On 07/03/17 08:30, Martijn van Duren wrote:
> On 07/01/17 18:14, Mark Kettenis wrote:
>> CVSROOT:     /cvs
>> Module name: src
>> Changes by:  kette...@cvs.openbsd.org        2017/07/01 10:14:10
>>
>> Modified files:
>>      sys/dev/pci/drm: drm_irq.c drm_linux.c drm_linux.h 
>>                       drm_linux_list.h drm_mm.c drm_mm.h drm_mode.h 
>>                       drm_modes.c drm_rect.c drm_rect.h 
>>                       drm_vma_manager.c files.drm i915_drm.h 
>>                       i915_pciids.h linux_hdmi.h 
>>      sys/dev/pci/drm/i915: dvo.h dvo_ch7017.c dvo_ch7xxx.c dvo_ivch.c 
>>                            dvo_ns2501.c dvo_sil164.c dvo_tfp410.c 
>>                            i915_dma.c i915_drv.c i915_drv.h 
>>                            i915_gem.c i915_gem_context.c 
>>                            i915_gem_evict.c i915_gem_execbuffer.c 
>>                            i915_gem_gtt.c i915_gem_stolen.c 
>>                            i915_gem_tiling.c i915_gpu_error.c 
>>                            i915_irq.c i915_reg.h i915_suspend.c 
>>                            i915_trace.h intel_bios.c intel_bios.h 
>>                            intel_crt.c intel_ddi.c intel_display.c 
>>                            intel_dp.c intel_drv.h intel_dvo.c 
>>                            intel_fbdev.c intel_hdmi.c intel_i2c.c 
>>                            intel_lvds.c intel_modes.c 
>>                            intel_opregion.c intel_overlay.c 
>>                            intel_panel.c intel_pm.c 
>>                            intel_ringbuffer.c intel_ringbuffer.h 
>>                            intel_sdvo.c intel_sdvo_regs.h 
>>                            intel_sideband.c intel_sprite.c intel_tv.c 
>>                            intel_uncore.c 
>>      sys/dev/pci/drm/radeon: atombios_crtc.c atombios_dp.c 
>>                              atombios_i2c.c nid.h r100.c radeon.h 
>>                              radeon_connectors.c radeon_device.c 
>>                              radeon_display.c radeon_fb.c 
>>                              radeon_i2c.c radeon_irq_kms.c 
>>                              radeon_kms.c radeon_legacy_crtc.c 
>>                              radeon_legacy_encoders.c radeon_mode.h 
>>                              radeon_pm.c 
>>      sys/dev/pci/drm/ttm: ttm_bo_manager.c 
>> Added files:
>>      sys/dev/pci/drm: drm_linux_atomic.h drm_mipi_dsi.h drm_modes.h 
>>                       drm_modeset_lock.c drm_modeset_lock.h 
>>                       drm_panel.c drm_panel.h drm_plane_helper.c 
>>                       drm_plane_helper.h drm_probe_helper.c 
>>                       linux_list_sort.c linux_types.h 
>>                       linux_ww_mutex.h 
>>      sys/dev/pci/drm/i915: i915_cmd_parser.c i915_gem_batch_pool.c 
>>                            i915_gem_batch_pool.h i915_gem_fence.c 
>>                            i915_gem_gtt.h i915_gem_render_state.c 
>>                            i915_gem_render_state.h i915_gem_userptr.c 
>>                            i915_guc_reg.h i915_guc_submission.c 
>>                            i915_params.c i915_vgpu.c i915_vgpu.h 
>>                            intel_atomic.c intel_atomic_plane.c 
>>                            intel_audio.c intel_csr.c intel_dp_mst.c 
>>                            intel_dsi.c intel_dsi.h 
>>                            intel_dsi_panel_vbt.c intel_dsi_pll.c 
>>                            intel_fbc.c intel_fifo_underrun.c 
>>                            intel_frontbuffer.c intel_gtt.c 
>>                            intel_guc.h intel_guc_fwif.h 
>>                            intel_guc_loader.c intel_hotplug.c 
>>                            intel_lrc.c intel_lrc.h intel_mocs.c 
>>                            intel_mocs.h intel_psr.c 
>>                            intel_renderstate.h 
>>                            intel_renderstate_gen6.c 
>>                            intel_renderstate_gen7.c 
>>                            intel_renderstate_gen8.c 
>>                            intel_renderstate_gen9.c 
>>                            intel_runtime_pm.c 
>>      sys/dev/pci/drm/radeon: radeon_dp_auxch.c 
>>
>> Log message:
>> Update inteldrm(4) to code based on Linux 4.4.70.  This brings us support for
>> Skylake and Cherryview and better support for Broadwell and Valleyview.  Also
>> adds MST support.  Some tweaks to the TTM code and radeondrm(4) to keep it
>> working with the updated generic DRM code needed for inteldrm(4).
>>
>> Tested by many.
>>
> This change *STILL* breaks my $DAYJOB machine.
> 
After a couple of updates where I had to revert back to an old kernel I
managed to lay claim to a "new" system. This one is intel only and
doesn't have any issues.

If there's still interest in fixing this issue, the hardware is still
available, but there's no direct need for me any more.

OpenBSD 6.1-current (GENERIC.MP) #95: Wed Jul 12 19:23:28 MDT 2017
    dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
RTC BIOS diagnostic error 
ff<clock_battery,ROM_cksum,config_unit,memory_size,fixed_disk,invalid_time>
real mem = 8509276160 (8115MB)
avail mem = 8245592064 (7863MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.4 @ 0x8cd14000 (50 entries)
bios0: vendor Apple Inc. version "IM141.88Z.0118.B42.1703291635" date 03/29/2017
bios0: Apple Inc. iMac14,1
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP HPET APIC SBST ECDT SSDT SSDT SSDT SSDT SSDT SSDT SSDT 
SSDT DMAR MCFG
acpi0: wakeup devices P0P2(S3) EC__(S3) HDEF(S3) RP01(S3) RP03(S4) ARPT(S4) 
RP04(S4) GIGE(S4) SDXC(S3) RP05(S3) XHC1(S3)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpihpet0 at acpi0: 14318179 Hz
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i5-4570R CPU @ 2.70GHz, 2694.18 MHz
cpu0: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,SENSOR,ARAT
cpu0: 256KB 64b/line 8-way L2 cache
cpu0: TSC frequency 2694175620 Hz
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 99MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.2, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Core(TM) i5-4570R CPU @ 2.70GHz, 2693.76 MHz
cpu1: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,SENSOR,ARAT
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 4 (application processor)
cpu2: Intel(R) Core(TM) i5-4570R CPU @ 2.70GHz, 2693.76 MHz
cpu2: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,SENSOR,ARAT
cpu2: 256KB 64b/line 8-way L2 cache
cpu2: smt 0, core 2, package 0
cpu3 at mainbus0: apid 6 (application processor)
cpu3: Intel(R) Core(TM) i5-4570R CPU @ 2.70GHz, 2693.76 MHz
cpu3: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,SENSOR,ARAT
cpu3: 256KB 64b/line 8-way L2 cache
cpu3: smt 0, core 3, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins
acpiec0 at acpi0
acpimcfg0 at acpi0 addr 0xe0000000, bus 0-154
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (P0P2)
acpiprt2 at acpi0: bus 1 (RP01)
acpiprt3 at acpi0: bus 2 (RP03)
acpiprt4 at acpi0: bus 3 (RP04)
acpiprt5 at acpi0: bus 4 (RP05)
acpicpu0 at acpi0: C2(350@117 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C2(350@117 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpicpu2 at acpi0: C2(350@117 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpicpu3 at acpi0: C2(350@117 mwait.1@0x20), C1(1000@1 mwait.1), PSS
"APP0001" at acpi0 not configured
"APP000C" at acpi0 not configured
"ACPI0008" at acpi0 not configured
acpibtn0 at acpi0: PWRB
"APP0002" at acpi0 not configured
acpibtn1 at acpi0: SLPB
acpivideo0 at acpi0: IGPU
acpivout0 at acpivideo0: DD07
acpivout at acpivideo0 not configured
cpu0: Enhanced SpeedStep 2694 MHz: speeds: 2701, 2700, 2500, 2300, 2100, 1900, 
1600, 1400, 1200, 1000, 800 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 vendor "Intel", unknown product 0x0d00 rev 0x08
inteldrm0 at pci0 dev 2 function 0 "Intel Iris Pro Graphics 5200" rev 0x08
drm0 at inteldrm0
inteldrm0: msi
inteldrm0: 1920x1080, 32bpp
error: [drm:pid0:intel_pipe_config_compare] *ERROR* mismatch in has_audio 
(expected 1, found 0)
pipe state doesn't match!
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
azalia0 at pci0 dev 3 function 0 "Intel Core 4G HD Audio" rev 0x08: msi
azalia0: No codecs found
xhci0 at pci0 dev 20 function 0 "Intel 8 Series xHCI" rev 0x05: msi
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev 3.00/1.00 
addr 1
"Intel 8 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured
azalia1 at pci0 dev 27 function 0 "Intel 8 Series HD Audio" rev 0x05: msi
azalia1: codecs: Cirrus Logic CS4206
audio0 at azalia1
ppb0 at pci0 dev 28 function 0 "Intel 8 Series PCIE" rev 0xd5: msi
pci1 at ppb0 bus 1
ahci0 at pci1 dev 0 function 0 "Samsung S4LN053X01" rev 0x01: apic 2 int 16, 
AHCI 1.3
ahci0: port 0: 6.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, APPLE SSD SM0256, UXM2> SCSI3 0/direct 
fixed naa.5002538655584d30
sd0: 239372MB, 512 bytes/sector, 490234752 sectors, thin
ppb1 at pci0 dev 28 function 2 "Intel 8 Series PCIE" rev 0xd5: msi
pci2 at ppb1 bus 2
"Broadcom BCM4360" rev 0x03 at pci2 dev 0 function 0 not configured
ppb2 at pci0 dev 28 function 3 "Intel 8 Series PCIE" rev 0xd5: msi
pci3 at ppb2 bus 3
bge0 at pci3 dev 0 function 0 "Broadcom BCM57766" rev 0x01, unknown BCM57766 
(0x57766001): msi, address ac:87:a3:0a:91:5b
brgphy0 at bge0 phy 1: BCM57765 10/100/1000baseT PHY, rev. 1
sdhc0 at pci3 dev 0 function 1 "Broadcom SD Host Controller" rev 0x01: apic 2 
int 16
sdhc0: SDHC 3.0, 200 MHz base clock
sdmmc0 at sdhc0: 8-bit, sd high-speed, mmc high-speed, dma
ppb3 at pci0 dev 28 function 4 "Intel 8 Series PCIE" rev 0xd5: msi
pci4 at ppb3 bus 4
ppb4 at pci4 dev 0 function 0 "Intel DSL3510 Thunderbolt" rev 0x03
pci5 at ppb4 bus 5
ppb5 at pci5 dev 0 function 0 "Intel DSL3510 Thunderbolt" rev 0x03: msi
pci6 at ppb5 bus 6
"Intel DSL3510 Thunderbolt" rev 0x03 at pci6 dev 0 function 0 not configured
ppb6 at pci5 dev 3 function 0 "Intel DSL3510 Thunderbolt" rev 0x03: msi
pci7 at ppb6 bus 7
ppb7 at pci5 dev 4 function 0 "Intel DSL3510 Thunderbolt" rev 0x03: msi
pci8 at ppb7 bus 56
ppb8 at pci5 dev 5 function 0 "Intel DSL3510 Thunderbolt" rev 0x03: msi
pci9 at ppb8 bus 105
ppb9 at pci5 dev 6 function 0 "Intel DSL3510 Thunderbolt" rev 0x03: msi
pci10 at ppb9 bus 106
pcib0 at pci0 dev 31 function 0 "Intel HM87 LPC" rev 0x05
ichiic0 at pci0 dev 31 function 3 "Intel 8 Series SMBus" rev 0x05: apic 2 int 18
iic0 at ichiic0
iic0: addr 0x2c 00=d6 01=fc 04=f8 06=03 07=89 71=06 72=80 90=30 91=8a 92=f2 
93=02 94=1c 95=21 96=9f 97=08 98=3e 99=0f 9a=66 9b=9c 9c=12 9d=e1 9f=09 a0=8f 
a1=ff a2=1b a3=e0 a4=a7 a5=12 a6=07 a7=9e a8=07 aa=34 ab=20 ac=b9 ad=b0 ae=aa 
af=80 b1=2c b2=e6 b3=23 b4=02 b7=c5 words 00=d6fc 01=fc00 02=0000 03=00f8 
04=f800 05=0003 06=0389 07=8900
spdmem0 at iic0 addr 0x50: 4GB DDR3 SDRAM PC3-12800 SO-DIMM
spdmem1 at iic0 addr 0x52: 4GB DDR3 SDRAM PC3-12800 SO-DIMM
isa0 at pcib0
isadma0 at isa0
com0 at isa0 port 0x3f8/8 irq 4: ns8250, no fifo
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
asmc0 at isa0 port 0x300/32: rev 2.14f614, 546 keys
vmm0 at mainbus0: VMX/EPT
efifb at mainbus0 not configured
uhidev0 at uhub0 port 2 configuration 1 interface 0 "Sunplus USB Optical Mouse" 
rev 2.00/0.10 addr 2
uhidev0: iclass 3/1, 2 report ids
ums0 at uhidev0 reportid 1: 3 buttons, Z and W dir
wsmouse0 at ums0 mux 0
uhid0 at uhidev0 reportid 2: input=1, output=0, feature=0
uhidev1 at uhub0 port 6 configuration 1 interface 0 "vendor 0x04d9 USB 
Keyboard" rev 1.10/1.01 addr 3
uhidev1: iclass 3/1
ukbd0 at uhidev1: 8 variable keys, 6 key codes
wskbd0 at ukbd0: console keyboard, using wsdisplay0
uhidev2 at uhub0 port 6 configuration 1 interface 1 "vendor 0x04d9 USB 
Keyboard" rev 1.10/1.01 addr 3
uhidev2: iclass 3/0, 2 report ids
uhid1 at uhidev2 reportid 1: input=1, output=0, feature=0
uhid2 at uhidev2 reportid 2: input=3, output=0, feature=0
uvideo0 at uhub0 port 7 configuration 1 interface 0 "Apple Inc. FaceTime HD 
Camera (Built-in)" rev 2.00/72.30 addr 4
video0 at uvideo0
ugen0 at uhub0 port 7 configuration 1 "Apple Inc. FaceTime HD Camera 
(Built-in)" rev 2.00/72.30 addr 4
uhub1 at uhub0 port 8 configuration 1 interface 0 "Apple Inc. BRCM20702 Hub" 
rev 2.00/1.00 addr 5
uhidev3 at uhub1 port 1 configuration 1 interface 0 "Apple Computer product 
0x820a" rev 2.00/1.00 addr 6
uhidev3: iclass 3/1, 1 report id
ukbd1 at uhidev3 reportid 1: 8 variable keys, 6 key codes
wskbd1 at ukbd1 mux 1
wskbd1: connecting to wsdisplay0
uhidev4 at uhub1 port 2 configuration 1 interface 0 "Apple Computer product 
0x820b" rev 2.00/1.00 addr 7
uhidev4: iclass 3/1, 2 report ids
ums1 at uhidev4 reportid 2: 3 buttons
wsmouse1 at ums1 mux 0
ugen1 at uhub1 port 3 "Apple Inc. Bluetooth USB Host Controller" rev 2.00/1.37 
addr 8
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
sd1 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006> SCSI2 0/direct fixed
sd1: 222985MB, 512 bytes/sector, 456674376 sectors
root on sd1a (819aaa49bf15e984.a) swap on sd1b dump on sd1b
error: [drm:pid15227:intel_pipe_config_compare] *ERROR* mismatch in has_audio 
(expected 1, found 0)
pipe state doesn't match!
error: [drm:pid15227:intel_pipe_update_start] *ERROR* Potential atomic update 
failure on pipe A
error: [drm:pid15227:intel_pipe_update_start] *ERROR* Potential atomic update 
failure on pipe A
error: [drm:pid15227:intel_pipe_update_start] *ERROR* Potential atomic update 
failure on pipe A
error: [drm:pid15227:intel_pipe_update_start] *ERROR* Potential atomic update 
failure on pipe A

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