kernel: protection fault trap, code=0 Stopped at witness_checkorder+0xb5: movl 0x20(%r14),%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 witness_checkorder(deadbeefdeadc017,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(deadbeefdeadc007) at mtx_enter+0x4a sys/kern/kern_lock.c:260 prsignal(deadbeefdeadbeef,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff8000ffffc2a0) at reaper+0x2cc sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -4 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002a2686f0 rbx 0 rdx 0 rcx 0xffff8000ffffc2a0 rax 0xffffffff837c7ffe cpu_info_full_primary+0x1ffe r8 0x3b9aca00 r9 0 r10 0x455335b8742cbede r11 0x5027f30aac43c5f4 r12 0xdeadbeefdeadbefe r13 0x9 r14 0xdeadbeefdeadc017 r15 0 rip 0xffffffff820d60b5 witness_checkorder+0xb5 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a268650 ss 0x10 witness_checkorder+0xb5: movl 0x20(%r14),%r15d ddb{0}> show proc PROC (reaper) tid=283063 pid=64631 tcnt=1 stat=onproc flags process=14000 proc=200 runpri=32, usrpri=51, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffffc7d0,0xffff8000ffffc018 process=0xffff8000ffff4008 user=0xffff80002a263000, vmspace=0xffffffff8397a928 estcpu=1, cpticks=7, pctcpu=0.1, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 90879 213651 9525 32767 2 0x10 syz-executor 90879 50598 9525 32767 2 0x4000010 syz-executor 65270 88606 45667 32767 2 0x10 syz-executor 65270 166204 45667 32767 3 0x4000090 fsleep syz-executor 2208 14715 0 0 3 0x14200 bored sosplice 31362 386198 31508 32767 2 0x90 syz-executor 45667 350350 48007 32767 3 0x90 nanoslp syz-executor 9525 167838 18192 32767 3 0x90 nanoslp syz-executor 19086 222876 8939 32767 2 0x90 syz-executor 28937 316488 31505 32767 2 0x10 syz-executor 96551 333059 59195 32767 3 0x90 nanoslp syz-executor 62870 44835 51840 32767 2 0x10 syz-executor 6620 262995 35824 32767 2 0x10 syz-executor 18192 317275 45385 0 3 0x82 wait syz-executor 8939 288115 45385 0 3 0x82 wait syz-executor 48007 389427 45385 0 3 0x82 wait syz-executor 31508 400310 45385 0 3 0x82 wait syz-executor 31505 298010 45385 0 3 0x82 wait syz-executor 51840 357269 45385 0 3 0x82 wait syz-executor 59195 349373 45385 0 3 0x82 wait syz-executor 35824 88332 45385 0 3 0x82 wait syz-executor 45385 226359 90188 0 3 0x82 kqread syz-executor 90188 278785 59913 0 3 0x10008a sigsusp ksh 59913 400893 86337 0 3 0x98 kqread sshd-session 86337 294492 19501 0 3 0x92 kqread sshd-session 66020 23668 1 0 3 0x100083 ttyin getty 19501 464924 1 0 3 0x88 kqread sshd 59102 15680 81760 73 3 0x1100090 kqread syslogd 81760 371939 1 0 3 0x100082 sbwait syslogd 55434 456354 1 0 3 0x100080 kqread resolvd 86600 129217 38703 77 3 0x100092 kqread dhcpleased 58563 480653 38703 77 3 0x100092 kqread dhcpleased 38703 486896 1 0 3 0x80 kqread dhcpleased 54451 26211 0 0 3 0x14200 bored smr 17017 144480 0 0 2 0x14200 zerothread 2996 376832 0 0 3 0x14200 aiodoned aiodoned 84688 136002 0 0 3 0x14200 syncer update 70054 442364 0 0 3 0x14200 cleaner cleaner *64631 283063 0 0 7 0x14200 reaper 42 454890 0 0 3 0x14200 pgdaemon pagedaemon 17389 516196 0 0 3 0x14200 bored viomb 49713 200260 0 0 3 0x40014200 acpi0 acpi0 10185 497910 0 0 3 0x40014200 idle1 76447 68120 0 0 3 0x14200 bored softnet7 27714 131692 0 0 3 0x14200 bored softnet6 55235 350108 0 0 3 0x14200 bored softnet5 28468 111092 0 0 3 0x14200 bored softnet4 81470 143441 0 0 3 0x14200 bored softnet3 66888 171280 0 0 3 0x14200 bored softnet2 79399 195167 0 0 3 0x14200 bored softnet1 51835 26816 0 0 2 0x14200 softnet0 10350 512821 0 0 3 0x14200 bored systqmp 63088 389218 0 0 3 0x14200 bored systq 56138 2932 0 0 3 0x14200 tmoslp softclockmp 76376 430898 0 0 2 0x40014200 softclock 26341 503317 0 0 3 0x40014200 idle0 1 396725 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 28937 (syz-executor) thread 0xffff80002a2e54e0 (316488) exclusive rrwlock inode r = 0 (0xfffffd806ba51450) #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 (0xfffffd806d300a08) #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 62870 (syz-executor) thread 0xffff8000ffff2a70 (44835) exclusive rrwlock inode r = 0 (0xfffffd806ba510d8) #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 (0xfffffd806ba480e0) #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 cache_lookup+0x351 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #10 namei+0x7ca sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #12 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #13 Xsyscall+0x128 Process 6620 (syz-executor) thread 0xffff8000ffff3238 (262995) exclusive rrwlock inode r = 0 (0xfffffd806ba518f0) #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 (0xfffffd806d300d80) #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 64631 (reaper) thread 0xffff8000ffffc2a0 (283063) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83949718) #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 sleep_finish+0x2d8 sys/kern/kern_synch.c:367 #3 rw_do_enter_write+0x1dc sys/kern/kern_rwlock.c:298 #4 knote_processexit+0x2b sys/kern/kern_event.c:2217 #5 reaper+0x24d sys/kern/kern_exit.c:513 #6 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10221 10960K 10968K 166960K 11301 0 pcb 17 12K 12K 166960K 17 0 rtable 211 6K 6K 166960K 270 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 2 1K 9K 166960K 6 0 counters 68 36K 36K 166960K 68 0 ioctlops 0 0K 2K 166960K 37 0 iov 0 0K 2K 166960K 8 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1334 84K 84K 166960K 1365 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 76 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 20 73K 121K 166960K 273 0 sigio 0 0K 0K 166960K 6 0 proc 58 99K 147K 166960K 510 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 29 0 in_multi 99 7K 7K 166960K 109 0 ether_multi 1 0K 0K 166960K 3 0 mrt 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 355 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 201 158K 178K 166960K 3937 0 UVM aobj 9 2K 2K 166960K 9 0 pinsyscall 41 82K 108K 166960K 1285 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 13 0 NDP 11 0K 2K 166960K 27 0 temp 38 8642K 8706K 166960K 4226 0 kqueue 14 20K 24K 166960K 53 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 59 0 55 1 0 1 1 0 8 0 rtentry 176 99 0 2 5 0 5 5 0 8 0 unpcb 144 155 0 131 2 0 2 2 0 8 1 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 134 0 129 7 0 7 7 0 8 6 arp 128 10 0 0 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 328 316 0 307 7 0 7 7 0 8 5 ip6q 72 1 0 0 1 0 1 1 0 8 0 ip6af 40 1 0 0 1 0 1 1 0 8 0 nd6 144 20 0 1 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 443 0 3 28 0 28 28 0 8 0 art_table 40 444 0 3 5 0 5 5 0 8 0 art_node 32 99 0 12 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 73 0 66 1 0 1 1 0 8 0 shmpl 112 6 0 0 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 1739 0 234 95 0 95 95 0 8 0 ffsino 296 1739 0 234 117 0 117 117 0 8 0 nchpl 144 2117 0 447 63 0 63 63 0 8 0 uvmvnodes 80 1820 0 0 38 0 38 38 0 8 0 vnodes 216 1820 0 0 102 0 102 102 0 8 0 namei 1024 6504 0 6504 1 0 1 1 0 8 1 percpumem 16 49 0 0 1 0 1 1 0 8 0 kstatmem 264 24 0 0 2 0 2 2 0 8 0 scxspl 216 7649 0 7649 7 1 6 6 1 8 6 plimitpl 152 94 0 70 2 0 2 2 0 8 1 sigapl 424 553 0 497 8 0 8 8 0 8 1 knotepl 120 323 0 0 10 0 10 10 0 8 0 kqueuepl 224 71 0 60 2 0 2 2 0 8 1 pipepl 344 115 0 88 3 0 3 3 0 8 0 fdescpl 528 530 0 498 3 0 3 3 0 8 0 filepl 160 2462 0 2243 13 0 13 13 0 8 3 lockfpl 104 148 0 146 1 0 1 1 0 8 0 lockfspl 48 14 0 12 1 0 1 1 0 8 0 sessionpl 144 23 0 7 1 0 1 1 0 8 0 pgrppl 48 35 0 11 1 0 1 1 0 8 0 ucredpl 104 391 0 372 1 0 1 1 0 8 0 zombiepl 144 498 0 497 1 0 1 1 0 8 0 processpl 1248 553 0 497 7 1 6 6 0 8 0 procpl 664 781 0 722 7 0 7 7 0 8 0 sosppl 168 4 0 4 1 0 1 1 0 8 1 sockpl 752 532 0 495 11 0 11 11 0 8 6 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 117 0 0 15 0 15 15 0 8 0 mcl2k 2048 19 0 0 3 0 3 3 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 244 0 0 16 0 16 16 0 8 0 bufpl 280 3036 0 116 209 0 209 209 0 8 0 anonpl 32 7657 0 0 62 0 62 62 0 246 0 amapchunkpl 152 11725 0 11326 38 3 35 35 0 158 13 amappl16 200 954 0 937 15 1 14 14 0 8 11 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 103 0 93 1 0 1 1 0 8 0 amappl13 176 1 0 1 1 1 0 1 0 8 0 amappl12 168 1131 0 1099 2 0 2 2 0 8 0 amappl11 160 43 0 33 1 0 1 1 0 8 0 amappl10 152 3 0 3 2 1 1 1 0 8 1 amappl9 144 271 0 271 1 1 0 1 0 8 0 amappl8 136 23 0 22 1 0 1 1 0 8 0 amappl7 128 104 0 94 1 0 1 1 0 8 0 amappl6 120 192 0 188 1 0 1 1 0 8 0 amappl5 112 113 0 107 1 0 1 1 0 8 0 amappl4 104 263 0 248 1 0 1 1 0 8 0 amappl3 96 2091 0 1995 4 0 4 4 0 8 0 amappl2 88 608 0 552 2 0 2 2 0 8 0 amappl1 80 8777 0 8215 14 0 14 14 0 8 0 amappl 88 3284 0 3147 5 0 5 5 0 92 1 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 8 0 0 1 0 1 1 0 8 0 uaddrrnd 24 530 0 498 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 530 0 498 1 0 1 1 0 8 0 vmmpekpl 168 5889 0 5850 2 0 2 2 0 8 0 vmmpepl 168 39022 0 37198 104 0 104 104 0 357 2 vmsppl 488 529 0 497 7 1 6 6 0 8 1 rwobjpl 80 14372 0 11757 60 0 60 60 0 8 1 pdppl 4096 1068 0 994 112 28 84 96 0 8 10 pvpl 32 15602 0 0 126 0 126 126 0 265 0 pmappl 256 529 0 497 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 291 0 31 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace witness_checkorder(deadbeefdeadc017,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(deadbeefdeadc007) at mtx_enter+0x4a sys/kern/kern_lock.c:260 prsignal(deadbeefdeadbeef,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff8000ffffc2a0) at reaper+0x2cc sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -4 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 __mp_lock(ffffffff83949510) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83949510) at __mp_lock+0x192 sys/kern/kern_lock.c:165 exit1(ffff80003c4402c0,0,0,1) at exit1+0x701 sys/kern/kern_exit.c:260 sys_exit(ffff80003c4402c0,ffff80003c499ad0,ffff80003c499a20) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c499ad0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c499ad0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f01e95713f0, count: -8