[Bug 110650] New: "RPM wakelock ref not held during HW access" on first resume

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110650

            Bug ID: 110650
           Summary: "RPM wakelock ref not held during HW access" on first
                    resume
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: turnerjw784 at yahoo.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

uname -r:  5.0.0-13.1-liquorix-amd64
inxi:
Graphics:
  Device-1: Intel Core Processor Integrated Graphics driver: i915 v: kernel 
  Display: server: X.Org 1.20.3 driver: intel resolution: 1920x1080~60Hz 
  OpenGL: renderer: Mesa DRI Intel Ironlake Mobile v: 2.1 Mesa 18.3.4 
Pbm exists in all recent kernels since 4.20 or so.
May be dup. of bug#108364 (closed)? (but I'm using Ironlake, not Icelake)

Following error occurs on resume from suspend (dmesg), no other visible
symptoms:

[39084.377126] Removed affinity for 300 processes to cpu 1
[39084.377357] ------------[ cut here ]------------
[39084.377359] RPM wakelock ref not held during HW access
[39084.377445] WARNING: CPU: 0 PID: 577 at
drivers/gpu/drm/i915/intel_drv.h:2138 gen5_read32+0x116/0x130 [i915]
[39084.377445] Modules linked in: loop pcmciamtd chipreg mtd pata_pcmcia
snd_hda_codec_hdmi intel_powerclamp coretemp pcmcia kvm_intel crct10dif_pclmul
crc32_pclmul ghash_clmulni_intel yenta_socket aesni_intel pcmcia_rsrc
aes_x86_64 crypto_simd cryptd glue_helper snd_hda_codec_idt
snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_hda_codec snd_hda_core
snd_hwdep snd_pcm hp_wmi input_leds pcc_cpufreq snd_timer serio_raw
sparse_keymap pcmcia_core arc4 wmi_bmof intel_ips snd acpi_cpufreq battery
rfkill hp_accel ac button lis3lv02d input_polldev evdev soundcore ext4
crc32c_generic crc16 mbcache jbd2 fscrypto hid_lenovo hid_generic usbhid sg
sr_mod sd_mod cdrom i915 ahci libahci crc32c_intel libata psmouse scsi_mod
lpc_ich kvm irqbypass i2c_algo_bit sdhci_pci cqhci drm_kms_helper sdhci
mmc_core ehci_pci ehci_hcd drm e1000e intel_agp intel_gtt i2c_core wmi rtc_cmos
video thermal [last unloaded: cfg80211]
[39084.377480] CPU: 0 PID: 577 Comm: ips-monitor Not tainted
5.0.0-13.1-liquorix-amd64 #1 liquorix 5.0-13.1~sid
[39084.377481] Hardware name: Hewlett-Packard HP EliteBook 8440p/172A, BIOS
68CCU Ver. F.11 11/25/2010
[39084.377511] RIP: 0010:gen5_read32+0x116/0x130 [i915]
[39084.377512] Code: 04 e9 2a ff ff ff 80 3d 2f 5b 17 00 00 0f 85 2b ff ff ff
48 c7 c7 40 58 5c a0 89 54 24 04 c6 05 17 5b 17 00 01 e8 bf e3 bb e0 <0f> 0b 8b
54 24 04 e9 09 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00
[39084.377513] RSP: 0018:ffffc90001413e40 EFLAGS: 00010086
[39084.377514] RAX: 000000000000002a RBX: ffff88822a700000 RCX:
0000000000000000
[39084.377515] RDX: 0000000000000002 RSI: ffffffff827b504a RDI:
0000000000000046
[39084.377516] RBP: 00000000000112e4 R08: 0000000000000002 R09:
000000000001fd00
[39084.377517] R10: ffffffff827b5020 R11: 000000000000002a R12:
ffff88822bb86e18
[39084.377517] R13: 00000000000000cc R14: ffff88822a8e1200 R15:
ffff88822a8e1d80
[39084.377519] FS:  0000000000000000(0000) GS:ffff888233a00000(0000)
knlGS:0000000000000000
[39084.377519] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[39084.377520] CR2: 00007f1199528766 CR3: 0000000232ede002 CR4:
00000000000206f0
[39084.377521] Call Trace:
[39084.377547]  __i915_chipset_val+0x46/0x1a0 [i915]
[39084.377569]  i915_read_mch_val+0x24/0x50 [i915]
[39084.377572]  ips_monitor+0x4f6/0x5c0 [intel_ips]
[39084.377574]  ? ips_irq_handler+0x180/0x180 [intel_ips]
[39084.377578]  kthread+0x152/0x170
[39084.377579]  ? kthread_park+0x80/0x80
[39084.377581]  ret_from_fork+0x1f/0x40
[39084.377584] ---[ end trace 2727dc50dfe90919 ]---

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