Hi Shawn, without the i-g-t tag in the title this path was picked up by the kernel's patchwork. Can you please use the [PATCH i-g-t] tag? On Fri, Oct 13, 2023 at 12:20:12PM +0800, Lee Shawn C wrote: > We encounter a unexpected error on chrome book device while > running kms_busy test. It will restore GPU engine's timeout > value but open incorrect file name (XR24 in below). > > openat(AT_FDCWD, "/sys/dev/char/226:0", O_RDONLY) = 12 > openat(12, "dev", O_RDONLY) = 13 > read(13, "226:0\n", 1023) = 6 > close(13) = 0 > openat(12, "engine", O_RDONLY) = 13 > close(12) = 0 > openat(13, "XR24", O_RDONLY) = -1 ENOENT (No such file or directory) > > Test code did not save engine data properly to cause this problem. > So modify the code to save GPU engine information into a globla variable > to avoid test deamon to open incorrect file again. > > Issue: https://gitlab.freedesktop.org/drm/igt-gpu-tools/-/issues/147 > Fixes: 9e635a1c5029 ("tests/kms_busy: Ensure GPU reset when waiting > for a new FB during modeset") please don't break the Fixes: line. Andi