kernel: protection fault trap, code=0 Stopped at ktrops+0x4f: movq 0x8(%r14),%r14 ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace ktrops(ffff80002a22fc50,deaf4152deaf4152,0,80000d30,fffffd806441e558,fffffd807f7d36e8) at ktrops+0x4f ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a22fc50,deaf4152deaf4152,0,80000d30,fffffd806441e558,fffffd807f7d36e8) at ktrops+0x4f sys/kern/kern_ktrace.c:561 doktrace(fffffd806441e558,4,d30,0,ffff80002a22fc50) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806441e558,4,d30,0,ffff80002a22fc50) at doktrace+0x514 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a22fc50,ffff80002b30ed00,ffff80002b30ec50) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002b30ed00) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002b30ed00) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa14320cb4e0, count: -5 ddb{0}> show registers rdi 0xffff80003b385000 rsi 0x20f3 __ALIGN_SIZE+0x10f3 rbp 0xffff80002b30ea20 rbx 0xfffffd807f7d36e8 rdx 0xffff80003b385000 rcx 0x20f2 __ALIGN_SIZE+0x10f2 rax 0xffffffff8114f3a3 ktrops+0x43 r8 0xfffffd806441e558 r9 0xfffffd807f7d36e8 r10 0x991a5d244bc19c58 r11 0xce5cfb3d0edc9fc r12 0xffff80002a22fc50 r13 0xdeaf4152deaf4152 r14 0xdeaf4152deaf4152 r15 0x80000d30 __kernel_virt_to_phys+0xd30 rip 0xffffffff8114f3af ktrops+0x4f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002b30e9a0 ss 0 ktrops+0x4f: movq 0x8(%r14),%r14 ddb{0}> show proc PROC (syz-executor.1) tid=434221 pid=6999 tcnt=2 stat=onproc flags process=8000000 proc=4000000 runpri=17, usrpri=84, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a22e540,0xffff80002a22ed00 process=0xffff80002d131680 user=0xffff80002b309000, vmspace=0xfffffd8072d2d6f0 estcpu=34, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 77227 359389 83724 60929 2 0x8000010 syz-executor.0 77227 523708 83724 60929 3 0xc000090 fsleep syz-executor.0 46694 85268 6639 0 2 0x8000000 syz-executor.4 46694 361493 6639 0 2 0xc000000 syz-executor.4 6999 478307 32072 0 2 0x8000000 syz-executor.1 * 6999 434221 32072 0 7 0xc000000 syz-executor.1 36824 23416 91630 60928 3 0x8000090 nanoslp syz-executor.6 36824 305435 91630 60928 3 0xc000090 kqsel syz-executor.6 36824 269912 91630 60928 3 0xc000090 fsleep syz-executor.6 20462 57025 27479 0 3 0x8000080 nanoslp syz-executor.3 20462 470191 27479 0 3 0xc000080 kqsel syz-executor.3 20462 27840 27479 0 3 0xc000080 fsleep syz-executor.3 32072 215104 31455 0 3 0x8000082 nanoslp syz-executor.1 91630 197319 31455 0 3 0x8000082 nanoslp syz-executor.6 31549 34170 31455 0 3 0x8000082 nanoslp syz-executor.7 83724 89621 31455 0 3 0x8000082 nanoslp syz-executor.0 54617 275087 31455 0 2 0x8000002 syz-executor.2 6639 375949 31455 0 3 0x8000082 nanoslp syz-executor.4 35067 84048 0 0 3 0x14280 nfsidl nfsio 31810 136128 0 0 3 0x14280 nfsidl nfsio 14820 37322 0 0 3 0x14280 nfsidl nfsio 91346 305878 0 0 3 0x14280 nfsidl nfsio 97844 303378 0 0 3 0x14280 nfsidl nfsio 12540 190980 0 0 3 0x14280 nfsidl nfsio 93032 223135 0 0 3 0x14280 nfsidl nfsio 53267 522808 0 0 3 0x14280 nfsidl nfsio 28965 238298 0 0 3 0x14280 nfsidl nfsio 96954 236902 0 0 3 0x14280 nfsidl nfsio 10375 150556 0 0 3 0x14280 nfsidl nfsio 48642 53820 0 0 3 0x14280 nfsidl nfsio 19737 233403 0 0 3 0x14280 nfsidl nfsio 89038 381103 0 0 3 0x14280 nfsidl nfsio 4986 42343 0 0 3 0x14280 nfsidl nfsio 42564 50007 0 0 3 0x14280 nfsidl nfsio 27829 510173 0 0 3 0x14280 nfsidl nfsio 83358 421804 0 0 3 0x14280 nfsidl nfsio 72321 85075 0 0 3 0x14280 nfsidl nfsio 8381 172484 0 0 3 0x14280 nfsidl nfsio 27479 190863 31455 0 3 0x8000082 nanoslp syz-executor.3 56998 132759 0 0 3 0x14200 bored sosplice 28811 409827 31455 0 3 0x8000082 nanoslp syz-executor.5 31455 387433 78306 0 3 0x1a000082 wait syz-fuzzer 31455 353588 78306 0 3 0x1e000082 nanoslp syz-fuzzer 31455 190903 78306 0 3 0x1e000082 kqread syz-fuzzer 31455 412947 78306 0 3 0x1e000082 thrsleep syz-fuzzer 31455 487786 78306 0 3 0x1e000082 thrsleep syz-fuzzer 31455 262594 78306 0 3 0x1e000082 thrsleep syz-fuzzer 31455 149258 78306 0 3 0x1e000082 wait syz-fuzzer 31455 299852 78306 0 3 0x1e000082 wait syz-fuzzer 31455 175095 78306 0 3 0x1e000082 wait syz-fuzzer 31455 157601 78306 0 3 0x1e000082 thrsleep syz-fuzzer 31455 468860 78306 0 3 0x1e000082 thrsleep syz-fuzzer 31455 447847 78306 0 3 0x1e000082 wait syz-fuzzer 31455 322631 78306 0 3 0x1e000082 thrsleep syz-fuzzer 31455 167065 78306 0 3 0x1e000082 wait syz-fuzzer 31455 416267 78306 0 3 0x1e000082 wait syz-fuzzer 31455 10775 78306 0 3 0x1e000082 thrsleep syz-fuzzer 31455 405910 78306 0 3 0x1e000082 wait syz-fuzzer 78306 501021 45881 0 3 0x810008a sigsusp ksh 45881 298173 47866 0 3 0x1800009a kqread sshd 91409 87117 1 0 3 0x18100083 ttyin getty 47866 323043 1 0 3 0x18000088 kqread sshd 28984 106602 83912 73 3 0x19100090 kqread syslogd 83912 101245 1 0 3 0x18100082 sbwait syslogd 60806 431054 1 0 3 0x18100080 kqread resolvd 24140 490683 7389 77 3 0x18100092 kqread dhcpleased 70959 29132 7389 77 3 0x18100092 kqread dhcpleased 7389 80054 1 0 3 0x18000080 kqread dhcpleased 77856 309683 0 0 3 0x14200 bored smr 68586 153215 0 0 2 0x14200 zerothread 84168 76254 0 0 3 0x14200 aiodoned aiodoned 49096 336754 0 0 3 0x14200 syncer update 8778 175813 0 0 3 0x14200 cleaner cleaner 71121 466264 0 0 3 0x14200 reaper reaper 42977 113422 0 0 3 0x14200 pgdaemon pagedaemon 95243 261705 0 0 3 0x14200 bored viomb 86054 160515 0 0 3 0x40014200 acpi0 acpi0 63625 296591 0 0 7 0x40014200 idle1 67457 17226 0 0 3 0x14200 bored softnet3 65087 395709 0 0 3 0x14200 bored softnet2 47351 223522 0 0 3 0x14200 bored softnet1 84684 418872 0 0 3 0x14200 bored softnet0 84345 227087 0 0 3 0x14200 bored systqmp 9144 72271 0 0 3 0x14200 bored systq 46731 127808 0 0 3 0x14200 tmoslp softclockmp 47458 366346 0 0 3 0x40014200 tmoslp softclock 57272 252496 0 0 3 0x40014200 idle0 1 56799 0 0 3 0x8080082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 6999 (syz-executor.1) thread 0xffff80002a22fc50 (434221) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d755c0) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x491 sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19a sys/kern/kern_synch.c:417 #4 biowait+0x91 sys/kern/vfs_bio.c:1254 #5 bwrite+0x1fe sys/kern/vfs_bio.c:766 #6 ffs_update+0x27f sys/ufs/ffs/ffs_inode.c:111 #7 ffs_truncate+0x987 #8 ufs_inactive+0x16a sys/ufs/ufs/ufs_inode.c:84 #9 VOP_INACTIVE+0xc4 sys/kern/vfs_vops.c:495 #10 vrele+0xd5 sys/kern/vfs_subr.c:827 #11 ktrsettrace+0xb6 sys/kern/kern_ktrace.c:122 #12 ktrops+0x1ae sys/kern/kern_ktrace.c:564 #13 doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] #13 doktrace+0x514 sys/kern/kern_ktrace.c:508 #14 sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 #15 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #15 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #16 Xsyscall+0x128 Process 54617 (syz-executor.2) thread 0xffff80002a22f730 (275087) exclusive rrwlock inode r = 0 (0xfffffd806e7c0d58) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x46 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x1e4 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xe6 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:394 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3104 #10 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #10 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806b917e78) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1157 #1 rw_enter+0x32d sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x91 sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:524 #4 vn_lock+0x85 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd3 sys/kern/vfs_lookup.c:418 #6 namei+0x56a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3089 #8 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #8 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10190 6422K 6943K 166960K 13212 0 pcb 18 12K 12K 166960K 204 0 rtable 215 14K 15K 166960K 997 0 pf 31 9K 10K 166960K 99 0 ifaddr 42 15K 16K 166960K 134 0 ifgroup 54 2K 2K 166960K 151 0 sysctl 3 0K 0K 166960K 4 0 counters 66 36K 37K 166960K 122 0 ioctlops 0 0K 4K 166960K 1541 0 iov 0 0K 14K 166960K 54 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1413 89K 89K 166960K 2421 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 10K 14K 166960K 33 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 97 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 17 61K 97K 166960K 1254 0 sigio 0 0K 0K 166960K 13 0 proc 58 79K 152K 166960K 1042 0 subproc 104 6K 9K 166960K 325 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 124 0 in_multi 87 6K 7K 166960K 330 0 ether_multi 1 0K 0K 166960K 11 0 mrt 0 0K 0K 166960K 8 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 698 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 302 81K 114K 166960K 12764 0 UVM aobj 27 4K 4K 166960K 30 0 pinsyscall 37 74K 100K 166960K 2846 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 66 0 NDP 12 0K 2K 166960K 90 0 temp 75 6808K 6872K 166960K 46751 0 kqueue 13 18K 28K 166960K 183 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 152 0 149 1 0 1 1 0 8 0 rtentry 112 335 0 239 4 0 4 4 0 8 0 unpcb 144 903 0 889 2 1 1 2 0 8 0 syncache 336 7 0 7 3 3 0 1 0 8 0 tcpqe 32 32 0 32 1 1 0 1 0 8 0 tcpcb 808 283 0 277 3 1 2 2 0 8 1 arp 120 62 0 45 1 0 1 1 0 8 0 inpcb 384 1162 0 1148 6 3 3 3 0 8 1 nd6 136 85 0 59 2 0 2 2 0 8 0 pkpcb 40 3 0 3 2 2 0 1 0 8 0 kcovpl 48 25 0 17 1 0 1 1 0 8 0 ppxss 1168 8 0 8 3 2 1 1 0 8 1 pffrag 232 9 0 1 1 0 1 1 0 482 0 pffrnode 88 8 0 1 1 0 1 1 0 8 0 pffrent 40 12 0 4 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 101 0 46 1 0 1 1 0 8 0 pfstkey 128 101 0 46 2 0 2 2 0 8 0 pfstate 376 101 0 46 6 0 6 6 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1258 0 869 35 7 28 30 0 8 0 art_table 32 1259 0 869 4 0 4 4 0 8 0 art_node 16 334 0 254 1 0 1 1 0 8 0 sysvmsgpl 40 18 0 11 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 91 0 81 1 0 1 1 0 8 0 shmpl 112 27 0 3 1 0 1 1 0 8 0 dirhash 1024 31 0 14 3 0 3 3 0 8 0 dino2pl 256 3260 0 1744 96 0 96 96 0 8 0 ffsino 272 3260 0 1744 102 0 102 102 0 8 0 nchpl 144 5062 0 3313 67 0 67 67 0 8 0 uvmvnodes 80 4155 0 0 85 0 85 85 0 8 0 vnodes 216 4155 0 0 231 0 231 231 0 8 0 namei 1024 19161 0 19160 5 4 1 2 0 8 0 percpumem 16 75 0 28 1 0 1 1 0 8 0 vcpupl 3904 3 0 0 1 0 1 1 0 8 0 vmpool 696 10 0 7 1 0 1 1 0 8 0 kstatmem 264 80 0 56 2 0 2 2 0 8 0 scsiplug 72 3 0 3 2 1 1 1 0 8 1 scxspl 216 21214 0 21214 14 13 1 8 1 8 1 plimitpl 152 207 0 191 1 0 1 1 0 8 0 sigapl 424 1548 0 1481 9 0 9 9 0 8 0 futexpl 64 18719 0 18716 2 1 1 1 0 8 0 knotepl 120 637 0 0 19 0 19 19 0 8 0 kqueuepl 216 336 0 325 1 0 1 1 0 8 0 pipepl 320 319 0 289 3 0 3 3 0 8 0 fdescpl 496 1507 0 1479 8 3 5 5 0 8 0 filepl 152 9130 0 8869 13 1 12 12 0 8 0 lockfpl 104 390 0 388 1 0 1 1 0 8 0 lockfspl 48 172 0 170 1 0 1 1 0 8 0 sessionpl 144 40 0 24 1 0 1 1 0 8 0 pgrppl 48 51 0 35 1 0 1 1 0 8 0 ucredpl 104 1346 0 1331 1 0 1 1 0 8 0 zombiepl 144 1483 0 1481 1 0 1 1 0 8 0 processpl 1144 1548 0 1481 6 0 6 6 0 8 0 procpl 656 2687 0 2597 9 0 9 9 0 8 0 srpgc 96 8 0 8 2 1 1 1 0 8 1 sosppl 168 6 0 6 3 2 1 1 0 8 1 sockpl 664 2227 0 2196 9 5 4 4 0 8 1 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 8 0 0 1 0 1 1 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 10 0 0 2 0 2 2 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 319 0 0 40 0 40 40 0 8 0 mtagpl 96 33 0 0 1 0 1 1 0 8 0 mbufpl 256 345 0 0 22 0 22 22 0 8 0 bufpl 280 8186 0 1931 447 0 447 447 0 8 0 anonpl 24 294386 0 288024 115 53 62 92 0 186 15 amapchunkpl 152 41132 0 40413 61 30 31 48 0 158 1 amappl16 200 6579 0 6444 20 3 17 20 0 8 6 amappl15 192 11 0 11 2 1 1 1 0 8 1 amappl14 184 204 0 190 2 1 1 2 0 8 0 amappl13 176 15 0 15 1 1 0 1 0 8 0 amappl12 168 2400 0 2370 2 0 2 2 0 8 0 amappl11 160 79 0 61 1 0 1 1 0 8 0 amappl10 152 86 0 80 1 0 1 1 0 8 0 amappl9 144 170 0 170 2 2 0 1 0 8 0 amappl8 136 248 0 212 2 0 2 2 0 8 0 amappl7 128 132 0 115 1 0 1 1 0 8 0 amappl6 120 515 0 503 2 1 1 2 0 8 0 amappl5 112 236 0 224 1 0 1 1 0 8 0 amappl4 104 692 0 656 3 1 2 3 0 8 0 amappl3 96 8241 0 8154 3 0 3 3 0 8 0 amappl2 88 1963 0 1890 4 2 2 4 0 8 0 amappl1 80 14118 0 13622 23 10 13 22 0 8 0 amappl 88 12013 0 11805 6 0 6 6 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 29 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1517 0 1486 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1517 0 1486 1 0 1 1 0 8 0 vmmpekpl 168 15045 0 14977 4 0 4 4 0 8 0 vmmpepl 168 114097 0 112162 140 41 99 115 0 357 7 vmsppl 440 1516 0 1486 7 2 5 5 0 8 0 rwobjpl 56 36791 0 31501 82 7 75 75 0 8 0 pdppl 4096 3041 0 2975 156 88 68 82 0 8 2 pvpl 32 49294 0 0 398 0 398 398 0 265 0 pmappl 248 1516 0 1486 5 2 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 477 0 107 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ktrops(ffff80002a22fc50,deaf4152deaf4152,0,80000d30,fffffd806441e558,fffffd807f7d36e8) at ktrops+0x4f ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a22fc50,deaf4152deaf4152,0,80000d30,fffffd806441e558,fffffd807f7d36e8) at ktrops+0x4f sys/kern/kern_ktrace.c:561 doktrace(fffffd806441e558,4,d30,0,ffff80002a22fc50) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806441e558,4,d30,0,ffff80002a22fc50) at doktrace+0x514 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a22fc50,ffff80002b30ed00,ffff80002b30ec50) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002b30ed00) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002b30ed00) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa14320cb4e0, count: -5 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x2f1 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800029cebff0) at sched_idle+0x41d sys/kern/kern_sched.c:183 end trace frame: 0x0, count: -5