hello, seams that some recent changes to the scsi layer has broken the umass support. i tested with two different usb2.0 harddrive models.
dmesg of working kernel from 3.Nov and broken dmesg with trace and ps output. if u need further testing please contact me. best regards thomas OpenBSD 4.0-current (GENERIC) #1197: Fri Nov 3 03:49:15 MST 2006 [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC cpu0: Intel Pentium III ("GenuineIntel" 686-class, 512KB L2 cache) 548 MHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE real mem = 268005376 (261724K) avail mem = 236683264 (231136K) using 3302 buffers containing 13524992 bytes (13208K) of memory mainbus0 (root) bios0 at mainbus0: AT/286+(72) BIOS, date 08/DS/99, BIOS32 rev. 0 @ 0xec700, SMBIOS rev. 2.1 @ 0xf1923 (48 entries) bios0: Compaq Deskpro EN Series SFF pcibios0 at bios0: rev 2.1 @ 0xec700/0x3900 pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xf74c0/112 (5 entries) pcibios0: PCI Interrupt Router at 000:20:0 ("Intel 82371AB PIIX4 ISA" rev 0x00) pcibios0: PCI bus #2 is the last bus bios0: ROM list: 0xc0000/0x8000 0xc8000/0x800 0xe0000/0x8000! cpu0 at mainbus0 pci0 at mainbus0 bus 0: configuration mode 1 (no bios) pchb0 at pci0 dev 0 function 0 "Intel 82443BX AGP" rev 0x03 ppb0 at pci0 dev 1 function 0 "Intel 82443BX AGP" rev 0x03 pci1 at ppb0 bus 1 vga1 at pci1 dev 0 function 0 "ATI Rage Pro" rev 0x5c wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) fxp0 at pci0 dev 10 function 0 "Intel 8255x" rev 0x05, i82558: irq 11, address 00:50:8b:a4:79:ef inphy0 at fxp0 phy 1: i82555 10/100 PHY, rev. 0 ppb1 at pci0 dev 13 function 0 "DEC 21154 PCI-PCI" rev 0x05 pci2 at ppb1 bus 2 fxp1 at pci2 dev 4 function 0 "Intel 8255x" rev 0x08, i82559: irq 11, address 00:02:a5:60:ac:dc inphy1 at fxp1 phy 1: i82555 10/100 PHY, rev. 4 fxp2 at pci2 dev 5 function 0 "Intel 8255x" rev 0x08, i82559: irq 11, address 00:02:a5:60:ac:dd inphy2 at fxp2 phy 1: i82555 10/100 PHY, rev. 4 ohci0 at pci0 dev 14 function 0 "NEC USB" rev 0x43: irq 11, version 1.0 usb0 at ohci0: USB revision 1.0 uhub0 at usb0 uhub0: NEC OHCI root hub, rev 1.00/1.00, addr 1 uhub0 at usb0 uhub0: NEC OHCI root hub, rev 1.00/1.00, addr 1 uhub0: 3 ports with 3 removable, self powered ohci1 at pci0 dev 14 function 1 "NEC USB" rev 0x43: irq 11, version 1.0 usb1 at ohci1: USB revision 1.0 uhub1 at usb1 uhub1: NEC OHCI root hub, rev 1.00/1.00, addr 1 uhub1: 2 ports with 2 removable, self powered ehci0 at pci0 dev 14 function 2 "NEC USB" rev 0x04: irq 11 usb2 at ehci0: USB revision 2.0 uhub2 at usb2 uhub2: NEC EHCI root hub, rev 2.00/1.00, addr 1 uhub2: 5 ports with 5 removable, self powered pcib0 at pci0 dev 20 function 0 "Intel 82371AB PIIX4 ISA" rev 0x02 pciide0 at pci0 dev 20 function 1 "Intel 82371AB IDE" rev 0x01: DMA, channel 0 wired to compatibility, channel 1 wired to compati bility wd0 at pciide0 channel 0 drive 0: <WDC WD100BA> wd0: 16-sector PIO, LBA, 9541MB, 19541088 sectors wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 atapiscsi0 at pciide0 channel 1 drive 0 scsibus0 at atapiscsi0: 2 targets cd0 at scsibus0 targ 0 lun 0: <COMPAQ, CD-224E, 9.0B> SCSI0 5/cdrom removable cd0(pciide0:1:0): using PIO mode 4, DMA mode 2 uhci0 at pci0 dev 20 function 2 "Intel 82371AB USB" rev 0x01: irq 11 usb3 at uhci0: USB revision 1.0 uhub3 at usb3 uhub3: Intel UHCI root hub, rev 1.00/1.00, addr 1 uhub3: 2 ports with 2 removable, self powered piixpm0 at pci0 dev 20 function 3 "Intel 82371AB Power" rev 0x02: SMI iic0 at piixpm0 maxtmp0 at iic0 addr 0x4c: max6657 isa0 at pcib0 isadma0 at isa0 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 sb0 at isa0 port 0x220/24 irq 5 drq 1: dsp v3.01 midi0 at sb0: <SB MIDI UART> audio0 at sb0 opl0 at sb0: model OPL3 midi1 at opl0: <SB Yamaha OPL3> pcppi0 at isa0 port 0x61 midi2 at pcppi0: <PC speaker> spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec biomask ff45 netmask ff45 ttymask ffc7 pctr: 686-class user-level performance counters enabled mtrr: Pentium Pro MTRR support umass0 at uhub2 port 2 configuration 1 interface 0 umass0: vendor 0x04b4 product 0x6830, rev 2.00/0.01, addr 2 umass0: using SCSI over Bulk-Only scsibus1 at umass0: 2 targets sd0 at scsibus1 targ 1 lun 0: <ST310212, A, 0000> SCSI0 0/direct fixed sd0: 9768MB, 9768 cyl, 64 head, 32 sec, 512 bytes/sec, 20005650 sec total uhidev0 at uhub3 port 1 configuration 1 interface 0 uhidev0: Logitech Optical USB Mouse, rev 2.00/3.40, addr 2, iclass 3/1 ums0 at uhidev0: 3 buttons and Z dir. wsmouse0 at ums0 mux 0 dkcsum: wd0 matches BIOS drive 0x80 root on wd0a rootdev=0x0 rrootdev=0x300 rawdev=0x302 OpenBSD 4.0-current (GENERIC) #1244: Wed Nov 29 09:22:42 MST 2006 [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC cpu0: Intel Pentium III ("GenuineIntel" 686-class, 512KB L2 cache) 548 MHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE real mem = 268005376 (261724K) avail mem = 236621824 (231076K) using 3302 buffers containing 13524992 bytes (13208K) of memory mainbus0 (root) bios0 at mainbus0: AT/286+(72) BIOS, date 08/DS/99, BIOS32 rev. 0 @ 0xec700, SMBIOS rev. 2.1 @ 0xf1923 (48 entries) bios0: Compaq Deskpro EN Series SFF pcibios0 at bios0: rev 2.1 @ 0xec700/0x3900 pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xf74c0/112 (5 entries) pcibios0: PCI Interrupt Router at 000:20:0 ("Intel 82371AB PIIX4 ISA" rev 0x00) pcibios0: PCI bus #2 is the last bus bios0: ROM list: 0xc0000/0x8000 0xc8000/0x800 0xe0000/0x8000! acpi at mainbus0 not configured cpu0 at mainbus0 pci0 at mainbus0 bus 0: configuration mode 1 (no bios) pchb0 at pci0 dev 0 function 0 "Intel 82443BX AGP" rev 0x03 ppb0 at pci0 dev 1 function 0 "Intel 82443BX AGP" rev 0x03 pci1 at ppb0 bus 1 vga1 at pci1 dev 0 function 0 "ATI Rage Pro" rev 0x5c wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) fxp0 at pci0 dev 10 function 0 "Intel 8255x" rev 0x05, i82558: irq 11, address 00:50:8b:a4:79:ef inphy0 at fxp0 phy 1: i82555 10/100 PHY, rev. 0 ppb1 at pci0 dev 13 function 0 "DEC 21154 PCI-PCI" rev 0x05 pci2 at ppb1 bus 2 fxp1 at pci2 dev 4 function 0 "Intel 8255x" rev 0x08, i82559: irq 11, address 00:02:a5:60:ac:dc inphy1 at fxp1 phy 1: i82555 10/100 PHY, rev. 4 fxp2 at pci2 dev 5 function 0 "Intel 8255x" rev 0x08, i82559: irq 11, address 00:02:a5:60:ac:dd inphy2 at fxp2 phy 1: i82555 10/100 PHY, rev. 4 ohci0 at pci0 dev 14 function 0 "NEC USB" rev 0x43: irq 11, version 1.0 usb0 at ohci0: USB revision 1.0 uhub0 at usb0 uhub0: NEC OHCI root hub, rev 1.00/1.00, addr 1 uhub0: 3 ports with 3 removable, self powered ohci1 at pci0 dev 14 function 1 "NEC USB" rev 0x43: irq 11, version 1.0 usb1 at ohci1: USB revision 1.0 uhub1 at usb1 uhub1: NEC OHCI root hub, rev 1.00/1.00, addr 1 uhub1: 2 ports with 2 removable, self powered ehci0 at pci0 dev 14 function 2 "NEC USB" rev 0x04: irq 11 usb2 at ehci0: USB revision 2.0 uhub2 at usb2 uhub2: NEC EHCI root hub, rev 2.00/1.00, addr 1 uhub2: 5 ports with 5 removable, self powered pcib0 at pci0 dev 20 function 0 "Intel 82371AB PIIX4 ISA" rev 0x02 pciide0 at pci0 dev 20 function 1 "Intel 82371AB IDE" rev 0x01: DMA, channel 0 wired to compatibility, channel 1 wired to compati bility wd0 at pciide0 channel 0 drive 0: <WDC WD100BA> wd0: 16-sector PIO, LBA, 9541MB, 19541088 sectors wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 atapiscsi0 at pciide0 channel 1 drive 0 scsibus0 at atapiscsi0: 2 targets cd0 at scsibus0 targ 0 lun 0: <COMPAQ, CD-224E, 9.0B> SCSI0 5/cdrom removable cd0(pciide0:1:0): using PIO mode 4, DMA mode 2 uhci0 at pci0 dev 20 function 2 "Intel 82371AB USB" rev 0x01: irq 11 usb3 at uhci0: USB revision 1.0 uhub3 at usb3 uhub3: Intel UHCI root hub, rev 1.00/1.00, addr 1 uhub3: 2 ports with 2 removable, self powered piixpm0 at pci0 dev 20 function 3 "Intel 82371AB Power" rev 0x02: SMI iic0 at piixpm0 maxtmp0 at iic0 addr 0x4c: max6657 isa0 at pcib0 isadma0 at isa0 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 sb0 at isa0 port 0x220/24 irq 5 drq 1: dsp v3.01 midi0 at sb0: <SB MIDI UART> audio0 at sb0 opl0 at sb0: model OPL3 midi1 at opl0: <SB Yamaha OPL3> pcppi0 at isa0 port 0x61 midi2 at pcppi0: <PC speaker> spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo pccom0: console pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec biomask ff45 netmask ff45 ttymask ffc7 pctr: 686-class user-level performance counters enabled mtrr: Pentium Pro MTRR support umass0 at uhub2 port 3 configuration 1 interface 0 umass0: Cypress Semiconductor USB2.0 Storage Device, rev 2.00/0.01, addr 2 umass0: using SCSI over Bulk-Only scsibus1 at umass0: 53464 targets panic: scsibusattach: can't allocate lun links Stopped at Debugger+0x4: leave RUN AT LEAST 'trace' AND 'ps' AND INCLUDE OUTPUT WHEN REPORTING THIS PANIC! DO NOT EVEN BOTHER REPORTING THIS WITHOUT INCLUDING THAT INFORMATION! ddb> trace Debugger(0,a,d07722d0,d0dfa000,d0de3a40) at Debugger+0x4 panic(d06a55a0,2,1,d0d8,d0733864) at panic+0x63 scsibusattach(d0df7c00,d0de3a40,e38e6dc0,0,90) at scsibusattach+0x125 config_attach(d0df7c00,d072b958,e38e6dc0,d0476fac,d0df7c00) at config_attach+0x ef umass_scsi_attach(d0df7c00,10000,1,d0df7c40) at umass_scsi_attach+0x4f umass_attach(d0d51640,d0df7c00,e38e6e64,0,0) at umass_attach+0x267 config_attach(d0d51640,d072e31c,e38e6e64,d05f9c9c) at config_attach+0xef usbd_probe_and_attach(d0d51640,d0dda180,3,2,3) at usbd_probe_and_attach+0x25f usbd_new_device(d0d51640,d0d8a000,1,3,3,d0d89760,d0d89760,0) at usbd_new_device +0x232 uhub_explore(d0dd0980,0,0,0,d62946f4) at uhub_explore+0x1a4 usb_discover(d0dd0a00,d08abe78,d0200c2d,d62946f4,d62946f4) at usb_discover+0x36 usb_event_thread(d0dd0a00) at usb_event_thread+0x35 Bad frame pointer: 0xd08abe78 ddb> ps PID PPID PGRP UID S FLAGS WAIT COMMAND 11 0 0 0 2 0x100600 pfpurge 10 0 0 0 3 0x100200 wait wskbd_hotkey 9 0 0 0 3 0x100200 timeout sensors 8 0 0 0 3 0x100200 config usb3 7 0 0 0 3 0x100200 slacking scsi * 6 0 0 0 7 0x100200 usb2 5 0 0 0 3 0x100200 config usb1 4 0 0 0 3 0x100200 usbtsk usbtask 3 0 0 0 3 0x100200 config usb0 2 0 0 0 3 0x100200 kmalloc kmthread 1 0 0 0 3 0 initexec swapper 0 -1 0 0 3 0x80200 cfpend swapper ddb>