I built the attached patch and put the binaries at [1]. It would be nice to have someone test it before we push it for review and maybe respin.
[1] http://people.canonical.com/~cascardo/lp1658999/ ** Patch added: "0001-UBUNTU-SAUCE-i915_bpo-change-WARN_ON-wm_changed-to-n.patch" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1658999/+attachment/4809051/+files/0001-UBUNTU-SAUCE-i915_bpo-change-WARN_ON-wm_changed-to-n.patch -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1658999 Title: [Xenial Regression] Kernel panics on HDMI in Xenial Status in linux package in Ubuntu: Triaged Bug description: sabdfl is on a Dell XPS 15 and seeing kernel panics on HDMI connect with a wide range of displays. He's running 4.4.0-62.83 and notes this is definitely a regression as it was working previously. Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.995791] ------------[ cut here ]------------ Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.995842] WARNING: CPU: 4 PID: 2548 at /build/linux-W6HB68/linux-4.4.0/ubuntu/i915/intel_pm.c:3675 skl_update_other_pipe_wm+0x16c/0x180 [i915_bpo]() Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.995846] WARN_ON(!wm_changed) Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.995849] Modules linked in: xt_REDIRECT nf_nat_redirect xt_hl xt_conntrack xt_addrtype overlay aufs rfcomm xt_CHECKSUM iptable_mangle xt_tcpudp ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_comment iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack bridge stp llc bnep binfmt_misc snd_hda_codec_hdmi dell_led snd_hda_codec_realtek snd_hda_codec_generic zfs(PO) zunicode(PO) zcommon(PO) znvpair(PO) spl(O) zavl(PO) nls_iso8859_1 dell_wmi dell_laptop dcdbas snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm brcmfmac snd_seq_midi brcmutil snd_seq_midi_event rtsx_pci_ms cfg80211 memstick intel_rapl x86_pkg_temp_thermal intel_powerclamp snd_rawmidi coretemp crct10dif_pclmul crc32_pclmul snd_seq ghash_clmulni_intel aesni_intel uvcvideo aes_x86_64 videobuf2_vmalloc btusb cdc_ether lrw videobuf2_memops snd_seq_device gf128mul usbnet videobuf2_v4l2 btrtl glue_helper snd_timer ablk_helper videobuf2_core cryptd r8152 v4l2_common hid_multitouch mii videodev snd media joydev input_leds serio_raw soundcore idma64 virt_dma mei_me mei processor_thermal_device shpchp intel_lpss_pci intel_soc_dts_iosf intel_lpss_acpi intel_lpss hci_uart btbcm btqca btintel int3403_thermal bluetooth dell_smo8800 intel_hid int3400_thermal mac_hid acpi_thermal_rel sparse_keymap int3402_thermal int340x_thermal_zone acpi_pad acpi_als kfifo_buf industrialio kvm_intel kvm irqbypass iptable_filter ip_tables ip6table_filter ip6_tables x_tables parport_pc ppdev lp parport autofs4 usbhid rtsx_pci_sdmmc nouveau i915_bpo mxm_wmi intel_ips ttm i2c_algo_bit drm_kms_helper psmouse syscopyarea sysfillrect sysimgblt fb_sys_fops ahci nvme rtsx_pci drm libahci i2c_hid hid wmi pinctrl_sunrisepoint video pinctrl_intel fjes Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996021] CPU: 4 PID: 2548 Comm: Xorg Tainted: P O 4.4.0-62-generic #83-Ubuntu Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996024] Hardware name: Dell Inc. XPS 15 9550/0N7TVV, BIOS 01.02.00 04/07/2016 Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996027] 0000000000000286 000000005b61ce69 ffff880880293920 ffffffff813f7c63 Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996033] ffff880880293968 ffffffffc02be9a0 ffff880880293958 ffffffff810812d2 Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996037] ffff88089255f000 ffff88089160a148 ffff88089255e000 ffff880892644b78 Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996042] Call Trace: Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996051] [<ffffffff813f7c63>] dump_stack+0x63/0x90 Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996059] [<ffffffff810812d2>] warn_slowpath_common+0x82/0xc0 Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996064] [<ffffffff8108136c>] warn_slowpath_fmt+0x5c/0x80 Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996101] [<ffffffffc01dffec>] skl_update_other_pipe_wm+0x16c/0x180 [i915_bpo] Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996136] [<ffffffffc01e0185>] skl_update_wm+0x185/0x610 [i915_bpo] Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996190] [<ffffffffc02713af>] ? intel_ddi_enable_transcoder_func+0x17f/0x260 [i915_bpo] Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996225] [<ffffffffc01e3f0e>] intel_update_watermarks+0x1e/0x30 [i915_bpo] Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996276] [<ffffffffc0253681>] haswell_crtc_enable+0x761/0x8e0 [i915_bpo] Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996327] [<ffffffffc024f586>] intel_atomic_commit+0x5d6/0x14a0 [i915_bpo] Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996366] [<ffffffffc00d3bde>] ? drm_atomic_check_only+0x18e/0x590 [drm] Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996397] [<ffffffffc00d4017>] drm_atomic_commit+0x37/0x60 [drm] Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996415] [<ffffffffc017fdc6>] drm_atomic_helper_set_config+0x76/0xb0 [drm_kms_helper] Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996443] [<ffffffffc00c2e42>] drm_mode_set_config_internal+0x62/0x100 [drm] Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996472] [<ffffffffc00c749c>] drm_mode_setcrtc+0x3cc/0x4f0 [drm] Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996493] [<ffffffffc00b8752>] drm_ioctl+0x152/0x540 [drm] Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996519] [<ffffffffc00c70d0>] ? drm_mode_setplane+0x1b0/0x1b0 [drm] Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996527] [<ffffffff812227af>] do_vfs_ioctl+0x29f/0x490 Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996533] [<ffffffff8108e561>] ? __set_task_blocked+0x41/0xa0 Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996539] [<ffffffff81090ef6>] ? __set_current_blocked+0x36/0x60 Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996543] [<ffffffff81222a19>] SyS_ioctl+0x79/0x90 Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996548] [<ffffffff810911ae>] ? SyS_rt_sigprocmask+0x8e/0xc0 Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996555] [<ffffffff818385f2>] entry_SYSCALL_64_fastpath+0x16/0x71 Jan 24 08:32:31 mark-XPS-15-9550 kernel: [ 489.996559] ---[ end trace 62a7d2128b4c1405 ]--- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1658999/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
