February 2023 - Linux-kselftest-mirror

kselftest/next kselftest-lib: 6 runs, 4 regressions (v6.2-rc5-40-g0eb15a47bf43)

by kernelci.org bot

kselftest/next kselftest-lib: 6 runs, 4 regressions (v6.2-rc5-40-g0eb15a47bf43) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 meson-g12b-a311d-khadas-vim3 | arm64 | lab-collabora | gcc-10 | defconfig+kselftest | 1 meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-10 | defconfig+kselftest | 1 mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/job/kselftest/branch/next/kernel/v6.2-rc5-40-g0eb… Test: kselftest-lib Tree: kselftest Branch: next Describe: v6.2-rc5-40-g0eb15a47bf43 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: 0eb15a47bf437a268b69ab1a1a45fdf1f609b69f Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/63ec0fb91ca4c907f68c8667 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig+kselftest Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.2-rc5-40-g0eb15a47bf43/arm/… HTML log: https://storage.kernelci.org//kselftest/next/v6.2-rc5-40-g0eb15a47bf43/arm/… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023021… * kselftest-lib.login: https://kernelci.org/test/case/id/63ec0fb91ca4c907f68c8668 failing since 49 days (last pass: v6.1-rc1-24-gd5ba85d6d8be, first fail: v6.2-rc1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ meson-g12b-a311d-khadas-vim3 | arm64 | lab-collabora | gcc-10 | defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/63ec1581a1f7d3457d8c86ba Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.2-rc5-40-g0eb15a47bf43/arm6… HTML log: https://storage.kernelci.org//kselftest/next/v6.2-rc5-40-g0eb15a47bf43/arm6… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023021… * kselftest-lib.login: https://kernelci.org/test/case/id/63ec1581a1f7d3457d8c86bb failing since 120 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-10 | defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/63ec1ff717a3f477218c8642 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.2-rc5-40-g0eb15a47bf43/arm6… HTML log: https://storage.kernelci.org//kselftest/next/v6.2-rc5-40-g0eb15a47bf43/arm6… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023021… * kselftest-lib.login: https://kernelci.org/test/case/id/63ec1ff717a3f477218c8643 failing since 117 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1-1-gde3ee3f63400a) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/63ec149346ef4acf558c863d Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.2-rc5-40-g0eb15a47bf43/arm6… HTML log: https://storage.kernelci.org//kselftest/next/v6.2-rc5-40-g0eb15a47bf43/arm6… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023021… * kselftest-lib.login: https://kernelci.org/test/case/id/63ec149346ef4acf558c863e failing since 120 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1)

1 year, 5 months

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kselftest/next kselftest-cpufreq: 6 runs, 2 regressions (v6.2-rc5-40-g0eb15a47bf43)

by kernelci.org bot

kselftest/next kselftest-cpufreq: 6 runs, 2 regressions (v6.2-rc5-40-g0eb15a47bf43) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-10 | defconfig+kselftest | 1 mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/job/kselftest/branch/next/kernel/v6.2-rc5-40-g0eb… Test: kselftest-cpufreq Tree: kselftest Branch: next Describe: v6.2-rc5-40-g0eb15a47bf43 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: 0eb15a47bf437a268b69ab1a1a45fdf1f609b69f Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-10 | defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/63ec1e7c6660673b878c8643 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.2-rc5-40-g0eb15a47bf43/arm6… HTML log: https://storage.kernelci.org//kselftest/next/v6.2-rc5-40-g0eb15a47bf43/arm6… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023021… * kselftest-cpufreq.login: https://kernelci.org/test/case/id/63ec1e7c6660673b878c8644 failing since 117 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1-1-gde3ee3f63400a) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/63ec1477fd6eadcc5e8c863f Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.2-rc5-40-g0eb15a47bf43/arm6… HTML log: https://storage.kernelci.org//kselftest/next/v6.2-rc5-40-g0eb15a47bf43/arm6… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023021… * kselftest-cpufreq.login: https://kernelci.org/test/case/id/63ec1477fd6eadcc5e8c8640 failing since 120 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1)

1 year, 5 months

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kselftest/next build: 8 builds: 0 failed, 8 passed, 3 warnings (v6.2-rc5-40-g0eb15a47bf43)

by kernelci.org bot

kselftest/next build: 8 builds: 0 failed, 8 passed, 3 warnings (v6.2-rc5-40-g0eb15a47bf43) Full Build Summary: https://kernelci.org/build/kselftest/branch/next/kernel/v6.2-rc5-40-g0eb15a… Tree: kselftest Branch: next Git Describe: v6.2-rc5-40-g0eb15a47bf43 Git Commit: 0eb15a47bf437a268b69ab1a1a45fdf1f609b69f Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git Built: 4 unique architectures Warnings Detected: arm64: arm: i386: x86_64: x86_64_defconfig+kselftest (clang-16): 3 warnings Warnings summary: 1 vmlinux.o: warning: objtool: set_ftrace_ops_ro+0x39: relocation to !ENDBR: .text+0x144456 1 vmlinux.o: warning: objtool: set_ftrace_ops_ro+0x23: relocation to !ENDBR: .text+0x1445cb 1 vmlinux.o: warning: objtool: lkdtm_UNSET_SMEP+0xca: relocation to !ENDBR: native_write_cr4+0x4 ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- defconfig+kselftest (arm64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig+kselftest (arm64, clang-16) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig+kselftest+arm64-chromebook (arm64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig+kselftest+arm64-chromebook (arm64, clang-16) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- i386_defconfig+kselftest (i386, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v7_defconfig+kselftest (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig+kselftest (x86_64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig+kselftest (x86_64, clang-16) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: vmlinux.o: warning: objtool: set_ftrace_ops_ro+0x23: relocation to !ENDBR: .text+0x1445cb vmlinux.o: warning: objtool: set_ftrace_ops_ro+0x39: relocation to !ENDBR: .text+0x144456 vmlinux.o: warning: objtool: lkdtm_UNSET_SMEP+0xca: relocation to !ENDBR: native_write_cr4+0x4 --- For more info write to <info(a)kernelci.org>

1 year, 5 months

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[PATCH] selftests/user_events: add a note about user_events.h dependency

by Shuah Khan

This test depends on <linux/user_events.h> exported in uapi The following commit removed user_events.h out of uapi: commit 5cfff569cab8 ("tracing: Move user_events.h temporarily out of include/uapi") This test will not compile until user_events.h is added back to uapi. Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> --- tools/testing/selftests/user_events/Makefile | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/tools/testing/selftests/user_events/Makefile b/tools/testing/selftests/user_events/Makefile index 87d54c640068..6b512b86aec3 100644 --- a/tools/testing/selftests/user_events/Makefile +++ b/tools/testing/selftests/user_events/Makefile @@ -2,6 +2,14 @@ CFLAGS += -Wl,-no-as-needed -Wall $(KHDR_INCLUDES) LDLIBS += -lrt -lpthread -lm +# Note: +# This test depends on <linux/user_events.h> exported in uapi +# The following commit removed user_events.h out of uapi: +# commit 5cfff569cab8bf544bab62c911c5d6efd5af5e05 +# tracing: Move user_events.h temporarily out of include/uapi +# This test will not compile until user_events.h is added +# back to uapi. + TEST_GEN_PROGS = ftrace_test dyn_test perf_test TEST_FILES := settings -- 2.37.2

1 year, 5 months

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[PATCH 0/4] selftests/resctrl: Fixes to error handling logic

by Ilpo Järvinen

This series fixes a few cleanup/error handling problems. Fenghua Yu (1): selftests/resctrl: Return error if memory is not allocated Ilpo Järvinen (3): selftests/resctrl: Move ->setup() call outside of test specific branches selftests/resctrl: Allow ->setup() to return errors selftests/resctrl: Check for return value after write_schemata() tools/testing/selftests/resctrl/cache.c | 4 +++- tools/testing/selftests/resctrl/cat_test.c | 2 +- tools/testing/selftests/resctrl/cmt_test.c | 2 +- tools/testing/selftests/resctrl/fill_buf.c | 2 ++ tools/testing/selftests/resctrl/mba_test.c | 9 ++++++-- tools/testing/selftests/resctrl/mbm_test.c | 2 +- tools/testing/selftests/resctrl/resctrl.h | 2 ++ tools/testing/selftests/resctrl/resctrl_val.c | 21 +++++++------------ 8 files changed, 25 insertions(+), 19 deletions(-) -- 2.30.2

1 year, 5 months

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[PATCH 0/4] selftests/resctrl: Small cleanups

by Ilpo Järvinen

Fenghua Yu (1): selftests/resctrl: Don't hard code divisor in MBM results Ilpo Järvinen (2): selftests/resctrl: Change initialize_llc_perf() return type to void selftests/resctrl: Use remount_resctrlfs() consistently with boolean Signed-off-by: Fenghua Yu (1): selftests/resctrl: Change name from CBM_MASK_PATH to INFO_PATH tools/testing/selftests/resctrl/cache.c | 11 +++-------- tools/testing/selftests/resctrl/cat_test.c | 2 +- tools/testing/selftests/resctrl/cmt_test.c | 7 +++---- tools/testing/selftests/resctrl/mba_test.c | 2 +- tools/testing/selftests/resctrl/mbm_test.c | 6 +++--- tools/testing/selftests/resctrl/resctrl.h | 4 ++-- tools/testing/selftests/resctrl/resctrlfs.c | 2 +- 7 files changed, 14 insertions(+), 20 deletions(-) -- 2.30.2

1 year, 5 months

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[PATCH bpf-next 1/2] bpf: use canonical ftrace path

by Ross Zwisler

The canonical location for the tracefs filesystem is at /sys/kernel/tracing. But, from Documentation/trace/ftrace.rst: Before 4.1, all ftrace tracing control files were within the debugfs file system, which is typically located at /sys/kernel/debug/tracing. For backward compatibility, when mounting the debugfs file system, the tracefs file system will be automatically mounted at: /sys/kernel/debug/tracing Many comments and samples in the bpf code still refer to this older debugfs path, so let's update them to avoid confusion. There are a few spots where the bpf code explicitly checks both tracefs and debugfs (tools/bpf/bpftool/tracelog.c and tools/lib/api/fs/fs.c) and I've left those alone so that the tools can continue to work with both paths. Signed-off-by: Ross Zwisler <zwisler(a)google.com> Acked-by: Michael S. Tsirkin <mst(a)redhat.com> --- [ Per Alexei's request, resending towards bpf-next ] include/uapi/linux/bpf.h | 8 ++++---- samples/bpf/cpustat_kern.c | 4 ++-- samples/bpf/hbm.c | 4 ++-- samples/bpf/ibumad_kern.c | 4 ++-- samples/bpf/lwt_len_hist.sh | 2 +- samples/bpf/offwaketime_kern.c | 2 +- samples/bpf/task_fd_query_user.c | 4 ++-- samples/bpf/test_lwt_bpf.sh | 2 +- samples/bpf/test_overhead_tp_kern.c | 4 ++-- tools/include/uapi/linux/bpf.h | 8 ++++---- 10 files changed, 21 insertions(+), 21 deletions(-) diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h index 464ca3f01fe7..44387b31cbde 100644 --- a/include/uapi/linux/bpf.h +++ b/include/uapi/linux/bpf.h @@ -1642,17 +1642,17 @@ union bpf_attr { * Description * This helper is a "printk()-like" facility for debugging. It * prints a message defined by format *fmt* (of size *fmt_size*) - * to file *\/sys/kernel/debug/tracing/trace* from DebugFS, if + * to file *\/sys/kernel/tracing/trace* from TraceFS, if * available. It can take up to three additional **u64** * arguments (as an eBPF helpers, the total number of arguments is * limited to five). * * Each time the helper is called, it appends a line to the trace. - * Lines are discarded while *\/sys/kernel/debug/tracing/trace* is - * open, use *\/sys/kernel/debug/tracing/trace_pipe* to avoid this. + * Lines are discarded while *\/sys/kernel/tracing/trace* is + * open, use *\/sys/kernel/tracing/trace_pipe* to avoid this. * The format of the trace is customizable, and the exact output * one will get depends on the options set in - * *\/sys/kernel/debug/tracing/trace_options* (see also the + * *\/sys/kernel/tracing/trace_options* (see also the * *README* file under the same directory). However, it usually * defaults to something like: * diff --git a/samples/bpf/cpustat_kern.c b/samples/bpf/cpustat_kern.c index 5aefd19cdfa1..944f13fe164a 100644 --- a/samples/bpf/cpustat_kern.c +++ b/samples/bpf/cpustat_kern.c @@ -76,8 +76,8 @@ struct { /* * The trace events for cpu_idle and cpu_frequency are taken from: - * /sys/kernel/debug/tracing/events/power/cpu_idle/format - * /sys/kernel/debug/tracing/events/power/cpu_frequency/format + * /sys/kernel/tracing/events/power/cpu_idle/format + * /sys/kernel/tracing/events/power/cpu_frequency/format * * These two events have same format, so define one common structure. */ diff --git a/samples/bpf/hbm.c b/samples/bpf/hbm.c index 516fbac28b71..ff58ec43f56a 100644 --- a/samples/bpf/hbm.c +++ b/samples/bpf/hbm.c @@ -65,7 +65,7 @@ static void Usage(void); static void read_trace_pipe2(void); static void do_error(char *msg, bool errno_flag); -#define DEBUGFS "/sys/kernel/debug/tracing/" +#define TRACEFS "/sys/kernel/tracing/" static struct bpf_program *bpf_prog; static struct bpf_object *obj; @@ -77,7 +77,7 @@ static void read_trace_pipe2(void) FILE *outf; char *outFname = "hbm_out.log"; - trace_fd = open(DEBUGFS "trace_pipe", O_RDONLY, 0); + trace_fd = open(TRACEFS "trace_pipe", O_RDONLY, 0); if (trace_fd < 0) { printf("Error opening trace_pipe\n"); return; diff --git a/samples/bpf/ibumad_kern.c b/samples/bpf/ibumad_kern.c index 9b193231024a..f07474c72525 100644 --- a/samples/bpf/ibumad_kern.c +++ b/samples/bpf/ibumad_kern.c @@ -39,8 +39,8 @@ struct { /* Taken from the current format defined in * include/trace/events/ib_umad.h * and - * /sys/kernel/debug/tracing/events/ib_umad/ib_umad_read/format - * /sys/kernel/debug/tracing/events/ib_umad/ib_umad_write/format + * /sys/kernel/tracing/events/ib_umad/ib_umad_read/format + * /sys/kernel/tracing/events/ib_umad/ib_umad_write/format */ struct ib_umad_rw_args { u64 pad; diff --git a/samples/bpf/lwt_len_hist.sh b/samples/bpf/lwt_len_hist.sh index 0eda9754f50b..11fa0a087db6 100755 --- a/samples/bpf/lwt_len_hist.sh +++ b/samples/bpf/lwt_len_hist.sh @@ -5,7 +5,7 @@ NS1=lwt_ns1 VETH0=tst_lwt1a VETH1=tst_lwt1b -TRACE_ROOT=/sys/kernel/debug/tracing +TRACE_ROOT=/sys/kernel/tracing function cleanup { # To reset saved histogram, remove pinned map diff --git a/samples/bpf/offwaketime_kern.c b/samples/bpf/offwaketime_kern.c index eb4d94742e6b..23f12b47e9e5 100644 --- a/samples/bpf/offwaketime_kern.c +++ b/samples/bpf/offwaketime_kern.c @@ -110,7 +110,7 @@ static inline int update_counts(void *ctx, u32 pid, u64 delta) } #if 1 -/* taken from /sys/kernel/debug/tracing/events/sched/sched_switch/format */ +/* taken from /sys/kernel/tracing/events/sched/sched_switch/format */ struct sched_switch_args { unsigned long long pad; char prev_comm[TASK_COMM_LEN]; diff --git a/samples/bpf/task_fd_query_user.c b/samples/bpf/task_fd_query_user.c index a33d74bd3a4b..1e61f2180470 100644 --- a/samples/bpf/task_fd_query_user.c +++ b/samples/bpf/task_fd_query_user.c @@ -235,7 +235,7 @@ static int test_debug_fs_uprobe(char *binary_path, long offset, bool is_return) struct bpf_link *link; ssize_t bytes; - snprintf(buf, sizeof(buf), "/sys/kernel/debug/tracing/%s_events", + snprintf(buf, sizeof(buf), "/sys/kernel/tracing/%s_events", event_type); kfd = open(buf, O_WRONLY | O_TRUNC, 0); CHECK_PERROR_RET(kfd < 0); @@ -252,7 +252,7 @@ static int test_debug_fs_uprobe(char *binary_path, long offset, bool is_return) close(kfd); kfd = -1; - snprintf(buf, sizeof(buf), "/sys/kernel/debug/tracing/events/%ss/%s/id", + snprintf(buf, sizeof(buf), "/sys/kernel/tracing/events/%ss/%s/id", event_type, event_alias); efd = open(buf, O_RDONLY, 0); CHECK_PERROR_RET(efd < 0); diff --git a/samples/bpf/test_lwt_bpf.sh b/samples/bpf/test_lwt_bpf.sh index 65a976058dd3..db5691e6637f 100755 --- a/samples/bpf/test_lwt_bpf.sh +++ b/samples/bpf/test_lwt_bpf.sh @@ -19,7 +19,7 @@ IPVETH3="192.168.111.2" IP_LOCAL="192.168.99.1" -TRACE_ROOT=/sys/kernel/debug/tracing +TRACE_ROOT=/sys/kernel/tracing function lookup_mac() { diff --git a/samples/bpf/test_overhead_tp_kern.c b/samples/bpf/test_overhead_tp_kern.c index 80edadacb692..a1d53b0d8476 100644 --- a/samples/bpf/test_overhead_tp_kern.c +++ b/samples/bpf/test_overhead_tp_kern.c @@ -8,7 +8,7 @@ #include <uapi/linux/bpf.h> #include <bpf/bpf_helpers.h> -/* from /sys/kernel/debug/tracing/events/task/task_rename/format */ +/* from /sys/kernel/tracing/events/task/task_rename/format */ struct task_rename { __u64 pad; __u32 pid; @@ -22,7 +22,7 @@ int prog(struct task_rename *ctx) return 0; } -/* from /sys/kernel/debug/tracing/events/random/urandom_read/format */ +/* from /sys/kernel/tracing/events/random/urandom_read/format */ struct urandom_read { __u64 pad; int got_bits; diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h index 464ca3f01fe7..44387b31cbde 100644 --- a/tools/include/uapi/linux/bpf.h +++ b/tools/include/uapi/linux/bpf.h @@ -1642,17 +1642,17 @@ union bpf_attr { * Description * This helper is a "printk()-like" facility for debugging. It * prints a message defined by format *fmt* (of size *fmt_size*) - * to file *\/sys/kernel/debug/tracing/trace* from DebugFS, if + * to file *\/sys/kernel/tracing/trace* from TraceFS, if * available. It can take up to three additional **u64** * arguments (as an eBPF helpers, the total number of arguments is * limited to five). * * Each time the helper is called, it appends a line to the trace. - * Lines are discarded while *\/sys/kernel/debug/tracing/trace* is - * open, use *\/sys/kernel/debug/tracing/trace_pipe* to avoid this. + * Lines are discarded while *\/sys/kernel/tracing/trace* is + * open, use *\/sys/kernel/tracing/trace_pipe* to avoid this. * The format of the trace is customizable, and the exact output * one will get depends on the options set in - * *\/sys/kernel/debug/tracing/trace_options* (see also the + * *\/sys/kernel/tracing/trace_options* (see also the * *README* file under the same directory). However, it usually * defaults to something like: * -- 2.39.1.581.gbfd45094c4-goog

1 year, 5 months

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[PATCH i-g-t v2 0/4] Add support for KUnit tests

by Isabella Basso

This patch series was first developed as part of the LKCamp hackathon that happened last year[1], mainly focusing on refactoring DRM tests to use KUnit. KUnit[2][3] is a unified test framework that provides helper tools, simplifying their development and execution. Using an x86-64 machine it's possible to run tests in the host's kernel natively using user-mode Linux[4] (aka UML), which simplifies usage in a wide variety of scenarios, including integration to CI. As the tool's adoption widens into graphics testing territory, I and LKCamp members figured it would be important to support it in IGT, as it's a core tool for GPU drivers maintainers. I have then added KUnit support into IGT mainly following the KTAP specs, and it can be tested using patch 4/4 in this series together with a DRM selftests patch series available at [5]. Changes since v1: - Major rework of parsing function structure: - It is not longer recursive - Adapt kselftests functions and structs to be used with KUnit - Switch DRM selftests to KUnit parsing as they're updated in the kernel - Replace AMD KUnit tests by DRM selftests [1]: https://groups.google.com/g/kunit-dev/c/YqFR1q2uZvk/m/IbvItSfHBAAJ [2]: https://kunit.dev [3]: https://docs.kernel.org/dev-tools/kunit/index.html [4]: http://user-mode-linux.sourceforge.net [5]: https://lore.kernel.org/all/20220708203052.236290-1-maira.canal@usp.br/ Isabella Basso (4): lib/igt_kmod: rename kselftest functions to ktest lib/igt_kmod.c: check if module is builtin before attempting to unload it lib/igt_kmod: add compatibility for KUnit tests: DRM selftests: switch to KUnit lib/igt_kmod.c | 315 +++++++++++++++++++++++++++++++++++++++++-- lib/igt_kmod.h | 14 +- tests/drm_buddy.c | 7 +- tests/drm_mm.c | 7 +- tests/kms_selftest.c | 12 +- 5 files changed, 329 insertions(+), 26 deletions(-) -- 2.37.2

1 year, 5 months

6
29
0 0

[PATCH bpf-next] selftests/bpf: Cross-compile bpftool

by Björn Töpel

From: Björn Töpel <bjorn(a)rivosinc.com> When the BPF selftests are cross-compiled, only the a host version of bpftool is built. This version of bpftool is used to generate various intermediates, e.g., skeletons. The test runners are also using bpftool. The Makefile will symlink bpftool from the selftest/bpf root, where the test runners will look for the tool: | ... | $(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/bootstrap/bpftool \ | $(OUTPUT)/$(if $2,$2/)bpftool There are two issues for cross-compilation builds: 1. There is no native (cross-compilation target) build of bpftool 2. The bootstrap variant of bpftool is never cross-compiled (by design) Make sure that a native/cross-compiled version of bpftool is built, and if CROSS_COMPILE is set, symlink to the native/non-bootstrap version. Signed-off-by: Björn Töpel <bjorn(a)rivosinc.com> --- tools/testing/selftests/bpf/Makefile | 28 +++++++++++++++++++++++++--- 1 file changed, 25 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index b2eb3201b85a..b706750f71e2 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -157,8 +157,9 @@ $(notdir $(TEST_GEN_PROGS) \ $(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ; # sort removes libbpf duplicates when not cross-building -MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \ - $(HOST_BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/resolve_btfids \ +MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \ + $(BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/bpftool \ + $(HOST_BUILD_DIR)/resolve_btfids \ $(RUNQSLOWER_OUTPUT) $(INCLUDE_DIR)) $(MAKE_DIRS): $(call msg,MKDIR,,$@) @@ -208,6 +209,14 @@ $(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(wildcard bpf_testmod/Makefile bpf_tes $(Q)cp bpf_testmod/bpf_testmod.ko $@ DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool +ifneq ($(CROSS_COMPILE),) +CROSS_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool +TRUNNER_BPFTOOL := $(CROSS_BPFTOOL) +USE_BOOTSTRAP := "" +else +TRUNNER_BPFTOOL := $(DEFAULT_BPFTOOL) +USE_BOOTSTRAP := "bootstrap" +endif $(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) $(RUNQSLOWER_OUTPUT) $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \ @@ -255,6 +264,18 @@ $(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \ prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin +ifneq ($(CROSS_COMPILE),) +$(CROSS_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ + $(BPFOBJ) | $(BUILD_DIR)/bpftool + $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ + ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) \ + EXTRA_CFLAGS='-g -O0' \ + OUTPUT=$(BUILD_DIR)/bpftool/ \ + LIBBPF_OUTPUT=$(BUILD_DIR)/libbpf/ \ + LIBBPF_DESTDIR=$(SCRATCH_DIR)/ \ + prefix= DESTDIR=$(SCRATCH_DIR)/ install-bin +endif + all: docs docs: @@ -518,11 +539,12 @@ endif $(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \ $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \ $(RESOLVE_BTFIDS) \ + $(TRUNNER_BPFTOOL) \ | $(TRUNNER_BINARY)-extras $$(call msg,BINARY,,$$@) $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@ $(Q)$(RESOLVE_BTFIDS) --btf $(TRUNNER_OUTPUT)/btf_data.bpf.o $$@ - $(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/bootstrap/bpftool \ + $(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/$(USE_BOOTSTRAP)/bpftool \ $(OUTPUT)/$(if $2,$2/)bpftool endef base-commit: 06744f24696e1e7598412c3df61a538b57ebec22 -- 2.37.2

1 year, 5 months

4
7
0 0

[PATCH v7 0/6] Some improvements of resctrl selftest

by Shaopeng Tan

Hello, The aim of this patch series is to improve the resctrl selftest. Without these fixes, some unnecessary processing will be executed and test results will be confusing. There is no behavior change in test themselves. [patch 1] Make write_schemata() run to set up shemata with 100% allocation on first run in MBM test. [patch 2] The MBA test result message is always output as "ok", make output message to be "not ok" if MBA check result is failed. [patch 3] When a child process is created by fork(), the buffer of the parent process is also copied. Flush the buffer before executing fork(). [patch 4] An error occurs whether in parents process or child process, the parents process always kills child process and runs umount_resctrlfs(), and the child process always waits to be killed by the parent process. [patch 5] If a signal received, to cleanup properly before exiting the parent process, commonize the signal handler registered for CMT/MBM/MBA tests and reuse it in CAT, also unregister the signal handler at the end of each test. [patch 6] Before exiting each test CMT/CAT/MBM/MBA, clear test result files function cat/cmt/mbm/mba_test_cleanup() are called twice. Delete once. This patch series is based on Linux v6.2-rc7. Difference from v6: [patch 4] - Separate patch 4 into patch 4 and patch 5. - Left the part that cleanup properly when an error occurs in CAT test. [patch 5] - Another part that cleanup properly when a signal is received in each test. - Only parent process call signal_handler_unregister() in CAT test. - Correct "Non-Vaule" to "Non-value" - Rename goto lables. Pervious versions of this series: [v1] https://lore.kernel.org/lkml/20220914015147.3071025-1-tan.shaopeng@jp.fujit… [v2] https://lore.kernel.org/lkml/20221005013933.1486054-1-tan.shaopeng@jp.fujit… [v3] https://lore.kernel.org/lkml/20221101094341.3383073-1-tan.shaopeng@jp.fujit… [v4] https://lore.kernel.org/lkml/20221117010541.1014481-1-tan.shaopeng@jp.fujit… [v5] https://lore.kernel.org/lkml/20230111075802.3556803-1-tan.shaopeng@jp.fujit… [v6] https://lore.kernel.org/lkml/20230131054655.396270-1-tan.shaopeng@jp.fujits… Shaopeng Tan (6): selftests/resctrl: Fix set up schemata with 100% allocation on first run in MBM test selftests/resctrl: Return MBA check result and make it to output message selftests/resctrl: Flush stdout file buffer before executing fork() selftests/resctrl: Cleanup properly when an error occurs in CAT test selftests/resctrl: Commonize the signal handler register/unregister for all tests selftests/resctrl: Remove duplicate codes that clear each test result file tools/testing/selftests/resctrl/cat_test.c | 29 ++++---- tools/testing/selftests/resctrl/cmt_test.c | 7 +- tools/testing/selftests/resctrl/fill_buf.c | 14 ---- tools/testing/selftests/resctrl/mba_test.c | 23 +++---- tools/testing/selftests/resctrl/mbm_test.c | 20 +++--- tools/testing/selftests/resctrl/resctrl.h | 2 + .../testing/selftests/resctrl/resctrl_tests.c | 4 -- tools/testing/selftests/resctrl/resctrl_val.c | 67 ++++++++++++++----- tools/testing/selftests/resctrl/resctrlfs.c | 5 +- 9 files changed, 96 insertions(+), 75 deletions(-) -- 2.27.0

1 year, 5 months

3
12
0 0

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Linux-kselftest-mirror February 2023