| Bug ID | 91960 |
|---|---|
| Summary | [i915] kernel warning hsw_unclaimed_reg_debug intel_uncore.c:619 |
| Product | DRI |
| Version | unspecified |
| Hardware | Other |
| OS | All |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | General |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | alexandru.damian@intel.com |
Ubuntu mainline kernel http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/current/linux-image-4.2.0-994-generic_4.2.0-994.201509092200_amd64.deb Hardware Macbook Pro 12,1 backtrace [ 3079.596981] WARNING: CPU: 2 PID: 0 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_uncore.c:619 hsw_unclaimed_reg_debug.isra.14+0x78/0xa0 [i915]() [ 3079.596982] Unclaimed register detected before writing to register 0x223a0 [ 3079.596983] Modules linked in: pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) nls_iso8859_1 snd_hda_codec_hdmi joydev applesmc input_polldev btusb btrtl intel_rapl iosf_mbi x86_pkg_temp_thermal btbcm intel_powerclamp btintel bcm5974 coretemp bluetooth snd_hda_codec_cirrus input_leds hid_microsoft snd_hda_codec_generic kvm_intel kvm snd_hda_intel snd_hda_codec snd_hda_core crct10dif_pclmul snd_hwdep crc32_pclmul snd_pcm ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper snd_seq_midi ablk_helper snd_seq_midi_event cryptd i915 snd_rawmidi brcmfmac snd_seq brcmutil cfg80211 lpc_ich bdc_pci drm_kms_helper snd_seq_device snd_timer drm shpchp i2c_algo_bit fb_sys_fops snd syscopyarea mei_me sysfillrect sysimgblt mei soundcore sbs spi_pxa2xx_platform acpi_als sbshc kfifo_buf [ 3079.597024] industrialio mac_hid video apple_bl parport_pc ppdev lp parport nfsd auth_rpcgss nfs_acl lockd grace sunrpc autofs4 hid_apple hid_generic usbhid hid uas ahci usb_storage libahci [ 3079.597034] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G OE 4.2.0-994-generic #201509092200 [ 3079.597036] Hardware name: Apple Inc. MacBookPro12,1/Mac-E43C1C25D4880AD6, BIOS MBP121.88Z.0167.B07.1506051617 06/05/2015 [ 3079.597037] ffffffffc05056d0 ffff88026ec83c98 ffffffff817a1c43 0000000000000000 [ 3079.597038] ffff88026ec83ce8 ffff88026ec83cd8 ffffffff8107719a ffff88026ec83cd8 [ 3079.597040] ffff880263740078 00000000000223a0 00000000000223a0 ffff880263740078 [ 3079.597041] Call Trace: [ 3079.597042] <IRQ> [<ffffffff817a1c43>] dump_stack+0x45/0x57 [ 3079.597048] [<ffffffff8107719a>] warn_slowpath_common+0x8a/0xc0 [ 3079.597050] [<ffffffff81077216>] warn_slowpath_fmt+0x46/0x50 [ 3079.597061] [<ffffffffc04813c8>] hsw_unclaimed_reg_debug.isra.14+0x78/0xa0 [i915] [ 3079.597064] [<ffffffff817a8ce7>] ? _raw_spin_lock_irqsave+0x37/0x40 [ 3079.597073] [<ffffffffc0485d8f>] gen8_write32+0x5f/0x1b0 [i915] [ 3079.597083] [<ffffffffc04773e9>] intel_lrc_irq_handler+0x1a9/0x230 [i915] [ 3079.597089] [<ffffffffc0434e54>] gen8_gt_irq_handler+0x224/0x250 [i915] [ 3079.597094] [<ffffffffc0434efb>] gen8_irq_handler+0x7b/0x680 [i915] [ 3079.597096] [<ffffffff810e09e4>] ? enqueue_hrtimer+0x44/0x80 [ 3079.597098] [<ffffffff810cdb79>] handle_irq_event_percpu+0x39/0x180 [ 3079.597100] [<ffffffff810cdd09>] handle_irq_event+0x49/0x70 [ 3079.597101] [<ffffffff810d0e4d>] handle_edge_irq+0x9d/0x150 [ 3079.597103] [<ffffffff810171c5>] handle_irq+0x25/0x40 [ 3079.597105] [<ffffffff817abb31>] do_IRQ+0x51/0xe0 [ 3079.597107] [<ffffffff817a9aab>] common_interrupt+0x6b/0x6b [ 3079.597107] <EOI> [<ffffffff810e09e4>] ? enqueue_hrtimer+0x44/0x80 [ 3079.597111] [<ffffffff81643e68>] ? cpuidle_enter_state+0xb8/0x220 [ 3079.597112] [<ffffffff81643e44>] ? cpuidle_enter_state+0x94/0x220 [ 3079.597114] [<ffffffff81644007>] cpuidle_enter+0x17/0x20 [ 3079.597115] [<ffffffff810b72e2>] call_cpuidle+0x32/0x60 [ 3079.597117] [<ffffffff81643fe3>] ? cpuidle_select+0x13/0x20 [ 3079.597118] [<ffffffff810b756c>] cpu_startup_entry+0x25c/0x320 [ 3079.597120] [<ffffffff8104aed5>] start_secondary+0x175/0x1a0 [ 3079.597121] ---[ end trace 49f1deecd67e26fd ]---
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