diff options
Diffstat (limited to 'lib/igt_core.c')
| -rw-r--r-- | lib/igt_core.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/igt_core.c b/lib/igt_core.c index 950ea9b0..538a4472 100644 --- a/lib/igt_core.c +++ b/lib/igt_core.c @@ -2282,6 +2282,13 @@ int igt_system(const char *command) if (pipe(errpipe) < 0) goto err; + /* + * The clone() system call called from a largish executable has + * difficulty to make progress if interrupted too frequently, so + * suspend the signal helper for the time of the syscall. + */ + igt_suspend_signal_helper(); + igt_fork_helper(&process) { close(outpipe[0]); close(errpipe[0]); @@ -2298,6 +2305,8 @@ int igt_system(const char *command) exit(EXIT_FAILURE); } + igt_resume_signal_helper(); + close(outpipe[1]); close(errpipe[1]); @@ -2340,9 +2349,14 @@ int igt_system_quiet(const char *command) if (dup2(nullfd, STDERR_FILENO) == -1) goto err; + /* See igt_system() for the reason for suspending the signal helper. */ + igt_suspend_signal_helper(); + if ((status = system(command)) == -1) goto err; + igt_resume_signal_helper(); + /* restore */ if (dup2(stdout_fd_copy, STDOUT_FILENO) == -1) goto err; @@ -2355,6 +2369,8 @@ int igt_system_quiet(const char *command) return WEXITSTATUS(status); err: + igt_resume_signal_helper(); + close(stderr_fd_copy); close(stdout_fd_copy); close(nullfd); |