kernel: protection fault trap, code=0 Stopped at sys_semop+0x45b: 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(ffff8000ffff0cf0,ffff80003c525000,ffff80003c524f50) at sys_semop+0x45b sys/kern/sysv_sem.c:615 syscall(ffff80003c525000) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c525000) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x259b5029e60, count: -3 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003c524f20 rbx 0 rdx 0 rcx 0xffff8000ffff0cf0 rax 0xdeadbeefdeadbeef r8 0x7f7fffffc000 r9 0 r10 0xa282459a7e2c2f05 r11 0xcb35b2181f8ccdd7 r12 0xffff80000142f804 r13 0 r14 0xffff80003c525000 r15 0 rip 0xffffffff825ca59b sys_semop+0x45b cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c524e00 ss 0x10 sys_semop+0x45b: movzwl 0(%rax),%r15d ddb{0}> show proc PROC (syz-executor) tid=440444 pid=22866 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=84, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff1730,0xffff8000ffff1c60 process=0xffff8000fffed7b0 user=0xffff80003c520000, vmspace=0xfffffd806bcc5020 estcpu=34, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 81343 81190 5744 0 2 0x10 syz-executor 81343 295933 5744 0 2 0x4000010 syz-executor 81343 294542 5744 0 3 0x4000090 fsleep syz-executor 22866 116535 14963 0 2 0 syz-executor 22866 523037 14963 0 2 0x4000000 syz-executor *22866 440444 14963 0 7 0x4000000 syz-executor 22866 411863 14963 0 3 0x4000080 fsleep syz-executor 75850 135467 96951 0 3 0x80 nanoslp syz-executor 75850 56559 96951 0 3 0x4000080 piperd syz-executor 75850 233594 96951 0 3 0x4000080 fsleep syz-executor 75850 236487 96951 0 3 0x4000080 fsleep syz-executor 20930 32282 44687 0 3 0x82 wait syz-executor 51276 399450 44687 0 2 0x2 syz-executor 72076 30902 44687 0 3 0x82 nanoslp syz-executor 61332 357905 44687 0 2 0x3 syz-executor 64902 69257 0 0 3 0x14280 nfsidl nfsio 23703 414692 0 0 3 0x14280 nfsidl nfsio 58353 496524 0 0 3 0x14280 nfsidl nfsio 56372 31914 0 0 3 0x14280 nfsidl nfsio 5767 220959 0 0 3 0x14280 nfsidl nfsio 58224 71656 0 0 3 0x14280 nfsidl nfsio 95421 451345 0 0 3 0x14280 nfsidl nfsio 34997 17192 0 0 3 0x14280 nfsidl nfsio 30527 486273 0 0 3 0x14280 nfsidl nfsio 55627 28363 0 0 3 0x14280 nfsidl nfsio 1304 500480 0 0 3 0x14280 nfsidl nfsio 63297 76160 0 0 3 0x14280 nfsidl nfsio 56803 81593 0 0 3 0x14280 nfsidl nfsio 75318 209838 0 0 3 0x14280 nfsidl nfsio 44167 362147 0 0 3 0x14280 nfsidl nfsio 22112 310845 0 0 3 0x14280 nfsidl nfsio 40293 147670 0 0 3 0x14280 nfsidl nfsio 83842 1708 0 0 3 0x14280 nfsidl nfsio 93061 422678 0 0 3 0x14280 nfsidl nfsio 7080 72087 0 0 3 0x14280 nfsidl nfsio 5744 500677 44687 0 3 0x82 nanoslp syz-executor 96951 502266 44687 0 3 0x82 nanoslp syz-executor 561 413429 1 0 3 0x100083 ttyin getty 4491 262929 0 0 3 0x14200 bored sosplice 14963 16509 44687 0 3 0x82 nanoslp syz-executor 8432 32718 44687 0 3 0x82 wait syz-executor 44687 226718 2723 0 3 0x82 kqread syz-executor 2723 370560 61909 0 3 0x10008a sigsusp ksh 61909 113624 31575 0 3 0x98 kqread sshd-session 31575 475236 23396 0 3 0x92 kqread sshd-session 23396 7343 1 0 3 0x88 kqread sshd 9164 38225 58422 74 3 0x1100092 bpf pflogd 58422 392683 1 0 3 0x80 sbwait pflogd 61242 251404 37380 73 3 0x1100090 kqread syslogd 37380 229167 1 0 3 0x100082 sbwait syslogd 1508 429289 1 0 3 0x100080 kqread resolvd 84953 266709 94227 77 3 0x100092 kqread dhcpleased 66287 338865 94227 77 3 0x100092 kqread dhcpleased 94227 95606 1 0 3 0x80 kqread dhcpleased 97947 314315 0 0 3 0x14200 bored smr 56870 21399 0 0 2 0x14200 zerothread 2216 310825 0 0 3 0x14200 aiodoned aiodoned 63319 345723 0 0 3 0x14200 syncer update 5497 126288 0 0 3 0x14200 cleaner cleaner 94171 229001 0 0 3 0x14200 reaper reaper 90601 444785 0 0 3 0x14200 pgdaemon pagedaemon 40483 385055 0 0 3 0x14200 bored viomb 11684 406176 0 0 3 0x40014200 acpi0 acpi0 95722 296546 0 0 7 0x40014200 idle1 10079 311874 0 0 3 0x14200 bored softnet3 77831 81829 0 0 3 0x14200 bored softnet2 86127 286806 0 0 3 0x14200 bored softnet1 90488 88473 0 0 3 0x14200 bored softnet0 49677 91842 0 0 3 0x14200 bored systqmp 16944 506797 0 0 3 0x14200 bored systq 8904 405454 0 0 3 0x14200 tmoslp softclockmp 22765 253015 0 0 3 0x40014200 tmoslp softclock 51756 164712 0 0 3 0x40014200 idle0 1 182953 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 81343 (syz-executor) thread 0xffff80003c4daf98 (295933) exclusive rrwlock inode r = 0 (0xfffffd806d482548) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 ufs_rename+0x204 sys/ufs/ufs/ufs_vnops.c:768 #6 VOP_RENAME+0x13c sys/kern/vfs_vops.c:376 #7 dorenameat+0x3f8 sys/kern/vfs_syscalls.c:3030 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806bafdbe0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd 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:1201 #8 ufs_lookup+0x1a72 sys/ufs/ufs/ufs_lookup.c:520 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dorenameat+0x145 sys/kern/vfs_syscalls.c:3000 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806bafd760) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 dorenameat+0x145 sys/kern/vfs_syscalls.c:3000 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 Process 22866 (syz-executor) thread 0xffff8000ffff2a50 (523037) exclusive rrwlock inode r = 0 (0xfffffd806bafd2e0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 spec_open_clone+0x2a0 sys/kern/spec_vnops.c:725 #6 spec_open+0x329 sys/kern/spec_vnops.c:148 #7 VOP_OPEN+0x8b sys/kern/vfs_vops.c:138 #8 vn_open+0x708 sys/kern/vfs_vnops.c:177 #9 doopenat+0x32e sys/kern/vfs_syscalls.c:1137 #10 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #11 Xsyscall+0x128 Process 22866 (syz-executor) thread 0xffff8000ffff0cf0 (440444) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838ed148) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 yield+0x6a sys/kern/sched_bsd.c:320 #4 malloc+0xe5 sys/kern/kern_malloc.c:174 #5 sys_semop+0x234 sys/kern/sysv_sem.c:564 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #7 Xsyscall+0x128 Process 51276 (syz-executor) thread 0xffff8000ffff07d0 (399450) exclusive rwlock fdlock r = 0 (0xffff80002a2878d0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 doopenat+0x173 sys/kern/vfs_syscalls.c:-1 #3 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #4 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10224 11127K 11607K 166960K 15415 0 pcb 17 13K 20K 166960K 450 0 rtable 228 11K 11K 166960K 976 0 pf 37 18K 22K 166960K 228 0 ifaddr 38 7K 9K 166960K 167 0 ifgroup 54 2K 2K 166960K 272 0 sysctl 4 1K 9K 166960K 80 0 counters 64 36K 37K 166960K 244 0 ioctlops 0 0K 4K 166960K 1942 0 iov 0 0K 28K 166960K 134 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1499 94K 94K 166960K 4377 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 42 0 VM map 2 1K 1K 166960K 2 0 sem 12 88K 88K 166960K 195 0 dirhash 15 2K 3K 166960K 60 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 85K 166960K 2574 0 sigio 0 0K 0K 166960K 86 0 proc 72 91K 127K 166960K 1043 0 subproc 72 4K 4K 166960K 180 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 550 0 in_multi 83 6K 7K 166960K 292 0 ether_multi 1 0K 0K 166960K 18 0 mrt 1 0K 0K 166960K 17 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 163 731K 731K 166960K 163 0 exec 0 0K 1K 166960K 1051 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 256 169K 188K 166960K 25189 0 UVM aobj 57 2K 4K 166960K 69 0 pinsyscall 41 82K 100K 166960K 4001 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 134 0 NDP 11 0K 2K 166960K 119 0 temp 79 8684K 8927K 166960K 119473 0 kqueue 13 20K 30K 166960K 457 0 SYN cache 2 10K 18K 166960K 3 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 120 267 0 264 3 2 1 3 0 8 0 rtentry 176 315 0 218 7 1 6 6 0 8 0 unpcb 144 2021 0 2003 20 19 1 6 0 8 0 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 808 1219 0 1215 42 41 1 14 0 8 0 arp 128 66 0 44 1 0 1 1 0 8 0 inpcb 384 3080 0 3036 48 42 6 15 0 8 1 nd6 144 67 0 44 2 0 2 2 0 8 0 pkpcb 40 19 0 19 4 3 1 1 0 8 1 kcovpl 48 20 0 12 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 59 0 59 5 5 0 1 0 8 0 pppxif 1504 10 0 10 5 5 0 1 0 8 0 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 20 0 15 1 0 1 1 0 482 0 pffrnode 88 17 0 12 1 0 1 1 0 8 0 pffrent 40 62 0 57 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 pfrktable 1344 2 0 1 1 0 1 1 0 8 0 pfanchor 1288 3 0 1 2 1 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 228 0 150 1 0 1 1 0 8 0 pfstkey 128 230 0 152 4 0 4 4 0 8 0 pfstate 384 229 0 151 10 1 9 10 0 8 0 pfrule 1344 26 0 18 2 1 1 2 0 8 0 rttmr 136 3 0 3 3 3 0 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 1253 0 843 38 10 28 31 0 8 0 art_table 32 1257 0 843 4 0 4 4 0 8 0 art_node 16 307 0 223 1 0 1 1 0 8 0 sysvmsgpl 40 40 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 188 0 179 1 0 1 1 0 8 0 shmpl 112 66 0 12 2 0 2 2 0 8 0 dirhash 1024 51 0 32 3 0 3 3 0 8 0 dino2pl 256 6241 0 4711 96 0 96 96 0 8 0 ffsino 288 6241 0 4711 110 0 110 110 0 8 0 nchpl 144 9540 0 7819 64 0 64 64 0 8 0 rtmask 32 4 0 4 3 3 0 1 0 8 0 uvmvnodes 80 5622 0 0 115 0 115 115 0 8 0 vnodes 216 5622 0 0 313 0 313 313 0 8 0 namei 1024 37087 0 37085 4 3 1 2 0 8 0 percpumem 16 137 0 90 1 0 1 1 0 8 0 kstatmem 264 160 0 136 4 2 2 3 0 8 0 scsiplug 72 10 0 10 6 6 0 1 0 8 0 scxspl 216 27535 0 27535 13 12 1 8 1 8 1 plimitpl 152 386 0 368 1 0 1 1 0 8 0 sigapl 424 2887 0 2818 10 1 9 9 0 8 0 knotepl 120 764 0 0 24 0 24 24 0 8 0 kqueuepl 224 932 0 923 14 11 3 5 0 8 2 pipepl 336 480 0 452 6 3 3 6 0 8 0 fdescpl 520 2840 0 2810 3 0 3 3 0 8 0 filepl 160 20982 0 20696 43 26 17 20 0 8 4 lockfpl 104 1035 0 1000 1 0 1 1 0 8 0 lockfspl 48 311 0 308 1 0 1 1 0 8 0 sessionpl 144 36 0 27 1 0 1 1 0 8 0 pgrppl 48 76 0 59 1 0 1 1 0 8 0 ucredpl 104 4037 0 4022 1 0 1 1 0 8 0 zombiepl 144 3919 0 3916 1 0 1 1 0 8 0 processpl 1208 2887 0 2818 6 0 6 6 0 8 0 procpl 656 6816 0 6739 8 0 8 8 0 8 0 srpgc 96 34 0 34 7 7 0 1 0 8 0 sosppl 168 16 0 16 7 7 0 1 0 8 0 sockpl 728 5541 0 5480 72 65 7 21 0 8 1 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 119 0 0 15 0 15 15 0 8 0 mcl2k 2048 38 0 0 5 1 4 5 0 8 0 mtagpl 96 114 0 0 3 0 3 3 0 8 0 mbufpl 256 1282 0 0 75 0 75 75 0 8 0 bufpl 280 7045 0 903 439 0 439 439 0 8 0 anonpl 32 15461 0 0 124 0 124 124 0 246 0 amapchunkpl 152 83926 0 83269 66 36 30 35 0 158 3 amappl16 200 6913 0 6683 58 35 23 25 0 8 2 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 143 0 131 1 0 1 1 0 8 0 amappl13 176 7 0 7 3 3 0 1 0 8 0 amappl12 168 3711 0 3681 4 2 2 3 0 8 0 amappl11 160 48 0 34 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 250 0 250 1 1 0 1 0 8 0 amappl8 136 82 0 79 1 0 1 1 0 8 0 amappl7 128 165 0 152 1 0 1 1 0 8 0 amappl6 120 302 0 297 1 0 1 1 0 8 0 amappl5 112 175 0 165 1 0 1 1 0 8 0 amappl4 104 378 0 356 1 0 1 1 0 8 0 amappl3 96 17421 0 17310 5 1 4 4 0 8 0 amappl2 88 826 0 762 2 0 2 2 0 8 0 amappl1 80 19200 0 18602 15 2 13 14 0 8 0 amappl 88 23866 0 23686 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 8 0 8 3 3 0 1 0 8 0 dma128 128 255 0 255 3 3 0 1 0 8 0 dma64 64 7 0 7 2 2 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 68 0 12 2 0 2 2 0 8 0 uaddrrnd 24 2840 0 2810 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2840 0 2810 1 0 1 1 0 8 0 vmmpekpl 168 21900 0 21837 4 0 4 4 0 8 0 vmmpepl 168 179466 0 177286 138 31 107 109 0 357 3 vmsppl 480 2839 0 2810 6 1 5 5 0 8 0 rwobjpl 72 50104 0 43269 133 4 129 129 0 8 0 pdppl 4096 5688 0 5620 124 50 74 82 0 8 6 pvpl 32 22659 0 0 182 0 182 182 0 265 0 pmappl 256 2839 0 2810 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 536 0 114 13 0 13 13 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace sys_semop(ffff8000ffff0cf0,ffff80003c525000,ffff80003c524f50) at sys_semop+0x45b sys/kern/sysv_sem.c:615 syscall(ffff80003c525000) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c525000) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x259b5029e60, count: -3 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff8000299ddff0) 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+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffff8000299ddff0) at sched_idle+0x4f8 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -5