uvm_fault(fffffd807efff8a0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efff8a0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021fbcd90,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021fbcd90) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800021fb6ec8,ffff800021fbcf58,ffff800021fbcfa0) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021fbd020) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021fbd020) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x494f0003290, count: 243 End of stack trace. Stopped at db_enter+0x18: addq $0x8,%rsp 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+0x18 sys/arch/amd64/amd64/db_interface.c:398 yield() at yield+0x77 sys/kern/sched_bsd.c:304 pool_get(ffffffff828b6578,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd807efff8a0,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807efff8a0,fffffd807ea63180,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efff8a0,fffffd807ea63180,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807efff8a0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efff8a0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021fbcd90,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021fbcd90) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800021fb6ec8,ffff800021fbcf58,ffff800021fbcfa0) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021fbd020) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021fbd020) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x494f0003290, count: -14 ddb{0}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff800021fbc810 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff80002311a000 rax 0xffff800000aec140 r8 0xffffffff821c2b4f kprintf+0x16f r9 0x1 r10 0x2 r11 0x6309c337c89fbd42 r12 0x1 r13 0xfffffd80687752f8 r14 0xffff800021fb6ec8 r15 0x3 rip 0xffffffff811a3778 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800021fbc800 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.1) pid=273180 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800021fb7af8,0xffff800021fb69f8 process=0xffff8000213127e0 user=0xffff800021fb8000, vmspace=0xfffffd807efff8a0 estcpu=36, cpticks=15, pctcpu=0.0 user=0, sys=15, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 55660 27379 14492 0 2 0 syz-executor.0 94123 437194 89396 0 2 0 syz-executor.1 *94123 273180 89396 0 7 0x4000000 syz-executor.1 55555 386013 0 0 3 0x14200 acct acct 30314 55146 1 0 2 0x100083 getty 96397 103997 0 0 3 0x14280 nfsidl nfsio 5743 482841 0 0 3 0x14280 nfsidl nfsio 57520 100021 0 0 3 0x14280 nfsidl nfsio 50312 478229 0 0 3 0x14280 nfsidl nfsio 27409 175103 0 0 3 0x14280 nfsidl nfsio 3632 392583 0 0 3 0x14280 nfsidl nfsio 44865 335492 0 0 3 0x14280 nfsidl nfsio 78776 138691 0 0 3 0x14280 nfsidl nfsio 84877 475789 0 0 3 0x14280 nfsidl nfsio 37431 523429 0 0 3 0x14280 nfsidl nfsio 42193 90241 0 0 3 0x14280 nfsidl nfsio 53016 103388 0 0 3 0x14280 nfsidl nfsio 99052 516523 0 0 3 0x14280 nfsidl nfsio 94827 145716 0 0 3 0x14280 nfsidl nfsio 59327 317816 0 0 3 0x14280 nfsidl nfsio 17834 418155 0 0 3 0x14280 nfsidl nfsio 13781 23247 0 0 3 0x14280 nfsidl nfsio 35083 37348 0 0 3 0x14280 nfsidl nfsio 2812 381762 0 0 3 0x14280 nfsidl nfsio 74194 76202 0 0 3 0x14280 nfsidl nfsio 94477 383032 0 0 3 0x14200 bored sosplice 89396 399064 79694 0 2 0x482 syz-executor.1 14492 25264 79694 0 2 0x482 syz-executor.0 79694 475868 90406 0 3 0x82 thrsleep syz-fuzzer 79694 255954 90406 0 2 0x4000482 syz-fuzzer 79694 515999 90406 0 3 0x4000082 thrsleep syz-fuzzer 79694 523693 90406 0 2 0x4000482 syz-fuzzer 79694 413750 90406 0 3 0x4000082 thrsleep syz-fuzzer 79694 346135 90406 0 3 0x4000082 thrsleep syz-fuzzer 79694 392772 90406 0 3 0x4000082 thrsleep syz-fuzzer 79694 315576 90406 0 3 0x4000082 kqread syz-fuzzer 79694 92398 90406 0 3 0x4000082 thrsleep syz-fuzzer 79694 445473 90406 0 3 0x4000082 thrsleep syz-fuzzer 90406 392840 28807 0 3 0x10008a pause ksh 28807 293321 65029 0 3 0x92 select sshd 65029 11172 1 0 3 0x80 select sshd 18176 132521 92870 74 3 0x100092 bpf pflogd 92870 336920 1 0 3 0x80 netio pflogd 18480 435572 2529 73 7 0x100090 syslogd 2529 206310 1 0 3 0x100082 netio syslogd 91728 257996 1 77 3 0x100090 poll dhclient 44540 508658 1 0 3 0x80 poll dhclient 44484 390041 0 0 3 0x14200 bored smr 11037 211803 0 0 3 0x14200 pgzero zerothread 62602 237987 0 0 3 0x14200 aiodoned aiodoned 56824 82858 0 0 3 0x14200 syncer update 11210 485779 0 0 3 0x14200 cleaner cleaner 76832 367798 0 0 3 0x14200 reaper reaper 60906 331134 0 0 3 0x14200 pgdaemon pagedaemon 45131 497208 0 0 3 0x14200 bored crynlk 8412 243674 0 0 3 0x14200 bored crypto 34483 16710 0 0 3 0x40014200 acpi0 acpi0 34991 8367 0 0 3 0x40014200 idle1 14023 464489 0 0 3 0x14200 bored softnet 20976 247694 0 0 3 0x14200 bored systqmp 12286 113059 0 0 3 0x14200 bored systq 66394 121020 0 0 2 0x40014200 softclock 6186 158370 0 0 3 0x40014200 idle0 1 382439 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 94123 (syz-executor.1) thread 0xffff800021fb6ec8 (273180) exclusive rwlock vmmaplk r = 0 (0xfffffd807efff8b8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 vm_map_lock_ln+0x111 sys/uvm/uvm_map.c:5445 #3 uvmfault_lookup+0xbe sys/uvm/uvm_fault.c:1442 #4 uvm_fault+0xbbd uvmfault_amapcopy sys/uvm/uvm_fault.c:232 [inline] #4 uvm_fault+0xbbd sys/uvm/uvm_fault.c:559 #5 pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 #6 kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 #7 alltraps_kern_meltdown+0x7b #8 copyin+0x4b #9 sys_connect+0x9b sys/kern/uipc_syscalls.c:360 #10 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #11 Xsyscall+0x128 exclusive rwlock netlock r = 0 (0xffffffff82707e28) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x5a sys/kern/uipc_socket2.c:282 #2 sys_connect+0x6a sys/kern/uipc_syscalls.c:355 #3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82899198) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:93 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:570 #2 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9513 6410K 7240K 78643K 11391 0 pcb 13 8K 8K 78643K 64 0 rtable 99 3K 6K 78643K 374 0 ifaddr 65 12K 14K 78643K 124 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 47 0 ioctlops 0 0K 4K 78643K 1522 0 iov 0 0K 12K 78643K 50 0 mount 1 1K 1K 78643K 1 0 vnodes 1225 77K 77K 78643K 1448 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 76 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 300 0 sigio 0 0K 0K 78643K 10 0 proc 61 63K 95K 78643K 493 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 21 0 in_multi 32 2K 2K 78643K 85 0 ether_multi 1 0K 0K 78643K 8 0 mrt 0 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 230 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 115 54K 55K 78643K 1974 0 UVM aobj 14 2K 2K 78643K 16 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 46 0 NDP 11 0K 0K 78643K 22 0 temp 121 3852K 3916K 78643K 3201 0 kqueue 4 6K 10K 78643K 14 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 11 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 47 0 45 1 0 1 1 0 8 0 rtentry 112 72 0 33 2 0 2 2 0 8 0 unpcb 120 174 0 164 1 0 1 1 0 8 0 syncache 264 10 0 10 2 2 0 1 0 8 0 tcpqe 32 146 0 146 2 2 0 1 0 8 0 tcpcb 544 141 0 137 1 0 1 1 0 8 0 inpcb 280 516 0 508 3 2 1 2 0 8 0 nd6 48 11 0 9 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 7 0 7 3 2 1 1 0 482 1 pffrnode 88 7 0 7 3 2 1 1 0 8 1 pffrent 40 102 0 102 3 2 1 1 0 8 1 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 26 0 26 2 2 0 1 0 8 0 pftag 88 4 0 4 1 1 0 1 0 8 0 pfstitem 24 34 0 3 1 0 1 1 0 8 0 pfstkey 112 34 0 3 1 0 1 1 0 8 0 pfstate 328 34 0 3 3 0 3 3 0 8 0 pfrule 1360 31 0 24 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 273 0 110 13 2 11 13 0 8 0 art_table 32 274 0 110 2 0 2 2 0 8 0 art_node 16 71 0 36 1 0 1 1 0 8 0 sysvmsgpl 40 32 0 23 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 72 0 62 1 0 1 1 0 8 0 shmpl 112 14 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1797 0 389 89 0 89 89 0 8 0 ffsino 272 1797 0 389 95 0 95 95 0 8 0 nchpl 144 2406 0 809 60 0 60 60 0 8 0 uvmvnodes 72 2021 0 0 37 0 37 37 0 8 0 vnodes 208 2021 0 0 107 0 107 107 0 8 0 namei 1024 6642 0 6642 4 3 1 1 0 8 1 percpumem 16 34 0 2 1 0 1 1 0 8 0 vcpupl 1984 4 0 0 1 0 1 1 0 8 0 vmpool 560 8 0 4 1 0 1 1 0 8 0 pfiaddrpl 120 6 0 6 2 2 0 1 0 8 0 scxspl 192 7247 0 7247 9 8 1 5 0 8 1 plimitpl 152 35 0 27 1 0 1 1 0 8 0 sigapl 424 538 0 484 8 1 7 7 0 8 0 futexpl 56 4657 0 4657 4 3 1 1 0 8 1 knotepl 112 77 0 58 1 0 1 1 0 8 0 kqueuepl 144 44 0 39 1 0 1 1 0 8 0 pipelkpl 48 102 0 92 1 0 1 1 0 8 0 pipepl 120 204 0 185 1 0 1 1 0 8 0 fdescpl 496 501 0 484 3 0 3 3 0 8 0 filepl 152 2979 0 2878 7 2 5 5 0 8 0 lockfpl 104 56 0 55 1 0 1 1 0 8 0 lockfspl 48 21 0 20 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 27 0 16 1 0 1 1 0 8 0 ucredpl 96 266 0 257 1 0 1 1 0 8 0 zombiepl 144 485 0 485 3 2 1 1 0 8 1 processpl 984 538 0 484 7 0 7 7 0 8 0 procpl 624 1203 0 1139 6 0 6 6 0 8 0 sosppl 128 15 0 15 2 2 0 1 0 8 0 sockpl 400 739 0 719 9 6 3 4 0 8 1 mcl64k 65536 9 0 0 2 0 2 2 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 8 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 169 0 0 21 0 21 21 0 8 0 mtagpl 80 97 0 0 2 0 2 2 0 8 0 mbufpl 256 538 0 0 34 0 34 34 0 8 0 bufpl 280 3983 0 133 275 0 275 275 0 8 0 anonpl 16 62411 0 46415 79 10 69 72 0 124 0 amapchunkpl 152 3097 0 2946 21 14 7 20 0 158 0 amappl16 192 2357 0 1448 54 8 46 49 0 8 0 amappl15 184 139 0 136 2 1 1 1 0 8 0 amappl14 176 153 0 148 1 0 1 1 0 8 0 amappl13 168 29 0 26 1 0 1 1 0 8 0 amappl12 160 142 0 138 1 0 1 1 0 8 0 amappl11 152 56 0 41 1 0 1 1 0 8 0 amappl10 144 23 0 16 1 0 1 1 0 8 0 amappl9 136 383 0 382 1 0 1 1 0 8 0 amappl8 128 358 0 331 1 0 1 1 0 8 0 amappl7 120 117 0 106 1 0 1 1 0 8 0 amappl6 112 25 0 22 1 0 1 1 0 8 0 amappl5 104 413 0 393 1 0 1 1 0 8 0 amappl4 96 497 0 464 1 0 1 1 0 8 0 amappl3 88 119 0 114 1 0 1 1 0 8 0 amappl2 80 3321 0 3250 2 0 2 2 0 8 0 amappl1 72 20971 0 20523 23 13 10 18 0 8 0 amappl 80 1447 0 1400 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 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 64 15 0 2 1 0 1 1 0 8 0 uaddrrnd 24 509 0 488 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 509 0 488 1 0 1 1 0 8 0 vmmpekpl 168 7993 0 7954 2 0 2 2 0 8 0 vmmpepl 168 68125 0 65982 119 24 95 108 0 357 1 vmsppl 368 508 0 488 2 0 2 2 0 8 0 pdppl 4096 1025 0 980 6 0 6 6 0 8 0 pvpl 32 201689 0 182397 198 34 164 179 0 265 0 pmappl 232 508 0 488 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 293 0 13 10 1 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 yield() at yield+0x77 sys/kern/sched_bsd.c:304 pool_get(ffffffff828b6578,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd807efff8a0,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807efff8a0,fffffd807ea63180,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807efff8a0,fffffd807ea63180,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807efff8a0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807efff8a0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021fbcd90,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021fbcd90) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800021fb6ec8,ffff800021fbcf58,ffff800021fbcfa0) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021fbd020) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021fbd020) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x494f0003290, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d80ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82898f90) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82898f90) at __mp_lock+0x127 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82898f90,2) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff800020e65640,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020e65640,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020e65640,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(fffffd806e914d80,118,ffffffff824473c9,7d3) at tsleep+0x1cc sys/kern/kern_synch.c:155 kqueue_sleep(fffffd806e914d80,ffff800020e65ad0) at kqueue_sleep+0x101 sys/kern/kern_event.c:884 kqueue_scan(fffffd806e914d80,40,1d6fac056800,ffff800020e65ad0,ffff800020e50eb0,ffff800020e65b1c) at kqueue_scan+0x2b6 sys/kern/kern_event.c:927 sys_kevent(ffff800020e50eb0,ffff800020e65b90,ffff800020e65be0) at sys_kevent+0x464 sys/kern/kern_event.c:639 syscall(ffff800020e65c60) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e65c60) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc0a50, count: -14