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------------------------------------------------------------------------
On 2015-08-21T17:27:47+00:00 NT Man wrote:

$ uname -r
4.2.0-0.rc6.git0.2.fc23.x86_64+debug

[17348.408329] ------------[ cut here ]------------
[17348.408353] WARNING: CPU: 0 PID: 12897 at drivers/gpu/drm/i915/intel_display.c:11098 intel_check_page_flip+0x107/0x120 [i915]()
[17348.408355] Kicking stuck page flip: queued at 1040374, now 1040379
[17348.408356] Modules linked in: snd_seq_dummy nls_utf8 isofs rfcomm fuse xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_broute bridge ebtable_nat ebtable_filter ebtables ip6table_mangle ip6table_raw ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_security ip6table_filter ip6_tables iptable_mangle iptable_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_security bnep vfat hid_logitech_hidpp fat iTCO_wdt iTCO_vendor_support ppdev btrfs intel_rapl iosf_mbi xor joydev btusb btrtl btbcm btintel bluetooth x86_pkg_temp_thermal raid6_pq rfkill coretemp hid_logitech_dj kvm_intel kvm crct10dif_pclmul crc32_pclmul crc32c_intel snd_hda_codec_hdmi
[17348.408401]  ghash_clmulni_intel snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_ca0132 snd_hda_intel snd_hda_codec snd_seq snd_hda_core snd_hwdep snd_seq_device snd_pcm mei_me mei lpc_ich snd_timer i2c_i801 snd shpchp soundcore parport_pc parport tpm_infineon tpm_tis tpm nfsd auth_rpcgss nfs_acl binfmt_misc lockd grace sunrpc uas usb_storage i915 8021q garp stp serio_raw llc i2c_algo_bit mrp drm_kms_helper r8169 mii drm video
[17348.408430] CPU: 0 PID: 12897 Comm: gdb Not tainted 4.2.0-0.rc6.git0.2.fc23.x86_64+debug #1
[17348.408432] Hardware name: Gigabyte Technology Co., Ltd. Z87M-D3H/Z87M-D3H, BIOS F11 08/12/2014
[17348.408433]  0000000000000000 0000000055ba9279 ffff8807fdc03ce8 ffffffff81868d8e
[17348.408436]  0000000000000000 ffff8807fdc03d40 ffff8807fdc03d28 ffffffff810ab406
[17348.408438]  ffff8807fdc03d58 ffff8807f32e7000 ffff8807f29c5000 0000000000000000
[17348.408441] Call Trace:
[17348.408442]  <IRQ>  [<ffffffff81868d8e>] dump_stack+0x4c/0x65
[17348.408451]  [<ffffffff810ab406>] warn_slowpath_common+0x86/0xc0
[17348.408453]  [<ffffffff810ab495>] warn_slowpath_fmt+0x55/0x70
[17348.408466]  [<ffffffffa0166917>] intel_check_page_flip+0x107/0x120 [i915]
[17348.408477]  [<ffffffffa012c028>] ironlake_irq_handler+0x288/0xbf0 [i915]
[17348.408480]  [<ffffffff81026d79>] ? sched_clock+0x9/0x10
[17348.408483]  [<ffffffff810e6ddc>] ? local_clock+0x1c/0x20
[17348.408486]  [<ffffffff8111f0d0>] handle_irq_event_percpu+0x40/0x490
[17348.408488]  [<ffffffff8111f564>] handle_irq_event+0x44/0x70
[17348.408491]  [<ffffffff811228f8>] handle_edge_irq+0x78/0x140
[17348.408493]  [<ffffffff8101f2e2>] handle_irq+0x72/0x120
[17348.408496]  [<ffffffff8112d18e>] ? rcu_irq_enter+0x8e/0xa0
[17348.408499]  [<ffffffff8187575f>] do_IRQ+0x4f/0xe0
[17348.408502]  [<ffffffff818733b0>] common_interrupt+0x70/0x70
[17348.408503]  <EOI>  [<ffffffff8127c72f>] ? unlazy_walk+0x13f/0x310
[17348.408508]  [<ffffffff8127c6fd>] ? unlazy_walk+0x10d/0x310
[17348.408510]  [<ffffffff8127d163>] lookup_fast+0x293/0x3b0
[17348.408513]  [<ffffffff813969a5>] ? security_inode_permission+0x45/0x70
[17348.408515]  [<ffffffff8127d5b9>] walk_component+0x49/0x2a0
[17348.408517]  [<ffffffff8127e2f2>] ? path_init+0x552/0x7f0
[17348.408519]  [<ffffffff8127e2aa>] ? path_init+0x50a/0x7f0
[17348.408521]  [<ffffffff8127e66d>] path_lookupat+0x5d/0x110
[17348.408523]  [<ffffffff81280219>] filename_lookup+0xa9/0x180
[17348.408526]  [<ffffffff8124bd0e>] ? kmem_cache_alloc+0x33e/0x360
[17348.408527]  [<ffffffff8127fe26>] ? getname_flags+0x56/0x1f0
[17348.408531]  [<ffffffff812943e5>] ? mntput_no_expire+0x5/0x3c0
[17348.408533]  [<ffffffff812803ca>] user_path_at_empty+0x3a/0x50
[17348.408536]  [<ffffffff81274476>] vfs_fstatat+0x66/0xc0
[17348.408539]  [<ffffffff81274a0e>] SYSC_newstat+0x2e/0x60
[17348.408542]  [<ffffffff81003044>] ? lockdep_sys_exit_thunk+0x12/0x14
[17348.408545]  [<ffffffff81274b9e>] SyS_newstat+0xe/0x10
[17348.408547]  [<ffffffff8187282e>] entry_SYSCALL_64_fastpath+0x12/0x76
[17348.408550] ---[ end trace f4b96237241a9872 ]---

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1510723/comments/0

------------------------------------------------------------------------
On 2015-08-21T17:29:00+00:00 NT Man wrote:

Created attachment 117841
dmesg

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1510723/comments/1

------------------------------------------------------------------------
On 2015-10-20T09:30:44+00:00 Jani-nikula wrote:

(In reply to mikhail.v.gavrilov from comment #1)
> Created attachment 117841 [details]
> dmesg

Please try latest v4.3-rc kernel. If the problem persists, please add
drm.debug=14 module parameter, and attach the dmesg. Please do not add
ioctl debugging, it's too verbose, and without that you don't need to
compress the logs. Thanks.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1510723/comments/2

------------------------------------------------------------------------
On 2015-10-23T11:38:12+00:00 Jani-nikula wrote:

*** Bug 92636 has been marked as a duplicate of this bug. ***

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1510723/comments/3

------------------------------------------------------------------------
On 2015-10-23T12:30:31+00:00 Jani-nikula wrote:

*** Bug 91345 has been marked as a duplicate of this bug. ***

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1510723/comments/4

------------------------------------------------------------------------
On 2015-10-29T08:13:31+00:00 Serhiy Zahoriya wrote:

Created attachment 119277
dmesg with drm.debug=14

I hope it's really the same problem.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1510723/comments/15


** Changed in: linux
       Status: Unknown => Incomplete

** Changed in: linux
   Importance: Unknown => Medium

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https://bugs.launchpad.net/bugs/1510723

Title:
  intel i915 driver segfaults: WARNING:
  ...drivers/gpu/drm/i915/intel_display.c:11100
  intel_check_page_flip+0xfc/0x110 [i915]()

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  Adding tags for upstream because I've already tested it and it's still
  the case for 4.3-rc7.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-16-generic 4.2.0-16.19
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  ApportVersion: 2.19.1-0ubuntu4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  int        1393 F.... pulseaudio
  CurrentDesktop: KDE
  Date: Wed Oct 28 00:38:55 2015
  HibernationDevice: RESUME=UUID=a9a75bdb-fa57-454a-88c6-9f2c8d324bd0
  MachineType: ASUSTeK COMPUTER INC. X502CA
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-16-generic.efi.signed root=/dev/mapper/ocz-root ro quiet libata.force=1.00:noncq resume=/dev/mapper/ocz-swap_1
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-16-generic N/A
   linux-backports-modules-4.2.0-16-generic  N/A
   linux-firmware                            1.149
  SourcePackage: linux
  UdevLog: Error: [Errno 2] Немає такого файла або каталогу: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/09/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: X502CA.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: X502CA
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX502CA.209:bd06/09/2013:svnASUSTeKCOMPUTERINC.:pnX502CA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX502CA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: X502CA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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