Created attachment 1174903 [details] first (untainted) and second (tainted) kernel oops in intel video driver Description of problem: kernel WARNING that taints kernel, preventing reporting of further problems Version-Release number of selected component (if applicable): xorg-x11-drv-intel-2.99.917-23.20160512.fc24.x86_64 How reproducible: at boot Steps to Reproduce: 1. boot system 2. 3. Actual results: kernel oops in journalctl Expected results: clean boot Additional info: While this bug has been active for many years, the presentation has changed in kernel-4.6 - it bombs at a different place.
For comparison, here is the bug as it presents through kernel-4.5: Jun 27 16:02:09 elissa.gathman.org kernel: ------------[ cut here ]------------ Jun 27 16:02:09 elissa.gathman.org kernel: WARNING: CPU: 1 PID: 1199 at drivers/gpu/drm/i915/intel_display.c:12944 intel_atomic_commit+0x1250/0x1860 [i915]() Jun 27 16:02:09 elissa.gathman.org kernel: encoder detached but still enabled on pipe A. Jun 27 16:02:09 elissa.gathman.org kernel: Modules linked in: ccm ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge ip6table_mangle ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_raw ip6table_security iptable_mangle iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack tun iptable_raw iptable_security ebtable_filter ebtables ip6table_filter ip6_tables arc4 iwl3945 iwlegacy mac80211 iTCO_wdt iTCO_vendor_support gpio_ich dell_wmi sparse_keymap snd_hda_codec_idt snd_hda_codec_generic dell_laptop snd_hda_codec_hdmi dcdbas snd_hda_intel cfg80211 snd_hda_codec dell_smm_hwmon coretemp snd_hda_core snd_hwdep snd_seq joydev snd_seq_device snd_pcm i2c_i801 lpc_ich r592 memstick snd_timer rfkill snd shpchp soundcore acpi_cpufreq tpm_tis tpm Jun 27 16:02:09 elissa.gathman.org kernel: nfsd auth_rpcgss nfs_acl lockd grace mmc_block i915 serio_raw sdhci_pci firewire_ohci sdhci mmc_core ata_generic firewire_core pata_acpi crc_itu_t 8021q garp stp llc mrp i2c_algo_bit drm_kms_helper sky2 drm wmi fjes video hid_logitech_hidpp hid_logitech_dj sunrpc scsi_transport_iscsi Jun 27 16:02:09 elissa.gathman.org kernel: CPU: 1 PID: 1199 Comm: Xorg Not tainted 4.5.7-300.fc24.x86_64 #1 Jun 27 16:02:09 elissa.gathman.org kernel: Hardware name: Dell Inc. Inspiron 1525 /0U990C, BIOS A16 10/16/2008 Jun 27 16:02:09 elissa.gathman.org kernel: 0000000000000286 000000005a0a0460 ffff880076f5faf8 ffffffff813d37df Jun 27 16:02:09 elissa.gathman.org kernel: ffff880076f5fb40 ffffffffa028de60 ffff880076f5fb30 ffffffff810a5f22 Jun 27 16:02:09 elissa.gathman.org kernel: ffff8800347abb48 ffff8800347ae000 ffff8800347ab800 ffff8800347abb60 Jun 27 16:02:09 elissa.gathman.org kernel: Call Trace: Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffff813d37df>] dump_stack+0x63/0x84 Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffff810a5f22>] warn_slowpath_common+0x82/0xc0 Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffff810a5fbc>] warn_slowpath_fmt+0x5c/0x80 Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffffa0229a20>] intel_atomic_commit+0x1250/0x1860 [i915] Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffffa00c1392>] ? drm_atomic_check_only+0x182/0x600 [drm] Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffffa00c0bbf>] ? drm_atomic_set_crtc_for_connector+0x2f/0xe0 [drm] Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffffa00c1847>] drm_atomic_commit+0x37/0x60 [drm] Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffffa0127ba6>] drm_atomic_helper_set_config+0x76/0xb0 [drm_kms_helper] Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffffa00b0b62>] drm_mode_set_config_internal+0x62/0x100 [drm] Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffffa00b527f>] drm_mode_setcrtc+0x2ef/0x520 [drm] Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffffa00b12c9>] ? drm_mode_cursor_common+0x89/0x180 [drm] Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffffa00a6712>] drm_ioctl+0x152/0x540 [drm] Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffff81604ef0>] ? evdev_read+0xd0/0x2d0 Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffffa00b4f90>] ? drm_mode_setplane+0x1b0/0x1b0 [drm] Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffff812562b3>] do_vfs_ioctl+0xa3/0x5d0 Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffff81256859>] SyS_ioctl+0x79/0x90 Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffff81258951>] ? SyS_poll+0x71/0x130 Jun 27 16:02:09 elissa.gathman.org kernel: [<ffffffff817cf06e>] entry_SYSCALL_64_fastpath+0x12/0x6d Jun 27 16:02:09 elissa.gathman.org kernel: ---[ end trace 1e5d0710c793cb95 ]---
Still happening on kernel-4.6. Prevents me from reporting other kernel bugs. Jul 14 13:00:18 localhost kernel: ------------[ cut here ]------------ Jul 14 13:00:18 localhost kernel: WARNING: CPU: 1 PID: 97 at drivers/gpu/drm/drm_irq.c:1326 drm_wait_one_vblank+0x1b5/0x1c0 [drm] Jul 14 13:00:18 localhost kernel: vblank wait timed out on crtc 0 Jul 14 13:00:18 localhost kernel: Modules linked in: i915 sdhci_pci sdhci firewire_ohci mmc_core serio_raw firewire_core ata_generic i2c_algo_bit drm_kms_helper pata_acpi 8021q crc_itu_t garp stp llc mrp drm sky2 wmi fjes video hid_logitech_hidpp hid_logitech_dj sunrpc scsi_transport_iscsi Jul 14 13:00:18 localhost kernel: CPU: 1 PID: 97 Comm: kworker/u4:4 Not tainted 4.6.3-300.fc24.x86_64 #1 Jul 14 13:00:18 localhost kernel: Hardware name: Dell Inc. Inspiron 1525 /0U990C, BIOS A16 10/16/2008 Jul 14 13:00:18 localhost kernel: Workqueue: events_unbound async_run_entry_fn Jul 14 13:00:18 localhost kernel: 0000000000000286 000000005ff2f936 ffff8800348079e8 ffffffff813dbcff Jul 14 13:00:18 localhost kernel: ffff880034807a38 0000000000000000 ffff880034807a28 ffffffff810a740b Jul 14 13:00:18 localhost kernel: 0000052e00000286 ffff880034144000 0000000000000000 0000000000000000 Jul 14 13:00:18 localhost kernel: Call Trace: Jul 14 13:00:18 localhost kernel: [<ffffffff813dbcff>] dump_stack+0x63/0x84 Jul 14 13:00:18 localhost kernel: [<ffffffff810a740b>] __warn+0xcb/0xf0 Jul 14 13:00:18 localhost kernel: [<ffffffff810a748f>] warn_slowpath_fmt+0x5f/0x80 Jul 14 13:00:18 localhost kernel: [<ffffffff810ea9d3>] ? finish_wait+0x53/0x70 Jul 14 13:00:18 localhost kernel: [<ffffffffc00b3ed5>] drm_wait_one_vblank+0x1b5/0x1c0 [drm] Jul 14 13:00:18 localhost kernel: [<ffffffff810eac30>] ? prepare_to_wait_event+0xf0/0xf0 Jul 14 13:00:18 localhost kernel: [<ffffffffc02436d5>] intel_get_load_detect_pipe+0x655/0x670 [i915] Jul 14 13:00:18 localhost kernel: [<ffffffffc027f05f>] intel_tv_detect+0x13f/0x5d0 [i915] Jul 14 13:00:18 localhost kernel: [<ffffffffc0130f3b>] drm_helper_probe_single_connector_modes+0x30b/0x500 [drm_kms_helper] Jul 14 13:00:18 localhost kernel: [<ffffffffc013e23e>] drm_fb_helper_initial_config+0xae/0x420 [drm_kms_helper] Jul 14 13:00:18 localhost kernel: [<ffffffff8102d744>] ? __switch_to+0x274/0x420 Jul 14 13:00:18 localhost kernel: [<ffffffffc02555bf>] intel_fbdev_initial_config+0x1f/0x30 [i915] Jul 14 13:00:18 localhost kernel: [<ffffffff810c997a>] async_run_entry_fn+0x4a/0x140 Jul 14 13:00:18 localhost kernel: [<ffffffff810c0d54>] process_one_work+0x184/0x440 Jul 14 13:00:18 localhost kernel: [<ffffffff810c105e>] worker_thread+0x4e/0x480 Jul 14 13:00:18 localhost kernel: [<ffffffff810c1010>] ? process_one_work+0x440/0x440 Jul 14 13:00:18 localhost kernel: [<ffffffff810c6f48>] kthread+0xd8/0xf0 Jul 14 13:00:18 localhost kernel: [<ffffffff817dd602>] ret_from_fork+0x22/0x40 Jul 14 13:00:18 localhost kernel: [<ffffffff810c6e70>] ? kthread_worker_fn+0x180/0x180 Jul 14 13:00:18 localhost kernel: ---[ end trace d7fb0ae192daa27a ]--- Jul 14 13:00:18 localhost kernel: firewire_core 0000:02:09.0: created device fw0: GUID 354fc0003dcedde1, S400 Jul 14 13:00:18 localhost kernel: ------------[ cut here ]------------ Jul 14 13:00:18 localhost kernel: WARNING: CPU: 1 PID: 97 at drivers/gpu/drm/drm_irq.c:1326 drm_wait_one_vblank+0x1b5/0x1c0 [drm] Jul 14 13:00:18 localhost kernel: vblank wait timed out on crtc 0 Jul 14 13:00:18 localhost kernel: Modules linked in: i915 sdhci_pci sdhci firewire_ohci mmc_core serio_raw firewire_core ata_generic i2c_algo_bit drm_kms_helper pata_acpi 8021q crc_itu_t garp stp llc mrp drm sky2 wmi fjes video hid_logitech_hidpp hid_logitech_dj sunrpc scsi_transport_iscsi Jul 14 13:00:18 localhost kernel: CPU: 1 PID: 97 Comm: kworker/u4:4 Tainted: G W 4.6.3-300.fc24.x86_64 #1 Jul 14 13:00:18 localhost kernel: Hardware name: Dell Inc. Inspiron 1525 /0U990C, BIOS A16 10/16/2008 Jul 14 13:00:18 localhost kernel: Workqueue: events_unbound async_run_entry_fn Jul 14 13:00:18 localhost kernel: 0000000000000286 000000005ff2f936 ffff8800348078e8 ffffffff813dbcff Jul 14 13:00:18 localhost kernel: ffff880034807938 0000000000000000 ffff880034807928 ffffffff810a740b Jul 14 13:00:18 localhost kernel: 0000052e00000286 ffff880034144000 0000000000000000 0000000000000000 Jul 14 13:00:18 localhost kernel: Call Trace: Jul 14 13:00:18 localhost kernel: [<ffffffff813dbcff>] dump_stack+0x63/0x84 Jul 14 13:00:18 localhost kernel: [<ffffffff810a740b>] __warn+0xcb/0xf0 Jul 14 13:00:18 localhost kernel: [<ffffffff810a748f>] warn_slowpath_fmt+0x5f/0x80 Jul 14 13:00:18 localhost kernel: [<ffffffff810ea9d3>] ? finish_wait+0x53/0x70 Jul 14 13:00:18 localhost kernel: [<ffffffffc00b3ed5>] drm_wait_one_vblank+0x1b5/0x1c0 [drm] Jul 14 13:00:18 localhost kernel: [<ffffffff810eac30>] ? prepare_to_wait_event+0xf0/0xf0 Jul 14 13:00:18 localhost kernel: [<ffffffffc023c452>] intel_pre_disable_primary+0x52/0x80 [i915] Jul 14 13:00:18 localhost kernel: [<ffffffffc023c557>] intel_pre_plane_update+0xd7/0x110 [i915] Jul 14 13:00:18 localhost kernel: [<ffffffffc023cf64>] intel_atomic_commit+0x454/0x1640 [i915] Jul 14 13:00:18 localhost kernel: [<ffffffffc00b2f01>] ? vblank_disable_and_save+0x51/0x80 [drm] Jul 14 13:00:18 localhost kernel: [<ffffffffc00cc8f2>] ? drm_atomic_check_only+0x182/0x600 [drm] Jul 14 13:00:18 localhost kernel: [<ffffffffc00ccda7>] drm_atomic_commit+0x37/0x60 [drm] Jul 14 13:00:18 localhost kernel: [<ffffffffc0243713>] intel_release_load_detect_pipe+0x23/0x80 [i915] Jul 14 13:00:18 localhost kernel: [<ffffffffc027f264>] intel_tv_detect+0x344/0x5d0 [i915] Jul 14 13:00:18 localhost kernel: [<ffffffffc0130f3b>] drm_helper_probe_single_connector_modes+0x30b/0x500 [drm_kms_helper] Jul 14 13:00:18 localhost kernel: [<ffffffffc013e23e>] drm_fb_helper_initial_config+0xae/0x420 [drm_kms_helper] Jul 14 13:00:18 localhost kernel: [<ffffffff8102d744>] ? __switch_to+0x274/0x420 Jul 14 13:00:18 localhost kernel: [<ffffffffc02555bf>] intel_fbdev_initial_config+0x1f/0x30 [i915] Jul 14 13:00:18 localhost kernel: [<ffffffff810c997a>] async_run_entry_fn+0x4a/0x140 Jul 14 13:00:18 localhost kernel: [<ffffffff810c0d54>] process_one_work+0x184/0x440 Jul 14 13:00:18 localhost kernel: [<ffffffff810c105e>] worker_thread+0x4e/0x480 Jul 14 13:00:18 localhost kernel: [<ffffffff810c1010>] ? process_one_work+0x440/0x440 Jul 14 13:00:18 localhost kernel: [<ffffffff810c6f48>] kthread+0xd8/0xf0 Jul 14 13:00:18 localhost kernel: [<ffffffff817dd602>] ret_from_fork+0x22/0x40 Jul 14 13:00:18 localhost kernel: [<ffffffff810c6e70>] ? kthread_worker_fn+0x180/0x180 Jul 14 13:00:18 localhost kernel: ---[ end trace d7fb0ae192daa27b ]---
This is far worse in kernel-4.8. Looks like I forgot I filed this, and entered bz#1394015. But since the new symptoms seriously affect usability, maybe it deserves a new bz.
*** This bug has been marked as a duplicate of bug 1342755 ***