Hi, using a recent snapshot of 4.9, some USB devices are no longer attached on boot. They used to be detected/attached automatically in OpenBSD 4.8.
The dmesg outputs attached below show how my KORG nanokontrol midi controller gets attached in 4.8 but is completely ignored in the recent snapshot. After booting, if I disconnect/reconnect it, the device LED lights up shortly, then turns off again (no console output). If I then connect it to a different port, it gets attached and works normally. Afterwards, when connected to the original port again, it works as well. ----- DMESG 4.8 ----- OpenBSD 4.8 (GENERIC.MP) #359: Mon Aug 16 09:16:26 MDT 2010 dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC.MP cpu0: Intel(R) Atom(TM) CPU N270 @ 1.60GHz ("GenuineIntel" 686-class) 1.60 GHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,EST,TM2,SSSE3,xTPR,PDCM,MOVBE real mem = 1061449728 (1012MB) avail mem = 1034100736 (986MB) mainbus0 at root bios0 at mainbus0: AT/286+ BIOS, date 03/06/09, SMBIOS rev. 2.6 @ 0xe91f0 (42 entries) bios0: vendor Intel Corp. version "JT94510H.86A.0025.2009.0306.1639" date 03/06/2009 bios0: Intel Corporation D945GSEJT acpi0 at bios0: rev 2 acpi0: sleep states S0 S1 S3 S4 S5 acpi0: tables DSDT FACP APIC MCFG SSDT SSDT SSDT acpi0: wakeup devices P0P2(S4) PEGP(S4) USB0(S3) USB1(S3) USB2(S3) USB3(S3) EHCI(S3) MC97(S4) P0P1(S4) PS2K(S3) PS2M(S3) UAR1(S3) UAR2(S3) P0P4(S4) P0P5(S4) P0P6(S4) PWRB(S3) acpitimer0 at acpi0: 3579545 Hz, 24 bits acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: apic clock running at 133MHz cpu1 at mainbus0: apid 1 (application processor) cpu1: Intel(R) Atom(TM) CPU N270 @ 1.60GHz ("GenuineIntel" 686-class) 1.60 GHz cpu1: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,EST,TM2,SSSE3,xTPR,PDCM,MOVBE ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus -1 (P0P2) acpiprt2 at acpi0: bus 5 (P0P1) acpiprt3 at acpi0: bus 1 (P0P4) acpiprt4 at acpi0: bus 2 (P0P5) acpicpu0 at acpi0: C3, C2, C1, PSS acpicpu1 at acpi0: C3, C2, C1, PSS acpibtn0 at acpi0: PWRB acpivideo0 at acpi0: IGD_ acpivout0 at acpivideo0: DD01 acpivout1 at acpivideo0: DD02 acpivout2 at acpivideo0: DD03 acpivout3 at acpivideo0: DD04 bios0: ROM list: 0xc0000/0xec00! 0xcf000/0x1000 cpu0: Enhanced SpeedStep 1597 MHz: speeds: 1600, 1333, 1067, 800 MHz pci0 at mainbus0 bus 0: configuration mode 1 (bios) pchb0 at pci0 dev 0 function 0 "Intel 82945GME Host" rev 0x03 vga1 at pci0 dev 2 function 0 "Intel 82945GME Video" rev 0x03 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) intagp0 at vga1 agp0 at intagp0: aperture at 0xd0000000, size 0x10000000 inteldrm0 at vga1: apic 2 int 16 (irq 11) drm0 at inteldrm0 "Intel 82945GM Video" rev 0x03 at pci0 dev 2 function 1 not configured azalia0 at pci0 dev 27 function 0 "Intel 82801GB HD Audio" rev 0x02: apic 2 int 16 (irq 11) azalia0: codecs: Realtek ALC662 audio0 at azalia0 ppb0 at pci0 dev 28 function 0 "Intel 82801GB PCIE" rev 0x02 pci1 at ppb0 bus 1 re0 at pci1 dev 0 function 0 "Realtek 8168" rev 0x03: RTL8168D/8111D (0x2800), apic 2 int 16 (irq 11), address 00:27:0e:01:8f:99 rgephy0 at re0 phy 7: RTL8169S/8110S PHY, rev. 2 ppb1 at pci0 dev 28 function 1 "Intel 82801GB PCIE" rev 0x02 pci2 at ppb1 bus 2 ppb2 at pci0 dev 28 function 2 "Intel 82801GB PCIE" rev 0x02 pci3 at ppb2 bus 3 ppb3 at pci0 dev 28 function 3 "Intel 82801GB PCIE" rev 0x02 pci4 at ppb3 bus 4 uhci0 at pci0 dev 29 function 0 "Intel 82801GB USB" rev 0x02: apic 2 int 23 (irq 10) uhci1 at pci0 dev 29 function 1 "Intel 82801GB USB" rev 0x02: apic 2 int 19 (irq 11) uhci2 at pci0 dev 29 function 2 "Intel 82801GB USB" rev 0x02: apic 2 int 18 (irq 7) uhci3 at pci0 dev 29 function 3 "Intel 82801GB USB" rev 0x02: apic 2 int 16 (irq 11) ehci0 at pci0 dev 29 function 7 "Intel 82801GB USB" rev 0x02: apic 2 int 23 (irq 10) ehci0: timed out waiting for BIOS usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 ppb4 at pci0 dev 30 function 0 "Intel 82801BAM Hub-to-PCI" rev 0xe2 pci5 at ppb4 bus 5 ichpcib0 at pci0 dev 31 function 0 "Intel 82801GBM LPC" rev 0x02: PM disabled pciide0 at pci0 dev 31 function 1 "Intel 82801GB IDE" rev 0x02: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility pciide0: channel 0 disabled (no drives) pciide0: channel 1 disabled (no drives) pciide1 at pci0 dev 31 function 2 "Intel 82801GBM SATA" rev 0x02: DMA, channel 0 configured to native-PCI, channel 1 configured to native-PCI pciide1: using apic 2 int 19 (irq 11) for native-PCI interrupt wd0 at pciide1 channel 0 drive 0: <WDC WD1600BEVT-00ZCT0> wd0: 16-sector PIO, LBA48, 152627MB, 312581808 sectors wd0(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 6 ichiic0 at pci0 dev 31 function 3 "Intel 82801GB SMBus" rev 0x02: apic 2 int 19 (irq 11) iic0 at ichiic0 spdmem0 at iic0 addr 0x50: 1GB DDR2 SDRAM non-parity PC2-6400CL5 SO-DIMM usb1 at uhci0: USB revision 1.0 uhub1 at usb1 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb2 at uhci1: USB revision 1.0 uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb3 at uhci2: USB revision 1.0 uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb4 at uhci3: USB revision 1.0 uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1 isa0 at ichpcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard, using wsdisplay0 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 wbsio0 at isa0 port 0x2e/2: W83627DHG-P rev 0x73 lm1 at wbsio0 port 0xa00/8: W83627DHG npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 mtrr: Pentium Pro MTRR support umass0 at uhub0 port 3 configuration 1 interface 0 "SanDisk SDDR-113" rev 2.00/94.12 addr 2 umass0: using SCSI over Bulk-Only scsibus0 at umass0: 2 targets, initiator 0 sd0 at scsibus0 targ 1 lun 0: <SanDisk, SDDR-113, 9412> SCSI0 0/direct removable sd0: 3774MB, 512 bytes/sec, 7729152 sec total uhidev0 at uhub1 port 1 configuration 1 interface 0 "CHESEN PS2 to USB Converter" rev 1.10/0.10 addr 2 uhidev0: iclass 3/1 ukbd0 at uhidev0: 8 modifier keys, 6 key codes wskbd1 at ukbd0 mux 1 wskbd1: connecting to wsdisplay0 uhidev1 at uhub1 port 1 configuration 1 interface 1 "CHESEN PS2 to USB Converter" rev 1.10/0.10 addr 2 uhidev1: iclass 3/1, 3 report ids ums0 at uhidev1 reportid 1: 5 buttons, Z dir wsmouse0 at ums0 mux 0 uhid0 at uhidev1 reportid 2: input=1, output=0, feature=0 uhid1 at uhidev1 reportid 3: input=3, output=0, feature=0 softraid0 at root root on sd0a swap on sd0b dump on sd0b umidi0 at uhub2 port 2 configuration 1 interface 0 "KORG INC. nanoKONTROL" rev 1.10/1.00 addr 2 umidi0: (genuine USB-MIDI) umidi0: out=1, in=1 midi0 at umidi0: <USB MIDI I/F> ----- DMESG 4.9 (snapshot) ----- OpenBSD 4.9 (GENERIC.MP) #785: Fri Feb 18 14:16:01 MST 2011 t...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC.MP cpu0: Intel(R) Atom(TM) CPU N270 @ 1.60GHz ("GenuineIntel" 686-class) 1.60 GHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,EST,TM2,SSSE3,xTPR,PDCM,MOVBE real mem = 1061449728 (1012MB) avail mem = 1033928704 (986MB) mainbus0 at root bios0 at mainbus0: AT/286+ BIOS, date 03/06/09, SMBIOS rev. 2.6 @ 0xe91f0 (42 entries) bios0: vendor Intel Corp. version "JT94510H.86A.0025.2009.0306.1639" date 03/06/2009 bios0: Intel Corporation D945GSEJT acpi0 at bios0: rev 2 acpi0: sleep states S0 S1 S3 S4 S5 acpi0: tables DSDT FACP APIC MCFG SSDT SSDT SSDT acpi0: wakeup devices P0P2(S4) PEGP(S4) USB0(S3) USB1(S3) USB2(S3) USB3(S3) EHCI(S3) MC97(S4) P0P1(S4) PS2K(S3) PS2M(S3) UAR1(S3) UAR2(S3) P0P4(S4) P0P5(S4) P0P6(S4) PWRB(S3) acpitimer0 at acpi0: 3579545 Hz, 24 bits acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: apic clock running at 133MHz cpu1 at mainbus0: apid 1 (application processor) cpu1: Intel(R) Atom(TM) CPU N270 @ 1.60GHz ("GenuineIntel" 686-class) 1.60 GHz cpu1: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,EST,TM2,SSSE3,xTPR,PDCM,MOVBE ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins acpimcfg0 at acpi0 addr 0xe0000000, bus 0-255 acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus -1 (P0P2) acpiprt2 at acpi0: bus 5 (P0P1) acpiprt3 at acpi0: bus 1 (P0P4) acpiprt4 at acpi0: bus 2 (P0P5) acpicpu0 at acpi0: C3, C2, C1, PSS acpicpu1 at acpi0: C3, C2, C1, PSS acpibtn0 at acpi0: PWRB acpivideo0 at acpi0: IGD_ acpivout0 at acpivideo0: DD01 acpivout1 at acpivideo0: DD02 acpivout2 at acpivideo0: DD03 acpivout3 at acpivideo0: DD04 bios0: ROM list: 0xc0000/0xec00! 0xcf000/0x1000 cpu0: Enhanced SpeedStep 1597 MHz: speeds: 1600, 1333, 1067, 800 MHz pci0 at mainbus0 bus 0: configuration mode 1 (bios) pchb0 at pci0 dev 0 function 0 "Intel 82945GME Host" rev 0x03 vga1 at pci0 dev 2 function 0 "Intel 82945GME Video" rev 0x03 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) intagp0 at vga1 agp0 at intagp0: aperture at 0xd0000000, size 0x10000000 inteldrm0 at vga1: apic 2 int 16 (irq 11) drm0 at inteldrm0 "Intel 82945GM Video" rev 0x03 at pci0 dev 2 function 1 not configured azalia0 at pci0 dev 27 function 0 "Intel 82801GB HD Audio" rev 0x02: apic 2 int 16 (irq 11) azalia0: codecs: Realtek ALC662 audio0 at azalia0 ppb0 at pci0 dev 28 function 0 "Intel 82801GB PCIE" rev 0x02 pci1 at ppb0 bus 1 re0 at pci1 dev 0 function 0 "Realtek 8168" rev 0x03: RTL8168D/8111D (0x2800), apic 2 int 16 (irq 11), address 00:27:0e:01:8f:99 rgephy0 at re0 phy 7: RTL8169S/8110S PHY, rev. 2 ppb1 at pci0 dev 28 function 1 "Intel 82801GB PCIE" rev 0x02 pci2 at ppb1 bus 2 ppb2 at pci0 dev 28 function 2 "Intel 82801GB PCIE" rev 0x02 pci3 at ppb2 bus 3 ppb3 at pci0 dev 28 function 3 "Intel 82801GB PCIE" rev 0x02 pci4 at ppb3 bus 4 uhci0 at pci0 dev 29 function 0 "Intel 82801GB USB" rev 0x02: apic 2 int 23 (irq 10) uhci1 at pci0 dev 29 function 1 "Intel 82801GB USB" rev 0x02: apic 2 int 19 (irq 11) uhci2 at pci0 dev 29 function 2 "Intel 82801GB USB" rev 0x02: apic 2 int 18 (irq 7) uhci3 at pci0 dev 29 function 3 "Intel 82801GB USB" rev 0x02: apic 2 int 16 (irq 11) ehci0 at pci0 dev 29 function 7 "Intel 82801GB USB" rev 0x02: apic 2 int 23 (irq 10) ehci0: timed out waiting for BIOS usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 ppb4 at pci0 dev 30 function 0 "Intel 82801BAM Hub-to-PCI" rev 0xe2 pci5 at ppb4 bus 5 ichpcib0 at pci0 dev 31 function 0 "Intel 82801GBM LPC" rev 0x02: PM disabled pciide0 at pci0 dev 31 function 1 "Intel 82801GB IDE" rev 0x02: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility pciide0: channel 0 disabled (no drives) pciide0: channel 1 disabled (no drives) pciide1 at pci0 dev 31 function 2 "Intel 82801GBM SATA" rev 0x02: DMA, channel 0 configured to native-PCI, channel 1 configured to native-PCI pciide1: using apic 2 int 19 (irq 11) for native-PCI interrupt wd0 at pciide1 channel 0 drive 0: <WDC WD1600BEVT-00ZCT0> wd0: 16-sector PIO, LBA48, 152627MB, 312581808 sectors wd0(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 6 ichiic0 at pci0 dev 31 function 3 "Intel 82801GB SMBus" rev 0x02: apic 2 int 19 (irq 11) iic0 at ichiic0 spdmem0 at iic0 addr 0x50: 1GB DDR2 SDRAM non-parity PC2-6400CL5 SO-DIMM usb1 at uhci0: USB revision 1.0 uhub1 at usb1 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb2 at uhci1: USB revision 1.0 uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb3 at uhci2: USB revision 1.0 uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb4 at uhci3: USB revision 1.0 uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1 isa0 at ichpcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard, using wsdisplay0 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 wbsio0 at isa0 port 0x2e/2: W83627DHG-P rev 0x73 lm1 at wbsio0 port 0xa00/8: W83627DHG npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 mtrr: Pentium Pro MTRR support umass0 at uhub0 port 3 configuration 1 interface 0 "SanDisk SDDR-113" rev 2.00/94.12 addr 2 umass0: using SCSI over Bulk-Only scsibus0 at umass0: 2 targets, initiator 0 sd0 at scsibus0 targ 1 lun 0: <SanDisk, SDDR-113, 9412> SCSI0 0/direct removable sd0: 3774MB, 512 bytes/sec, 7729152 sec total uhidev0 at uhub1 port 1 configuration 1 interface 0 "CHESEN PS2 to USB Converter" rev 1.10/0.10 addr 2 uhidev0: iclass 3/1 ukbd0 at uhidev0: 8 modifier keys, 6 key codes wskbd1 at ukbd0 mux 1 wskbd1: connecting to wsdisplay0 uhidev1 at uhub1 port 1 configuration 1 interface 1 "CHESEN PS2 to USB Converter" rev 1.10/0.10 addr 2 uhidev1: iclass 3/1, 3 report ids ums0 at uhidev1 reportid 1: 5 buttons, Z dir wsmouse0 at ums0 mux 0 uhid0 at uhidev1 reportid 2: input=1, output=0, feature=0 uhid1 at uhidev1 reportid 3: input=3, output=0, feature=0 vscsi0 at root scsibus1 at vscsi0: 256 targets softraid0 at root root on wd0a swap on wd0b dump on wd0b