Hi Janusz, On 2023-08-22 at 09:58:58 +0200, Janusz Krzysztofik wrote: > Sometimes our health check is not able to find a device node (cardX or > renderY) after driver rebind or device rediscover. Since device nodes are > recreated in detmpvfs asynchronously, give it a bit of time to do its job > before we try to reopen the device for health check. > > (core_hotunplug:3612) DEBUG: Test requirement passed: priv->fd.drm == -1 > (core_hotunplug:3612) DEBUG: reopening DRM device for health check > (core_hotunplug:3612) drmtest-DEBUG: Looking for devices to open using filter 0: sys:/sys/devices/pci0000:4a/0000:4a:02.0/0000:4b:00.0/0000:4c:01.0/0000:4d:00.0 > (core_hotunplug:3612) drmtest-DEBUG: Filter matched /dev/dri/card1 | /dev/dri/renderD128 > (core_hotunplug:3612) drmtest-DEBUG: Opened previously opened device: /dev/dri/card1 > (core_hotunplug:3612) DEBUG: running device sysfs healthcheck > (core_hotunplug:3612) DEBUG: closing health checked device instance > (core_hotunplug:3612) DEBUG: reopening render device for health check > (core_hotunplug:3612) drmtest-DEBUG: Looking for devices to open using filter 0: sys:/sys/devices/pci0000:4a/0000:4a:02.0/0000:4b:00.0/0000:4c:01.0/0000:4d:00.0 > (core_hotunplug:3612) drmtest-DEBUG: Filter matched /dev/dri/card1 | /dev/dri/renderD128 > (core_hotunplug:3612) drmtest-INFO: Opened device: /dev/dri/renderD128 > (core_hotunplug:3612) DEBUG: running device sysfs healthcheck > (core_hotunplug:3612) DEBUG: closing health checked device instance > (core_hotunplug:3612) DEBUG: Test requirement passed: healthcheck(priv, false) > (core_hotunplug:3612) DEBUG: Test requirement passed: priv->fd.drm_hc == -1 > (core_hotunplug:3612) igt_kmod-DEBUG: Module snd_hda_intel unloaded immediately > (core_hotunplug:3612) INFO: Unloaded audio driver snd_hda_intel > (core_hotunplug:3612) DEBUG: unbinding the driver from the device > (core_hotunplug:3612) DEBUG: rebinding the driver to the device > (core_hotunplug:3612) INFO: Realoading snd_hda_intel > (core_hotunplug:3612) DEBUG: reopening DRM device for health check > (core_hotunplug:3612) drmtest-DEBUG: Looking for devices to open using filter 0: sys:/sys/devices/pci0000:4a/0000:4a:02.0/0000:4b:00.0/0000:4c:01.0/0000:4d:00.0 > (core_hotunplug:3612) drmtest-DEBUG: Filter matched /dev/dri/card1 | > (core_hotunplug:3612) drmtest-DEBUG: Opened previously opened device: /dev/dri/card1 > (core_hotunplug:3612) DEBUG: running device sysfs healthcheck > (core_hotunplug:3612) DEBUG: closing health checked device instance > (core_hotunplug:3612) DEBUG: reopening render device for health check > (core_hotunplug:3612) drmtest-DEBUG: Looking for devices to open using filter 0: sys:/sys/devices/pci0000:4a/0000:4a:02.0/0000:4b:00.0/0000:4c:01.0/0000:4d:00.0 > (core_hotunplug:3612) drmtest-DEBUG: Filter matched /dev/dri/card1 | > (core_hotunplug:3612) CRITICAL: Test assertion failure function local_drm_open_driver, file ../../../usr/src/igt-gpu-tools/tests/core_hotunplug.c:130: > (core_hotunplug:3612) CRITICAL: Failed assertion: fd_drm >= 0 > (core_hotunplug:3612) CRITICAL: file descriptor fd_drm failed > > Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8830 > Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/500 > Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@xxxxxxxxxxxxxxx> > Cc: Petri Latvala <adrinael@xxxxxxxxxxxx> Reviewed-by: Kamil Konieczny <kamil.konieczny@xxxxxxxxxxxxxxx> > --- > tests/core_hotunplug.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c > index 30d9a6a576..b254447c71 100644 > --- a/tests/core_hotunplug.c > +++ b/tests/core_hotunplug.c > @@ -501,6 +501,9 @@ static void node_healthcheck(struct hotunplug *priv, unsigned flags) > > static bool healthcheck(struct hotunplug *priv, bool recover) > { > + /* give udev some time to recreate device nodes before we continue */ > + sleep(1); > + > /* device name may have changed, rebuild IGT device list */ > igt_devices_scan(true); > > -- > 2.41.0 >
