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#1 2016-01-23 00:26:24

Sheraf
Member
Registered: 2016-01-23
Posts: 3

Backtrace in dmesg

Hi,

I'm having this backtrace in my dmesg:

[   55.849403] ------------[ cut here ]------------
[   55.849426] WARNING: CPU: 2 PID: 390 at drivers/gpu/drm/i915/intel_uncore.c:620 hsw_unclaimed_reg_debug+0x69/0x90 [i915]()
[   55.849429] Unclaimed register detected before reading register 0x223a0
[   55.849430] Modules linked in: sha256_ssse3 sha256_generic hmac drbg ansi_cprng ctr ccm intel_rapl snd_hda_codec_hdmi iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic joydev mousedev crct10dif_pclmul crc32_pclmul crc32c_intel nls_iso8859_1 nls_cp437 fuse arc4 btusb snd_hda_intel rtsx_usb_ms iwlmvm mac80211 aesni_intel btrtl btbcm btintel snd_hda_codec mxm_wmi iTCO_wdt iTCO_vendor_support bluetooth memstick vfat fat aes_x86_64 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev msi_wmi media sparse_keymap iwlwifi cdc_acm snd_soc_rt5640 lrw gf128mul alx snd_soc_rl6231 snd_hda_core hid_generic snd_soc_core mei_me mei snd_compress snd_hwdep snd_pcm_dmaengine ac97_bus mdio glue_helper cfg80211 snd_pcm ablk_helper
[   55.849480]  snd_timer cryptd snd pcspkr evdev input_leds battery thermal mac_hid psmouse serio_raw rfkill snd_soc_sst_acpi soundcore i2c_hid i915 drm_kms_helper drm intel_gtt ac syscopyarea sysfillrect sysimgblt 8250_dw fb_sys_fops elan_i2c i2c_algo_bit gpio_lynxpoint i2c_i801 i2c_designware_platform fjes lpc_ich shpchp dw_dmac video dw_dmac_core i2c_designware_core spi_pxa2xx_platform acpi_als kfifo_buf industrialio wmi processor fan acpi_pad button sch_fq_codel ip_tables x_tables ext4 crc16 mbcache jbd2 rtsx_usb_sdmmc rtsx_usb usbhid hid sr_mod cdrom sd_mod atkbd libps2 xhci_pci xhci_hcd ahci libahci ehci_pci libata ehci_hcd usbcore scsi_mod usb_common i8042 serio sdhci_acpi sdhci led_class mmc_core
[   55.849533] CPU: 2 PID: 390 Comm: Xorg Not tainted 4.3.3-3-ARCH #1
[   55.849534] Hardware name: Micro-Star International Co., Ltd. GE62 2QC/MS-16J2, BIOS E16J2IMS.114 09/23/2015
[   55.849536]  0000000000000000 000000000ab17487 ffff88025ec83cf0 ffffffff812c0dc9
[   55.849539]  ffff88025ec83d38 ffff88025ec83d28 ffffffff81074f42 ffff88009a9f0000
[   55.849542]  00000000000223a0 0000000000000000 00000000000223a0 ffff88009a9f0000
[   55.849545] Call Trace:
[   55.849546]  <IRQ>  [<ffffffff812c0dc9>] dump_stack+0x4b/0x72
[   55.849557]  [<ffffffff81074f42>] warn_slowpath_common+0x82/0xc0
[   55.849560]  [<ffffffff81074fdc>] warn_slowpath_fmt+0x5c/0x80
[   55.849572]  [<ffffffffa03fc359>] hsw_unclaimed_reg_debug+0x69/0x90 [i915]
[   55.849582]  [<ffffffffa0401f59>] gen6_read32+0x59/0x1a0 [i915]
[   55.849593]  [<ffffffffa03f25d8>] intel_lrc_irq_handler+0x38/0x220 [i915]
[   55.849600]  [<ffffffffa03b2d67>] gen8_gt_irq_handler+0x217/0x240 [i915]
[   55.849606]  [<ffffffffa03b2e2e>] gen8_irq_handler+0x9e/0x560 [i915]
[   55.849610]  [<ffffffff810cce69>] handle_irq_event_percpu+0x39/0x1b0
[   55.849613]  [<ffffffff810cd020>] handle_irq_event+0x40/0x60
[   55.849616]  [<ffffffff810d003b>] handle_edge_irq+0xab/0x130
[   55.849619]  [<ffffffff81018c8a>] handle_irq+0x1a/0x30
[   55.849622]  [<ffffffff81586a2b>] do_IRQ+0x4b/0xd0
[   55.849625]  [<ffffffff81584802>] common_interrupt+0x82/0x82
[   55.849627]  <EOI>  [<ffffffff81583613>] ? _raw_spin_unlock_irq+0x13/0x30
[   55.849640]  [<ffffffffa03f3013>] gen8_emit_request+0x1e3/0x2f0 [i915]
[   55.849650]  [<ffffffffa03dfb6c>] __i915_add_request+0x17c/0x200 [i915]
[   55.849659]  [<ffffffffa03d6ae6>] i915_gem_execbuffer_retire_commands+0x26/0x30 [i915]
[   55.849669]  [<ffffffffa03f3821>] intel_execlists_submission+0x391/0x4f0 [i915]
[   55.849680]  [<ffffffffa03d65f4>] i915_gem_do_execbuffer.isra.14+0x1194/0x1330 [i915]
[   55.849689]  [<ffffffffa03d79a7>] i915_gem_execbuffer2+0xd7/0x230 [i915]
[   55.849700]  [<ffffffffa03e2736>] ? i915_gem_busy_ioctl+0x86/0xc0 [i915]
[   55.849709]  [<ffffffffa031e5c8>] drm_ioctl+0x138/0x500 [drm]
[   55.849717]  [<ffffffffa03d78d0>] ? i915_gem_execbuffer+0x320/0x320 [i915]
[   55.849721]  [<ffffffff811d9037>] ? __vfs_read+0x37/0x100
[   55.849723]  [<ffffffff811eb5f5>] do_vfs_ioctl+0x295/0x480
[   55.849727]  [<ffffffff811f5597>] ? __fget+0x77/0xb0
[   55.849729]  [<ffffffff811eb859>] SyS_ioctl+0x79/0x90
[   55.849732]  [<ffffffff81583d2e>] entry_SYSCALL_64_fastpath+0x12/0x71
[   55.849735] ---[ end trace c86ff5614512dfd4 ]---

I don't really know what it means, but it's probably not good, any idea of how to fix it?

Thanks.

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#2 2016-01-23 05:00:32

x33a
Forum Moderator
Registered: 2009-08-15
Posts: 3,398
Website

Re: Backtrace in dmesg

Seems to be graphics related. Do you get it every time you boot?

Post details about your hardware, graphics driver, DE/WM, etc.

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#3 2016-01-23 14:22:57

Sheraf
Member
Registered: 2016-01-23
Posts: 3

Re: Backtrace in dmesg

It was in my dmesg every time i checked.

lspci:

00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge - DMI (rev 0a)
00:01.0 PCI bridge: Intel Corporation Broadwell-U PCI Express x16 Controller (rev 0a)
00:02.0 VGA compatible controller: Intel Corporation Broadwell-U Integrated Graphics (rev 0a)
00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 0a)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #5 (rev d5)
00:1c.6 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #7 (rev d5)
00:1c.7 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #8 (rev d5)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM87 Express LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05)
01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 960M] (rev a2)
03:00.0 Network controller: Intel Corporation Wireless 3160 (rev 83)
04:00.0 Ethernet controller: Qualcomm Atheros Killer E220x Gigabit Ethernet Controller (rev 13

I am using bumblebee as i have 2 GPU (nvidia otpimus technology i believe)

cat /proc/cpuinfo (8 entry)

processor       : 7
vendor_id       : GenuineIntel
cpu family      : 6
model           : 71
model name      : Intel(R) Core(TM) i7-5700HQ CPU @ 2.70GHz
stepping        : 1
microcode       : 0x13
cpu MHz         : 2700.210
cache size      : 6144 KB
physical id     : 0
siblings        : 8
core id         : 3
cpu cores       : 4
apicid          : 7
initial apicid  : 7
fpu             : yes
fpu_exception   : yes
cpuid level     : 20
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch ida arat epb pln pts dtherm intel_pt tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid rdseed adx smap xsaveopt
bugs            :
bogomips        : 5389.29
clflush size    : 64
cache_alignment : 64
address sizes   : 39 bits physical, 48 bits virtual
power management:

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#4 2016-01-26 20:10:21

Sheraf
Member
Registered: 2016-01-23
Posts: 3

Re: Backtrace in dmesg

Bump?

I'm also getting random freeze, each time happened after hours of uptime, I disabled SpeedStep in the bios, as i read in another thread.
Not sure if it's related to what i posted previously

Thanks.

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