Jun 8 14:55:13 panzersperre kernel: [ 4594.928025] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun Jun 8 14:57:49 panzersperre kernel: [ 4751.396847] perf: interrupt took too long (4969 > 4937), lowering kernel.perf_event_max_sample_rate to 40250 Jun 8 15:15:44 panzersperre kernel: [ 5825.772055] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 Jun 8 15:15:44 panzersperre kernel: [ 5825.772233] IP: gen8_ppgtt_alloc_page_directories.isra.38+0x115/0x250 [i915] Jun 8 15:15:44 panzersperre kernel: [ 5825.772329] PGD 78136067 Jun 8 15:15:44 panzersperre kernel: [ 5825.772331] PUD b964d067 Jun 8 15:15:44 panzersperre kernel: [ 5825.772369] PMD 0 Jun 8 15:15:44 panzersperre kernel: [ 5825.772405] Jun 8 15:15:44 panzersperre kernel: [ 5825.772460] Oops: 0002 [#1] SMP Jun 8 15:15:44 panzersperre kernel: [ 5825.772505] Modules linked in: hid_generic usbhid rfcomm ccm xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack libcrc32c xt_tcpudp bridge stp llc iptable_filter bnep binfmt_misc nls_iso8859_1 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core btusb btrtl videodev btbcm btintel media bluetooth intel_rapl x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm arc4 irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd glue_helper cryptd intel_cstate iwlmvm intel_rapl_perf mac80211 snd_soc_rt298 iwlwifi joydev snd_soc_rt286 input_leds snd_soc_ssm4567 snd_soc_rl6347a snd_soc_core snd_hda_codec_realtek snd_hda_codec_generic serio_raw snd_hda_codec_hdmi Jun 8 15:15:44 panzersperre kernel: [ 5825.773411] snd_compress ac97_bus cfg80211 intel_pch_thermal snd_pcm_dmaengine snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep mei_me mei lpc_ich snd_pcm shpchp snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq thinkpad_acpi snd_seq_device snd_timer nvram snd snd_soc_sst_acpi soundcore snd_soc_sst_match dw_dmac elan_i2c 8250_dw dw_dmac_core i2c_designware_platform i2c_designware_core mac_hid acpi_pad spi_pxa2xx_platform soc_button_array coretemp parport_pc ppdev lp parport ip_tables x_tables autofs4 btrfs xor raid6_pq i915 i2c_algo_bit drm_kms_helper psmouse syscopyarea sysfillrect sysimgblt fb_sys_fops r8169 ahci drm libahci mii wmi video sdhci_acpi i2c_hid sdhci hid fjes Jun 8 15:15:44 panzersperre kernel: [ 5825.774173] CPU: 2 PID: 13163 Comm: spotify Not tainted 4.10.0-21-generic #23-Ubuntu Jun 8 15:15:44 panzersperre kernel: [ 5825.774266] Hardware name: LENOVO 20E8S00600/Intel powered classmate PC, BIOS JHET20WW (1.00 ) 02/24/2015 Jun 8 15:15:44 panzersperre kernel: [ 5825.774379] task: ffff9a9466902d00 task.stack: ffffb9bb80f54000 Jun 8 15:15:44 panzersperre kernel: [ 5825.774497] RIP: 0010:gen8_ppgtt_alloc_page_directories.isra.38+0x115/0x250 [i915] Jun 8 15:15:44 panzersperre kernel: [ 5825.774587] RSP: 0018:ffffb9bb80f57898 EFLAGS: 00010246 Jun 8 15:15:44 panzersperre kernel: [ 5825.774652] RAX: ffff9a9389415a40 RBX: 0000000000000003 RCX: 0000000000000003 Jun 8 15:15:44 panzersperre kernel: [ 5825.774739] RDX: 0000000000000000 RSI: ffff9a9365bd8000 RDI: ffff9a9460780000 Jun 8 15:15:44 panzersperre kernel: [ 5825.774825] RBP: ffffb9bb80f578f0 R08: 0000000000000000 R09: 0000000000000000 Jun 8 15:15:44 panzersperre kernel: [ 5825.774925] R10: 0000000000000000 R11: 0000000000000002 R12: ffff9a93c3dd8000 Jun 8 15:15:44 panzersperre kernel: [ 5825.775019] R13: ffff9a93a9ed0230 R14: 00000000fffd7000 R15: 0000000000008000 Jun 8 15:15:44 panzersperre kernel: [ 5825.775109] FS: 00007f3a8f7b1ac0(0000) GS:ffff9a946ec80000(0000) knlGS:0000000000000000 Jun 8 15:15:44 panzersperre kernel: [ 5825.775214] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jun 8 15:15:44 panzersperre kernel: [ 5825.775285] CR2: 0000000000000018 CR3: 000000004cfc9000 CR4: 00000000003406e0 Jun 8 15:15:44 panzersperre kernel: [ 5825.775376] Call Trace: Jun 8 15:15:44 panzersperre kernel: [ 5825.775466] gen8_alloc_va_range_3lvl+0xfb/0x9e0 [i915] Jun 8 15:15:44 panzersperre kernel: [ 5825.775542] ? __alloc_pages_nodemask+0xff/0x260 Jun 8 15:15:44 panzersperre kernel: [ 5825.775655] gen8_alloc_va_range+0x23d/0x470 [i915] Jun 8 15:15:44 panzersperre kernel: [ 5825.775772] i915_vma_bind+0x7e/0x170 [i915] Jun 8 15:15:44 panzersperre kernel: [ 5825.775890] __i915_vma_do_pin+0x2a5/0x450 [i915] Jun 8 15:15:44 panzersperre kernel: [ 5825.775990] i915_gem_execbuffer_reserve_vma.isra.31+0x144/0x1b0 [i915] Jun 8 15:15:44 panzersperre kernel: [ 5825.776107] i915_gem_execbuffer_reserve.isra.32+0x39e/0x3d0 [i915] Jun 8 15:15:44 panzersperre kernel: [ 5825.776222] i915_gem_do_execbuffer.isra.38+0x4ca/0x15c0 [i915] Jun 8 15:15:44 panzersperre kernel: [ 5825.776297] ? radix_tree_lookup_slot+0x22/0x50 Jun 8 15:15:44 panzersperre kernel: [ 5825.776356] ? find_get_entry+0x20/0x100 Jun 8 15:15:44 panzersperre kernel: [ 5825.776446] i915_gem_execbuffer2+0xa1/0x1e0 [i915] Jun 8 15:15:44 panzersperre kernel: [ 5825.776527] drm_ioctl+0x21b/0x4c0 [drm] Jun 8 15:15:44 panzersperre kernel: [ 5825.776614] ? i915_gem_execbuffer+0x310/0x310 [i915] Jun 8 15:15:44 panzersperre kernel: [ 5825.776681] do_vfs_ioctl+0xa3/0x610 Jun 8 15:15:44 panzersperre kernel: [ 5825.776731] ? __do_page_fault+0x266/0x4e0 Jun 8 15:15:44 panzersperre kernel: [ 5825.776784] SyS_ioctl+0x79/0x90 Jun 8 15:15:44 panzersperre kernel: [ 5825.776829] entry_SYSCALL_64_fastpath+0x1e/0xad Jun 8 15:15:44 panzersperre kernel: [ 5825.780317] RIP: 0033:0x7f3a8586e987 Jun 8 15:15:44 panzersperre kernel: [ 5825.783408] RSP: 002b:00007ffe53888708 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Jun 8 15:15:44 panzersperre kernel: [ 5825.786705] RAX: ffffffffffffffda RBX: 0000000006cf9c30 RCX: 00007f3a8586e987 Jun 8 15:15:44 panzersperre kernel: [ 5825.789805] RDX: 00007ffe53888750 RSI: 00000000c0406469 RDI: 0000000000000014 Jun 8 15:15:44 panzersperre kernel: [ 5825.793611] RBP: 0000000000101001 R08: 0000000000000000 R09: 0000000000000000 Jun 8 15:15:44 panzersperre kernel: [ 5825.796556] R10: 0000000000000038 R11: 0000000000000246 R12: 00007f3a7478ed54 Jun 8 15:15:44 panzersperre kernel: [ 5825.799901] R13: 0000000000000003 R14: 00007f3a8e5771c0 R15: 0000000009a295b0 Jun 8 15:15:44 panzersperre kernel: [ 5825.803033] Code: e6 48 8b 90 20 03 00 00 48 8b b8 d8 02 00 00 48 8b 52 08 48 83 ca 03 e8 aa cd ff ff 48 8b 45 b0 48 8b 4d c8 48 8b 10 48 8b 45 d0 <4c> 89 24 ca 48 0f ab 08 0f 1f 44 00 00 e9 53 ff ff ff 65 8b 05 Jun 8 15:15:44 panzersperre kernel: [ 5825.809372] RIP: gen8_ppgtt_alloc_page_directories.isra.38+0x115/0x250 [i915] RSP: ffffb9bb80f57898 Jun 8 15:15:44 panzersperre kernel: [ 5825.812445] CR2: 0000000000000018 Jun 8 15:15:44 panzersperre kernel: [ 5825.829926] ---[ end trace 18b9b251ae9715e5 ]---