[ 1.456257] ------------[ cut here ]------------ [ 1.456282] WARNING: CPU: 0 PID: 129 at /home/kernel/COD/linux/include/linux/kref.h:47 drm_framebuffer_reference+0x6e/0x80 [drm]() [ 1.456284] Modules linked in: i915(+) i2c_algo_bit drm_kms_helper psmouse ahci r8169 libahci drm mii wmi video [ 1.456299] CPU: 0 PID: 129 Comm: systemd-udevd Not tainted 4.0.0-040000rc5-generic #201503230035 [ 1.456301] Hardware name: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C/SAMSUNG_NP1234567890, BIOS P14AAJ 04/15/2013 [ 1.456303] 000000000000002f ffff8800358738e8 ffffffff817dfeea 00000000000022a0 [ 1.456307] 0000000000000000 ffff880035873928 ffffffff810791b7 ffff880035bb87e8 [ 1.456311] ffff880035eef900 ffff880035eef900 0000000000000000 ffff880119216000 [ 1.456314] Call Trace: [ 1.456322] [<ffffffff817dfeea>] dump_stack+0x45/0x57 [ 1.456328] [<ffffffff810791b7>] warn_slowpath_common+0x97/0xe0 [ 1.456333] [<ffffffff8107921a>] warn_slowpath_null+0x1a/0x20 [ 1.456348] [<ffffffffc00b035e>] drm_framebuffer_reference+0x6e/0x80 [drm] [ 1.456366] [<ffffffffc00c1d66>] drm_atomic_set_fb_for_plane+0x36/0xa0 [drm] [ 1.456410] [<ffffffffc0217ccd>] update_state_fb.isra.42+0x1d/0x20 [i915] [ 1.456443] [<ffffffffc021ff70>] ironlake_get_initial_plane_config+0x290/0x3a0 [i915] [ 1.456477] [<ffffffffc022b374>] intel_modeset_init+0x244/0x370 [i915] [ 1.456516] [<ffffffffc025e22f>] i915_load_modeset_init+0xbf/0x190 [i915] [ 1.456552] [<ffffffffc025ea06>] i915_driver_load+0x5d6/0x800 [i915] [ 1.456566] [<ffffffffc00a9b6d>] drm_dev_register+0xbd/0x110 [drm] [ 1.456581] [<ffffffffc00ac9a9>] drm_get_pci_dev+0x89/0x190 [drm] [ 1.456606] [<ffffffffc01b3c9b>] i915_pci_probe+0x3b/0x60 [i915] [ 1.456612] [<ffffffff8140198e>] local_pci_probe+0x4e/0xa0 [ 1.456616] [<ffffffff81402af5>] ? pci_match_device+0xe5/0x110 [ 1.456620] [<ffffffff81402c19>] __pci_device_probe+0xb9/0xf0 [ 1.456624] [<ffffffff81402c8a>] pci_device_probe+0x3a/0x60 [ 1.456630] [<ffffffff8150dfd1>] really_probe+0x91/0x380 [ 1.456634] [<ffffffff8150e447>] driver_probe_device+0x47/0xa0 [ 1.456638] [<ffffffff8150e54b>] __driver_attach+0xab/0xb0 [ 1.456642] [<ffffffff8150e4a0>] ? driver_probe_device+0xa0/0xa0 [ 1.456646] [<ffffffff8150c32e>] bus_for_each_dev+0x5e/0x90 [ 1.456650] [<ffffffff8150db7e>] driver_attach+0x1e/0x20 [ 1.456654] [<ffffffff8150d704>] bus_add_driver+0x124/0x260 [ 1.456659] [<ffffffff8150ee24>] driver_register+0x64/0xf0 [ 1.456662] [<ffffffffc02c7000>] ? 0xffffffffc02c7000 [ 1.456666] [<ffffffff81401d0c>] __pci_register_driver+0x4c/0x50 [ 1.456679] [<ffffffffc00acbaa>] drm_pci_init+0xfa/0x130 [drm] [ 1.456682] [<ffffffffc02c7000>] ? 0xffffffffc02c7000 [ 1.456706] [<ffffffffc02c70a0>] i915_init+0xa0/0xa8 [i915] [ 1.456709] [<ffffffffc02c7000>] ? 0xffffffffc02c7000 [ 1.456713] [<ffffffff81002157>] do_one_initcall+0xd7/0x200 [ 1.456717] [<ffffffff811de13d>] ? kmem_cache_alloc_trace+0x19d/0x210 [ 1.456722] [<ffffffff817d59c7>] do_init_module+0x61/0x1ce [ 1.456726] [<ffffffff8110059e>] load_module+0x49e/0x5f0 [ 1.456731] [<ffffffff810fd600>] ? show_initstate+0x50/0x50 [ 1.456734] [<ffffffff8110089e>] SyS_finit_module+0xae/0xd0 [ 1.456739] [<ffffffff817ec6cd>] system_call_fastpath+0x16/0x1b [ 1.456742] ---[ end trace b8f5aa411087fa51 ]---
Created attachment 171881 [details] lspci -vvnn
Created attachment 171891 [details] dmesg_4.0.0-040000rc5-generic.txt
Try 4.0.0-rc6, should be fixed there. I have reported a different aspect of this in Bug 95541 and noticed that at least my bug disappeared in 4.0.0-rc6.
Long time no updates, closing. If the problem persists with latest kernels, please file a bug at the freedesktop.org bugzilla [1], referencing this bug. Thank you. [1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel