I am having similar problems with xenial (Kernel 4.4). Xorg crash, console is "frozen". Machine is up and running (can log in via ssh).
Shutdown/reboot does not work. Machine must be powercycled to be usable again. Seems to occur after screen has been idle for sometime. [ 3301.824747] ------------[ cut here ]------------ [ 3301.824763] WARNING: CPU: 1 PID: 3465 at /build/linux-H9bHY_/linux-4.4.0/include/linux/kref.h:46 drm_framebuffer_reference+0x64/0x70 [drm]() [ 3301.824785] Modules linked in: rfcomm veth ipt_REJECT nf_reject_ipv4 ebtable_filter ebtables ip6table_filter ip6_tables nls_utf8 cifs fscache xt_addrtype xt_conntrack aufs 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 xt_tcpudp iptable_filter ip_tables x_tables uas usb_storage bnep binfmt_misc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core btusb v4l2_common btrtl btbcm joydev btintel videodev snd_usb_audio bluetooth input_leds snd_usbmidi_lib media bridge snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic hp_wmi sparse_keymap snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm 8021q intel_rapl x86_pkg_temp_thermal garp intel_powerclamp mrp coretemp crct10dif_pclmul [ 3301.824804] stp crc32_pclmul llc aesni_intel snd_seq_midi snd_seq_midi_event aes_x86_64 lrw gf128mul snd_rawmidi glue_helper ablk_helper cryptd snd_seq serio_raw snd_seq_device snd_timer mei_me mei snd lpc_ich soundcore 8250_fintek tpm_infineon mac_hid kvm_intel kvm irqbypass ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi parport_pc ppdev sunrpc lp parport autofs4 hid_lenovo hid_generic usbhid hid i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect e1000e sysimgblt fb_sys_fops psmouse ahci drm ptp libahci pps_core wmi fjes video [ 3301.824806] CPU: 1 PID: 3465 Comm: Xorg Not tainted 4.4.0-11-generic #26-Ubuntu [ 3301.824807] Hardware name: Hewlett-Packard HP EliteDesk 800 G1 USDT/18E5, BIOS L01 v02.21 12/17/2013 [ 3301.824808] 0000000000000286 00000000e8c70193 ffff880404323920 ffffffff813e1ec3 [ 3301.824809] 0000000000000000 ffffffffc0080800 ffff880404323958 ffffffff8107fe12 [ 3301.824810] ffff88040551f240 ffff8800d53da900 ffff8800d53da900 ffff88040986d000 [ 3301.824810] Call Trace: [ 3301.824814] [<ffffffff813e1ec3>] dump_stack+0x63/0x90 [ 3301.824817] [<ffffffff8107fe12>] warn_slowpath_common+0x82/0xc0 [ 3301.824818] [<ffffffff8107ff5a>] warn_slowpath_null+0x1a/0x20 [ 3301.824826] [<ffffffffc00589b4>] drm_framebuffer_reference+0x64/0x70 [drm] [ 3301.824835] [<ffffffffc0069c6d>] drm_atomic_set_fb_for_plane+0x2d/0x90 [drm] [ 3301.824842] [<ffffffffc016b47e>] __drm_atomic_helper_set_config+0xde/0x3c0 [drm_kms_helper] [ 3301.824846] [<ffffffffc016c3b1>] restore_fbdev_mode+0x221/0x260 [drm_kms_helper] [ 3301.824855] [<ffffffffc00683da>] ? drm_modeset_lock_all_ctx+0x9a/0xb0 [drm] [ 3301.824860] [<ffffffffc016e593>] drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper] [ 3301.824864] [<ffffffffc016e60d>] drm_fb_helper_set_par+0x2d/0x50 [drm_kms_helper] [ 3301.824881] [<ffffffffc02259aa>] intel_fbdev_set_par+0x1a/0x60 [i915] [ 3301.824882] [<ffffffff814650ef>] ? fb_set_var+0x2ef/0x460 [ 3301.824883] [<ffffffff81465036>] fb_set_var+0x236/0x460 [ 3301.824885] [<ffffffff810b3979>] ? update_curr+0x79/0x160 [ 3301.824888] [<ffffffff8145b34f>] fbcon_blank+0x30f/0x350 [ 3301.824889] [<ffffffff810168b0>] ? __switch_to+0x420/0x5a0 [ 3301.824892] [<ffffffff814f23f3>] do_unblank_screen+0xd3/0x1a0 [ 3301.824893] [<ffffffff814e74e9>] complete_change_console+0x59/0xe0 [ 3301.824894] [<ffffffff814e7c80>] vt_ioctl+0x710/0x12f0 [ 3301.824900] [<ffffffffc004e759>] ? drm_ioctl+0x189/0x540 [drm] [ 3301.824902] [<ffffffff814dafaf>] tty_ioctl+0x35f/0xc40 [ 3301.824904] [<ffffffff8121e3ef>] do_vfs_ioctl+0x29f/0x490 [ 3301.824906] [<ffffffff8120d281>] ? __sb_end_write+0x21/0x30 [ 3301.824907] [<ffffffff8120ae9d>] ? vfs_write+0x15d/0x1a0 [ 3301.824908] [<ffffffff8121e659>] SyS_ioctl+0x79/0x90 [ 3301.824911] [<ffffffff8181c832>] entry_SYSCALL_64_fastpath+0x16/0x71 [ 3301.824911] ---[ end trace 4689e440543b0147 ]--- [ 3301.824936] BUG: unable to handle kernel NULL pointer dereference at 000000000000002a [ 3301.824951] IP: [<ffffffffc020c274>] intel_pin_and_fence_fb_obj+0x184/0x2b0 [i915] [ 3301.824952] PGD 0 [ 3301.824953] Oops: 0000 [#1] SMP [ 3301.824964] Modules linked in: rfcomm veth ipt_REJECT nf_reject_ipv4 ebtable_filter ebtables ip6table_filter ip6_tables nls_utf8 cifs fscache xt_addrtype xt_conntrack aufs 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 xt_tcpudp iptable_filter ip_tables x_tables uas usb_storage bnep binfmt_misc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core btusb v4l2_common btrtl btbcm joydev btintel videodev snd_usb_audio bluetooth input_leds snd_usbmidi_lib media bridge snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic hp_wmi sparse_keymap snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm 8021q intel_rapl x86_pkg_temp_thermal garp intel_powerclamp mrp coretemp crct10dif_pclmul [ 3301.824975] stp crc32_pclmul llc aesni_intel snd_seq_midi snd_seq_midi_event aes_x86_64 lrw gf128mul snd_rawmidi glue_helper ablk_helper cryptd snd_seq serio_raw snd_seq_device snd_timer mei_me mei snd lpc_ich soundcore 8250_fintek tpm_infineon mac_hid kvm_intel kvm irqbypass ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi parport_pc ppdev sunrpc lp parport autofs4 hid_lenovo hid_generic usbhid hid i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect e1000e sysimgblt fb_sys_fops psmouse ahci drm ptp libahci pps_core wmi fjes video [ 3301.824976] CPU: 1 PID: 3465 Comm: Xorg Tainted: G W 4.4.0-11-generic #26-Ubuntu [ 3301.824976] Hardware name: Hewlett-Packard HP EliteDesk 800 G1 USDT/18E5, BIOS L01 v02.21 12/17/2013 [ 3301.824977] task: ffff8800dbab6040 ti: ffff880404320000 task.ti: ffff880404320000 [ 3301.824992] RIP: 0010:[<ffffffffc020c274>] [<ffffffffc020c274>] intel_pin_and_fence_fb_obj+0x184/0x2b0 [i915] [ 3301.824993] RSP: 0018:ffff880404323818 EFLAGS: 00010246 [ 3301.824993] RAX: ffff8800d53da900 RBX: ffff88040bbfdc00 RCX: 0000000000000000 [ 3301.824994] RDX: 0100000000000001 RSI: 0000000000000000 RDI: ffff88040bbfdc00 [ 3301.824994] RBP: ffff8804043238c0 R08: 0000000000000000 R09: ffff88040a809040 [ 3301.824994] R10: ffff88040beb9000 R11: 0000000000000001 R12: 0000000000000000 [ 3301.824995] R13: ffff880405590000 R14: ffff88040551f300 R15: ffff88040551f240 [ 3301.824996] FS: 00007ffbf5dcea00(0000) GS:ffff88041ea40000(0000) knlGS:0000000000000000 [ 3301.824996] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3301.824997] CR2: 000000000000002a CR3: 00000000d572e000 CR4: 00000000001406e0 [ 3301.824997] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3301.824998] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3301.824998] Stack: [ 3301.824999] ffff880404323858 0000000000000000 0000000000000000 ffff8800d53dac00 [ 3301.825000] ffff880405a00800 ffff88040beb9000 ffff880405a00800 00000000e8c70193 [ 3301.825001] ffff88040beb9000 ffff88040986e000 ffff88040c21a000 ffff880405a58000 [ 3301.825001] Call Trace: [ 3301.825016] [<ffffffffc0200852>] ? haswell_crtc_compute_clock+0x12/0x30 [i915] [ 3301.825030] [<ffffffffc0218167>] intel_prepare_plane_fb+0x87/0x140 [i915] [ 3301.825034] [<ffffffffc0168773>] drm_atomic_helper_prepare_planes+0x53/0xc0 [drm_kms_helper] [ 3301.825049] [<ffffffffc0210778>] intel_atomic_commit+0x78/0x6f0 [i915] [ 3301.825059] [<ffffffffc006977e>] ? drm_atomic_check_only+0x18e/0x590 [drm] [ 3301.825068] [<ffffffffc0069527>] ? drm_atomic_add_affected_connectors+0x27/0xf0 [drm] [ 3301.825078] [<ffffffffc0069bb7>] drm_atomic_commit+0x37/0x60 [drm] [ 3301.825082] [<ffffffffc016c3bf>] restore_fbdev_mode+0x22f/0x260 [drm_kms_helper] [ 3301.825091] [<ffffffffc00683da>] ? drm_modeset_lock_all_ctx+0x9a/0xb0 [drm] [ 3301.825095] [<ffffffffc016e593>] drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper] [ 3301.825099] [<ffffffffc016e60d>] drm_fb_helper_set_par+0x2d/0x50 [drm_kms_helper] [ 3301.825114] [<ffffffffc02259aa>] intel_fbdev_set_par+0x1a/0x60 [i915] [ 3301.825115] [<ffffffff814650ef>] ? fb_set_var+0x2ef/0x460 [ 3301.825116] [<ffffffff81465036>] fb_set_var+0x236/0x460 [ 3301.825118] [<ffffffff810b3979>] ? update_curr+0x79/0x160 [ 3301.825119] [<ffffffff8145b34f>] fbcon_blank+0x30f/0x350 [ 3301.825120] [<ffffffff810168b0>] ? __switch_to+0x420/0x5a0 [ 3301.825122] [<ffffffff814f23f3>] do_unblank_screen+0xd3/0x1a0 [ 3301.825123] [<ffffffff814e74e9>] complete_change_console+0x59/0xe0 [ 3301.825124] [<ffffffff814e7c80>] vt_ioctl+0x710/0x12f0 [ 3301.825130] [<ffffffffc004e759>] ? drm_ioctl+0x189/0x540 [drm] [ 3301.825131] [<ffffffff814dafaf>] tty_ioctl+0x35f/0xc40 [ 3301.825133] [<ffffffff8121e3ef>] do_vfs_ioctl+0x29f/0x490 [ 3301.825134] [<ffffffff8120d281>] ? __sb_end_write+0x21/0x30 [ 3301.825135] [<ffffffff8120ae9d>] ? vfs_write+0x15d/0x1a0 [ 3301.825136] [<ffffffff8121e659>] SyS_ioctl+0x79/0x90 [ 3301.825138] [<ffffffff8181c832>] entry_SYSCALL_64_fastpath+0x16/0x71 [ 3301.825147] Code: fa ff 89 d8 48 8b 75 d0 65 48 33 34 25 28 00 00 00 0f 85 39 01 00 00 48 83 ec 80 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 85 c9 75 4e <41> 0f b6 54 24 2a bb 00 00 04 00 80 fa 08 0f 87 08 ff ff ff 41 [ 3301.825162] RIP [<ffffffffc020c274>] intel_pin_and_fence_fb_obj+0x184/0x2b0 [i915] [ 3301.825162] RSP <ffff880404323818> [ 3301.825163] CR2: 000000000000002a [ 3301.825164] ---[ end trace 4689e440543b0148 ]--- -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1535714 Title: i915 freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1535714/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
