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

[PATCH net v2] selftests/vsock: avoid false-positives when checking dmesg

by Bobby Eshleman

From: Bobby Eshleman <bobbyeshleman(a)meta.com> Sometimes VMs will have some intermittent dmesg warnings that are unrelated to vsock. Change the dmesg parsing to filter on strings containing 'vsock' to avoid false positive failures that are unrelated to vsock. The downside is that it is possible for some vsock related warnings to not contain the substring 'vsock', so those will be missed. Fixes: a4a65c6fe08b ("selftests/vsock: add initial vmtest.sh for vsock") Reviewed-by: Simon Horman <horms(a)kernel.org> Signed-off-by: Bobby Eshleman <bobbyeshleman(a)meta.com> --- Previously was part of the series: https://lore.kernel.org/all/20251022-vsock-selftests-fixes-and-improvements… --- Changes in v2: - use consistent quoting for vsock string - Link to v1: https://lore.kernel.org/r/20251104-vsock-vmtest-dmesg-fix-v1-1-80c8db3f5dfe… --- tools/testing/selftests/vsock/vmtest.sh | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/vsock/vmtest.sh b/tools/testing/selftests/vsock/vmtest.sh index edacebfc1632..8ceeb8a7894f 100755 --- a/tools/testing/selftests/vsock/vmtest.sh +++ b/tools/testing/selftests/vsock/vmtest.sh @@ -389,9 +389,9 @@ run_test() { local rc host_oops_cnt_before=$(dmesg | grep -c -i 'Oops') - host_warn_cnt_before=$(dmesg --level=warn | wc -l) + host_warn_cnt_before=$(dmesg --level=warn | grep -c -i 'vsock') vm_oops_cnt_before=$(vm_ssh -- dmesg | grep -c -i 'Oops') - vm_warn_cnt_before=$(vm_ssh -- dmesg --level=warn | wc -l) + vm_warn_cnt_before=$(vm_ssh -- dmesg --level=warn | grep -c -i 'vsock') name=$(echo "${1}" | awk '{ print $1 }') eval test_"${name}" @@ -403,7 +403,7 @@ run_test() { rc=$KSFT_FAIL fi - host_warn_cnt_after=$(dmesg --level=warn | wc -l) + host_warn_cnt_after=$(dmesg --level=warn | grep -c -i 'vsock') if [[ ${host_warn_cnt_after} -gt ${host_warn_cnt_before} ]]; then echo "FAIL: kernel warning detected on host" | log_host "${name}" rc=$KSFT_FAIL @@ -415,7 +415,7 @@ run_test() { rc=$KSFT_FAIL fi - vm_warn_cnt_after=$(vm_ssh -- dmesg --level=warn | wc -l) + vm_warn_cnt_after=$(vm_ssh -- dmesg --level=warn | grep -c -i 'vsock') if [[ ${vm_warn_cnt_after} -gt ${vm_warn_cnt_before} ]]; then echo "FAIL: kernel warning detected on vm" | log_host "${name}" rc=$KSFT_FAIL --- base-commit: 89aec171d9d1ab168e43fcf9754b82e4c0aef9b9 change-id: 20251104-vsock-vmtest-dmesg-fix-b2c59e1d9c38 Best regards, -- Bobby Eshleman <bobbyeshleman(a)meta.com>

2 weeks, 1 day

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[PATCH] selftests: timers: nanosleep: Add tests for return of remaining time

by Thomas Weißschuh

If interrupted by a signal clock_nanosleep() returns the remaining time into the structure pointed to by the rmtp parameter. So far this functionality was not tested by the timer selftests. Extend the nanosleep selftest to cover this feature. Signed-off-by: Thomas Weißschuh <thomas.weissschuh(a)linutronix.de> --- tools/testing/selftests/timers/nanosleep.c | 55 ++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) diff --git a/tools/testing/selftests/timers/nanosleep.c b/tools/testing/selftests/timers/nanosleep.c index 252c6308c5698f9094b8bdc39c284077b5d55531..10badae13ebeb8d596839d5aab1a5161526eeaa9 100644 --- a/tools/testing/selftests/timers/nanosleep.c +++ b/tools/testing/selftests/timers/nanosleep.c @@ -116,6 +116,56 @@ int nanosleep_test(int clockid, long long ns) return 0; } +static void dummy_event_handler(int val) +{ + /* No action needed */ +} + +static int nanosleep_test_remaining(int clockid) +{ + struct timespec rqtp = {}, rmtp = {}; + struct itimerspec itimer = {}; + struct sigaction sa = {}; + timer_t timer; + int ret; + + sa.sa_handler = dummy_event_handler; + ret = sigaction(SIGALRM, &sa, NULL); + if (ret) + return -1; + + ret = timer_create(clockid, NULL, &timer); + if (ret) + return -1; + + itimer.it_value.tv_nsec = NSEC_PER_SEC / 4; + ret = timer_settime(timer, 0, &itimer, NULL); + if (ret) + return -1; + + rqtp.tv_nsec = NSEC_PER_SEC / 2; + ret = clock_nanosleep(clockid, 0, &rqtp, &rmtp); + if (ret != EINTR) + return -1; + + ret = timer_delete(timer); + if (ret) + return -1; + + sa.sa_handler = SIG_DFL; + ret = sigaction(SIGALRM, &sa, NULL); + if (ret) + return -1; + + if (!in_order((struct timespec) {}, rmtp)) + return -1; + + if (!in_order(rmtp, rqtp)) + return -1; + + return 0; +} + int main(int argc, char **argv) { long long length; @@ -150,6 +200,11 @@ int main(int argc, char **argv) } length *= 100; } + ret = nanosleep_test_remaining(clockid); + if (ret < 0) { + ksft_test_result_fail("%-31s\n", clockstring(clockid)); + ksft_exit_fail(); + } ksft_test_result_pass("%-31s\n", clockstring(clockid)); next: ret = 0; --- base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787 change-id: 20251014-nanosleep-rtmp-selftest-6c14f1374f6f Best regards, -- Thomas Weißschuh <thomas.weissschuh(a)linutronix.de>

2 weeks, 1 day

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[PATCH] selftests: net: local_termination: Wait for interfaces to come up

by A. Sverdlin

From: Alexander Sverdlin <alexander.sverdlin(a)siemens.com> It seems that most of the tests prepare the interfaces once before the test run (setup_prepare()), rely on setup_wait() to wait for link and only then run the test(s). local_termination brings the physical interfaces down and up during test run but never wait for them to come up. If the auto-negotiation takes some seconds, first test packets are being lost, which leads to false-negative test results. Use setup_wait_dev() after corresponding simple_if_init() on physical interfaces to make sure auto-negotiation has been completed and test packets will not be lost because of the race against link establishment. The wait has to be done in each individual test because the interfaces have to be brough up first and only then we can wait for link (not individually, because they are expected to be looped in pairs). Fixes: 90b9566aa5cd3f ("selftests: forwarding: add a test for local_termination.sh") Signed-off-by: Alexander Sverdlin <alexander.sverdlin(a)siemens.com> --- .../selftests/net/forwarding/local_termination.sh | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/testing/selftests/net/forwarding/local_termination.sh b/tools/testing/selftests/net/forwarding/local_termination.sh index ecd34f364125c..369c8b2c1f4a2 100755 --- a/tools/testing/selftests/net/forwarding/local_termination.sh +++ b/tools/testing/selftests/net/forwarding/local_termination.sh @@ -430,6 +430,8 @@ standalone() h1_create h2_create macvlan_create $h2 + setup_wait_dev $h1 + setup_wait_dev $h2 run_test $h1 $h2 $skip_ptp $no_unicast_flt "$h2" @@ -448,6 +450,8 @@ test_bridge() bridge_create $vlan_filtering simple_if_init br0 $H2_IPV4/24 $H2_IPV6/64 macvlan_create br0 + setup_wait_dev $h1 + setup_wait_dev $h2 run_test $h1 br0 $skip_ptp $no_unicast_flt \ "vlan_filtering=$vlan_filtering bridge" @@ -480,6 +484,8 @@ test_vlan() h1_vlan_create h2_vlan_create macvlan_create $h2.100 + setup_wait_dev $h1 + setup_wait_dev $h2 run_test $h1.100 $h2.100 $skip_ptp $no_unicast_flt "VLAN upper" @@ -505,6 +511,8 @@ vlan_over_bridged_port() h2_vlan_create bridge_create $vlan_filtering macvlan_create $h2.100 + setup_wait_dev $h1 + setup_wait_dev $h2 run_test $h1.100 $h2.100 $skip_ptp $no_unicast_flt \ "VLAN over vlan_filtering=$vlan_filtering bridged port" @@ -536,6 +544,8 @@ vlan_over_bridge() simple_if_init br0 vlan_create br0 100 vbr0 $H2_IPV4/24 $H2_IPV6/64 macvlan_create br0.100 + setup_wait_dev $h1 + setup_wait_dev $h2 if [ $vlan_filtering = 1 ]; then bridge vlan add dev $h2 vid 100 master -- 2.51.1

2 weeks, 1 day

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[PATCH v4 00/35] sparc64: vdso: Switch to the generic vDSO library

by Thomas Weißschuh

The generic vDSO provides a lot common functionality shared between different architectures. SPARC is the last architecture not using it, preventing some necessary code cleanup. Make use of the generic infrastructure. Follow-up to and replacement for Arnd's SPARC vDSO removal patches: https://lore.kernel.org/lkml/20250707144726.4008707-1-arnd@kernel.org/ SPARC64 can not map .bss into userspace, so the vDSO datapages are switched over to be allocated dynamically. This requires changes to the s390 and random subsystem vDSO initialization as preparation. The random subsystem changes in turn require some cleanup of the vDSO headers to not end up as ugly #ifdef mess. Tested on a Niagara T4 and QEMU. This has a semantic conflict with my series "vdso: Reject absolute relocations during build" [0]. The last patch of this series expects all users of the generic vDSO library to use the vdsocheck tool. This is not the case (yet) for SPARC64. I do have the patches for the integration, the specifics will depend on which series is applied first. Based on v6.18-rc1. [0] https://lore.kernel.org/lkml/20250812-vdso-absolute-reloc-v4-0-61a8b615e5ec… Signed-off-by: Thomas Weißschuh <thomas.weissschuh(a)linutronix.de> --- Changes in v4: - Rebase on v6.18-rc1. - Keep inclusion of asm/clocksource.h from linux/clocksource.h - Reword description of "s390/time: Set up vDSO datapage later" - Link to v3: https://lore.kernel.org/r/20250917-vdso-sparc64-generic-2-v3-0-3679b1bc8ee8… Changes in v3: - Allocate vDSO data pages dynamically (and lots of preparations for that) - Drop clock_getres() - Fix 32bit clock_gettime() syscall fallback - Link to v2: https://lore.kernel.org/r/20250815-vdso-sparc64-generic-2-v2-0-b5ff80672347… Changes in v2: - Rebase on v6.17-rc1 - Drop RFC state - Fix typo in commit message - Drop duplicate 'select GENERIC_TIME_VSYSCALL' - Merge "sparc64: time: Remove architecture-specific clocksource data" into the main conversion patch. It violated the check in __clocksource_register_scale() - Link to v1: https://lore.kernel.org/r/20250724-vdso-sparc64-generic-2-v1-0-e376a3bd24d1… --- Arnd Bergmann (1): clocksource: remove ARCH_CLOCKSOURCE_DATA Thomas Weißschuh (34): selftests: vDSO: vdso_test_correctness: Handle different tv_usec types arm64: vDSO: getrandom: Explicitly include asm/alternative.h arm64: vDSO: gettimeofday: Explicitly include vdso/clocksource.h arm64: vDSO: compat_gettimeofday: Add explicit includes ARM: vdso: gettimeofday: Add explicit includes powerpc/vdso/gettimeofday: Explicitly include vdso/time32.h powerpc/vdso: Explicitly include asm/cputable.h and asm/feature-fixups.h LoongArch: vDSO: Explicitly include asm/vdso/vdso.h MIPS: vdso: Add include guard to asm/vdso/vdso.h MIPS: vdso: Explicitly include asm/vdso/vdso.h random: vDSO: Add explicit includes vdso/gettimeofday: Add explicit includes vdso/helpers: Explicitly include vdso/processor.h vdso/datapage: Remove inclusion of gettimeofday.h vdso/datapage: Trim down unnecessary includes random: vDSO: trim vDSO includes random: vDSO: remove ifdeffery random: vDSO: split out datapage update into helper functions random: vDSO: only access vDSO datapage after random_init() s390/time: Set up vDSO datapage later vdso/datastore: Reduce scope of some variables in vvar_fault() vdso/datastore: Drop inclusion of linux/mmap_lock.h vdso/datastore: Map pages through struct page vdso/datastore: Allocate data pages dynamically sparc64: vdso: Link with -z noexecstack sparc64: vdso: Remove obsolete "fake section table" reservation sparc64: vdso: Replace code patching with runtime conditional sparc64: vdso: Move hardware counter read into header sparc64: vdso: Move syscall fallbacks into header sparc64: vdso: Introduce vdso/processor.h sparc64: vdso: Switch to the generic vDSO library sparc64: vdso2c: Drop sym_vvar_start handling sparc64: vdso2c: Remove symbol handling sparc64: vdso: Implement clock_gettime64() arch/arm/include/asm/vdso/gettimeofday.h | 2 + arch/arm64/include/asm/vdso/compat_gettimeofday.h | 3 + arch/arm64/include/asm/vdso/gettimeofday.h | 2 + arch/arm64/kernel/vdso/vgetrandom.c | 2 + arch/loongarch/kernel/process.c | 1 + arch/loongarch/kernel/vdso.c | 1 + arch/mips/include/asm/vdso/vdso.h | 5 + arch/mips/kernel/vdso.c | 1 + arch/powerpc/include/asm/vdso/gettimeofday.h | 1 + arch/powerpc/include/asm/vdso/processor.h | 3 + arch/s390/kernel/time.c | 4 +- arch/sparc/Kconfig | 3 +- arch/sparc/include/asm/clocksource.h | 9 - arch/sparc/include/asm/processor.h | 3 + arch/sparc/include/asm/processor_32.h | 2 - arch/sparc/include/asm/processor_64.h | 25 -- arch/sparc/include/asm/vdso.h | 2 - arch/sparc/include/asm/vdso/clocksource.h | 10 + arch/sparc/include/asm/vdso/gettimeofday.h | 184 ++++++++++ arch/sparc/include/asm/vdso/processor.h | 41 +++ arch/sparc/include/asm/vdso/vsyscall.h | 10 + arch/sparc/include/asm/vvar.h | 75 ---- arch/sparc/kernel/Makefile | 1 - arch/sparc/kernel/time_64.c | 6 +- arch/sparc/kernel/vdso.c | 69 ---- arch/sparc/vdso/Makefile | 8 +- arch/sparc/vdso/vclock_gettime.c | 380 ++------------------- arch/sparc/vdso/vdso-layout.lds.S | 26 +- arch/sparc/vdso/vdso.lds.S | 2 - arch/sparc/vdso/vdso2c.c | 24 -- arch/sparc/vdso/vdso2c.h | 45 +-- arch/sparc/vdso/vdso32/vdso32.lds.S | 4 +- arch/sparc/vdso/vma.c | 274 +-------------- drivers/char/random.c | 71 ++-- include/linux/clocksource.h | 6 +- include/linux/vdso_datastore.h | 6 + include/vdso/datapage.h | 23 +- include/vdso/helpers.h | 1 + init/main.c | 2 + kernel/time/Kconfig | 4 - lib/vdso/datastore.c | 73 ++-- lib/vdso/getrandom.c | 3 + lib/vdso/gettimeofday.c | 17 + .../testing/selftests/vDSO/vdso_test_correctness.c | 8 +- 44 files changed, 448 insertions(+), 994 deletions(-) --- base-commit: 28b1ac5ccd8d4900a8f53f0e6e84d517a7ccc71f change-id: 20250722-vdso-sparc64-generic-2-25f2e058e92c Best regards, -- Thomas Weißschuh <thomas.weissschuh(a)linutronix.de>

2 weeks, 1 day

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[PATCH v3 0/2] Print map ID on successful creation

by Harshit Mogalapalli

Hi all, I have tried looking at an issue from the bpftool repository: https://github.com/libbpf/bpftool/issues/121 and this patch series tries to add that enhancement. Summary: Currently when a map creation is successful there is no message on the terminal, printing IDs on successful creation of maps can help notify the user and can be used in CI/CD. The first patch adds the logic for printing and the second patch adds a simple selftest for the same. Thank you very much. V1 --> V2: PATCH 1 updated [Thanks Yonghong for suggesting better way of error handling with a new label for close(fd); instead of calling multiple times] V2 --> V3: Thanks to Quentin. PATCH1: drop \n in p_err statement PATCH2: Remove messages in cases of successful ID printing. Also remove message with a "FAIL:" prefix to make it more consistent. Regards, Harshit Harshit Mogalapalli (2): bpftool: Print map ID upon creation and support JSON output selftests/bpf: Add test for bpftool map ID printing tools/bpf/bpftool/map.c | 21 +++++++++--- .../testing/selftests/bpf/test_bpftool_map.sh | 32 +++++++++++++++++++ 2 files changed, 49 insertions(+), 4 deletions(-) -- 2.50.1

2 weeks, 1 day

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[PATCH] selftests/seccomp: Fix pointer type mismatch in uprobe function declarations

by WangYuli

From: WangYuli <wangyl5933(a)chinaunicom.cn> Add __nocf_check attribute to probed_uretprobe on x86_64 to match probed_uprobe's function signature. [ Fix follow error with gcc-15: ] CC seccomp_bpf seccomp_bpf.c: In function ‘UPROBE_setup’: seccomp_bpf.c:5175:74: error: pointer type mismatch in conditional expression [-Wincompatible-pointer-types] 5175 | offset = get_uprobe_offset(variant->uretprobe ? probed_uretprobe : probed_uprobe); | ^ seccomp_bpf.c:5175:57: note: first expression has type ‘int (*)(void)’ 5175 | offset = get_uprobe_offset(variant->uretprobe ? probed_uretprobe : probed_uprobe); | ^~~~~~~~~~~~~~~~ seccomp_bpf.c:5175:76: note: second expression has type ‘int (__attribute__((nocf_check)) *)(void)’ 5175 | offset = get_uprobe_offset(variant->uretprobe ? probed_uretprobe : probed_uprobe); | ^~~~~~~~~~~~~ Signed-off-by: WangYuli <wangyl5933(a)chinaunicom.cn> Signed-off-by: WangYuli <wangyuli(a)aosc.io> --- tools/testing/selftests/seccomp/seccomp_bpf.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c index 874f17763536..19df80d18619 100644 --- a/tools/testing/selftests/seccomp/seccomp_bpf.c +++ b/tools/testing/selftests/seccomp/seccomp_bpf.c @@ -5057,17 +5057,23 @@ __naked __nocf_check noinline int probed_uprobe(void) } #pragma GCC diagnostic pop -#else +int __nocf_check noinline probed_uretprobe(void) +{ + return 1; +} + +#else /* !__x86_64__ */ + noinline int probed_uprobe(void) { return 1; } -#endif noinline int probed_uretprobe(void) { return 1; } +#endif /* __x86_64__ */ static int parse_uint_from_file(const char *file, const char *fmt) { -- 2.51.0

2 weeks, 1 day

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[PATCH][next] selftests/bpf: Fix spelling mistake "clien" -> "client"

by Colin Ian King

There are spelling mistakes in ASSERT_OK_PTR messages. Fix them. Signed-off-by: Colin Ian King <coking(a)nvidia.com> --- tools/testing/selftests/bpf/prog_tests/test_tc_tunnel.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/test_tc_tunnel.c b/tools/testing/selftests/bpf/prog_tests/test_tc_tunnel.c index deea90aaefad..f74fb50e3f9f 100644 --- a/tools/testing/selftests/bpf/prog_tests/test_tc_tunnel.c +++ b/tools/testing/selftests/bpf/prog_tests/test_tc_tunnel.c @@ -516,13 +516,13 @@ static void subtest_cleanup(struct subtest_cfg *cfg) struct nstoken *nstoken; nstoken = open_netns(CLIENT_NS); - if (ASSERT_OK_PTR(nstoken, "open clien ns")) { + if (ASSERT_OK_PTR(nstoken, "open client ns")) { SYS_NOFAIL("tc qdisc delete dev veth1 parent ffff:fff1"); SYS_NOFAIL("ip a flush veth1"); close_netns(nstoken); } nstoken = open_netns(SERVER_NS); - if (ASSERT_OK_PTR(nstoken, "open clien ns")) { + if (ASSERT_OK_PTR(nstoken, "open client ns")) { SYS_NOFAIL("tc qdisc delete dev veth2 parent ffff:fff1"); SYS_NOFAIL("ip a flush veth2"); if (!cfg->expect_kern_decap_failure) -- 2.51.0

2 weeks, 1 day

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[PATCH] selftest/alsa: correct grammar in conf_get_bool error string

by Zhang Chujun

The phrase "an bool" is grammatically incorrect; it should be "a bool". Signed-off-by: Zhang Chujun <zhangchujun(a)cmss.chinamobile.com> diff --git a/tools/testing/selftests/alsa/conf.c b/tools/testing/selftests/alsa/conf.c index 5b7c83fe87b3..317212078e36 100644 --- a/tools/testing/selftests/alsa/conf.c +++ b/tools/testing/selftests/alsa/conf.c @@ -448,7 +448,7 @@ int conf_get_bool(snd_config_t *root, const char *key1, const char *key2, int de ksft_exit_fail_msg("key '%s'.'%s' search error: %s\n", key1, key2, snd_strerror(ret)); ret = snd_config_get_bool(cfg); if (ret < 0) - ksft_exit_fail_msg("key '%s'.'%s' is not an bool\n", key1, key2); + ksft_exit_fail_msg("key '%s'.'%s' is not a bool\n", key1, key2); return !!ret; } -- 2.50.1.windows.1

2 weeks, 1 day

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[PATCH v2] selftests/user_events: Fix type cast for write_index packed member in perf_test

by Ankit Khushwaha

Accessing 'reg.write_index' directly triggers a -Waddress-of-packed-member warning due to potential unaligned pointer access: perf_test.c:239:38: warning: taking address of packed member 'write_index' of class or structure 'user_reg' may result in an unaligned pointer value [-Waddress-of-packed-member] 239 | ASSERT_NE(-1, write(self->data_fd, &reg.write_index, | ^~~~~~~~~~~~~~~ Since write(2) works with any alignment. Casting '&reg.write_index' explicitly to 'void *' to suppress this warning. Signed-off-by: Ankit Khushwaha <ankitkhushwaha.linux(a)gmail.com> --- Changelog: v2: - typecast '&reg.write_index' to 'void *' & remove use of memcpy as suggested by Andrew. v1: https://lore.kernel.org/linux-kselftest/20251027113439.36059-1-ankitkhushwa… --- tools/testing/selftests/user_events/perf_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/user_events/perf_test.c b/tools/testing/selftests/user_events/perf_test.c index 201459d8094d..cafec0e52eb3 100644 --- a/tools/testing/selftests/user_events/perf_test.c +++ b/tools/testing/selftests/user_events/perf_test.c @@ -236,7 +236,7 @@ TEST_F(user, perf_empty_events) { ASSERT_EQ(1 << reg.enable_bit, self->check); /* Ensure write shows up at correct offset */ - ASSERT_NE(-1, write(self->data_fd, &reg.write_index, + ASSERT_NE(-1, write(self->data_fd, (void *)&reg.write_index, sizeof(reg.write_index))); val = (void *)(((char *)perf_page) + perf_page->data_offset); ASSERT_EQ(PERF_RECORD_SAMPLE, *val); -- 2.51.0

2 weeks, 1 day

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/Re,

by Harry Schofield ESQ

Re: Good day, Hope you are well, my first email returned undelivered, please can I provide you with more information through this email?. Best regards, Harry Schofield

2 weeks, 1 day

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