>Synopsis: kernel integer divide fault trap when booting t430s with >external display >Category: kernel >Environment: System : OpenBSD 6.3 Details : OpenBSD 6.3-current (GENERIC.MP) #91: Sat Jun 9 20:57:09 MDT 2018 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
Architecture: OpenBSD.amd64 Machine : amd64 >Description: When booting thinkpad t430s with external monitor (dvi-d) connected to laptops mini-displayport via adapter I always get "kernel integer divide fault trap". Error appears just when xenodm is started, I get a glimpse of X and then it drops to ddb. Cable/adapter + monitor works fine on another laptop. When connecting the cable once the laptop is running, it won't recognize it at all eg. xrandr doesn't list anything besides built-in display. Full error copied: kernel integer divide fault trap, code=0 stopped at lkm_compute_wm_level+0x5f0: divl %edi,%eax ilk_compute_wm_level(930218ac0e9aef7f1, ffff80000012d000,3,ffff80000012d0000 at ilk_compute_wm_level+0x5f0 ilk_update_wm(dc2f8fcc7a93074) at ilk_update_wm+0x3b5 intel_begin_crtc_commit(a5e5f10389c45e79,ffff80000012d000) at intel_begin_crtc_commit+0x43 drm_atomic_helper_commit_planes_on_crtc(3943eaabcd4537da) at drm_atomic_helper_commit_planes_on_crtc+0x5f intel_atomic_commit(cdeaa86772bb7e30,ffff800000f5bc00,ffff80000012e8000) at intel_atomic_commit+0x5b4 drm_atomic_helper_update_plane(db75136cec8daea2, ffff80000012e800,ffff80000012d00,0,ffff800000012e800) at drm_atomic_helper_update_plane+0x0d __setplane_internal(ea850c28fdfa4423,ffff80000046800,ffff800000012d098,1000000) at __setplane_internal+0x1de drm_mode_cursor_common(8773172775aa45a8,ffff800000012c000,ffffffff81be36e8) at drm_mode_cursor_commmon+0x30b drm_do_ioctl9bdd2274c11d49c74,0,ffff80000012c0e0,ffff80000012c000) at drm_do_ioctl+0x221 drmioctl(e4f3130eaffd1816,ffffff03a28a9508,ffffff035d818a50,c02464bb,ffff800033048710) at drmioctl+0xf9 VOP_IOCTL(60d710039bc86823,ffffff038d818a50,a5ef539e69a8cbb4, ffff8000033048710,ffffff041ddc67e0,ffff800000000003)+0x5a vn_ioctl(f88d3ea6e9f9a86,ffffff03a28a9508,c02464bb,c02464bb) at vn_ioctl+0x6b sys_ioctl(f8e4319c69c69ff4948,360,ffff800033048710) at sys_ioctl+0x457 syscall(afbd8016ee6da6c1) at syscall+0x32a Xsyscall_untramp(6,0,0,0,0,36) at Xsyscall_untramp+0xc0 end of kernel end of frame: 0x7f7ffffdf5c0, count: -15 >How-To-Repeat: Attach external monitor to laptops mini-displayport and boot the OS. >Fix: Not known. dmesg: OpenBSD 6.3-current (GENERIC.MP) #91: Sat Jun 9 20:57:09 MDT 2018 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 16973611008 (16187MB) avail mem = 16319369216 (15563MB) mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xdae9c000 (68 entries) bios0: vendor LENOVO version "G7ETA4WW (2.64 )" date 10/08/2015 bios0: LENOVO 2355C16 acpi0 at bios0: rev 2 acpi0: sleep states S0 S3 S4 S5 acpi0: tables DSDT FACP SLIC TCPA SSDT SSDT SSDT HPET APIC MCFG ECDT FPDT ASF! UEFI UEFI POAT SSDT SSDT DMAR UEFI DBG2 acpi0: wakeup devices LID_(S4) SLPB(S3) IGBE(S4) EXP3(S4) XHCI(S3) EHC1(S3) EHC2(S3) HDEF(S4) 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) i5-3320M CPU @ 2.60GHz, 1197.52 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,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,RDTSCP,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,IBRS,IBPB,STIBP,SENSOR,ARAT,XSAVEOPT,MELTDOWN cpu0: 256KB 64b/line 8-way L2 cache 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=0.2.1.1.2, IBE cpu1 at mainbus0: apid 1 (application processor) cpu1: Intel(R) Core(TM) i5-3320M CPU @ 2.60GHz, 1197.28 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,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,RDTSCP,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,IBRS,IBPB,STIBP,SENSOR,ARAT,XSAVEOPT,MELTDOWN cpu1: 256KB 64b/line 8-way L2 cache cpu1: smt 1, core 0, package 0 cpu2 at mainbus0: apid 2 (application processor) cpu2: Intel(R) Core(TM) i5-3320M CPU @ 2.60GHz, 1197.29 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,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,RDTSCP,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,IBRS,IBPB,STIBP,SENSOR,ARAT,XSAVEOPT,MELTDOWN cpu2: 256KB 64b/line 8-way L2 cache cpu2: smt 0, core 1, package 0 cpu3 at mainbus0: apid 3 (application processor) cpu3: Intel(R) Core(TM) i5-3320M CPU @ 2.60GHz, 1197.28 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,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,RDTSCP,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,IBRS,IBPB,STIBP,SENSOR,ARAT,XSAVEOPT,MELTDOWN cpu3: 256KB 64b/line 8-way L2 cache cpu3: smt 1, core 1, package 0 ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins acpimcfg0 at acpi0 addr 0xf8000000, bus 0-63 acpiec0 at acpi0 acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus -1 (PEG_) acpiprt2 at acpi0: bus 2 (EXP1) acpiprt3 at acpi0: bus 3 (EXP2) acpiprt4 at acpi0: bus 4 (EXP3) acpiprt5 at acpi0: bus -1 (EXP5) acpiprt6 at acpi0: bus -1 (EXP6) acpiprt7 at acpi0: bus -1 (EXP7) acpiprt8 at acpi0: bus -1 (EXP8) acpicpu0 at acpi0: C3(200@87 mwait.1@0x30), C2(500@59 mwait.1@0x10), C1(1000@1 mwait.1), PSS acpicpu1 at acpi0: C3(200@87 mwait.1@0x30), C2(500@59 mwait.1@0x10), C1(1000@1 mwait.1), PSS acpicpu2 at acpi0: C3(200@87 mwait.1@0x30), C2(500@59 mwait.1@0x10), C1(1000@1 mwait.1), PSS acpicpu3 at acpi0: C3(200@87 mwait.1@0x30), C2(500@59 mwait.1@0x10), C1(1000@1 mwait.1), PSS acpipwrres0 at acpi0: PUBS, resource for XHCI, EHC1, EHC2 acpitz0 at acpi0: critical temperature is 103 degC acpibtn0 at acpi0: LID_ acpibtn1 at acpi0: SLPB acpicmos0 at acpi0 "LEN0071" at acpi0 not configured "LEN0015" at acpi0 not configured "SMO1200" at acpi0 not configured acpibat0 at acpi0: BAT0 model "45N1143" serial 490 type LION oem "Panasonic" acpiac0 at acpi0: AC unit offline "LEN0078" at acpi0 not configured acpithinkpad0 at acpi0 "PNP0C14" at acpi0 not configured "PNP0C14" at acpi0 not configured "PNP0C14" at acpi0 not configured acpivideo0 at acpi0: VID_ acpivout at acpivideo0 not configured acpivideo1 at acpi0: VID_ cpu0: Enhanced SpeedStep 1197 MHz: speeds: 2601, 2600, 2500, 2400, 2300, 2200, 2100, 2000, 1900, 1800, 1700, 1600, 1500, 1400, 1300, 1200 MHz pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "Intel Core 3G Host" rev 0x09 inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 4000" rev 0x09 drm0 at inteldrm0 inteldrm0: msi inteldrm0: 1600x900, 32bpp wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation) wsdisplay0: screen 1-5 added (std, vt100 emulation) xhci0 at pci0 dev 20 function 0 "Intel 7 Series xHCI" rev 0x04: msi, xHCI 1.0 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 7 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured em0 at pci0 dev 25 function 0 "Intel 82579LM" rev 0x04: msi, address 3c:97:0e:60:8d:ca ehci0 at pci0 dev 26 function 0 "Intel 7 Series USB" rev 0x04: apic 2 int 16 usb1 at ehci0: USB revision 2.0 uhub1 at usb1 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 azalia0 at pci0 dev 27 function 0 "Intel 7 Series HD Audio" rev 0x04: msi azalia0: codecs: Realtek ALC269, Intel/0x2806, using Realtek ALC269 audio0 at azalia0 ppb0 at pci0 dev 28 function 0 "Intel 7 Series PCIE" rev 0xc4: msi pci1 at ppb0 bus 2 ppb1 at pci0 dev 28 function 1 "Intel 7 Series PCIE" rev 0xc4: msi pci2 at ppb1 bus 3 iwn0 at pci2 dev 0 function 0 "Intel Centrino Advanced-N 6205" rev 0x34: msi, MIMO 2T2R, MoW, address 60:67:20:f8:17:f4 ppb2 at pci0 dev 28 function 2 "Intel 7 Series PCIE" rev 0xc4: msi pci3 at ppb2 bus 4 sdhc0 at pci3 dev 0 function 0 "Ricoh 5U822 SD/MMC" rev 0x07: apic 2 int 18 sdhc0: SDHC 3.0, 50 MHz base clock sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed ehci1 at pci0 dev 29 function 0 "Intel 7 Series USB" rev 0x04: apic 2 int 23 usb2 at ehci1: USB revision 2.0 uhub2 at usb2 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 pcib0 at pci0 dev 31 function 0 "Intel QM77 LPC" rev 0x04 ahci0 at pci0 dev 31 function 2 "Intel 7 Series AHCI" rev 0x04: msi, AHCI 1.3 ahci0: port 0: 6.0Gb/s ahci0: port 1: 1.5Gb/s scsibus1 at ahci0: 32 targets sd0 at scsibus1 targ 0 lun 0: <ATA, Samsung SSD 850, EXM0> SCSI3 0/direct fixed naa.50025388400c34c6 sd0: 488386MB, 512 bytes/sector, 1000215216 sectors, thin cd0 at scsibus1 targ 1 lun 0: <HL-DT-ST, DVDRAM GU40N, QX23> ATAPI 5/cdrom removable ichiic0 at pci0 dev 31 function 3 "Intel 7 Series SMBus" rev 0x04: apic 2 int 18 iic0 at ichiic0 spdmem0 at iic0 addr 0x50: 8GB DDR3 SDRAM PC3-10600 SO-DIMM spdmem1 at iic0 addr 0x51: 8GB DDR3 SDRAM PC3-10600 SO-DIMM isa0 at pcib0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 irq 1 irq 12 pckbd0 at pckbc0 (kbd slot) wskbd0 at pckbd0: console keyboard, using wsdisplay0 pms0 at pckbc0 (aux slot) wsmouse0 at pms0 mux 0 wsmouse1 at pms0 mux 0 pms0: Synaptics touchpad, firmware 7.2, 0x1c0b1 0xb40000 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 vmm0 at mainbus0: VMX/EPT efifb at mainbus0 not configured error: [drm:pid0:cpt_set_fifo_underrun_reporting] *ERROR* uncleared pch fifo underrun on pch transcoder A error: [drm:pid0:intel_pch_fifo_underrun_irq_handler] *ERROR* PCH transcoder A FIFO underrun umodem0 at uhub0 port 4 configuration 1 interface 1 "Lenovo H5321 gw" rev 2.00/0.00 addr 2 umodem0: data interface 2, has CM over data, has break umodem0: status change notification available ucom0 at umodem0 umodem1 at uhub0 port 4 configuration 1 interface 3 "Lenovo H5321 gw" rev 2.00/0.00 addr 2 umodem1: data interface 4, has CM over data, has break umodem1: status change notification available ucom1 at umodem1 umodem2 at uhub0 port 4 configuration 1 interface 9 "Lenovo H5321 gw" rev 2.00/0.00 addr 2 umodem2: data interface 10, has CM over data, has break umodem2: status change notification available ucom2 at umodem2 ugen0 at uhub0 port 4 configuration 1 "Lenovo H5321 gw" rev 2.00/0.00 addr 2 uhub3 at uhub1 port 1 configuration 1 interface 0 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2 ugen1 at uhub3 port 1 "Lenovo Integrated Smart Card Reader" rev 2.00/1.00 addr 3 ugen2 at uhub3 port 4 "Broadcom Corp BCM20702A0" rev 2.00/1.12 addr 4 uvideo0 at uhub3 port 6 configuration 1 interface 0 "Chicony Electronics Co., Ltd. Integrated Camera" rev 2.00/5.18 addr 5 video0 at uvideo0 uhub4 at uhub2 port 1 configuration 1 interface 0 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets softraid0: sd1 was not shutdown properly sd1 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006> SCSI2 0/direct fixed sd1: 469948MB, 512 bytes/sector, 962453622 sectors root on sd1a (28d6cd887161483e.a) swap on sd1b dump on sd1b WARNING: / was not properly unmounted usbdevs: Controller /dev/usb0: addr 1: super speed, self powered, config 1, xHCI root hub(0x0000), Intel(0x8086), rev 1.00 port 1 disabled port 2 disabled port 3 disabled port 4 addr 2: high speed, self powered, config 1, H5321 gw(0x1926), Lenovo(0x0bdb), rev 0.00, iSerialNumber ECCBEE177DAA69E0 port 5 disabled port 6 disabled port 7 disabled port 8 disabled Controller /dev/usb1: addr 1: high speed, self powered, config 1, EHCI root hub(0x0000), Intel(0x8086), rev 1.00 port 1 addr 2: high speed, self powered, config 1, Rate Matching Hub(0x0024), Intel(0x8087), rev 0.00 port 1 addr 3: full speed, power 100 mA, config 1, Integrated Smart Card Reader(0x1003), Lenovo(0x17ef), rev 1.00 port 2 powered port 3 powered port 4 addr 4: full speed, self powered, config 1, BCM20702A0(0x21e6), Broadcom Corp(0x0a5c), rev 1.12, iSerialNumber 20689D2B3B37 port 5 powered port 6 addr 5: high speed, power 200 mA, config 1, Integrated Camera(0xb2da), Chicony Electronics Co., Ltd.(0x04f2), rev 5.18 port 2 powered port 3 powered Controller /dev/usb2: addr 1: high speed, self powered, config 1, EHCI root hub(0x0000), Intel(0x8086), rev 1.00 port 1 addr 2: high speed, self powered, config 1, Rate Matching Hub(0x0024), Intel(0x8087), rev 0.00 port 1 powered port 2 powered port 3 powered port 4 powered port 5 powered port 6 powered port 7 powered port 8 powered port 2 powered port 3 powered