[ 53.691790] BUG: unable to handle kernel paging request at ffffc9000124d000 [ 53.698507] [drm:i915_gem_open] [ 53.703445] IP: [] ftrace_raw_event_i915_context+0x53/0x80 [i915] [ 53.712229] PGD 24688f067 PUD 2468a0067 PMD a9581067 PTE 0 [ 53.718547] Oops: 0000 [#1] SMP [ 53.722264] Modules linked in: binfmt_misc(E) cfg80211(E) nls_iso8859_1(E) snd_hda_codec_hdmi(E) asix(E) usbnet(E) mii(E) intel_rapl(E) snd_hda_intel(E) hid_generic(E) iosf_mbi(E) snd_hda_ codec(E) x86_pkg_temp_thermal(E) snd_hda_core(E) intel_powerclamp(E) snd_hwdep(E) coretemp(E) snd_pcm(E) kvm_intel(E) snd_seq_midi(E) kvm(E) snd_seq_midi_event(E) crct10dif_pclmul(E) snd_rawm idi(E) crc32_pclmul(E) ghash_clmulni_intel(E) snd_seq(E) aesni_intel(E) snd_seq_device(E) snd_timer(E) aes_x86_64(E) i915(E) lrw(E) gf128mul(E) glue_helper(E) ablk_helper(E) cryptd(E) drm_kms _helper(E) drm(E) serio_raw(E) i2c_algo_bit(E) snd(E) mei_me(E) mei(E) lpc_ich(E) soundcore(E) winbond_cir(E) rc_core(E) i2c_hid(E) dw_dmac(E) dw_dmac_core(E) video(E) 8250_dw(E) i2c_designwa re_platform(E) i2c_designware_core(E) spi_pxa2xx_platform(E) acpi_pad(E) mac_hid(E) usbhid(E) hid(E) parport_pc(E) ppdev(E) lp(E) parport(E) autofs4(E) sdhci_acpi(E) ahci(E) libahci(E) sdhci( E) [ 53.818335] CPU: 3 PID: 1487 Comm: compiz Tainted: G U E 4.1.0+ #3 [ 53.826477] Hardware name: Intel Corporation Broadwell Client platform/WhiteTip Mountain 1, BIOS BDW-E1R1.86C.0080.R01.1406120446 06/12/2014 [ 53.840824] task: ffff8800a998e440 ti: ffff880242214000 task.ti: ffff880242214000 [ 53.849337] RIP: 0010:[] [] ftrace_raw_event_i915_context+0x53/0x80 [i915] [ 53.860853] RSP: 0018:ffff880242217b98 EFLAGS: 00010282 [ 53.866893] RAX: ffff88024573601c RBX: 0000000000000000 RCX: 0000000000000008 [ 53.875009] RDX: ffffc9000124d000 RSI: 0000000000000000 RDI: ffff880242217b98 [ 53.883124] RBP: ffff880242217be8 R08: ffff880245736010 R09: 000000000000002c [ 53.891240] R10: 0000000c80477c9c R11: 0000000000000008 R12: ffff880243f89058 [ 53.899355] R13: ffff8802438bfa00 R14: ffff880242217c48 R15: ffff880243d31ef0 [ 53.907471] FS: 00007f22043ea780(0000) GS:ffff88024f4c0000(0000) knlGS:0000000000000000 [ 53.916673] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.924550] CR2: ffffc9000124d000 CR3: 00000002429e7000 CR4: 00000000003407e0 [ 53.934011] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.943445] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.952870] Stack: [ 53.956465] ffff880246806100 ffff880245736010 ffff880243f89058 ffff88024573601c [ 53.966240] 0000000000000296 ffff880200000000 ffff8802438bfa00 ffff880234586e20 [ 53.976516] ffff8802438bfa00 ffff880243d31ef0 ffff880242217c08 ffffffffa023ab3d [ 53.986286] Call Trace: [ 53.990392] [] i915_gem_context_free+0xbd/0x100 [i915] [ 53.999447] [] i915_gem_request_free+0xd0/0xe0 [i915] [ 54.008396] [] intel_execlists_retire_requests+0x188/0x1d0 [i915] [ 54.018537] [] i915_gem_retire_requests+0xfc/0x110 [i915] [ 54.027882] [] i915_gem_userptr_init__mmu_notifier+0xae/0x2e0 [i915] [ 54.038297] [] i915_gem_userptr_ioctl+0x252/0x320 [i915] [ 54.047512] [] ? unlock_page+0x69/0x70 [ 54.054966] [] drm_ioctl+0x349/0x670 [drm] [ 54.062799] [] ? __i915_gem_userptr_get_pages_worker+0x2e0/0x2e0 [i915] [ 54.073482] [] ? acct_account_cputime+0x1c/0x20 [ 54.081785] [] do_vfs_ioctl+0x2f8/0x510 [ 54.089280] [] ? rcu_eqs_enter+0x68/0x90 [ 54.096851] [] ? context_tracking_user_exit+0x13/0x20 [ 54.105714] [] SyS_ioctl+0x81/0xa0 [ 54.112692] [] ? context_tracking_user_enter+0x13/0x20 [ 54.121652] [] ? syscall_trace_leave+0xa5/0x120 [ 54.129914] [] system_call_fastpath+0x16/0x75 [ 54.137972] Code: 7d b0 ba 20 00 00 00 4c 89 e6 e8 b9 06 ef e0 48 85 c0 74 28 4c 89 68 10 49 8b 55 38 48 8d 7d b0 48 89 50 18 49 8b 55 10 48 8b 12 <48> 8b 12 48 8b 52 38 8b 12 89 50 08 e8 bc 22 ef e0 48 83 c4 38 [ 54.161431] RIP [] ftrace_raw_event_i915_context+0x53/0x80 [i915] [ 54.171571] RSP [ 54.176849] CR2: ffffc9000124d000 [ 54.190346] ---[ end trace 2590164a9e979a64 ]---