEAK_ERASING.sh * lkdtm_CFI_FORWARD_PROTO.sh * mincore_mincore_selftest * mqueue_mq_perf_tests * net_run_netsocktests * net_xfrm_policy.sh * net_fib_tests.sh * net_fib-onlink-tests.sh * net_pmtu.sh * net_udpgso_bench.sh * net_psock_snd.sh * net_test_vxlan_under_vrf.sh * net_l2tp.sh * net_traceroute.sh * net_altnames.sh * net_icmp_redirect.sh * net_txtimestamp.sh * net_vrf-xfrm-tests.sh * net_devlink_port_split.py * netfilter_nft_concat_range.sh * netfilter_nft_queue.sh * pidfd_pidfd_open_test * pidfd_pidfd_poll_test * proc_proc-fsconfig-hidepid * pstore_pstore_tests * ptrace_vmaccess * openat2_openat2_test * openat2_resolve_test * openat2_rename_attack_test * seccomp_seccomp_bpf * seccomp_seccomp_benchmark * splice_short_splice_read.sh * vm_run_vmtests * x86_syscall_numbering_64 ### x86, kselftest-vsyscall-mode-native * bpf_test_progs * bpf_test_dev_cgroup * bpf_test_tcpbpf_user * bpf_get_cgroup_id_user * bpf_test_socket_cookie * bpf_test_netcnt * bpf_test_tcpnotify_user * bpf_test_sock_fields * bpf_test_sysctl * bpf_test_progs-no_alu32 * bpf_test_sock_addr.sh * bpf_test_tunnel.sh * bpf_test_lwt_seg6local.sh * bpf_test_flow_dissector.sh * bpf_test_lwt_ip_encap.sh * bpf_test_tc_tunnel.sh * bpf_test_tc_edt.sh * bpf_test_xdping.sh * bpf_test_bpftool.sh * clone3_clone3_cap_checkpoint_restore * core_close_range_test * firmware_fw_run_tests.sh * ftrace_ftracetest * intel_pstate_run.sh * kvm_debug_regs * lkdtm_BUG.sh * lkdtm_WARNING.sh * lkdtm_WARNING_MESSAGE.sh * lkdtm_EXCEPTION.sh * lkdtm_CORRUPT_LIST_ADD.sh * lkdtm_CORRUPT_LIST_DEL.sh * lkdtm_STACK_GUARD_PAGE_LEADING.sh * lkdtm_STACK_GUARD_PAGE_TRAILING.sh * lkdtm_UNSET_SMEP.sh * lkdtm_CORRUPT_PAC.sh * lkdtm_UNALIGNED_LOAD_STORE_WRITE.sh * lkdtm_READ_AFTER_FREE.sh * lkdtm_READ_BUDDY_AFTER_FREE.sh * lkdtm_SLAB_FREE_DOUBLE.sh * lkdtm_SLAB_FREE_CROSS.sh * lkdtm_SLAB_FREE_PAGE.sh * lkdtm_EXEC_DATA.sh * lkdtm_EXEC_STACK.sh * lkdtm_EXEC_KMALLOC.sh * lkdtm_EXEC_VMALLOC.sh * lkdtm_EXEC_RODATA.sh * lkdtm_EXEC_USERSPACE.sh * lkdtm_EXEC_NULL.sh * lkdtm_ACCESS_USERSPACE.sh * lkdtm_ACCESS_NULL.sh * lkdtm_WRITE_RO.sh * lkdtm_WRITE_RO_AFTER_INIT.sh * lkdtm_WRITE_KERN.sh * lkdtm_REFCOUNT_INC_OVERFLOW.sh * lkdtm_REFCOUNT_ADD_OVERFLOW.sh * lkdtm_REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh * lkdtm_REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh * lkdtm_REFCOUNT_DEC_ZERO.sh * lkdtm_REFCOUNT_DEC_NEGATIVE.sh * lkdtm_REFCOUNT_DEC_AND_TEST_NEGATIVE.sh * lkdtm_REFCOUNT_SUB_AND_TEST_NEGATIVE.sh * lkdtm_REFCOUNT_INC_ZERO.sh * lkdtm_REFCOUNT_ADD_ZERO.sh * lkdtm_REFCOUNT_INC_SATURATED.sh * lkdtm_REFCOUNT_DEC_SATURATED.sh * lkdtm_REFCOUNT_ADD_SATURATED.sh * lkdtm_REFCOUNT_INC_NOT_ZERO_SATURATED.sh * lkdtm_REFCOUNT_ADD_NOT_ZERO_SATURATED.sh * lkdtm_REFCOUNT_DEC_AND_TEST_SATURATED.sh * lkdtm_REFCOUNT_SUB_AND_TEST_SATURATED.sh * lkdtm_USERCOPY_HEAP_SIZE_TO.sh * lkdtm_USERCOPY_HEAP_SIZE_FROM.sh * lkdtm_USERCOPY_HEAP_WHITELIST_TO.sh * lkdtm_USERCOPY_HEAP_WHITELIST_FROM.sh * lkdtm_USERCOPY_STACK_FRAME_TO.sh * lkdtm_USERCOPY_STACK_FRAME_FROM.sh * lkdtm_USERCOPY_STACK_BEYOND.sh * lkdtm_USERCOPY_KERNEL.sh * lkdtm_STACKLEAK_ERASING.sh * lkdtm_CFI_FORWARD_PROTO.sh * mincore_mincore_selftest * mqueue_mq_perf_tests * net_run_netsocktests * net_xfrm_policy.sh * net_fib_tests.sh * net_fib-onlink-tests.sh * net_pmtu.sh * net_udpgso_bench.sh * net_psock_snd.sh * net_test_vxlan_under_vrf.sh * net_l2tp.sh * net_traceroute.sh * net_altnames.sh * net_icmp_redirect.sh * net_txtimestamp.sh * net_vrf-xfrm-tests.sh * net_devlink_port_split.py * netfilter_nft_concat_range.sh * netfilter_nft_queue.sh * pidfd_pidfd_open_test * pidfd_pidfd_poll_test * proc_read * proc_proc-fsconfig-hidepid * pstore_pstore_tests * ptrace_vmaccess * openat2_openat2_test * openat2_resolve_test * openat2_rename_attack_test * rtc_rtctest * seccomp_seccomp_bpf * seccomp_seccomp_benchmark * splice_short_splice_read.sh * vm_run_vmtests * x86_syscall_numbering_64 ### x86, kselftest-vsyscall-mode-none * bpf_test_progs * bpf_test_dev_cgroup * bpf_test_tcpbpf_user * bpf_get_cgroup_id_user * bpf_test_socket_cookie * bpf_test_netcnt * bpf_test_tcpnotify_user * bpf_test_sock_fields * bpf_test_sysctl * bpf_test_progs-no_alu32 * bpf_test_sock_addr.sh * bpf_test_tunnel.sh * bpf_test_lwt_seg6local.sh * bpf_test_flow_dissector.sh * bpf_test_lwt_ip_encap.sh * bpf_test_tc_tunnel.sh * bpf_test_tc_edt.sh * bpf_test_xdping.sh * bpf_test_bpftool.sh * clone3_clone3_cap_checkpoint_restore * core_close_range_test * firmware_fw_run_tests.sh * ftrace_ftracetest * intel_pstate_run.sh * kvm_vmx_preemption_timer_test * kvm_debug_regs * lkdtm_BUG.sh * lkdtm_WARNING.sh * lkdtm_WARNING_MESSAGE.sh * lkdtm_EXCEPTION.sh * lkdtm_CORRUPT_LIST_ADD.sh * lkdtm_CORRUPT_LIST_DEL.sh * lkdtm_STACK_GUARD_PAGE_LEADING.sh * lkdtm_STACK_GUARD_PAGE_TRAILING.sh * lkdtm_UNSET_SMEP.sh * lkdtm_CORRUPT_PAC.sh * lkdtm_UNALIGNED_LOAD_STORE_WRITE.sh * lkdtm_READ_AFTER_FREE.sh * lkdtm_READ_BUDDY_AFTER_FREE.sh * lkdtm_SLAB_FREE_DOUBLE.sh * lkdtm_SLAB_FREE_CROSS.sh * lkdtm_SLAB_FREE_PAGE.sh * lkdtm_EXEC_DATA.sh * lkdtm_EXEC_STACK.sh * lkdtm_EXEC_KMALLOC.sh * lkdtm_EXEC_VMALLOC.sh * lkdtm_EXEC_RODATA.sh * lkdtm_EXEC_USERSPACE.sh * lkdtm_EXEC_NULL.sh * lkdtm_ACCESS_USERSPACE.sh * lkdtm_ACCESS_NULL.sh * lkdtm_WRITE_RO.sh * lkdtm_WRITE_RO_AFTER_INIT.sh * lkdtm_WRITE_KERN.sh * lkdtm_REFCOUNT_INC_OVERFLOW.sh * lkdtm_REFCOUNT_ADD_OVERFLOW.sh * lkdtm_REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh * lkdtm_REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh * lkdtm_REFCOUNT_DEC_ZERO.sh * lkdtm_REFCOUNT_DEC_NEGATIVE.sh * lkdtm_REFCOUNT_DEC_AND_TEST_NEGATIVE.sh * lkdtm_REFCOUNT_SUB_AND_TEST_NEGATIVE.sh * lkdtm_REFCOUNT_INC_ZERO.sh * lkdtm_REFCOUNT_ADD_ZERO.sh * lkdtm_REFCOUNT_INC_SATURATED.sh * lkdtm_REFCOUNT_DEC_SATURATED.sh * lkdtm_REFCOUNT_ADD_SATURATED.sh * lkdtm_REFCOUNT_INC_NOT_ZERO_SATURATED.sh * lkdtm_REFCOUNT_ADD_NOT_ZERO_SATURATED.sh * lkdtm_REFCOUNT_DEC_AND_TEST_SATURATED.sh * lkdtm_REFCOUNT_SUB_AND_TEST_SATURATED.sh * lkdtm_USERCOPY_HEAP_SIZE_TO.sh * lkdtm_USERCOPY_HEAP_SIZE_FROM.sh * lkdtm_USERCOPY_HEAP_WHITELIST_TO.sh * lkdtm_USERCOPY_HEAP_WHITELIST_FROM.sh * lkdtm_USERCOPY_STACK_FRAME_TO.sh * lkdtm_USERCOPY_STACK_FRAME_FROM.sh * lkdtm_USERCOPY_STACK_BEYOND.sh * lkdtm_USERCOPY_KERNEL.sh * lkdtm_STACKLEAK_ERASING.sh * lkdtm_CFI_FORWARD_PROTO.sh * mincore_mincore_selftest * mqueue_mq_perf_tests * net_run_netsocktests * net_xfrm_policy.sh * net_fib_tests.sh * net_fib-onlink-tests.sh * net_pmtu.sh * net_udpgso_bench.sh * net_psock_snd.sh * net_test_vxlan_under_vrf.sh * net_l2tp.sh * net_traceroute.sh * net_icmp_redirect.sh * net_txtimestamp.sh * net_vrf-xfrm-tests.sh * net_devlink_port_split.py * netfilter_nft_concat_range.sh * netfilter_nft_queue.sh * pidfd_pidfd_open_test * pidfd_pidfd_poll_test * proc_proc-fsconfig-hidepid * pstore_pstore_tests * ptrace_vmaccess * openat2_openat2_test * openat2_resolve_test * openat2_rename_attack_test * rtc_rtctest * seccomp_seccomp_bpf * seccomp_seccomp_benchmark * splice_short_splice_read.sh * vm_run_vmtests * x86_syscall_numbering_64 ## Skips ### hi6220-hikey, kselftest * arm64_sve-ptrace * arm64_sve-probe-vls * bpf_test_xdp_veth.sh * bpf_test_bpftool_metadata.sh * cgroup_test_memcontrol * cgroup_test_kmem * cgroup_test_core * cgroup_test_stress.sh * efivarfs_efivarfs.sh * fpu_run_test_fpu.sh * intel_pstate_run.sh * ir_ir_loopback.sh * livepatch_test-livepatch.sh * livepatch_test-callbacks.sh * livepatch_test-shadow-vars.sh * livepatch_test-state.sh * livepatch_test-ftrace.sh * lkdtm_PANIC.sh * lkdtm_LOOP.sh * lkdtm_EXHAUST_STACK.sh * lkdtm_CORRUPT_STACK.sh * lkdtm_CORRUPT_STACK_STRONG.sh * lkdtm_DOUBLE_FAULT.sh * lkdtm_OVERWRITE_ALLOCATION.sh * lkdtm_WRITE_AFTER_FREE.sh * lkdtm_WRITE_BUDDY_AFTER_FREE.sh * lkdtm_SOFTLOCKUP.sh * lkdtm_HARDLOCKUP.sh * lkdtm_SPINLOCKUP.sh * lkdtm_HUNG_TASK.sh * lkdtm_REFCOUNT_TIMING.sh * lkdtm_ATOMIC_TIMING.sh * net_xfrm_policy.sh * netfilter_ipvs.sh * netfilter_nft_conntrack_helper.sh * netfilter_nft_meta.sh * proc_proc-pid-vm * pstore_pstore_post_reboot_tests ### i386, kselftest * bpf_test_xdp_veth.sh * bpf_test_bpftool_metadata.sh * cgroup_test_memcontrol * cgroup_test_kmem * cgroup_test_core * cgroup_test_stress.sh * efivarfs_efivarfs.sh ### juno-r2, kselftest * arm64_sve-ptrace * arm64_sve-probe-vls * bpf_test_xdp_veth.sh * bpf_test_bpftool_metadata.sh * cgroup_test_memcontrol * cgroup_test_kmem * cgroup_test_core * cgroup_test_stress.sh * efivarfs_efivarfs.sh * fpu_run_test_fpu.sh * intel_pstate_run.sh * ir_ir_loopback.sh * livepatch_test-livepatch.sh * livepatch_test-callbacks.sh * livepatch_test-shadow-vars.sh * livepatch_test-state.sh * livepatch_test-ftrace.sh * lkdtm_PANIC.sh * lkdtm_LOOP.sh * lkdtm_EXHAUST_STACK.sh * lkdtm_CORRUPT_STACK.sh * lkdtm_CORRUPT_STACK_STRONG.sh * lkdtm_DOUBLE_FAULT.sh * lkdtm_OVERWRITE_ALLOCATION.sh * lkdtm_WRITE_AFTER_FREE.sh * lkdtm_WRITE_BUDDY_AFTER_FREE.sh * lkdtm_SOFTLOCKUP.sh * lkdtm_HARDLOCKUP.sh * lkdtm_SPINLOCKUP.sh * lkdtm_HUNG_TASK.sh * lkdtm_REFCOUNT_TIMING.sh * lkdtm_ATOMIC_TIMING.sh * net_xfrm_policy.sh * netfilter_ipvs.sh * netfilter_nft_conntrack_helper.sh * netfilter_nft_meta.sh * proc_proc-pid-vm * pstore_pstore_post_reboot_tests ### x86, kselftest * bpf_test_xdp_veth.sh * bpf_test_bpftool_metadata.sh * cgroup_test_memcontrol * cgroup_test_kmem * cgroup_test_core * cgroup_test_stress.sh * efivarfs_efivarfs.sh * fpu_run_test_fpu.sh * ir_ir_loopback.sh * kexec_test_kexec_load.sh * kexec_test_kexec_file_load.sh * kvm_mmio_warning_test * kvm_svm_vmcall_test * lkdtm_PANIC.sh * lkdtm_LOOP.sh * lkdtm_EXHAUST_STACK.sh * lkdtm_CORRUPT_STACK.sh * lkdtm_CORRUPT_STACK_STRONG.sh * lkdtm_DOUBLE_FAULT.sh * lkdtm_OVERWRITE_ALLOCATION.sh * lkdtm_WRITE_AFTER_FREE.sh * lkdtm_WRITE_BUDDY_AFTER_FREE.sh * lkdtm_SOFTLOCKUP.sh * lkdtm_HARDLOCKUP.sh * lkdtm_SPINLOCKUP.sh * lkdtm_HUNG_TASK.sh * lkdtm_REFCOUNT_TIMING.sh * lkdtm_ATOMIC_TIMING.sh * netfilter_ipvs.sh * netfilter_nft_conntrack_helper.sh * netfilter_nft_meta.sh * pstore_pstore_post_reboot_tests * tpm2_test_smoke.sh * tpm2_test_space.sh ### x86, kselftest-vsyscall-mode-native * bpf_test_xdp_veth.sh * bpf_test_bpftool_metadata.sh * cgroup_test_memcontrol * cgroup_test_kmem * cgroup_test_core * cgroup_test_stress.sh * efivarfs_efivarfs.sh * fpu_run_test_fpu.sh * ir_ir_loopback.sh * kexec_test_kexec_load.sh * kexec_test_kexec_file_load.sh * kvm_mmio_warning_test * kvm_svm_vmcall_test * lkdtm_PANIC.sh * lkdtm_LOOP.sh * lkdtm_EXHAUST_STACK.sh * lkdtm_CORRUPT_STACK.sh * lkdtm_CORRUPT_STACK_STRONG.sh * lkdtm_DOUBLE_FAULT.sh * lkdtm_OVERWRITE_ALLOCATION.sh * lkdtm_WRITE_AFTER_FREE.sh * lkdtm_WRITE_BUDDY_AFTER_FREE.sh * lkdtm_SOFTLOCKUP.sh * lkdtm_HARDLOCKUP.sh * lkdtm_SPINLOCKUP.sh * lkdtm_HUNG_TASK.sh * lkdtm_REFCOUNT_TIMING.sh * lkdtm_ATOMIC_TIMING.sh * netfilter_ipvs.sh * netfilter_nft_conntrack_helper.sh * netfilter_nft_meta.sh * pstore_pstore_post_reboot_tests * tpm2_test_smoke.sh * tpm2_test_space.sh ### x86, kselftest-vsyscall-mode-none * bpf_test_xdp_veth.sh * bpf_test_bpftool_metadata.sh * cgroup_test_memcontrol * cgroup_test_kmem * cgroup_test_core * cgroup_test_stress.sh * efivarfs_efivarfs.sh * fpu_run_test_fpu.sh * ir_ir_loopback.sh * kexec_test_kexec_load.sh * kexec_test_kexec_file_load.sh * kvm_mmio_warning_test * kvm_svm_vmcall_test * lkdtm_PANIC.sh * lkdtm_LOOP.sh * lkdtm_EXHAUST_STACK.sh * lkdtm_CORRUPT_STACK.sh * lkdtm_CORRUPT_STACK_STRONG.sh * lkdtm_DOUBLE_FAULT.sh * lkdtm_OVERWRITE_ALLOCATION.sh * lkdtm_WRITE_AFTER_FREE.sh * lkdtm_WRITE_BUDDY_AFTER_FREE.sh * lkdtm_SOFTLOCKUP.sh * lkdtm_HARDLOCKUP.sh * lkdtm_SPINLOCKUP.sh * lkdtm_HUNG_TASK.sh * lkdtm_REFCOUNT_TIMING.sh * lkdtm_ATOMIC_TIMING.sh * netfilter_ipvs.sh * netfilter_nft_conntrack_helper.sh * netfilter_nft_meta.sh * pstore_pstore_post_reboot_tests * tpm2_test_smoke.sh * tpm2_test_space.sh -- Linaro LKFT https://lkft.linaro.org

4 years, 4 months

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[RFC PATCH 00/11] Introduce Simple atomic and non-atomic counters

by Shuah Khan

This patch series is a result of discussion at the refcount_t BOF the Linux Plumbers Conference. In this discussion, we identifed a need for looking closely and investigating atomic_t usages in the kernel when it is used strictly as a counter wothout it controlling object lifetimes and state changes. There are a number of atomic_t usages in the kernel where atomic_t api is used strictly for counting and not for managing object lifetime. In some cases, atomic_t might not even be needed. The purpose of these counters is twofold: 1. clearly differentiate atomic_t counters from atomic_t usages that guard object lifetimes, hence prone to overflow and underflow errors. It allows tools that scan for underflow and overflow on atomic_t usages to detect overflow and underflows to scan just the cases that are prone to errors. 2. provides non-atomic counters for cases where atomic isn't necessary. Simple atomic and non-atomic counters api provides interfaces for simple atomic and non-atomic counters that just count, and don't guard resource lifetimes. Counters will wrap around to 0 when it overflows and should not be used to guard resource lifetimes, device usage and open counts that control state changes, and pm states. Using counter_atomic to guard lifetimes could lead to use-after free when it overflows and undefined behavior when used to manage state changes and device usage/open states. This patch series introduces Simple atomic and non-atomic counters. Counter atomic ops leverage atomic_t and provide a sub-set of atomic_t ops. In addition this patch series converts a few drivers to use the new api. The following criteria is used for select variables for conversion: 1. Variable doesn't guard object lifetimes, manage state changes e.g: device usage counts, device open counts, and pm states. 2. Variable is used for stats and counters. 3. The conversion doesn't change the overflow behavior. Please review and let me know if non-stat conversions e.g: probe_count, deferred_trigger_count make sense. Shuah Khan (11): counters: Introduce counter and counter_atomic counters selftests:lib:test_counters: add new test for counters drivers/base: convert deferred_trigger_count and probe_count to counter_atomic drivers/base/devcoredump: convert devcd_count to counter_atomic drivers/acpi: convert seqno counter_atomic drivers/acpi/apei: convert seqno counter_atomic drivers/android/binder: convert stats, transaction_log to counter_atomic drivers/base/test/test_async_driver_probe: convert to use counter_atomic drivers/char/ipmi: convert stats to use counter_atomic drivers/misc/vmw_vmci: convert num guest devices counter to counter_atomic drivers/edac: convert pci counters to counter_atomic Documentation/core-api/counters.rst | 158 +++++++++ MAINTAINERS | 8 + drivers/acpi/acpi_extlog.c | 5 +- drivers/acpi/apei/ghes.c | 5 +- drivers/android/binder.c | 41 +-- drivers/android/binder_internal.h | 3 +- drivers/base/dd.c | 19 +- drivers/base/devcoredump.c | 5 +- drivers/base/test/test_async_driver_probe.c | 23 +- drivers/char/ipmi/ipmi_msghandler.c | 9 +- drivers/char/ipmi/ipmi_si_intf.c | 9 +- drivers/edac/edac_pci.h | 5 +- drivers/edac/edac_pci_sysfs.c | 28 +- drivers/misc/vmw_vmci/vmci_guest.c | 9 +- include/linux/counters.h | 343 +++++++++++++++++++ lib/Kconfig | 10 + lib/Makefile | 1 + lib/test_counters.c | 283 +++++++++++++++ tools/testing/selftests/lib/Makefile | 1 + tools/testing/selftests/lib/config | 1 + tools/testing/selftests/lib/test_counters.sh | 5 + 21 files changed, 897 insertions(+), 74 deletions(-) create mode 100644 Documentation/core-api/counters.rst create mode 100644 include/linux/counters.h create mode 100644 lib/test_counters.c create mode 100755 tools/testing/selftests/lib/test_counters.sh -- 2.25.1

4 years, 4 months

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