[ 388.0057975] panic: cpu1: softints stuck for 16 seconds
[ 388.0157707] fatal page fault in supervisor mode
[ 388.0157707] trap type 6 code 0x11 rip 0xffffffff844544d0 cs 0x8 rflags 0x10202 cr2 0xffffffff844544d0 ilevel 0x8 rsp 0xffffa6022f6eaa18
[ 388.0257694] curlwp 0xffffeed6c9fb5240 pid 0.26 lowest kstack 0xffffa6022f6e62c0
kernel: page fault trap, code=0
Stopped in pid 0.26 (system) at ffffffff844544d0:       loope   netbsd:__func__.3+-0x16877d
?
ipifunc() at ffffffff844544d0
address 0x100000012 is invalid
address 0x10000000a is invalid
[ 388.0357691] Skipping crash dump on recursive panic
[ 388.0357691] panic: UBSan: Undefined Behavior in /syzkaller/managers/ci2-netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:125:24, member access within misaligned address 0xffffffff80239e5b for type 'struct x86_64_frame' which requires 8 byte alignment

[ 388.0357691] cpu1: Begin traceback...
[ 388.0357691] vpanic() at netbsd:vpanic+0x2f0 sys/kern/subr_prf.c:292
[ 388.0357691] Report() at netbsd:Report+0x3b sys/../common/lib/libc/misc/ubsan.c:1352
[ 388.0357691] HandleTypeMismatch() at netbsd:HandleTypeMismatch+0xfc sys/../common/lib/libc/misc/ubsan.c:432
[ 388.0357691] db_nextframe() at netbsd:db_nextframe+0x790 sys/arch/amd64/amd64/db_machdep.c:125
[ 388.0357691] db_stack_trace_print() at netbsd:db_stack_trace_print+0x281 sys/arch/x86/x86/db_trace.c:278
[ 388.0357691] db_command() at netbsd:db_command+0x240 sys/ddb/db_command.c:966
[ 388.0357691] db_command_loop() at netbsd:db_command_loop+0x221 db_execute_commandlist sys/ddb/db_command.c:462 [inline]
[ 388.0357691] db_command_loop() at netbsd:db_command_loop+0x221 sys/ddb/db_command.c:612
[ 388.0357691] db_trap() at netbsd:db_trap+0x261 sys/ddb/db_trap.c:94
[ 388.0357691] kdb_trap() at netbsd:kdb_trap+0x1aa sys/arch/amd64/amd64/db_interface.c:252
[ 388.0357691] trap() at netbsd:trap+0x5b2 sys/arch/amd64/amd64/trap.c:315
[ 388.0357691] --- trap (number 6) ---
[ 388.0357691] netbsd:ipifunc+0x10:
[ 388.0357691] cpu1: End traceback...
[ 388.0357691] fatal breakpoint trap in supervisor mode
[ 388.0357691] trap type 1 code 0 rip 0xffffffff80235485 cs 0x8 rflags 0x202 cr2 0xffffffff844544d0 ilevel 0x8 rsp 0xffffa6022f6e96f0
[ 388.0357691] curlwp 0xffffeed6c9fb5240 pid 0.26 lowest kstack 0xffffa6022f6e62c0
Stopped in pid 0.26 (system) at netbsd:breakpoint+0x5:  leave