[  24.9971613] usb0 at vhci0panic: cpu0: softints stuck for 16 seconds
[  25.0074190] cpu1: found cpu0 heart stopped beating after 16 seconds
[  25.0074190] cpu0: Begin traceback...
[  25.0074190] : USB revision 2.0
[  25.0074190] uhub0 at usb0: NetBSD (0x0000) VHCI root hub (0x0000), class 9/0, rev 2.00/1.00, addr 1
[  25.0074190] vpanic() at netbsd:vpanic+0xc9d
[  25.0074190] panic() at netbsd:panic+0x1b3
[  25.0074190] heartbeat() at netbsd:heartbeat+0xff3 select_patient sys/kern/kern_heartbeat.c:556 [inline]
[  25.0074190] heartbeat() at netbsd:heartbeat+0xff3 sys/kern/kern_heartbeat.c:706
[  25.0074190] hardclock() at netbsd:hardclock+0x5e5 sys/kern/kern_clock.c:347
[  25.0074190] Xresume_lapic_ltimer() at netbsd:Xresume_lapic_ltimer+0x1e
[  25.0074190] --- interrupt ---
[  25.0074190] _kernel_lock() at netbsd:_kernel_lock+0xad4 __SIMPLELOCK_LOCKED_P sys/arch/amd64/compile/obj/GENERIC_SYZKALLER/./x86/lock.h:44 [inline]
[  25.0074190] _kernel_lock() at netbsd:_kernel_lock+0xad4 sys/kern/kern_lock.c:268
[  25.0074190] if_slowtimo_intr() at netbsd:if_slowtimo_intr+0x1f1 sys/net/if.c:2655
[  25.0074190] callout_softclock() at netbsd:callout_softclock+0xf84 sys/kern/kern_timeout.c:873
[  25.0074190] usb1 at vhci1: USB revision 2.0
[  25.0074190] uhub1 at usb1: NetBSD (0x0000) VHCI root hub (0x0000), class 9/0, rev 2.00/1.00, addr 1
[  25.0074190] softint_dispatch([  25.0074190] ) at netbsd:softint_dispatch+0x811 softint_execute sys/kern/kern_softint.c:605 [inline]
[  25.0074190] softint_dispatch([  25.0074190] ) at netbsd:softint_dispatch+0x811 sys/kern/kern_softint.c:848
address 0xffffe480af1620b8 is invalid
address 0xffffe480af1620b0 is invalid
address 0xffffe480af1620c0 is invalid
address 0xffffe480af1620b8 is invalid
address 0xffffe480af1620c8 is invalid
address 0xffffe480af1620c0 is invalid
address 0xffffe480af1620d0 is invalid
address 0xffffe480af1620c8 is invalid
[  25.0074190] DDB lost frame for netbsd:Xsoftintr+0x57, trying 0xffffe480af161ff0
[  25.0074190] Xsoftintr() at netbsd:Xsoftintr+0x57
[  25.0074190] --- interrupt ---
address 0xffffe480af1620c8 is invalid
address 0xffffe480af162080 is invalid
[  25.0074190] 68d534085463ba3:
[  25.0074190] cpu0: End traceback...
[  25.0074190] fatal breakpoint trap in supervisor mode
[  25.0074190] trap type 1 code 0 rip 0xffffffff8023687d cs 0x8 rflags 0x292 cr2 0 ilevel 0x7 rsp 0xffffe480af161808
[  25.0074190] curlwp 0xffffe4800ebc9080 pid 0.5 lowest kstack 0xffffe480af15a2c0
Stopped in pid 0.5 (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 ---
_kernel_lock() at netbsd:_kernel_lock+0xad4 __SIMPLELOCK_LOCKED_P sys/arch/amd64/compile/obj/GENERIC_SYZKALLER/./x86/lock.h:44 [inline]
_kernel_lock() at netbsd:_kernel_lock+0xad4 sys/kern/kern_lock.c:268
if_slowtimo_intr() at netbsd:if_slowtimo_intr+0x1f1 sys/net/if.c:2655
callout_softclock() at netbsd:callout_softclock+0xf84 sys/kern/kern_timeout.c:873
softint_dispatch() at netbsd:softint_dispatch+0x811 softint_execute sys/kern/kern_softint.c:605 [inline]
softint_dispatch() at netbsd:softint_dispatch+0x811 sys/kern/kern_softint.c:848
address 0xffffe480af1620b8 is invalid
--db_more--