https://bugzilla.kernel.org/show_bug.cgi?id=96991
URL: http://paste.opensuse.org/view/raw/71895665
Bug ID: 96991
Summary: WARNING: CPU: 0 PID: 3109 at
../drivers/gpu/drm/i915/intel_display.c:7817
hsw_enable_pc8+0x588/0x630
Product: Drivers
Version: 2.5
Kernel Version: 3.19.3-1
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - Intel)
Assignee: intel-gfx-bugs at lists.freedesktop.org
Reporter: martin at pluskal.org
CC: ilw at linux.intel.com,
intel-gfx-bugs at lists.freedesktop.org
Regression: No
Created attachment 174661
--> https://bugzilla.kernel.org/attachment.cgi?id=174661&action=edit
full dmesg
On openSUSE, with 3.19.3-1-desktop, following occurs:
[67369.864983] ------------[ cut here ]------------
[67369.865057] WARNING: CPU: 0 PID: 3109 at
../drivers/gpu/drm/i915/intel_display.c:7817 hsw_enable_pc8+0x588/0x630
[i915]()
[67369.865059] SPLL enabled
[67369.865061] Modules linked in: msr cpufreq_stats rfcomm nf_log_ipv6
xt_pkttype nf_log_ipv4 nf_log_common xt_LOG xt_limit iscsi_ibft
iscsi_boot_sysfs af_packet ip6t_REJECT xt_tcpudp nf_conntrack_ipv6
nf_defrag_ipv6 ip6table_raw ipt_REJECT iptable_raw xt_CT iptable_filter
ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast
nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack
ip6table_filter ip6_tables x_tables bnep ecb arc4 nls_iso8859_1 nls_cp437 vfat
fat snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi iTCO_wdt
iTCO_vendor_support x86_pkg_temp_thermal intel_powerclamp coretemp dell_laptop
ppdev kvm_intel dell_wmi sparse_keymap dcdbas kvm crct10dif_pclmul crc32_pclmul
ghash_clmulni_intel aesni_intel dm_mod aes_x86_64 lrw i8k gf128mul glue_helper
uvcvideo iwlmvm
[67369.865116] ablk_helper videobuf2_vmalloc cryptd mac80211 videobuf2_memops
joydev videobuf2_core pcspkr v4l2_common i2c_i801 serio_raw btusb videodev
lpc_ich mfd_core bluetooth iwlwifi cfg80211 parport_pc rfkill i2c_hid parport
8250_fintek wmi thermal 8250_dw i2c_designware_platform i2c_designware_core
snd_hda_intel snd_hda_controller sdhci_pci battery ac snd_hda_codec snd_hwdep
e1000e snd_pcm snd_timer snd ptp mei_me pps_core mei soundcore shpchp processor
efivarfs uas usb_storage btrfs xor raid6_pq crc32c_intel i915 i2c_algo_bit
drm_kms_helper xhci_pci drm xhci_hcd video sdhci_acpi sdhci mmc_core button sg
[67369.865170] CPU: 0 PID: 3109 Comm: kworker/0:0 Not tainted 3.19.3-1-desktop
#1
[67369.865173] Hardware name: Dell Inc. Latitude E7240/08YF01, BIOS A14
02/02/2015
[67369.865181] Workqueue: pm pm_runtime_work
[67369.865184] 0000000000000000 ffffffffa0208a20 ffffffff81665a4c
ffff8800a2283c28
[67369.865190] ffffffff81062431 ffff880212440000 ffff880212c91b80
ffff880212c91b90
[67369.865194] ffff880212c91800 0000000000000000 ffffffff810624aa
ffffffffa0214cc8
[67369.865198] Call Trace:
[67369.865217] [<ffffffff8100558c>] dump_trace+0x8c/0x340
[67369.865224] [<ffffffff810058e3>] show_stack_log_lvl+0xa3/0x190
[67369.865230] [<ffffffff81007041>] show_stack+0x21/0x50
[67369.865240] [<ffffffff81665a4c>] dump_stack+0x47/0x67
[67369.865251] [<ffffffff81062431>] warn_slowpath_common+0x81/0xb0
[67369.865258] [<ffffffff810624aa>] warn_slowpath_fmt+0x4a/0x50
[67369.865295] [<ffffffffa01b57a8>] hsw_enable_pc8+0x588/0x630 [i915]
[67369.865318] [<ffffffffa014d042>] intel_suspend_complete+0xf2/0x6b0 [i915]
[67369.865338] [<ffffffffa014d8b1>] intel_runtime_suspend+0xf1/0x220 [i915]
[67369.865347] [<ffffffff813806bd>] pci_pm_runtime_suspend+0x5d/0x140
[67369.865355] [<ffffffff814670ed>] __rpm_callback+0x2d/0x70
[67369.865361] [<ffffffff8146714f>] rpm_callback+0x1f/0x80
[67369.865367] [<ffffffff8146763c>] rpm_suspend+0x10c/0x660
[67369.865373] [<ffffffff81468e8a>] pm_runtime_work+0x7a/0xd0
[67369.865381] [<ffffffff8107a012>] process_one_work+0x142/0x3f0
[67369.865388] [<ffffffff8107a3d4>] worker_thread+0x114/0x460
[67369.865395] [<ffffffff8107f551>] kthread+0xc1/0xe0
[67369.865403] [<ffffffff8166c298>] ret_from_fork+0x58/0x90
[67369.865408] ---[ end trace aff1bd92a71a97f4 ]---
Issue does not seem to be fatal, graphics seems to still work
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