Hi, After upgrading to latest snapshot on amd64, I have uvm_fault().
initializing kernel modesetting (RV610 0x1002:0x94C3 0x1028:0x0402 0x00). drm:pid0:r600_init *ERROR* Expecting atombios for R600 GPU drm:pid0:radeondrm_attachhook *ERROR* Fatal error during GPU init uvm_fault(0xffffffff81fb9030, 0x8, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff81663953 cs 8 rflags 10217 cr2 8 cpl 0 rsp ffffffff82291da0 gsbase 0xffffffff81f2fff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff81663953 Starting stack trace... panic() at panic+0x11b kerntrap(ffffffff82291cf0) at kerntrap+0x114 alltraps_kern_meltdown(6,0,ffffffff81f2cbf8,0,0,ffff80000007f000) at alltraps_kern_meltdown+0x7b unregister_acpi_notifier(ffff800000081b28) at unregister_acpi_notifier+0x23 radeondrm_detach_kms(ffff80000007f000,0) at radeondrm_detach_kms+0x3b config_detach(ffff80000007f000,0) at config_detach+0x152 radeondrm_attachhook(ffff80000007f000) at radeondrm_attachhook+0x2ea config_process_deferred_mountroot() at config_process_deferred_mountroot+0x6b main(0) at main+0x745 end trace frame: 0x0, count: 248 End of stack trace. I bisected the kernel to get the proper commit which introduced the problem. It is 6a77e6ad1ad5d153b53aaa6987055f6163280aee (https://github.com/openbsd/src/commit/6a77e6ad1ad5d153b53aaa6987055f6163280aee) Implement a few Linux compat ACPI interfaces and enable the ACPI support code in radeon(4) and amdgpu(4). ok jsg@ Please note that the drm error is expected for this hardware, but previously the fallback path worked well. Disabling radeondrm* in UKC is a working workaround. Full dmesg below. Thanks. -- Sebastien Marie OpenBSD 6.6-beta (GENERIC.MP) #28: Tue Aug 27 09:35:21 CEST 2019 [email protected]:/sys/arch/amd64/compile/GENERIC.MP real mem = 4141871104 (3949MB) avail mem = 4003672064 (3818MB) mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.5 @ 0xf0450 (80 entries) bios0: vendor Dell Inc. version "A22" date 06/11/2012 bios0: Dell Inc. OptiPlex 755 acpi0 at bios0 acpi0: TCPA checksum error: ACPI 3.0 acpi0: sleep states S0 S1 S3 S4 S5 acpi0: tables DSDT FACP SSDT APIC BOOT ASF! MCFG HPET TCPA DMAR SLIC SSDT SSDT SSDT acpi0: wakeup devices VBTN(S4) PCI0(S5) PCI4(S5) PCI2(S5) PCI3(S5) PCI1(S5) PCI5(S5) PCI6(S5) USB0(S3) USB1(S3) USB2(S3) USB3(S3) USB4(S3) USB5(S3) acpitimer0 at acpi0: 3579545 Hz, 24 bits acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: Intel(R) Core(TM)2 Duo CPU E6750 @ 2.66GHz, 2660.38 MHz, 06-0f-0b 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,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,NXE,LONG,LAHF,PERF,MELTDOWN cpu0: 4MB 64b/line 16-way L2 cache mtrr: Pentium Pro MTRR support, 7 var ranges, 88 fixed ranges cpu0: apic clock running at 332MHz cpu1 at mainbus0: apid 1 (application processor) TSC skew=-8 cpu1: Intel(R) Core(TM)2 Duo CPU E6750 @ 2.66GHz, 2660.00 MHz, 06-0f-0b 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,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,NXE,LONG,LAHF,PERF,MELTDOWN cpu1: 4MB 64b/line 16-way L2 cache ioapic0 at mainbus0: apid 8 pa 0xfec00000, version 20, 24 pins, remapped acpimcfg0 at acpi0 acpimcfg0: addr 0xe0000000, bus 0-255 acpimcfg0: addr 0xffffff0000000000, bus 255-255 acpihpet0 at acpi0: 14318179 Hz acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 3 (PCI4) acpiprt2 at acpi0: bus 2 (PCI2) acpiprt3 at acpi0: bus -1 (PCI3) acpiprt4 at acpi0: bus 1 (PCI1) acpiprt5 at acpi0: bus -1 (PCI5) acpiprt6 at acpi0: bus -1 (PCI6) acpicpu0 at acpi0: C1(@1 halt!), PSS acpicpu1 at acpi0: C1(@1 halt!), PSS acpibtn0 at acpi0: VBTN acpipci0 at acpi0 PCI0: _OSC failed acpicmos0 at acpi0 cpu0: Enhanced SpeedStep 2660 MHz: speeds: 2667, 2333, 2000 MHz pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "Intel 82Q35 Host" rev 0x02 ppb0 at pci0 dev 1 function 0 "Intel 82Q35 PCIE" rev 0x02: msi pci1 at ppb0 bus 1 radeondrm0 at pci1 dev 0 function 0 "ATI Radeon HD 2400 Pro" rev 0x00 drm0 at radeondrm0 radeondrm0: msi "Intel 82Q35 HECI" rev 0x02 at pci0 dev 3 function 0 not configured pciide0 at pci0 dev 3 function 2 "Intel 82Q35 PT IDER" rev 0x02: DMA (unsupported), channel 0 wired to native-PCI, channel 1 wired to native-PCI pciide0: using apic 8 int 18 for native-PCI interrupt pciide0: channel 0 ignored (not responding; disabled or no drives?) pciide0: channel 1 ignored (not responding; disabled or no drives?) puc0 at pci0 dev 3 function 3 "Intel 82Q35 KT" rev 0x02: ports: 16 com com4 at puc0 port 0 apic 8 int 17: ns16550a, 16 byte fifo com4: probed fifo depth: 0 bytes em0 at pci0 dev 25 function 0 "Intel ICH9 IGP AMT" rev 0x02: msi, address 00:1e:4f:f4:e8:50 uhci0 at pci0 dev 26 function 0 "Intel 82801I USB" rev 0x02: apic 8 int 16 uhci1 at pci0 dev 26 function 1 "Intel 82801I USB" rev 0x02: apic 8 int 17 ehci0 at pci0 dev 26 function 7 "Intel 82801I USB" rev 0x02: apic 8 int 22 usb0 at ehci0: USB revision 2.0 uhub0 at usb0 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 azalia0 at pci0 dev 27 function 0 "Intel 82801I HD Audio" rev 0x02: msi azalia0: codecs: Analog Devices AD1984 audio0 at azalia0 ppb1 at pci0 dev 28 function 0 "Intel 82801I PCIE" rev 0x02: msi pci2 at ppb1 bus 2 uhci2 at pci0 dev 29 function 0 "Intel 82801I USB" rev 0x02: apic 8 int 23 uhci3 at pci0 dev 29 function 1 "Intel 82801I USB" rev 0x02: apic 8 int 17 uhci4 at pci0 dev 29 function 2 "Intel 82801I USB" rev 0x02: apic 8 int 18 ehci1 at pci0 dev 29 function 7 "Intel 82801I USB" rev 0x02: apic 8 int 23 usb1 at ehci1: USB revision 2.0 uhub1 at usb1 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 ppb2 at pci0 dev 30 function 0 "Intel 82801BA Hub-to-PCI" rev 0x92 pci3 at ppb2 bus 3 sis0 at pci3 dev 2 function 0 "NS DP83815" rev 0x00, DP83816A: apic 8 int 18, address 00:0f:b5:42:59:c0 nsphyter0 at sis0 phy 0: DP83815 10/100 PHY, rev. 1 pcib0 at pci0 dev 31 function 0 "Intel 82801IO LPC" rev 0x02 ahci0 at pci0 dev 31 function 2 "Intel 82801I AHCI" rev 0x02: msi, AHCI 1.2 ahci0: port 0: 3.0Gb/s ahci0: port 1: 1.5Gb/s ahci0: PHY offline on port 2 ahci0: PHY offline on port 3 ahci0: PHY offline on port 5 scsibus1 at ahci0: 32 targets sd0 at scsibus1 targ 0 lun 0: <ATA, ST3160815AS, 3.AD> SCSI3 0/direct fixed t10.ATA_ST3160815AS_9RX7BKBD sd0: 152587MB, 512 bytes/sector, 312500000 sectors cd0 at scsibus1 targ 1 lun 0: <HL-DT-ST, DVD+-RW GSA-H73N, B103> ATAPI 5/cdrom removable ichiic0 at pci0 dev 31 function 3 "Intel 82801I SMBus" rev 0x02: apic 8 int 18 iic0 at ichiic0 spdmem0 at iic0 addr 0x50: 1GB DDR2 SDRAM non-parity PC2-5300CL5 spdmem1 at iic0 addr 0x51: 1GB DDR2 SDRAM non-parity PC2-5300CL5 spdmem2 at iic0 addr 0x52: 1GB DDR2 SDRAM non-parity PC2-5300CL5 spdmem3 at iic0 addr 0x53: 1GB DDR2 SDRAM non-parity PC2-5300CL5 usb2 at uhci0: USB revision 1.0 uhub2 at usb2 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb3 at uhci1: USB revision 1.0 uhub3 at usb3 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb4 at uhci2: USB revision 1.0 uhub4 at usb4 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb5 at uhci3: USB revision 1.0 uhub5 at usb5 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb6 at uhci4: USB revision 1.0 uhub6 at usb6 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1 isa0 at pcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo pckbc0 at isa0 port 0x60/5 irq 1 irq 12 pckbd0 at pckbc0 (kbd slot) wskbd0 at pckbd0: console keyboard pcppi0 at isa0 port 0x61 spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 vmm0 at mainbus0: VMX (using slow L1TF mitigation) uhidev0 at uhub2 port 1 configuration 1 interface 0 "Dell Dell USB Keyboard" rev 1.10/3.52 addr 2 uhidev0: iclass 3/1 ukbd0 at uhidev0: 8 variable keys, 6 key codes wskbd1 at ukbd0 mux 1 uhidev1 at uhub2 port 2 configuration 1 interface 0 "Dell Dell Premium USB Optical Mouse" rev 2.00/29.00 addr 3 uhidev1: iclass 3/1 ums0 at uhidev1: 5 buttons, Z and W dir wsmouse0 at ums0 mux 0 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets root on sd0a (f1307242b412e6c8.a) swap on sd0b dump on sd0b initializing kernel modesetting (RV610 0x1002:0x94C3 0x1028:0x0402 0x00). drm:pid0:r600_init *ERROR* Expecting atombios for R600 GPU drm:pid0:radeondrm_attachhook *ERROR* Fatal error during GPU init uvm_fault(0xffffffff81fb9030, 0x8, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff81663953 cs 8 rflags 10217 cr2 8 cpl 0 rsp ffffffff82291da0 gsbase 0xffffffff81f2fff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff81663953 Starting stack trace... panic() at panic+0x11b kerntrap(ffffffff82291cf0) at kerntrap+0x114 alltraps_kern_meltdown(6,0,ffffffff81f2cbf8,0,0,ffff80000007f000) at alltraps_kern_meltdown+0x7b unregister_acpi_notifier(ffff800000081b28) at unregister_acpi_notifier+0x23 radeondrm_detach_kms(ffff80000007f000,0) at radeondrm_detach_kms+0x3b config_detach(ffff80000007f000,0) at config_detach+0x152 radeondrm_attachhook(ffff80000007f000) at radeondrm_attachhook+0x2ea config_process_deferred_mountroot() at config_process_deferred_mountroot+0x6b main(0) at main+0x745 end trace frame: 0x0, count: 248 End of stack trace. syncing disks... done dumping to dev 4,1 offset 280707 dump ...
