I set set the debugging flag as suggested by the online docs for reporting GPU hang bugs and I'm seeing the logs fill up with messages. I didn't think that was surprising but actually poking around it looks like they don't get lots of messages generally, all the messages are generated by the mouse pointer moving. IIs it expected that moving the mouse pointer would generate lots of debugging output? I'm guessing if that's the only output it's intended that the debugging logs only generate messages on less common events? # cat /proc/cmdline BOOT_IMAGE=/vmlinuz-4.3.0-trunk-amd64 root=/dev/mapper/pixel-root ro quiet drm.debug=0x1e log_buf_len=1M These debug logs get generated for every movement of the mouse pointer: Nov 28 14:51:12 pixel kernel: [ 234.942620] [drm:drm_atomic_state_init] Allocated atomic state ffff8800a5fc2400 Nov 28 14:51:12 pixel kernel: [ 234.942626] [drm:drm_atomic_get_plane_state] Added [PLANE:20] ffff88014892edc0 state to ffff8800a5fc2400 Nov 28 14:51:12 pixel kernel: [ 234.942628] [drm:drm_atomic_get_crtc_state] Added [CRTC:21] ffff8800a6fb9c00 state to ffff8800a5fc2400 Nov 28 14:51:12 pixel kernel: [ 234.942630] [drm:drm_atomic_set_crtc_for_plane] Link plane state ffff88014892edc0 to [CRTC:21] Nov 28 14:51:12 pixel kernel: [ 234.942631] [drm:drm_atomic_set_fb_for_plane] Set [FB:47] for plane state ffff88014892edc0 Nov 28 14:51:12 pixel kernel: [ 234.942632] [drm:drm_atomic_check_only] checking ffff8800a5fc2400 Nov 28 14:51:12 pixel kernel: [ 234.942638] [drm:intel_plane_atomic_calc_changes] [CRTC:21] has [PLANE:20] with fb 47 Nov 28 14:51:12 pixel kernel: [ 234.942639] [drm:intel_plane_atomic_calc_changes] [PLANE:20] visible 0 -> 1, off 0, on 1, ms 0 Nov 28 14:51:12 pixel kernel: [ 234.942640] [drm:drm_atomic_commit] commiting ffff8800a5fc2400 Nov 28 14:51:12 pixel kernel: [ 234.942662] [drm:drm_atomic_state_default_clear] Clearing atomic state ffff8800a5fc2400 Nov 28 14:51:12 pixel kernel: [ 234.942663] [drm:drm_atomic_state_free] Freeing atomic state ffff8800a5fc2400 Nov 28 14:51:13 pixel kernel: [ 235.217222] [drm:drm_atomic_state_init] Allocated atomic state ffff880148b49200 Nov 28 14:51:13 pixel kernel: [ 235.217226] [drm:drm_atomic_get_plane_state] Added [PLANE:20] ffff88009671a280 state to ffff880148b49200 Nov 28 14:51:13 pixel kernel: [ 235.217228] [drm:drm_atomic_get_crtc_state] Added [CRTC:21] ffff880149d5c400 state to ffff880148b49200 Nov 28 14:51:13 pixel kernel: [ 235.217229] [drm:drm_atomic_set_crtc_for_plane] Link plane state ffff88009671a280 to [CRTC:21] Nov 28 14:51:13 pixel kernel: [ 235.217231] [drm:drm_atomic_set_fb_for_plane] Set [FB:47] for plane state ffff88009671a280 Nov 28 14:51:13 pixel kernel: [ 235.217232] [drm:drm_atomic_check_only] checking ffff880148b49200 Nov 28 14:51:13 pixel kernel: [ 235.217237] [drm:intel_plane_atomic_calc_changes] [CRTC:21] has [PLANE:20] with fb 47 Nov 28 14:51:13 pixel kernel: [ 235.217238] [drm:intel_plane_atomic_calc_changes] [PLANE:20] visible 1 -> 1, off 0, on 0, ms 0 Nov 28 14:51:13 pixel kernel: [ 235.217240] [drm:drm_atomic_commit] commiting ffff880148b49200 Nov 28 14:51:13 pixel kernel: [ 235.217253] [drm:drm_atomic_state_default_clear] Clearing atomic state ffff880148b49200 Nov 28 14:51:13 pixel kernel: [ 235.217255] [drm:drm_atomic_state_free] Freeing atomic state ffff880148b49200 Nov 28 14:51:13 pixel kernel: [ 235.250970] [drm:drm_atomic_state_init] Allocated atomic state ffff880148b55000 Nov 28 14:51:13 pixel kernel: [ 235.250973] [drm:drm_atomic_get_plane_state] Added [PLANE:20] ffff8800a6ce9dc0 state to ffff880148b55000 Nov 28 14:51:13 pixel kernel: [ 235.250975] [drm:drm_atomic_get_crtc_state] Added [CRTC:21] ffff8800a6fb9c00 state to ffff880148b55000 Nov 28 14:51:13 pixel kernel: [ 235.250976] [drm:drm_atomic_set_crtc_for_plane] Link plane state ffff8800a6ce9dc0 to [CRTC:21] Nov 28 14:51:13 pixel kernel: [ 235.250978] [drm:drm_atomic_set_fb_for_plane] Set [FB:47] for plane state ffff8800a6ce9dc0 Nov 28 14:51:13 pixel kernel: [ 235.250979] [drm:drm_atomic_check_only] checking ffff880148b55000 Nov 28 14:51:13 pixel kernel: [ 235.250982] [drm:intel_plane_atomic_calc_changes] [CRTC:21] has [PLANE:20] with fb 47 Nov 28 14:51:13 pixel kernel: [ 235.250984] [drm:intel_plane_atomic_calc_changes] [PLANE:20] visible 1 -> 1, off 0, on 0, ms 0 Nov 28 14:51:13 pixel kernel: [ 235.250985] [drm:drm_atomic_commit] commiting ffff880148b55000 Nov 28 14:51:13 pixel kernel: [ 235.250995] [drm:drm_atomic_state_default_clear] Clearing atomic state ffff880148b55000 Nov 28 14:51:13 pixel kernel: [ 235.250997] [drm:drm_atomic_state_free] Freeing atomic state ffff880148b55000 Nov 28 14:51:14 pixel kernel: [ 236.676789] [drm:drm_atomic_state_init] Allocated atomic state ffff8801494c0600 Nov 28 14:51:14 pixel kernel: [ 236.676794] [drm:drm_atomic_get_plane_state] Added [PLANE:20] ffff88009671a280 state to ffff8801494c0600 Nov 28 14:51:14 pixel kernel: [ 236.676797] [drm:drm_atomic_get_crtc_state] Added [CRTC:21] ffff88009de0a400 state to ffff8801494c0600 Nov 28 14:51:14 pixel kernel: [ 236.676799] [drm:drm_atomic_set_crtc_for_plane] Link plane state ffff88009671a280 to [NOCRTC] Nov 28 14:51:14 pixel kernel: [ 236.676800] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for plane state ffff88009671a280 Nov 28 14:51:14 pixel kernel: [ 236.676802] [drm:drm_atomic_check_only] checking ffff8801494c0600 Nov 28 14:51:14 pixel kernel: [ 236.676807] [drm:intel_plane_atomic_calc_changes] [CRTC:21] has [PLANE:20] with fb -1 Nov 28 14:51:14 pixel kernel: [ 236.676808] [drm:intel_plane_atomic_calc_changes] [PLANE:20] visible 1 -> 0, off 1, on 0, ms 0 Nov 28 14:51:14 pixel kernel: [ 236.676810] [drm:drm_atomic_commit] commiting ffff8801494c0600 Nov 28 14:51:14 pixel kernel: [ 236.676830] [drm:drm_atomic_state_default_clear] Clearing atomic state ffff8801494c0600 Nov 28 14:51:14 pixel kernel: [ 236.676831] [drm:drm_atomic_state_free] Freeing atomic state ffff8801494c0600 -- greg _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
