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>Number: 60428
>Category: port-sparc64
>Synopsis: NetBSD 11.99.6/sparc64 panics on USB insertion
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: port-sparc64-maintainer
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Wed Jul 08 16:30:01 +0000 2026
>Originator: John Klos
>Release: NetBSD 11.99.6
>Organization:
>Environment:
System: NetBSD sparky.zia.io 11.99.6 NetBSD 11.99.6 (SPARKY) #0: Tue Jul 7 22:30:01 UTC 2026 [email protected]:/usr/current/obj-sparc64/sys/arch/sparc64/compile/SPARKY sparc64
Architecture: sparc64
Machine: sparc64
>Description:
NetBSD 10 on sparc64 (Sun Fire V245) couldn't use mpt*, so I used an SSD
attached via USB with a kernel which didn't have mpt*.
I decided to give a new -current kernel a try, and it panicked on boot with:
[ 1.0000000] NetBSD 11.99.6 (GENERIC) #0: Sun Jul 5 23:38:34 UTC 2026
[ 1.0000000] [email protected]:/usr/src/sys/arch/sparc64/compile/GENERIC
[ 1.0000000] total memory = 16384 MB
[ 1.0000000] avail memory = 16070 MB
[ 1.0000000] mainbus0 (root): SUNW,Sun-Fire-V245 (Sun Fire V245): hostid 84a238ca
[ 1.0000000] cpu0 at mainbus0: SUNW,UltraSPARC-IIIi @ 1504 MHz, CPU id 0
...
[ 2.7483809] uhub0 at usb0: NetBSD (0x0000) OHCI root hub (0x0000), class 9/0, rev 1.00/1.00, addr 1
[ 2.7483809] uhub1 at usb1: NetBSD (0x0000) OHCI root hub (0x0000), class 9/0, rev 1.00/1.00, addr 1
[ 2.7483809] uhub2 at usb2: NetBSD (0x0000) EHCI root hub (0x0000), class 9/0, rev 2.00/1.00, addr 1
[ 2.7483809] scsibus0: waiting 2 seconds for devices to settle...
[ 2.9047207] atapibus0 at atabus0: 2 targets
[ 2.9547218] cd0 at atapibus0 drive 0: <MATSHITADVD-RAM UJ-85JS, , F100> cdrom removable
[ 3.2547203] umass0 at uhub2 port 1 configuration 1 interface 0
[ 3.3247204] umass0: SABRENT (0x152d) SABRENT (0x1561), rev 2.10/2.04, addr 2
[ 3.4047198] scsibus1 at umass0: 2 targets, 1 lun per target
[ 4.0647202] ehci0: handing over full speed device on port 3 to ohci0
[ 4.7947203] sd0 at scsibus0 target 0 lun 0: <ATA, SAMSUNG MZ7LM480, 204Q> disk fixed
[ 4.8894218] sd0: 447 GB, 457863 cyl, 16 head, 127 sec, 512 bytes/sect x 937703088 sectors
[ 4.9873350] sd0: tagged queueing
[ 5.0447213] sd1 at scsibus1 target 0 lun 0: <SABRENT, , 0204> disk fixedpanic: kernel diagnostic assertion "devhandle_type(devhandle) == DEVHANDLE_TYPE_OF" failed: file "/usr/src/sys/arch/sparc64/sparc64/autoconf.c", line 1240
[ 5.2847198] cpu1: Begin traceback...
[ 5.3247198] cpu1: End traceback...
Stopped in pid 0.169 (system) at netbsd:cpu_Debugger+0x4: nop
db{1}> bt
kern_assert(1abc2f8, 1abc2e8, 1ac1008, 1ac0fd8, 4d8, 1c01e80) at netbsd:kern_assert+0x34
device_register(110a017c0, 5b3ec9b00, 110a00780, 0, 2060cf0, 110a00ac0) at netbsd:device_register+0x860
config_attach_internal(110a00ac0, 1, 5b3ec9b00, 0, 1ac0fc0, 20c5000) at netbsd:config_attach_internal+0x1c8
config_attach(110a00ac0, 2069fb8, 5b3ec9b00, 117c9a0, 5b3ec9b70, 8) at netbsd:config_attach+0x38
scsi_probe_device(1109b0580, 5b3ec9af8, 2069fb8, 1109e6530, 1, 2060cf0) at netbsd:scsi_probe_device+0x420
scsi_probe_bus(1109b0580, 1, 0, 1109b06a0, 110ae6090, 10dccc492) at netbsd:scsi_probe_bus+0x450
scsibus_discover_thread(1109b0580, 209c038, 209c030, 209c020, 1109e6530, 110ae23d0) at netbsd:scsibus_discover_thread+0x7clwp_trampoline(1000, 5a3d20200, 1106043d0, 1105e7680, 20000, 1105e7640) at netbsd:lwp_trampoline+0x8
That was while booting the install ISO with the USB-SSD attached.
After unplugging and installing 11.99.6 fully, and on a multiuser system, I tried
inserting the USB-SSD and got this:
[ 57150.4058078] umass0 at uhub2 port 1 configuration 1 interface 0
[ 57150.4773675] umass0: SABRENT (0x152d) SABRENT (0x1561), rev 2.10/2.04, addr 2
[ 57150.5659083] scsibus1 at umass0: 2 targets, 1 lun per target
[ 57150.6358132] sd2 at scsibus1 target 0 lun 0: <SABRENT, , 0204> disk fixedpanic: kernel diagnostic assertion "devhandle_type(devhandle) == DEVHANDLE_TYPE_OF" failed: file "/usr/current/src/sys/arch/sparc64/sparc64/autoconf.c", line 1240
[ 57150.8858165] cpu1: Begin traceback...
[ 57150.9258172] cpu1: End traceback...
[ 57150.9758182] Frame pointer is at 0x5dc8e2b41
[ 57151.0258190] Call traceback:
[ 57151.0658198] netbsd:cpu_reboot+0x254(20c6d20, 113229000, ff0f0000000001, 0, 2070400, 0) fp = 5dc8e2c21
[ 57151.1758218] netbsd:kern_reboot+0x60(104, 0, 20bec00, 0, 0, 113229000) fp = 5dc8e2cd1
[ 57151.2658234] netbsd:vpanic+0x188(104, 0, ff0f0000000001, 0, e0048000, 0) fp = 5dc8e2d81
[ 57151.3658253] netbsd:kern_assert+0x34(1ac0648, 5dc8e3778, 20c6b70, 104, 20c6c00, 20c5800) fp = 5dc8e2e31
[ 57151.4858275] netbsd:device_register+0x860(1ac0648, 1ac0638, 1ac5450, 1ac5418, 4d8, 1c08590) fp = 5dc8e2ef1
[ 57151.5958295] netbsd:config_attach_internal+0x1c8(110b5c800, 5dc8e3b00, 11322ab40, 0, 2060cf0, 1151b1240) fp = 5dc8e3081
[ 57151.7258319] netbsd:config_attach+0x38(1151b1240, 1, 5dc8e3b00, 0, 1ac5400, 20c5000) fp = 5dc8e3161
[ 57151.8458343] netbsd:scsi_probe_device+0x420(1151b1240, 206a018, 5dc8e3b00, 117ce80, 5dc8e3b70, 8) fp = 5dc8e3241
[ 57151.9658364] netbsd:scsi_probe_bus+0x450(1156b6ea0, 5dc8e3af8, 206a018, 115e739b0, 1, 2060cf0) fp = 5dc8e3401
[ 57152.0858385] netbsd:scsibus_discover_thread+0x7c(1156b6ea0, 1, 0, 112135220, 11519d290, 1159ed042) fp = 5dc8e3571
[ 57152.2158409] netbsd:lwp_trampoline+0x8(1156b6ea0, 113229000, 113229000, 5a2e38000, 115e739b0, 1200fd5d0) fp = 5dc8e3621
[ 57152.3458435] netbsd:1106515d0+0(1108dc180, 9c, 1106568c0, 20, 20000, 1105e7640) fp = 2069e98
[ 57152.4458454] dumping to dev 7,1 offset 95
15997 M [ 57162.5060308] cpu0[123 nd6_timer]: kernel lock spinout
...and it just hung and made no progress in writing out the dump.
>How-To-Repeat:
Connect USB storage to system running 11.99.6.
Note: this machine takes too much power, so I can't leave it plugged in,
and I won't be physically local to it for a while, so I won't be able to
test any fixes.
>Fix:
>Unformatted: