Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
413 | 100.00% | 1 | 100.00% | |
Total | 413 | 1 |
Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Kumar Kartikeya Dwivedi | 413 | 100.00% | 1 | 100.00% |
Total | 413 | 1 |
// SPDX-License-Identifier: GPL-2.0 #define _GNU_SOURCE #include <sched.h> #include <test_progs.h> #include <pthread.h> #include <network_helpers.h> #include "timer_lockup.skel.h" static long cpu; static int *timer1_err; static int *timer2_err; static bool skip; volatile int k = 0; static void *timer_lockup_thread(void *arg) { LIBBPF_OPTS(bpf_test_run_opts, opts, .data_in = &pkt_v4, .data_size_in = sizeof(pkt_v4), .repeat = 1000, ); int i, prog_fd = *(int *)arg; cpu_set_t cpuset; CPU_ZERO(&cpuset); CPU_SET(__sync_fetch_and_add(&cpu, 1), &cpuset); ASSERT_OK(pthread_setaffinity_np(pthread_self(), sizeof(cpuset), &cpuset), "cpu affinity"); for (i = 0; !READ_ONCE(*timer1_err) && !READ_ONCE(*timer2_err); i++) { bpf_prog_test_run_opts(prog_fd, &opts); /* Skip the test if we can't reproduce the race in a reasonable * amount of time. */ if (i > 50) { WRITE_ONCE(skip, true); break; } } return NULL; } void test_timer_lockup(void) { int timer1_prog, timer2_prog; struct timer_lockup *skel; pthread_t thrds[2]; void *ret; skel = timer_lockup__open_and_load(); if (!ASSERT_OK_PTR(skel, "timer_lockup__open_and_load")) return; timer1_prog = bpf_program__fd(skel->progs.timer1_prog); timer2_prog = bpf_program__fd(skel->progs.timer2_prog); timer1_err = &skel->bss->timer1_err; timer2_err = &skel->bss->timer2_err; if (!ASSERT_OK(pthread_create(&thrds[0], NULL, timer_lockup_thread, &timer1_prog), "pthread_create thread1")) goto out; if (!ASSERT_OK(pthread_create(&thrds[1], NULL, timer_lockup_thread, &timer2_prog), "pthread_create thread2")) { pthread_exit(&thrds[0]); goto out; } pthread_join(thrds[1], &ret); pthread_join(thrds[0], &ret); if (skip) { test__skip(); goto out; } if (*timer1_err != -EDEADLK && *timer1_err != 0) ASSERT_FAIL("timer1_err bad value"); if (*timer2_err != -EDEADLK && *timer2_err != 0) ASSERT_FAIL("timer2_err bad value"); out: timer_lockup__destroy(skel); return; }