Dear Development-Team,

I try for several weeks to build an fully encrypted USB flash drive runnning OpenBSD 5.9. Everything works fine but if I boot from the flash-drive it always ends in a kernel panic ("root device not found"). It also happens when booting from an uncrypted flash-drive. May you can help me? I figured out that there is a problem with the USB because USB-ports become disabled.


Short dump:

uhub2 at uhub0 port 1 ?Intel Rate Matching Hub? rev 2.00/0.00 addr 2
uvideo0 at uhub2 port 2 configuration 1 interface 0 ?SuYin USB 2.0 Camera? rev 2.00/5.40 addr 3
video0 at uvideo0
uhub3 at uhub1 port 1 ?Intel Rate Matching Hub? rev 2.00/0.00 addr 2
uhub3: device problem, disabling port 2
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
panic: root device (eb345649413b5bbf) not found
Stopped at       Debugger+0x7:    leave
    TID    PID     UID    PRFLAGS     PFLAGS    CPU    COMMAND
*   0        0         0        0x10000     0x200        0        swapper
Debugger (d0a07e68 ,d0d55d74, d09e1498, d0d55d74, d53cc420) at Debugger+0x7
panic(d09e1498,eb,34,56,49) at panic+0x71
setroot(d5592600,0,4000,d0d55eb4,0) at setroot+0xb8f
diskconf(d09d65c1,0,d09dd3a9,0,d039ccb0) at diskconf+0x115
main(d02004cd,d02004d5,0,0,0) at main+0x591


ps

   TID       PPID    PGRP    UID    S      FLAGS            WAIT       COMMAND
19493      0      0     0           3      0x14200          bored     crypto
16063      0      0     0           3      0x14200          pftm      pfpurge
17741      0      0     0           3      0x14200          mmctsk    sdmmc1
28488      0      0     0           3      0x14200          mmctsk    sdmmc0
30452      0      0     0           3      0x14200          usbtsk    usbtsk
21827      0      0     0           3      0x14200          usbatsk   usbatsk
31025      0      0     0           3      0x14200          bored     sensors
20962      0      0     0           3      0x40014200       acpi0     acpi0
 2861      0      0     0           1      0x14200                    idle3
20206      0      0     0           1      0x14200                    idle2
17634      0      0     0           1      0x14200                    idle1
 1511      0      0     0           3      0x14200          bored     softnet
31620      0      0     0           3      0x14200          bore      systqmp
16113      0      0     0           3      0x14200          bored     systq
 1606      0      0     0           3      0x40014200                 idle0
26608      0      0     0           3      0x14200          bore      sbar
27891      0      0     0           3      0x14200          kmalloc   kmthread
    1      0      0     0           3            0          initexec  swapper
*   0     -1      0     0           7      0x10200                    swapper



Maybe you have a solution to my problem or any advice how to avoid the kernel panic.


Cheers & Thanks
Thorsten



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