[Bug 89303] New: WARNING: CPU: 0 PID: 0 at drivers/gpu/drm/i915/intel_display.c:9711 with 4.0-rc1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89303

            Bug ID: 89303
           Summary: WARNING: CPU: 0 PID: 0 at
                    drivers/gpu/drm/i915/intel_display.c:9711 with 4.0-rc1
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: jwboyer at fedoraproject.org
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

We have a report [1] of the following backtrace with the 4.0-rc1 kernel:

WARNING: CPU: 0 PID: 0 at drivers/gpu/drm/i915/intel_display.c:9711
intel_check_page_flip+0xdb/0xf0 [i915]()
Kicking stuck page flip: queued at 11492, now 11497
Modules linked in: ccm bnep bluetooth 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_nat
ebtable_broute bridge ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6
nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw
ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4
nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw
rtsx_usb_ms memstick intel_rapl iosf_mbi arc4 x86_pkg_temp_thermal rtl8192ce
rtl_pci coretemp rtl8192c_common kvm_intel rtlwifi kvm snd_hda_codec_hdmi
mac80211 crct10dif_pclmul iTCO_wdt iTCO_vendor_support snd_hda_codec_realtek
snd_hda_codec_generic crc32_pclmul sparse_keymap crc32c_intel
 cfg80211 snd_hda_intel snd_hda_controller ghash_clmulni_intel snd_hda_codec
snd_hwdep snd_seq snd_seq_device snd_pcm rfkill snd_timer snd soundcore
serio_raw mei_me mei shpchp i2c_i801 lpc_ich tpm_tis tpm wmi nfsd auth_rpcgss
nfs_acl lockd grace sunrpc i915 rtsx_usb_sdmmc i2c_algo_bit drm_kms_helper
mmc_core drm 8021q garp stp llc mrp r8169 mii rtsx_usb mfd_core video uas
usb_storage
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.0.0-0.rc1.git0.1.fc22.x86_64 #1
Hardware name: WB WB-B06211/WB-B0621, BIOS EB062IWB V1.0 12/12/2013
 0000000000000000 e29f8732215d5724 ffff88011f203cf8 ffffffff8177fc48
 0000000000000000 ffff88011f203d50 ffff88011f203d38 ffffffff8109c7ba
 ffff88011f203d68 ffff8800367f3800 ffff8800365a5000 0000000000000000
Call Trace:
 <IRQ>  [<ffffffff8177fc48>] dump_stack+0x45/0x57
 [<ffffffff8109c7ba>] warn_slowpath_common+0x8a/0xc0
 [<ffffffff8109c845>] warn_slowpath_fmt+0x55/0x70
 [<ffffffffa019900b>] intel_check_page_flip+0xdb/0xf0 [i915]
 [<ffffffffa016515c>] ironlake_irq_handler+0x42c/0x1000 [i915]
 [<ffffffff811069dd>] ? hrtimer_get_next_event+0x3d/0x90
 [<ffffffff814a9fdd>] ? credit_entropy_bits+0x26d/0x2d0
 [<ffffffff8110594a>] ? get_next_timer_interrupt+0x1fa/0x270
 [<ffffffffa0593384>] ? _rtl_pci_interrupt+0x1b4/0x410 [rtl_pci]
 [<ffffffff810f4be7>] handle_irq_event_percpu+0x77/0x1a0
 [<ffffffff810f4d4b>] handle_irq_event+0x3b/0x60
 [<ffffffff810f7f3e>] handle_edge_irq+0x6e/0x120
 [<ffffffff81017534>] handle_irq+0x74/0x140
 [<ffffffff810a00b1>] ? _local_bh_enable+0x21/0x50
 [<ffffffff81788dcf>] do_IRQ+0x4f/0xf0
 [<ffffffff81786b2d>] common_interrupt+0x6d/0x6d
 <EOI>  [<ffffffff81616cbd>] ? cpuidle_enter_state+0x5d/0x170
 [<ffffffff81616cad>] ? cpuidle_enter_state+0x4d/0x170
 [<ffffffff81616fb7>] cpuidle_enter+0x17/0x20
 [<ffffffff810df9d9>] cpu_startup_entry+0x349/0x3e0
 [<ffffffff81776547>] rest_init+0x77/0x80
 [<ffffffff81d3803f>] start_kernel+0x4a0/0x4c1
 [<ffffffff81d37120>] ? early_idt_handlers+0x120/0x120
 [<ffffffff81d37339>] x86_64_start_reservations+0x2a/0x2c
 [<ffffffff81d3749c>] x86_64_start_kernel+0x161/0x184

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1195870

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