kernel: protection fault trap, code=0 Stopped at sys_semop+0x3d5: movzwl 0(%rax),%r15d ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace sys_semop(ffff800033820a98,ffff80003c523220,ffff80003c523170) at sys_semop+0x3d5 sys/kern/sysv_sem.c:617 syscall(ffff80003c523220) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c523220) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7562cf8b140, count: -3 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003c523140 rbx 0xdeaf4152deaf4152 rdx 0 rcx 0xffff800033820a98 rax 0xdeaf4152deaf4152 r8 0x7f7fffffc000 r9 0 r10 0xc06ad5244f24efb2 r11 0xe4c224ec7083e011 r12 0 r13 0xfffffd8069a3bd20 r14 0xffff80003c523220 r15 0 rip 0xffffffff81e6fcc5 sys_semop+0x3d5 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c523050 ss 0x10 sys_semop+0x3d5: movzwl 0(%rax),%r15d ddb{0}> show proc PROC (syz-executor) tid=167322 pid=76878 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=86, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800031009248,0xffff800033820fd8 process=0xffff80002a2bc030 user=0xffff80003c51e000, vmspace=0xfffffd806b9dc200 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 62469 415137 80770 0 2 0 syz-executor 62469 147874 80770 0 3 0x4000080 fsleep syz-executor 62469 105374 80770 0 3 0x4000080 fsleep syz-executor 62469 189889 80770 0 3 0x4000080 fsleep syz-executor 76878 456912 51134 0 2 0 syz-executor *76878 167322 51134 0 7 0x4000000 syz-executor 76878 314732 51134 0 3 0x4000080 fsleep syz-executor 76878 22022 51134 0 3 0x4000080 fsleep syz-executor 74784 254953 40666 0 2 0x1 syz-executor 74784 262465 40666 0 3 0x4000080 fsleep syz-executor 74784 453740 40666 0 3 0x4000080 fsleep syz-executor 30279 511719 82180 0 3 0x80 nanoslp syz-executor 30279 256375 82180 0 3 0x4000080 kqpoll syz-executor 30279 345743 82180 0 3 0x4000080 kqpoll syz-executor 30279 443668 82180 0 3 0x4000080 fsleep syz-executor 33305 221821 74317 0 2 0 syz-executor 33305 109673 74317 0 3 0x4000080 fsleep syz-executor 33305 399312 74317 0 3 0x4000080 fsleep syz-executor 33305 452837 74317 0 3 0x4000080 fsleep syz-executor 33305 388927 74317 0 3 0x4000080 fsleep syz-executor 33305 443574 74317 0 3 0x4000080 fsleep syz-executor 80770 15108 58281 0 3 0x82 nanoslp syz-executor 86144 440597 58281 0 2 0x2 syz-executor 42981 36985 1 0 3 0x100083 ttyin getty 36488 285853 0 0 3 0x14200 acct acct 82180 318674 58281 0 3 0x82 nanoslp syz-executor 44828 157566 0 0 3 0x14280 nfsidl nfsio 46473 91317 0 0 3 0x14280 nfsidl nfsio 68350 198012 0 0 3 0x14280 nfsidl nfsio 46667 447009 0 0 3 0x14280 nfsidl nfsio 84397 459597 0 0 3 0x14280 nfsidl nfsio 79865 98874 0 0 3 0x14280 nfsidl nfsio 12001 29285 0 0 3 0x14280 nfsidl nfsio 44806 252420 0 0 3 0x14280 nfsidl nfsio 95188 146959 0 0 3 0x14280 nfsidl nfsio 43538 483104 0 0 3 0x14280 nfsidl nfsio 36565 305607 0 0 3 0x14280 nfsidl nfsio 83406 474454 0 0 3 0x14280 nfsidl nfsio 50792 440017 0 0 3 0x14280 nfsidl nfsio 44355 28093 0 0 3 0x14280 nfsidl nfsio 68464 342586 0 0 3 0x14280 nfsidl nfsio 26875 499479 0 0 3 0x14280 nfsidl nfsio 41165 520403 0 0 3 0x14280 nfsidl nfsio 35734 199640 0 0 3 0x14280 nfsidl nfsio 97551 160149 0 0 3 0x14280 nfsidl nfsio 18717 37034 0 0 3 0x14280 nfsidl nfsio 23217 60121 0 0 3 0x14200 bored sosplice 40666 474526 58281 0 3 0x82 nanoslp syz-executor 51134 256652 58281 0 3 0x82 nanoslp syz-executor 74317 58692 58281 0 3 0x82 nanoslp syz-executor 46029 458775 58281 0 3 0x82 nanoslp syz-executor 7526 181167 58281 0 2 0x2 syz-executor 58281 339237 72451 0 3 0x82 kqread syz-executor 72451 401283 27683 0 3 0x10008a sigsusp ksh 27683 5638 38502 0 3 0x98 kqread sshd-session 38502 228195 2402 0 3 0x92 kqread sshd-session 2402 323376 1 0 3 0x88 kqread sshd 98089 232423 92730 74 3 0x1100092 bpf pflogd 92730 328565 1 0 3 0x80 sbwait pflogd 67668 207966 66044 73 3 0x1100090 kqread syslogd 66044 470048 1 0 3 0x100082 sbwait syslogd 42286 374 1 0 3 0x100080 kqread resolvd 98023 29134 58620 77 3 0x100092 kqread dhcpleased 49016 456687 58620 77 3 0x100092 kqread dhcpleased 58620 159244 1 0 3 0x80 kqread dhcpleased 4643 403414 0 0 3 0x14200 bored smr 50231 25772 0 0 2 0x14200 zerothread 86263 420564 0 0 3 0x14200 aiodoned aiodoned 67093 220785 0 0 3 0x14200 syncer update 82152 398527 0 0 3 0x14200 cleaner cleaner 61867 216961 0 0 3 0x14200 reaper reaper 50082 420746 0 0 3 0x14200 pgdaemon pagedaemon 9908 139208 0 0 3 0x14200 bored viomb 78324 206133 0 0 3 0x40014200 acpi0 acpi0 72785 42164 0 0 7 0x40014200 idle1 88668 36821 0 0 3 0x14200 bored softnet7 26552 242311 0 0 3 0x14200 bored softnet6 36417 523093 0 0 3 0x14200 bored softnet5 54441 414717 0 0 3 0x14200 bored softnet4 93047 418961 0 0 3 0x14200 bored softnet3 49047 419690 0 0 3 0x14200 bored softnet2 43673 169378 0 0 3 0x14200 bored softnet1 70176 4128 0 0 3 0x14200 bored softnet0 84684 126614 0 0 3 0x14200 bored systqmp 52388 305647 0 0 3 0x14200 bored systq 74363 340446 0 0 3 0x14200 tmoslp softclockmp 39846 205045 0 0 2 0x40014200 softclock 32921 283521 0 0 3 0x40014200 idle0 1 228857 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 76878 (syz-executor) thread 0xffff800033820a98 (167322) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839ca180) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 malloc+0xe3 sys/kern/kern_malloc.c:174 #3 sys_semop+0x22f sys/kern/sysv_sem.c:-1 #4 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #5 Xsyscall+0x128 Process 86144 (syz-executor) thread 0xffff800031008020 (440597) exclusive rrwlock inode r = 0 (0xfffffd806aff38f8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:693 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807dec9b40) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 7526 (syz-executor) thread 0xffff80002a2b9a08 (181167) exclusive rrwlock inode r = 0 (0xfffffd806f713b20) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806cf51d88) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10245 11062K 11286K 166960K 12103 0 pcb 17 13K 14K 166960K 276 0 rtable 230 11K 11K 166960K 453 0 pf 45 19K 22K 166960K 157 0 ifaddr 45 8K 8K 166960K 106 0 ifgroup 64 2K 2K 166960K 167 0 sysctl 4 1K 9K 166960K 15 0 counters 74 37K 37K 166960K 320 0 ioctlops 0 0K 4K 166960K 1769 0 iov 0 0K 16K 166960K 109 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1405 88K 89K 166960K 2107 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 19 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 71 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 236K 166960K 1193 0 sigio 0 0K 0K 166960K 21 0 proc 73 115K 164K 166960K 737 0 subproc 72 4K 4K 166960K 99 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 198 0 in_multi 97 7K 7K 166960K 191 0 ether_multi 1 0K 0K 166960K 14 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 217 970K 970K 166960K 217 0 exec 0 0K 1K 166960K 569 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 255 182K 190K 166960K 12360 0 UVM aobj 96 3K 3K 166960K 102 0 pinsyscall 41 82K 101K 166960K 2389 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 73 0 NDP 14 0K 2K 166960K 74 0 temp 76 8651K 8716K 166960K 65134 0 kqueue 14 22K 31K 166960K 235 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 171 0 168 2 1 1 2 0 8 0 rtentry 176 153 0 62 5 0 5 5 0 8 0 unpcb 144 1062 0 1043 13 11 2 6 0 8 0 syncache 336 15 0 15 2 2 0 1 0 8 0 tcpqe 32 6 0 6 3 3 0 1 0 8 0 tcpcb 736 409 0 399 13 11 2 7 0 8 0 arp 128 15 0 5 1 0 1 1 0 8 0 inpcb 328 1325 0 1307 17 15 2 12 0 8 0 nd6 144 29 0 9 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 1 0 1 0 8 0 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1192 113 0 112 3 2 1 1 0 8 0 pppxif 1504 67 0 66 2 1 1 1 0 8 0 pfstscr 40 2 0 0 1 0 1 1 0 8 0 pffrag 232 10 0 2 1 0 1 1 0 482 0 pffrnode 88 9 0 2 1 0 1 1 0 8 0 pffrent 40 14 0 6 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 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 2 0 1 1 0 1 1 0 8 0 pfstitem 24 73 0 23 1 0 1 1 0 8 0 pfstkey 128 73 0 24 2 0 2 2 0 8 0 pfstate 384 71 0 23 6 0 6 6 0 8 0 pfrule 1344 25 0 18 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 828 0 396 31 0 31 31 0 8 0 art_table 40 831 0 396 5 0 5 5 0 8 0 art_node 32 153 0 75 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 66 0 57 1 0 1 1 0 8 0 shmpl 112 99 0 6 3 0 3 3 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 3503 0 1982 96 0 96 96 0 8 0 ffsino 296 3503 0 1982 118 0 118 118 0 8 0 nchpl 144 5137 0 3432 65 1 64 64 0 8 0 rtmask 32 12 0 12 2 2 0 1 0 8 0 uvmvnodes 80 3951 0 0 81 0 81 81 0 8 0 vnodes 216 3951 0 0 220 0 220 220 0 8 0 namei 1024 18734 0 18733 3 2 1 2 0 8 0 percpumem 16 175 0 123 1 0 1 1 0 8 0 kstatmem 264 108 0 76 5 2 3 3 0 8 0 scsiplug 72 4 0 4 2 2 0 1 0 8 0 scxspl 216 33331 0 33331 11 10 1 8 1 8 1 plimitpl 152 284 0 266 1 0 1 1 0 8 0 sigapl 424 1510 0 1436 9 0 9 9 0 8 0 knotepl 120 786 0 0 24 0 24 24 0 8 0 kqueuepl 224 628 0 615 11 10 1 5 0 8 0 pipepl 344 304 0 276 9 6 3 9 0 8 0 fdescpl 528 1465 0 1435 3 0 3 3 0 8 0 filepl 160 10185 0 9955 29 17 12 20 0 8 0 lockfpl 104 745 0 742 2 1 1 2 0 8 0 lockfspl 48 217 0 214 1 0 1 1 0 8 0 sessionpl 144 36 0 27 1 0 1 1 0 8 0 pgrppl 48 55 0 38 1 0 1 1 0 8 0 ucredpl 104 1442 0 1429 1 0 1 1 0 8 0 zombiepl 144 1441 0 1440 1 0 1 1 0 8 0 processpl 1248 1510 0 1436 7 0 7 7 0 8 0 procpl 664 3180 0 3090 10 2 8 9 0 8 0 sosppl 168 9 0 7 3 2 1 1 0 8 0 sockpl 752 2622 0 2582 35 30 5 17 0 8 0 mcl64k 65536 16 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 114 0 0 15 0 15 15 0 8 0 mcl2k 2048 23 0 0 3 0 3 3 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 329 0 0 21 0 21 21 0 8 0 bufpl 280 13774 0 7631 440 0 440 440 0 8 0 anonpl 32 11007 0 0 89 0 89 89 0 246 0 amapchunkpl 152 44555 0 43831 62 27 35 38 0 158 3 amappl16 200 5688 0 5618 45 38 7 24 0 8 0 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 138 0 126 1 0 1 1 0 8 0 amappl13 176 11 0 11 2 2 0 1 0 8 0 amappl12 168 2167 0 2137 3 1 2 2 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 3 0 2 2 1 1 1 0 8 0 amappl9 144 252 0 251 1 0 1 1 0 8 0 amappl8 136 35 0 32 1 0 1 1 0 8 0 amappl7 128 122 0 110 1 0 1 1 0 8 0 amappl6 120 298 0 293 1 0 1 1 0 8 0 amappl5 112 138 0 128 1 0 1 1 0 8 0 amappl4 104 350 0 327 1 0 1 1 0 8 0 amappl3 96 8131 0 8010 4 0 4 4 0 8 0 amappl2 88 754 0 689 2 0 2 2 0 8 0 amappl1 80 14846 0 14245 15 0 15 15 0 8 0 amappl 88 11376 0 11195 5 0 5 5 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 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 256 0 256 2 2 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 72 101 0 6 2 0 2 2 0 8 0 uaddrrnd 24 1465 0 1435 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1465 0 1435 1 0 1 1 0 8 0 vmmpekpl 168 13311 0 13259 3 0 3 3 0 8 0 vmmpepl 168 100257 0 98219 113 15 98 113 0 357 0 vmsppl 488 1464 0 1435 5 0 5 5 0 8 0 rwobjpl 80 33005 0 27948 104 0 104 104 0 8 0 pdppl 4096 2937 0 2870 113 42 71 83 0 8 4 pvpl 32 20246 0 0 164 0 164 164 0 265 0 pmappl 256 1464 0 1435 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 315 0 61 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace sys_semop(ffff800033820a98,ffff80003c523220,ffff80003c523170) at sys_semop+0x3d5 sys/kern/sysv_sem.c:617 syscall(ffff80003c523220) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c523220) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7562cf8b140, count: -3 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff8000299edff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299edff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -5