witness: lock order reversal: 1st 0xfffffd806ce33d50 vmmaplk (&map->lock) 2nd 0xfffffd806ddedc58 inode (&ip->i_lock) lock order [1] vmmaplk (&map->lock) -> [2] inode (&ip->i_lock) #0 rw_enter+0x122 #1 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #2 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #3 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #4 vn_rdwr+0xd1 sys/kern/vfs_vnops.c:320 #5 vndstrategy+0x4ff sys/dev/vnd.c:342 #6 physio+0x2f6 sys/kern/kern_physio.c:162 #7 spec_read+0x155 sys/kern/spec_vnops.c:215 #8 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #9 vn_read+0x17b sys/kern/vfs_vnops.c:369 #10 dofilereadv+0x230 sys/kern/sys_generic.c:252 #11 sys_readv+0xd8 sys/kern/sys_generic.c:199 #12 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #12 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 lock order [2] inode (&ip->i_lock) -> [1] vmmaplk (&map->lock) #0 rw_enter_read+0xab sys/kern/kern_rwlock.c:112 #1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1819 #2 uvm_fault_check+0x49 sys/uvm/uvm_fault.c:672 #3 uvm_fault+0xf5 sys/uvm/uvm_fault.c:600 #4 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 #5 kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 #6 alltraps_kern_meltdown+0x7b #7 copyout+0x57 #8 ffs_read+0x422 sys/ufs/ffs/ffs_vnops.c:254 #9 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #10 vn_rdwr+0x15b #11 vmcmd_map_readvn+0x142 sys/kern/exec_subr.c:249 #12 exec_process_vmcmds+0xfb sys/kern/exec_subr.c:139 #13 sys_execve+0xbe4 sys/kern/kern_exec.c:468 #14 start_init+0x3c6 sys/kern/init_main.c:714 #15 proc_trampoline+0x10 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(fffffd806ddedc58,9,0) at witness_checkorder+0x1047 rw_enter(fffffd806ddedc48,1) at rw_enter+0x122 rrw_enter(fffffd806ddedc48,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd80669bb528,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd80669bb528,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564 vn_rdwr(0,fffffd80669bb528,ffff800011a26140,10000,0,1,8483af9f4f6f2f5f,0,ffff800000b3e000,0) at vn_rdwr+0xd1 sys/kern/vfs_vnops.c:320 vndstrategy(fffffd805f8629f8) at vndstrategy+0x4ff sys/dev/vnd.c:342 physio(ffffffff810efea0,2902,8000,ffffffff82505c00,ffff800037281810) at physio+0x2f6 sys/kern/kern_physio.c:162 spec_read(ffff800037281600) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd806e0c1eb8,ffff800037281810,0,fffffd807f7d3680) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd806a7baa38,ffff800037281810,0) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff80003599d6f0,5,ffff800037281810,0,ffff8000372818d0) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_readv(ffff80003599d6f0,ffff800037281980,ffff8000372818d0) at sys_readv+0xd8 sys/kern/sys_generic.c:199 syscall(ffff800037281980) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff800037281980) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x39a9c44f320, count: -16 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff8000372810c0 rbx 0xfffffd80042c6be0 rdx 0 rcx 0xffff80003599d6f0 rax 0xffffffff83424ff0 cpu_info_full_primary+0x1ff0 r8 0xffff800037280fa0 r9 0x8080808080808080 r10 0xea0414785b81dbd7 r11 0xec3a5da6093cc7a2 r12 0 r13 0xfffffd8003adee00 r14 0x3 r15 0xffffffff rip 0xffffffff81668fa5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000372810b0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=230951 pid=73176 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003599dc00,0xffff8000ffff6a50 process=0xffff8000371d4d98 user=0xffff80003727c000, vmspace=0xfffffd806ce33c58 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 53441 58268 14845 0 2 0 syz-executor 53441 87476 14845 0 2 0x4000000 syz-executor 83551 509084 49091 0 2 0 syz-executor 83551 414271 49091 0 3 0x4000080 fsleep syz-executor 68625 369265 97591 0 2 0x10 syz-executor 68625 515533 97591 0 3 0x4000090 fsleep syz-executor 15137 312560 82168 0 2 0 syz-executor 15137 64784 82168 0 3 0x4000080 kqpoll syz-executor 15137 105698 82168 0 3 0x4000080 fsleep syz-executor 73176 253260 28240 0 2 0 syz-executor *73176 230951 28240 0 7 0x4000000 syz-executor 10302 323821 27619 0 2 0 syz-executor 10302 331631 27619 0 2 0x4000000 syz-executor 10302 266580 27619 0 3 0x4000080 netacc syz-executor 81042 363630 92287 0 3 0x80 nanoslp syz-executor 81042 61858 92287 0 3 0x4000080 lockf syz-executor 81042 447641 92287 0 3 0x4000080 fsleep syz-executor 17529 367677 1 0 3 0x80 nanoslp init 49091 451488 37496 0 3 0x82 nanoslp syz-executor 15269 327157 0 0 3 0x14200 acct acct 93916 180244 0 0 3 0x14200 bored sosplice 92287 200277 37496 0 3 0x82 nanoslp syz-executor 82168 84789 37496 0 3 0x82 nanoslp syz-executor 97591 307527 37496 0 3 0x82 nanoslp syz-executor 57266 471055 37496 0 3 0x82 nanoslp syz-executor 27619 272425 37496 0 3 0x82 nanoslp syz-executor 14845 438188 37496 0 3 0x82 nanoslp syz-executor 28240 313711 37496 0 3 0x82 nanoslp syz-executor 37496 408715 88939 0 3 0x82 kqread syz-executor 88939 176150 22731 0 3 0x10008a sigsusp ksh 22731 205599 7935 0 3 0x98 kqread sshd-session 7935 281549 24615 0 3 0x92 kqread sshd-session 24615 220125 1 0 3 0x88 kqread sshd 11783 54934 70370 74 3 0x1100092 bpf pflogd 70370 406677 1 0 3 0x80 sbwait pflogd 880 22684 81443 73 3 0x1100090 kqread syslogd 81443 499863 1 0 3 0x100082 sbwait syslogd 9667 98568 1 0 3 0x100080 kqread resolvd 64803 510395 61262 77 3 0x100092 kqread dhcpleased 10986 334438 61262 77 3 0x100092 kqread dhcpleased 61262 434226 1 0 3 0x80 kqread dhcpleased 98641 21783 0 0 3 0x14200 bored smr 45545 273667 0 0 2 0x14200 zerothread 20925 45984 0 0 3 0x14200 aiodoned aiodoned 44399 306636 0 0 3 0x14200 syncer update 70836 95755 0 0 3 0x14200 cleaner cleaner 37883 60212 0 0 3 0x14200 reaper reaper 15737 408518 0 0 3 0x14200 pgdaemon pagedaemon 73657 376387 0 0 3 0x14200 bored viomb 38552 193476 0 0 3 0x40014200 acpi0 acpi0 509 344718 0 0 7 0x40014200 idle1 53013 434378 0 0 3 0x14200 bored softnet3 30665 317856 0 0 3 0x14200 bored softnet2 43902 153745 0 0 3 0x14200 bored softnet1 51734 69916 0 0 3 0x14200 bored softnet0 59532 314846 0 0 3 0x14200 bored systqmp 96875 203947 0 0 3 0x14200 bored systq 11284 521022 0 0 3 0x14200 tmoslp softclockmp 89045 479288 0 0 3 0x40014200 tmoslp softclock 70361 6733 0 0 3 0x40014200 idle0 1 388287 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 73176 (syz-executor) thread 0xffff80003599d6f0 (230951) shared rwlock vmmaplk r = 0 (0xfffffd806ce33d50) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvm_vslock_device+0x149 sys/uvm/uvm_glue.c:172 #2 physio+0x277 sys/kern/kern_physio.c:139 #3 spec_read+0x155 sys/kern/spec_vnops.c:215 #4 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #5 vn_read+0x17b sys/kern/vfs_vnops.c:369 #6 dofilereadv+0x230 sys/kern/sys_generic.c:252 #7 sys_readv+0xd8 sys/kern/sys_generic.c:199 #8 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #8 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835f75c8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 vn_read+0x56 sys/kern/vfs_vnops.c:351 #2 dofilereadv+0x230 sys/kern/sys_generic.c:252 #3 sys_readv+0xd8 sys/kern/sys_generic.c:199 #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10223 11396K 11588K 166960K 14224 0 pcb 17 18K 20K 166960K 439 0 rtable 188 7K 9K 166960K 582 0 pf 34 17K 25K 166960K 98 0 ifaddr 35 6K 7K 166960K 78 0 ifgroup 50 2K 2K 166960K 121 0 sysctl 2 0K 0K 166960K 8 0 counters 60 35K 36K 166960K 100 0 ioctlops 0 0K 4K 166960K 1646 0 iov 0 0K 16K 166960K 282 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1546 97K 98K 166960K 3051 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 31 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 71 0 dirhash 12 2K 2K 166960K 63 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 18 65K 97K 166960K 1941 0 sigio 0 0K 0K 166960K 73 0 proc 67 91K 140K 166960K 781 0 subproc 104 6K 6K 166960K 120 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 6 0K 0K 166960K 334 0 in_multi 81 5K 7K 166960K 209 0 ether_multi 2 0K 0K 166960K 20 0 mrt 1 0K 0K 166960K 9 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 127 572K 572K 166960K 127 0 exec 0 0K 1K 166960K 885 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 250 74K 87K 166960K 19877 0 UVM aobj 131 7K 7K 166960K 132 0 pinsyscall 42 84K 108K 166960K 3121 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 126 0 NDP 11 0K 2K 166960K 54 0 temp 79 6828K 7080K 166960K 86143 0 kqueue 14 22K 30K 166960K 349 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 120 302 0 299 3 2 1 3 0 8 0 rtentry 112 167 0 86 4 0 4 4 0 8 0 unpcb 144 1082 0 1062 3 2 1 2 0 8 0 syncache 336 11 0 11 5 5 0 1 0 8 0 tcpqe 32 1 4 1 1 1 0 1 0 8 0 tcpcb 808 709 0 703 20 18 2 7 0 8 1 arp 120 28 0 14 1 0 1 1 0 8 0 inpcb 336 2777 0 2761 42 35 7 13 0 8 5 nd6 136 37 0 16 2 0 2 2 0 8 0 pkpcb 40 17 0 17 6 5 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1168 8 0 8 6 5 1 1 0 8 1 pfstscr 40 3 0 3 2 2 0 1 0 8 0 pffrag 232 14 0 4 1 0 1 1 0 482 0 pffrnode 88 14 0 4 1 0 1 1 0 8 0 pffrent 40 29 0 19 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 1 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 177 0 74 1 0 1 1 0 8 0 pfstkey 128 180 0 77 4 0 4 4 0 8 0 pfstate 376 179 0 76 11 0 11 11 0 8 0 pfrule 1344 26 0 19 2 0 2 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 703 0 310 32 4 28 32 0 8 0 art_table 32 706 0 310 5 1 4 5 0 8 0 art_node 16 156 0 87 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 68 0 58 1 0 1 1 0 8 0 shmpl 112 129 0 1 4 0 4 4 0 8 0 dirhash 1024 52 0 35 3 0 3 3 0 8 0 dino2pl 256 4837 0 3344 95 0 95 95 0 8 0 ffsino 272 4837 0 3344 101 0 101 101 0 8 0 nchpl 144 7719 0 7173 63 39 24 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 28041 0 28041 6 5 1 2 0 8 1 percpumem 16 64 0 20 1 0 1 1 0 8 0 kstatmem 264 60 0 40 2 0 2 2 0 8 0 scsiplug 72 7 0 7 5 5 0 1 0 8 0 scxspl 216 23979 0 23979 19 18 1 8 1 8 1 plimitpl 152 478 0 462 1 0 1 1 0 8 0 sigapl 424 2283 0 2231 10 4 6 9 0 8 0 futexpl 64 29000 0 28996 1 0 1 1 0 8 0 knotepl 120 616 0 0 18 0 18 18 0 8 0 kqueuepl 216 777 0 766 7 2 5 5 0 8 4 pipepl 320 433 0 406 16 8 8 8 0 8 5 fdescpl 496 2241 0 2209 6 1 5 6 0 8 0 filepl 152 16113 0 15856 47 27 20 20 0 8 8 lockfpl 104 678 0 674 1 0 1 1 0 8 0 lockfspl 48 258 0 255 1 0 1 1 0 8 0 sessionpl 144 32 0 24 1 0 1 1 0 8 0 pgrppl 48 193 0 177 1 0 1 1 0 8 0 ucredpl 104 2504 0 2489 1 0 1 1 0 8 0 zombiepl 144 2576 0 2575 4 3 1 1 0 8 0 processpl 1160 2283 0 2231 6 2 4 6 0 8 0 procpl 648 5164 0 5102 9 3 6 8 0 8 0 srpgc 96 3 0 3 2 2 0 1 0 8 0 sosppl 168 12 0 12 4 4 0 1 0 8 0 sockpl 664 4223 0 4185 44 35 9 15 0 8 5 mcl64k 65536 3 0 0 2 1 1 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 134 0 0 17 1 16 17 0 8 0 mcl2k 2048 23 0 0 3 0 3 3 0 8 0 mtagpl 96 95 0 0 3 0 3 3 0 8 0 mbufpl 256 638 0 0 38 0 38 38 0 8 0 bufpl 280 6967 0 792 442 0 442 442 0 8 0 anonpl 24 328434 0 321201 94 37 57 69 0 185 0 amapchunkpl 152 64670 0 64012 43 15 28 31 0 158 0 amappl16 200 8152 0 8015 54 41 13 20 0 8 0 amappl15 192 5 0 5 2 2 0 1 0 8 0 amappl14 184 139 0 128 1 0 1 1 0 8 0 amappl13 176 14 0 14 2 2 0 1 0 8 0 amappl12 168 2948 0 2917 3 1 2 2 0 8 0 amappl11 160 81 0 67 1 0 1 1 0 8 0 amappl10 152 73 0 73 2 2 0 1 0 8 0 amappl9 144 146 0 146 1 1 0 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 116 0 105 1 0 1 1 0 8 0 amappl6 120 202 0 200 1 0 1 1 0 8 0 amappl5 112 150 0 137 1 0 1 1 0 8 0 amappl4 104 354 0 335 1 0 1 1 0 8 0 amappl3 96 12189 0 12089 3 0 3 3 0 8 0 amappl2 88 2640 0 2554 3 0 3 3 0 8 0 amappl1 80 15250 0 14711 15 1 14 14 0 8 0 amappl 88 19198 0 19006 5 0 5 5 0 92 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma8192 8192 1 0 1 1 1 0 1 0 8 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 7 0 7 2 2 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 24 0 23 1 0 1 1 0 8 0 aobjpl 72 131 0 1 3 0 3 3 0 8 0 uaddrrnd 24 2241 0 2209 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2241 0 2209 1 0 1 1 0 8 0 vmmpekpl 168 18612 0 18571 3 0 3 3 0 8 0 vmmpepl 168 143461 0 141464 120 28 92 99 0 357 0 vmsppl 448 2240 0 2209 6 2 4 5 0 8 0 rwobjpl 56 45346 0 38269 105 4 101 103 0 8 0 pdppl 4096 4489 0 4418 117 46 71 87 0 8 0 pvpl 32 18707 0 0 151 0 151 151 0 265 0 pmappl 248 2240 0 2209 4 1 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 504 0 127 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(fffffd806ddedc58,9,0) at witness_checkorder+0x1047 rw_enter(fffffd806ddedc48,1) at rw_enter+0x122 rrw_enter(fffffd806ddedc48,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd80669bb528,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd80669bb528,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564 vn_rdwr(0,fffffd80669bb528,ffff800011a26140,10000,0,1,8483af9f4f6f2f5f,0,ffff800000b3e000,0) at vn_rdwr+0xd1 sys/kern/vfs_vnops.c:320 vndstrategy(fffffd805f8629f8) at vndstrategy+0x4ff sys/dev/vnd.c:342 physio(ffffffff810efea0,2902,8000,ffffffff82505c00,ffff800037281810) at physio+0x2f6 sys/kern/kern_physio.c:162 spec_read(ffff800037281600) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd806e0c1eb8,ffff800037281810,0,fffffd807f7d3680) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd806a7baa38,ffff800037281810,0) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff80003599d6f0,5,ffff800037281810,0,ffff8000372818d0) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_readv(ffff80003599d6f0,ffff800037281980,ffff8000372818d0) at sys_readv+0xd8 sys/kern/sys_generic.c:199 syscall(ffff800037281980) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff800037281980) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x39a9c44f320, count: -16 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffff800029b7bff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -5