diff options
Diffstat (limited to 'lib/igt_aux.c')
| -rw-r--r-- | lib/igt_aux.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/igt_aux.c b/lib/igt_aux.c index aabf6e50..acafb713 100644 --- a/lib/igt_aux.c +++ b/lib/igt_aux.c @@ -426,6 +426,24 @@ void igt_stop_shrink_helper(void) igt_stop_helper(&shrink_helper); } +static void show_kernel_stack(pid_t pid) +{ + char buf[80], *str; + int dir; + + snprintf(buf, sizeof(buf), "/proc/%d", pid); + dir = open(buf, O_RDONLY); + if (dir < 0) + return; + + str = igt_sysfs_get(dir, "stack"); + if (str) { + igt_debug("Kernel stack for pid %d:\n%s\n", pid, str); + free(str); + } + + close(dir); +} static struct igt_helper_process hang_detector; static void __attribute__((noreturn)) @@ -465,6 +483,7 @@ hang_detector_process(int fd, pid_t pid, dev_t rdev) str = udev_device_get_property_value(dev, "ERROR"); if (str && atoi(str) == 1) { igt_debugfs_dump(fd, "i915_error_state"); + show_kernel_stack(pid); kill(pid, SIGIO); } } |