[  40.0097630] panic: cpu1: softints stuck for 16 seconds
[  40.0097630] cpu1: Begin traceback...
[  40.9494268] usb1 at vhci1vpanic() at : USB revision 2.0
[  41.1192821] uhub1 at usb1: NetBSD (0x0000) VHCI root hub (0x0000), class 9/0, rev 2.00/1.00, addr 1
[  41.3468955] netbsd:vpanic[  41.3492847] +0xc9d
[  42.6391497] panic() at netbsd:panic+0x1b3
[  44.0889997] heartbeat() at netbsd:heartbeat+0xff3 select_patient sys/kern/kern_heartbeat.c:556 [inline]
[  44.0889997] heartbeat() at netbsd:heartbeat+0xff3 sys/kern/kern_heartbeat.c:706
[  45.5588473] hardclock() at netbsd:hardclock+0x5e5 sys/kern/kern_clock.c:347
[  47.0587120] Xresume_lapic_ltimer() at netbsd:Xresume_lapic_ltimer+0x1e
[  47.4386825] --- interrupt ---
[  48.8310679] trace_cmp() at netbsd:trace_cmp+0x22 sys/kern/subr_kcov.c:631
[  50.3798773] _kernel_lock() at netbsd:_kernel_lock+0x8ab sys/kern/kern_lock.c:270
[  51.8782583] frag6_fasttimo() at netbsd:frag6_fasttimo+0x56 sys/netinet6/frag6.c:662
[  53.2981975] usb2 at vhci2pffasttimo(: USB revision 2.0) at 
[  53.4681376] uhub2 at usb2: NetBSD (0x0000) VHCI root hub (0x0000), class 9/0, rev 2.00/1.00, addr 1
[  53.5285600] netbsd:pffasttimo[  53.6983158] +0x135
[  55.0380414] callout_softclock() at netbsd:callout_softclock+0xf84 sys/kern/kern_timeout.c:873
[  56.6378176] softint_dispatch() at netbsd:softint_dispatch+0x811 softint_execute sys/kern/kern_softint.c:605 [inline]
[  56.6378176] softint_dispatch() at netbsd:softint_dispatch+0x811 sys/kern/kern_softint.c:848
address 0xffff9400af24b0b8 is invalid
address 0xffff9400af24b0b0 is invalid
address 0xffff9400af24b0c0 is invalid
address 0xffff9400af24b0b8 is invalid
address 0xffff9400af24b0c8 is invalid
address 0xffff9400af24b0c0 is invalid
address 0xffff9400af24b0d0 is invalid
address 0xffff9400af24b0c8 is invalid
[  58.2977480] DDB lost frame for netbsd:Xsoftintr+0x57, trying 0xffff9400af24aff0
[  59.3375587] Xsoftintr() at netbsd:Xsoftintr+0x57
[  59.7075223] --- interrupt ---
address 0xffff9400af24b0c8 is invalid
address 0xffff9400af24b080 is invalid
[  59.9475775] 68d534085463ba3:
[  60.0374818] cpu1: End traceback...
[  60.1174799] fatal breakpoint trap in supervisor mode
[  60.2489682] trap type 1 code 0 rip 0xffffffff8023687d cs 0x8 rflags 0x296 cr2 0 ilevel 0x7 rsp 0xffff9400af24a768
[  60.5074469] curlwp 0xffff9400103ba240 pid 0.26 lowest kstack 0xffff9400af2432c0
Stopped in pid 0.26 (system) at netbsd:breakpoint+0x5:  leave
breakpoint() at netbsd:breakpoint+0x5
vpanic() at netbsd:vpanic+0xc9d
panic() at netbsd:panic+0x1b3
heartbeat() at netbsd:heartbeat+0xff3 select_patient sys/kern/kern_heartbeat.c:556 [inline]
heartbeat() at netbsd:heartbeat+0xff3 sys/kern/kern_heartbeat.c:706
hardclock() at netbsd:hardclock+0x5e5 sys/kern/kern_clock.c:347
Xresume_lapic_ltimer() at netbsd:Xresume_lapic_ltimer+0x1e
--- interrupt ---
trace_cmp() at netbsd:trace_cmp+0x22 sys/kern/subr_kcov.c:631
_kernel_lock() at netbsd:_kernel_lock+0x8ab sys/kern/kern_lock.c:270
frag6_fasttimo() at netbsd:frag6_fasttimo+0x56 sys/netinet6/frag6.c:662
pffasttimo() at netbsd:pffasttimo+0x135 sys/kern/uipc_domain.c:770
callout_softclock() at netbsd:callout_softclock+0xf84 sys/kern/kern_timeout.c:873
--db_more--