[ 7.451119] ------------[ cut here ]------------ [ 7.451168] WARNING: CPU: 2 PID: 1576 at /home/apw/COD/linux/drivers/gpu/drm/i915/i915_gem_execbuffer.c:125 eb_lookup_vmas.isra.15+0x345/0x3e0 [i915]() [ 7.451171] GPU use of dumb buffer is illegal. [ 7.451172] Modules linked in: dm_crypt uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media btusb snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic samsung_laptop snd_hda_intel snd_hda_controller intel_rapl snd_hda_codec arc4 iosf_mbi snd_hwdep x86_pkg_temp_thermal intel_powerclamp snd_pcm coretemp iwldvm kvm_intel mac80211 dm_multipath scsi_dh iwlwifi snd_seq_midi kvm crct10dif_pclmul snd_seq_midi_event crc32_pclmul ghash_clmulni_intel snd_rawmidi cryptd cfg80211 snd_seq joydev snd_seq_device snd_timer serio_raw snd lpc_ich soundcore shpchp dell_smo8800 mac_hid mei_me mei parport_pc ppdev lp parport rfcomm bnep bluetooth binfmt_misc btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 raid0 multipath linear [ 7.451224] hid_generic usbhid hid i915 i2c_algo_bit drm_kms_helper psmouse drm ahci r8169 libahci mii wmi video [ 7.451240] CPU: 2 PID: 1576 Comm: Xorg Not tainted 3.19.0-031900rc1-generic #201412210135 [ 7.451242] Hardware name: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C/SAMSUNG_NP1234567890, BIOS P14AAJ 04/15/2013 [ 7.451244] 000000000000007d ffff8800cb107b88 ffffffff817c442a 0000000000000007 [ 7.451248] ffff8800cb107bd8 ffff8800cb107bc8 ffffffff81076bf7 ffff8800cbfb87f0 [ 7.451252] ffff880035675440 ffff880035675340 ffff8800cb107c78 ffff8800ceba0400 [ 7.451256] Call Trace: [ 7.451264] [<ffffffff817c442a>] dump_stack+0x45/0x57 [ 7.451270] [<ffffffff81076bf7>] warn_slowpath_common+0x97/0xe0 [ 7.451274] [<ffffffff81076cf6>] warn_slowpath_fmt+0x46/0x50 [ 7.451297] [<ffffffffc02ab525>] eb_lookup_vmas.isra.15+0x345/0x3e0 [i915] [ 7.451318] [<ffffffffc02ac007>] i915_gem_do_execbuffer.isra.23+0x257/0x710 [i915] [ 7.451357] [<ffffffff811ae3a2>] ? do_linear_fault.isra.61+0x42/0x80 [ 7.451373] [<ffffffff811ae4e6>] ? handle_pte_fault+0x76/0x1b0 [ 7.451389] [<ffffffff8119a91c>] ? vm_mmap_pgoff+0xbc/0xe0 [ 7.451412] [<ffffffffc02ad1d6>] i915_gem_execbuffer2+0xc6/0x2d0 [i915] [ 7.451431] [<ffffffffc01dfe76>] drm_ioctl+0x2e6/0x590 [drm] [ 7.451451] [<ffffffffc02ad110>] ? i915_gem_execbuffer+0x440/0x440 [i915] [ 7.451457] [<ffffffff81208b25>] do_vfs_ioctl+0x75/0x320 [ 7.451462] [<ffffffff81212e95>] ? __fget_light+0x25/0x70 [ 7.451466] [<ffffffff81208e61>] SyS_ioctl+0x91/0xb0 [ 7.451472] [<ffffffff817d172d>] system_call_fastpath+0x16/0x1b [ 7.451481] ---[ end trace a21cde10316dcb26 ]---
Created attachment 161521 [details] dmesg_3.19.0-031900rc1-generic.txt
Created attachment 161531 [details] lspci -vvnn
commit da6b51d007da17fd394405055e2f0109ec5f05f4 Author: Dave Airlie <airlied@redhat.com> Date: Wed Dec 24 13:11:17 2014 +1000 Revert "drm/gem: Warn on illegal use of the dumb buffer interface v2" This reverts commit 355a70183848f21198e9f6296bd646df3478a26d. This had some bad side effects under normal operation, and should have been dropped earlier. Signed-off-by: Dave Airlie <airlied@redhat.com>