kernel: protection fault trap, code=0 Stopped at lf_advlock+0x2f7: incl 0x28(%r12) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace lf_advlock(ffff8000014cb060,0,fffffd806bdd5bf0,7,ffff80003c5f1c40,40) at lf_advlock+0x2f7 ls_ref sys/kern/vfs_lockf.c:138 [inline] lf_advlock(ffff8000014cb060,0,fffffd806bdd5bf0,7,ffff80003c5f1c40,40) at lf_advlock+0x2f7 sys/kern/vfs_lockf.c:278 VOP_ADVLOCK(fffffd805f601db8,fffffd806bdd5bf0,7,ffff80003c5f1c40,40) at VOP_ADVLOCK+0x87 sys/kern/vfs_vops.c:620 sys_fcntl(ffff8000ffffd200,ffff80003c5f1db0,ffff80003c5f1d00) at sys_fcntl+0x1277 sys/kern/kern_descrip.c:613 syscall(ffff80003c5f1db0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5f1db0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd2335321b70, count: -5 ddb{0}> show registers rdi 0xffff8000314b7000 rsi 0xa71 rbp 0xffff80003c5f1b70 rbx 0x30656c00010000 rdx 0xffff8000314b7000 rcx 0xa70 rax 0xffffffff8177dbd0 witness_assert+0x510 r8 0xa0 r9 0 r10 0x1fa84a2c29f10ab3 r11 0x527088c51b2b8a60 r12 0xdeaf4152deaf4152 r13 0x7 r14 0xffff8000014cb060 r15 0x30656c0001008e rip 0xffffffff81f650e7 lf_advlock+0x2f7 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c5f1ae0 ss 0x10 lf_advlock+0x2f7: incl 0x28(%r12) ddb{0}> show proc PROC (syz-executor) tid=381713 pid=88014 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=82, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000310b22b8,0xffffffff839baea0 process=0xffff80003c5644c0 user=0xffff80003c5ec000, vmspace=0xfffffd806be3bac8 estcpu=32, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 77728 356633 41204 0 2 0 syz-executor 7747 152832 20018 0 3 0 vmmaplk syz-executor 7747 287640 20018 0 2 0x4000000 syz-executor 88014 334573 31947 0 2 0 syz-executor 88014 53921 31947 0 2 0x4000000 syz-executor *88014 381713 31947 0 7 0x4000000 syz-executor 34135 204385 96700 0 2 0 syz-executor 34135 344664 96700 0 2 0x4000000 syz-executor 34135 228852 96700 0 2 0x4000000 syz-executor 16457 221751 86805 -1 2 0x11 syz-executor 16457 45604 86805 -1 3 0x4000090 fsleep syz-executor 52377 430201 41936 0 2 0x1 syz-executor 52377 460894 41936 0 3 0x4000080 fsleep syz-executor 52377 292470 41936 0 3 0x4000080 fsleep syz-executor 95667 196549 79338 60928 2 0x11 syz-executor 95667 91890 79338 60928 3 0x4000090 fsleep syz-executor 95667 413771 79338 60928 3 0x4000090 fsleep syz-executor 95667 334147 79338 60928 3 0x4000090 fsleep syz-executor 41204 496865 40922 0 2 0x3 syz-executor 36271 374576 0 0 3 0x14280 nfsidl nfsio 72213 252419 0 0 3 0x14280 nfsidl nfsio 18301 277302 0 0 3 0x14280 nfsidl nfsio 51055 256927 0 0 3 0x14280 nfsidl nfsio 67879 79543 0 0 3 0x14280 nfsidl nfsio 62190 384576 0 0 3 0x14280 nfsidl nfsio 88092 32920 0 0 3 0x14280 nfsidl nfsio 75637 454582 0 0 3 0x14280 nfsidl nfsio 17691 469799 0 0 3 0x14280 nfsidl nfsio 71087 421272 0 0 3 0x14280 nfsidl nfsio 90769 241919 0 0 3 0x14280 nfsidl nfsio 17280 136449 0 0 3 0x14280 nfsidl nfsio 37067 136263 0 0 3 0x14280 nfsidl nfsio 78847 149288 0 0 3 0x14280 nfsidl nfsio 31181 8759 0 0 3 0x14280 nfsidl nfsio 90218 476302 0 0 3 0x14280 nfsidl nfsio 8547 127897 0 0 3 0x14280 nfsidl nfsio 34794 363198 0 0 3 0x14280 nfsidl nfsio 38568 376482 0 0 3 0x14280 nfsidl nfsio 28163 265575 0 0 3 0x14280 nfsidl nfsio 55798 307131 0 0 3 0x14200 bored sosplice 41936 295647 40922 0 3 0x82 nanoslp syz-executor 79338 383053 40922 0 3 0x82 nanoslp syz-executor 11144 24359 40922 0 3 0x82 nanoslp syz-executor 86805 26201 40922 0 2 0x3 syz-executor 31947 389002 40922 0 3 0x82 nanoslp syz-executor 20018 3680 40922 0 2 0x3 syz-executor 96700 269557 40922 0 2 0x3 syz-executor 40922 101093 17490 0 3 0x82 kqread syz-executor 17490 267602 72015 0 3 0x10008a sigsusp ksh 72015 60453 89563 0 3 0x98 kqread sshd-session 89563 464123 54732 0 3 0x92 kqread sshd-session 69371 389960 1 0 3 0x100083 ttyin getty 54732 450078 1 0 3 0x88 kqread sshd 82966 475179 87723 74 3 0x1100092 bpf pflogd 87723 367529 1 0 3 0x80 sbwait pflogd 82121 186415 79645 73 3 0x1100090 kqread syslogd 79645 43740 1 0 3 0x100082 sbwait syslogd 77735 410983 1 0 3 0x100080 kqread resolvd 13527 446870 27344 77 3 0x100092 kqread dhcpleased 32458 522689 27344 77 3 0x100092 kqread dhcpleased 27344 473292 1 0 3 0x80 kqread dhcpleased 41958 185398 0 0 3 0x14200 bored smr 9645 517730 0 0 2 0x14200 zerothread 58238 460769 0 0 3 0x14200 aiodoned aiodoned 78682 220307 0 0 3 0x14200 syncer update 1595 255797 0 0 3 0x14200 cleaner cleaner 1277 403820 0 0 2 0x14200 reaper 66943 393229 0 0 3 0x14200 pgdaemon pagedaemon 43818 373551 0 0 3 0x14200 bored viomb 60965 196385 0 0 3 0x40014200 acpi0 acpi0 19297 191036 0 0 7 0x40014200 idle1 44539 77970 0 0 3 0x14200 bored softnet3 41478 360495 0 0 3 0x14200 bored softnet2 53395 89845 0 0 3 0x14200 bored softnet1 76854 67502 0 0 3 0x14200 bored softnet0 97952 139682 0 0 3 0x14200 bored systqmp 6575 158608 0 0 3 0x14200 bored systq 64262 48912 0 0 3 0x14200 tmoslp softclockmp 3727 434066 0 0 3 0x40014200 netlock softclock 74871 75808 0 0 3 0x40014200 idle0 1 187763 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 7747 (syz-executor) thread 0xffff8000310b22b8 (287640) exclusive rwlock vmmaplk r = 0 (0xfffffd806be3ba00) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5250 #3 uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1860 #4 uvm_fault_check+0x987 uvmfault_amapcopy sys/uvm/uvm_fault.c:235 [inline] #4 uvm_fault_check+0x987 sys/uvm/uvm_fault.c:774 #5 uvm_fault+0x106 sys/uvm/uvm_fault.c:668 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 88014 (syz-executor) thread 0xffff8000ffffd200 (381713) exclusive rwlock lockflk r = 0 (0xffffffff837fc6e8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 lf_advlock+0x22a sys/kern/vfs_lockf.c:261 #3 VOP_ADVLOCK+0x87 sys/kern/vfs_vops.c:620 #4 sys_fcntl+0x1277 sys/kern/kern_descrip.c:613 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 Process 34135 (syz-executor) thread 0xffff8000310b2a68 (344664) exclusive rwlock inet46 r = 0 (0xffff8000014de920) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 socreate+0x21d sys/kern/uipc_socket.c:212 #3 sys_socket+0x124 sys/kern/uipc_syscalls.c:101 #4 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 shared rwlock netlock r = 0 (0xffffffff8386bcf8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_read+0x3af sys/kern/kern_rwlock.c:405 #2 solock_shared+0x6e sys/kern/uipc_socket2.c:343 #3 socreate+0x21d sys/kern/uipc_socket.c:212 #4 sys_socket+0x124 sys/kern/uipc_syscalls.c:101 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 Process 34135 (syz-executor) thread 0xffff8000310b2548 (228852) exclusive rwlock futex r = 0 (0xffffffff837d72b8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 sys_futex+0x69 sys/kern/sys_futex.c:98 #3 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 Process 1277 (reaper) thread 0xffff80002a3091f8 (403820) exclusive rwlock kmmaplk r = 0 (0xffffffff8390f890) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5250 #3 uvm_unmap+0x81 sys/uvm/uvm_map.c:1792 #4 km_free+0x87 sys/uvm/uvm_km.c:833 #5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:284 #6 reaper+0x1fe sys/kern/kern_exit.c:469 #7 proc_trampoline+0x10 Process 3727 (softclock) thread 0xffff8000fffff710 (434066) shared rwlock timeout r = 0 (0xffffffff83791e10) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 timeout_run+0xf1 sys/kern/kern_timeout.c:658 #2 softclock_thread+0x163 sys/kern/kern_timeout.c:810 #3 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10203 11021K 11519K 166960K 13606 0 pcb 17 12K 12K 166960K 191 0 rtable 231 9K 11K 166960K 523 0 pf 37 18K 26K 166960K 156 0 ifaddr 43 7K 8K 166960K 94 0 ifgroup 55 2K 3K 166960K 165 0 sysctl 4 1K 2K 166960K 5 0 counters 64 36K 37K 166960K 420 0 ioctlops 0 0K 4K 166960K 1768 0 iov 0 0K 20K 166960K 61 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1392 88K 88K 166960K 2552 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 31 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 85 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 1278 0 sigio 1 0K 0K 166960K 21 0 proc 73 91K 128K 166960K 694 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 138 0 in_multi 96 7K 7K 166960K 150 0 ether_multi 1 0K 0K 166960K 11 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 115 519K 519K 166960K 115 0 exec 0 0K 1K 166960K 727 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 248 73K 87K 166960K 13729 0 UVM aobj 42 2K 4K 166960K 49 0 pinsyscall 42 84K 102K 166960K 2369 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 66 0 NDP 12 0K 2K 166960K 61 0 temp 76 8692K 8793K 166960K 51040 0 kqueue 13 20K 28K 166960K 210 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 120 158 0 154 1 0 1 1 0 8 0 rtentry 112 147 0 46 4 0 4 4 0 8 0 unpcb 144 841 0 823 6 5 1 6 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 808 426 0 422 16 15 1 8 0 8 0 arp 120 24 0 5 1 0 1 1 0 8 0 inpcb 376 1272 0 1261 26 24 2 8 0 8 0 nd6 136 30 0 3 1 0 1 1 0 8 0 pkpcb 40 13 0 13 5 4 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 3 0 3 1 1 0 1 0 8 0 ppxss 1168 160 0 160 5 4 1 1 0 8 1 pppxif 1480 139 0 139 3 3 0 1 0 8 0 pffrag 232 8 0 3 1 0 1 1 0 482 0 pffrnode 88 6 0 2 1 0 1 1 0 8 0 pffrent 40 13 0 7 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 5 0 3 1 0 1 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pfstitem 24 106 0 45 1 0 1 1 0 8 0 pfstkey 128 106 0 45 3 0 3 3 0 8 0 pfstate 376 105 0 45 8 0 8 8 0 8 0 pfrule 1344 30 0 21 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 553 0 132 31 1 30 30 0 8 1 art_table 32 555 0 132 4 0 4 4 0 8 0 art_node 16 139 0 49 1 0 1 1 0 8 0 sysvmsgpl 40 49 0 9 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 83 0 73 1 0 1 1 0 8 0 shmpl 112 46 0 7 2 0 2 2 0 8 0 dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 3712 0 2208 95 0 95 95 0 8 0 ffsino 280 3712 0 2208 109 0 109 109 0 8 0 nchpl 144 5577 0 3889 63 0 63 63 0 8 0 rtmask 32 1 0 1 1 1 0 1 0 8 0 uvmvnodes 80 4594 0 0 94 0 94 94 0 8 0 vnodes 216 4594 0 0 256 0 256 256 0 8 0 namei 1024 19826 0 19825 5 4 1 1 0 8 0 percpumem 16 224 0 178 1 0 1 1 0 8 0 pfiaddrpl 120 3 0 2 1 0 1 1 0 8 0 kstatmem 264 86 0 62 4 2 2 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 17082 0 17082 14 13 1 8 1 8 1 plimitpl 152 305 0 287 1 0 1 1 0 8 0 sigapl 424 1585 0 1514 10 1 9 9 0 8 0 futexpl 64 17821 0 17814 1 0 1 1 0 8 0 knotepl 120 582 0 0 17 0 17 17 0 8 0 kqueuepl 216 406 0 397 4 3 1 3 0 8 0 pipepl 328 242 0 213 3 0 3 3 0 8 0 fdescpl 504 1543 0 1512 5 0 5 5 0 8 0 filepl 152 10117 0 9888 24 10 14 14 0 8 3 lockfpl 104 495 0 492 1 0 1 1 0 8 0 lockfspl 48 167 0 164 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 46 0 29 1 0 1 1 0 8 0 ucredpl 104 1538 0 1522 1 0 1 1 0 8 0 zombiepl 144 1788 0 1787 1 0 1 1 0 8 0 processpl 1176 1585 0 1514 6 0 6 6 0 8 0 procpl 656 3552 0 3470 8 0 8 8 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 10 0 10 5 5 0 1 0 8 0 sockpl 688 2296 0 2264 31 27 4 16 0 8 0 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 113 0 0 15 0 15 15 0 8 0 mcl2k 2048 33 0 0 4 0 4 4 0 8 0 mtagpl 96 207 0 0 6 0 6 6 0 8 0 mbufpl 256 474 0 0 30 0 30 30 0 8 0 bufpl 280 4909 0 136 341 0 341 341 0 8 0 anonpl 24 203122 0 198787 78 40 38 39 0 184 11 amapchunkpl 152 56964 0 56360 56 17 39 39 0 158 15 amappl16 200 3383 0 3343 13 9 4 7 0 8 0 amappl15 192 2 0 2 1 1 0 1 0 8 0 amappl14 184 116 0 104 1 0 1 1 0 8 0 amappl13 176 4 0 4 1 1 0 1 0 8 0 amappl12 168 2203 0 2170 3 1 2 2 0 8 0 amappl11 160 49 0 35 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 341 0 341 2 2 0 1 0 8 0 amappl8 136 22 0 19 1 0 1 1 0 8 0 amappl7 128 110 0 97 1 0 1 1 0 8 0 amappl6 120 195 0 192 1 0 1 1 0 8 0 amappl5 112 126 0 116 1 0 1 1 0 8 0 amappl4 104 310 0 292 1 0 1 1 0 8 0 amappl3 96 8960 0 8836 4 0 4 4 0 8 0 amappl2 88 667 0 604 2 0 2 2 0 8 0 amappl1 80 11110 0 10540 14 1 13 14 0 8 0 amappl 88 13283 0 13091 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 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 48 0 7 1 0 1 1 0 8 0 uaddrrnd 24 1543 0 1511 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1543 0 1511 1 0 1 1 0 8 0 vmmpekpl 168 13964 0 13922 3 0 3 3 0 8 0 vmmpepl 168 97118 0 95176 97 11 86 89 0 357 1 vmsppl 456 1542 0 1511 6 2 4 5 0 8 0 rwobjpl 64 30566 0 24968 92 1 91 91 0 8 0 pdppl 4096 3094 0 3022 102 30 72 84 0 8 0 pvpl 32 13691 0 0 111 0 111 111 0 265 0 pmappl 248 1542 0 1511 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 324 0 61 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace lf_advlock(ffff8000014cb060,0,fffffd806bdd5bf0,7,ffff80003c5f1c40,40) at lf_advlock+0x2f7 ls_ref sys/kern/vfs_lockf.c:138 [inline] lf_advlock(ffff8000014cb060,0,fffffd806bdd5bf0,7,ffff80003c5f1c40,40) at lf_advlock+0x2f7 sys/kern/vfs_lockf.c:278 VOP_ADVLOCK(fffffd805f601db8,fffffd806bdd5bf0,7,ffff80003c5f1c40,40) at VOP_ADVLOCK+0x87 sys/kern/vfs_vops.c:620 sys_fcntl(ffff8000ffffd200,ffff80003c5f1db0,ffff80003c5f1d00) at sys_fcntl+0x1277 sys/kern/kern_descrip.c:613 syscall(ffff80003c5f1db0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5f1db0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd2335321b70, count: -5 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029aabff0) 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(ffff800029aabff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -5