On Fri, Apr 21, 2017 at 11:05:57AM +0200, Caspar Schutijser wrote:
> Hi,
>
> On my laptop with the 'CJ' malloc.conf settings, vmd prints
> vmd(89133) in free(): chunk canary corrupted 0xf3533df9000 0x5dc@0x5dc
> when I'm trying to request an IP address via DHCP. I'm using the
> recently added local network interface option. Without the 'CJ'
> malloc.conf settings, this problem does not appear.
>
Thanks, I can reproduce it here.
Something overflows the allocated respbuf from dhcp.c ("dhcppkt").
I will have a look at it.
(gdb) bt
#0 0x0000187c93aa00fa in thrkill () at {standard input}:5
#1 0x0000187c93a79f29 in *_libc_abort ()
at /usr/src/lib/libc/stdlib/abort.c:52
#2 0x0000187c93a8ffe6 in wrterror (d=0x187d0c87bee0,
msg=0x187c93bf2360 "chunk canary corrupted %p %#tx@%#zx")
at /usr/src/lib/libc/stdlib/malloc.c:306
#3 0x0000187c93a900c2 in validate_canary (d=Variable "d" is not available.)
at /usr/src/lib/libc/stdlib/malloc.c:1053
#4 0x0000187c93a90173 in find_chunknum (d=0x187ceadf18f0, r=Variable "r" is
not available.)
at /usr/src/lib/libc/stdlib/malloc.c:1072
#5 0x0000187c93a91544 in ofree (argpool=0x187ceadf18f0, p=0x187ca65b0000,
clear=0, check=0, argsz=0) at /usr/src/lib/libc/stdlib/malloc.c:1387
#6 0x0000187c93a91953 in free (ptr=0x187ca65b0000)
at /usr/src/lib/libc/stdlib/malloc.c:1439
#7 0x0000187a72313250 in vionet_notifyq (dev=0x187cba74af00) at virtio.c:1416
#8 0x0000187a72312009 in virtio_net_io (dir=0, reg=16, data=0x187cc50b0c48,
intr=0x187d0c87c2a7 "O\0162r|\207\f}\030", cookie=0x187cba74af00,
sz=2 '\002') at virtio.c:907
#9 0x0000187a7230f9ad in pci_handle_io (vrp=0x187d061d0300) at pci.c:259
#10 0x0000187a7230c179 in vcpu_exit_pci (vrp=0x187d061d0300) at vm.c:1027
#11 0x0000187a7230c201 in vcpu_exit_inout (vrp=0x187d061d0300) at vm.c:1054
#12 0x0000187a7230c2ec in vcpu_exit (vrp=0x187d061d0300) at vm.c:1102
#13 0x0000187a7230c011 in vcpu_run_loop (arg=0x187d061d0300) at vm.c:965
Reyk
>
> Steps to reproduce:
>
> Execute in terminal 1:
> # ln -s 'CJ' /etc/malloc.conf
> # vmd -dvv
>
> Execute in terminal 2:
> # vmctl start test -cLb /bsd.rd
> vmctl: starting without disks
> Connected to /dev/ttyp8 (speed 9600)
>
> Copyright (c) 1982, 1986, 1989, 1991, 1993
> The Regents of the University of California. All rights reserved.
> Copyright (c) 1995-2017 OpenBSD. All rights reserved. https://www.OpenBSD.org
>
> OpenBSD 6.1-current (RAMDISK_CD) #8: Thu Apr 20 23:14:18 MDT 2017
> [email protected]:/usr/src/sys/arch/amd64/compile/RAMDISK_CD
> real mem = 520093696 (496MB)
> avail mem = 500637696 (477MB)
> mainbus0 at root
> bios0 at mainbus0
> acpi at bios0 not configured
> cpu0 at mainbus0: (uniprocessor)
> cpu0: Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz, 2295.34 MHz
> cpu0:
> FPU,VME,DE,PSE,MSR,PAE,MCE,CX8,SEP,PGE,MCA,CMOV,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2
> ,SSE3,PCLMUL,SSSE3,CX16,SSE4.1,SSE4.2,POPCNT,AES,XSAVE,F16C,RDRAND,HV,NXE,LONG,LAHF,
> FSGSBASE,SMEP,ERMS
> cpu0: 256KB 64b/line 8-way L2 cache
> pvbus0 at mainbus0: OpenBSD
> pci0 at mainbus0 bus 0
> pchb0 at pci0 dev 0 function 0 "OpenBSD VMM Host" rev 0x00
> virtio0 at pci0 dev 1 function 0 "Qumranet Virtio RNG" rev 0x00
> viornd0 at virtio0
> virtio0: irq 3
> virtio1 at pci0 dev 2 function 0 "Qumranet Virtio Network" rev 0x00
> vio0 at virtio1: address fe:e1:bb:d1:13:23
> virtio1: irq 5
> virtio2 at pci0 dev 3 function 0 "OpenBSD VMM Control" rev 0x00
> virtio2: no matching child driver; not configured
> isa0 at mainbus0
> com0 at isa0 port 0x3f8/8 irq 4: ns8250, no fifo
> com0: console
> softraid0 at root
> scsibus0 at softraid0: 256 targets
> root on rd0a swap on rd0b dump on rd0b
>
> erase ^?, werase ^W, kill ^U, intr ^C, status ^T
>
> Welcome to the OpenBSD/amd64 6.1 installation program.
> (I)nstall, (U)pgrade, (A)utoinstall or (S)hell? i
> At any prompt except password prompts you can escape to a shell by
> typing '!'. Default answers are shown in []'s and are selected by
> pressing RETURN. You can exit this program at any time by pressing
> Control-C, but this can leave your system in an inconsistent state.
>
> Terminal type? [vt220]
> System hostname? (short form, e.g. 'foo') test
>
> Available network interfaces are: vio0 vlan0.
> Which network interface do you wish to configure? (or 'done') [vio0]
> IPv4 address for vio0? (or 'dhcp' or 'none') [dhcp]
> DHCPDISCOVER on vio0 - interval 1
>
>
>
> If you at this point switch back to terminal 1 which is running vmd in
> the foreground, you see the following:
>
> startup
> failed to open /etc/vm.conf: No such file or directory
> vm_opentty: vm test tty /dev/ttyp8 uid 0 gid 4 mode 620
> vm_priv_ifconfig: interface tap0 description vm1-if0-test
> vm_priv_ifconfig: interface tap0 address 100.64.1.2/31
> test: started vm 1 successfully, tty /dev/ttyp8
> loadfile_elf: loaded ELF kernel
> run_vm: initializing hardware for vm test
> virtio_init: vm "test" vio0 lladdr fe:e1:bb:d1:13:23, local
> run_vm: starting vcpu threads for vm test
> vcpu_reset: resetting vcpu 0 for vm 12
> run_vm: waiting on events for VM test
> i8259_write_datareg: master pic, reset IRQ vector to 0x20
> i8259_write_datareg: slave pic, reset IRQ vector to 0x28
> vcpu_exit_i8253: channel 0 reset, mode=7, start=11932
> virtio_net_io: device reset
> virtio_net_io: device reset
> vionet: dhcp request, local response size 342
> vmd(89133) in free(): chunk canary corrupted 0xf3533df9000 0x5dc@0x5dc
>
>
> Thanks,
> Caspar Schutijser
>
> --
>
> OpenBSD 6.1-current (GENERIC.MP) #9: Thu Apr 20 23:10:49 MDT 2017
> [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
> real mem = 8283222016 (7899MB)
> avail mem = 8027496448 (7655MB)
> mpath0 at root
> scsibus0 at mpath0: 256 targets
> mainbus0 at root
> bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xdae9d000 (69 entries)
> bios0: vendor LENOVO version "G4ET37WW (1.12 )" date 05/29/2012
> bios0: LENOVO 2429DT7
> 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 UEFI
> 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) i7-3610QM CPU @ 2.30GHz, 2295.21 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,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,SENSOR,ARAT
> cpu0: 256KB 64b/line 8-way L2 cache
> cpu0: TSC frequency 2295212800 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=0.2.1.1.2, IBE
> cpu1 at mainbus0: apid 1 (application processor)
> cpu1: Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz, 2294.79 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,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,SENSOR,ARAT
> 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) i7-3610QM CPU @ 2.30GHz, 2294.79 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,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,SENSOR,ARAT
> 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) i7-3610QM CPU @ 2.30GHz, 2294.79 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,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,SENSOR,ARAT
> cpu3: 256KB 64b/line 8-way L2 cache
> cpu3: smt 1, core 1, package 0
> cpu4 at mainbus0: apid 4 (application processor)
> cpu4: Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz, 2294.79 MHz
> cpu4:
> 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,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,SENSOR,ARAT
> cpu4: 256KB 64b/line 8-way L2 cache
> cpu4: smt 0, core 2, package 0
> cpu5 at mainbus0: apid 5 (application processor)
> cpu5: Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz, 2294.79 MHz
> cpu5:
> 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,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,SENSOR,ARAT
> cpu5: 256KB 64b/line 8-way L2 cache
> cpu5: smt 1, core 2, package 0
> cpu6 at mainbus0: apid 6 (application processor)
> cpu6: Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz, 2294.79 MHz
> cpu6:
> 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,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,SENSOR,ARAT
> cpu6: 256KB 64b/line 8-way L2 cache
> cpu6: smt 0, core 3, package 0
> cpu7 at mainbus0: apid 7 (application processor)
> cpu7: Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz, 2294.79 MHz
> cpu7:
> 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,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,SENSOR,ARAT
> cpu7: 256KB 64b/line 8-way L2 cache
> cpu7: smt 1, core 3, 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 -1 (EXP3)
> acpicpu0 at acpi0: C2(350@80 mwait.1@0x20), C1(1000@1 mwait.1), PSS
> acpicpu1 at acpi0: C2(350@80 mwait.1@0x20), C1(1000@1 mwait.1), PSS
> acpicpu2 at acpi0: C2(350@80 mwait.1@0x20), C1(1000@1 mwait.1), PSS
> acpicpu3 at acpi0: C2(350@80 mwait.1@0x20), C1(1000@1 mwait.1), PSS
> acpicpu4 at acpi0: C2(350@80 mwait.1@0x20), C1(1000@1 mwait.1), PSS
> acpicpu5 at acpi0: C2(350@80 mwait.1@0x20), C1(1000@1 mwait.1), PSS
> acpicpu6 at acpi0: C2(350@80 mwait.1@0x20), C1(1000@1 mwait.1), PSS
> acpicpu7 at acpi0: C2(350@80 mwait.1@0x20), 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
> "PNP0303" at acpi0 not configured
> "LEN0015" at acpi0 not configured
> acpibat0 at acpi0: BAT0 model "45N1013" serial 19816 type LION oem "SANYO"
> acpiac0 at acpi0: AC unit online
> acpithinkpad0 at acpi0
> "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 2295 MHz: speeds: 2301, 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
> 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:22:0a:b0
> 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
> audio0 at azalia0
> ppb0 at pci0 dev 28 function 0 "Intel 7 Series PCIE" rev 0xc4: msi
> pci1 at ppb0 bus 2
> sdhc0 at pci1 dev 0 function 0 "Ricoh 5U823 SD/MMC" rev 0x05: apic 2 int 16
> sdhc0: SDHC 3.0, 50 MHz base clock
> sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed, dma
> 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 60:67:20:44:f9:84
> 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, EMT0> SCSI3 0/direct
> fixed naa.5002538d401db2c2
> sd0: 476940MB, 512 bytes/sector, 976773168 sectors, thin
> cd0 at scsibus1 targ 1 lun 0: <Optiarc, DVD RW AD-7740H, 1.S0> 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: 4GB DDR3 SDRAM PC3-12800 SO-DIMM
> spdmem1 at iic0 addr 0x51: 4GB DDR3 SDRAM PC3-12800 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
> pcppi0 at isa0 port 0x61
> spkr0 at pcppi0
> vmm0 at mainbus0: VMX/EPT
> uhidev0 at uhub0 port 1 configuration 1 interface 0 "Holtek USB Keyboard" rev
> 1.10/1.01 addr 2
> uhidev0: iclass 3/1
> ukbd0 at uhidev0: 8 variable keys, 6 key codes
> wskbd1 at ukbd0 mux 1
> wskbd1: connecting to wsdisplay0
> uhidev1 at uhub0 port 1 configuration 1 interface 1 "Holtek USB Keyboard" rev
> 1.10/1.01 addr 2
> uhidev1: iclass 3/1, 2 report ids
> uhid0 at uhidev1 reportid 1: input=6, output=0, feature=0
> uhid1 at uhidev1 reportid 2: input=1, output=0, feature=0
> uhidev2 at uhub0 port 2 configuration 1 interface 0 "Logitech USB Laser
> Mouse" rev 2.00/56.01 addr 3
> uhidev2: iclass 3/1
> ums0 at uhidev2: 8 buttons, Z and W dir
> wsmouse2 at ums0 mux 0
> uhub3 at uhub1 port 1 configuration 1 interface 0 "Intel Rate Matching Hub"
> rev 2.00/0.00 addr 2
> 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
> sd1 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006> SCSI2 0/direct fixed
> sd1: 386932MB, 512 bytes/sector, 792437664 sectors
> root on sd1a (e5feaad7e6d89dfd.a) swap on sd1b dump on sd1b
>
--