When running tests, it will produce warnings like this: (core_auth:2552) igt-core-WARNING: Lockdep is turned off.
This makes sure lockdep warnings during load aren't accidentally ignored. Signed-off-by: Maarten Lankhorst <[email protected]> --- Unfortunately this version suffers from a small problem, piglit still succeeds without WARN. :( Seems to be an issue in piglit/tests/igt.py that needs a separate fix. diff --git a/lib/igt_core.c b/lib/igt_core.c index 832361b0a9f9..bb17ddfbcadb 100644 --- a/lib/igt_core.c +++ b/lib/igt_core.c @@ -570,6 +570,39 @@ static void oom_adjust_for_doom(void) } +static void igt_warn_lockdep(void) +{ + FILE *f; + long val; + char line[256]; + + f = fopen("/proc/lockdep_stats", "r"); + if (!f && errno == ENOENT) { + igt_debug("Lockdep is not compiled in.\n"); + return; + } + + igt_assert(f); + + while (fgets(line, sizeof(line), f)) { + if (strncmp(line, " debug_locks:", 13)) + continue; + + val = strtol(line + 13, NULL, 10); + + if (!val) + igt_warn("Lockdep is turned off.\n"); + else + igt_debug("Lockdep is active.\n"); + goto out; + } + + igt_warn("Could not find lockdep setting.\n"); + +out: + fclose(f); +} + static int common_init(int *argc, char **argv, const char *extra_short_opts, const struct option *extra_long_opts, @@ -741,6 +774,8 @@ out: low_mem_killer_disable(true); } + igt_warn_lockdep(); + /* install exit handler, to ensure we clean up */ igt_install_exit_handler(common_exit_handler); _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
