*cpu1: uvm_fault(0xfffffd806c5175d8, 0x98, 0, 1) -> e ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x7a8c45cf4560, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800032ba2960 rbx 0 rdx 0 rcx 0xffff8000fffe8fb0 rax 0x3b r8 0xffff800032ba2890 r9 0 r10 0x3a2fbc5438e6352b r11 0xef306403845e4fe9 r12 0 r13 0 r14 0xffff8000fffe8fb0 r15 0 rip 0xffffffff8204a3ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff800032ba28e0 ss 0x10 savectx+0xae: movl $0,%gs:0x688 ddb{0}> show proc PROC (syz-executor) tid=82247 pid=75252 tcnt=2 stat=onproc flags process=10 proc=0 runpri=50, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffe82b8,0xffff8000fffe8a90 process=0xffff80003c44ce98 user=0xffff800032b9d000, vmspace=0xfffffd806c517b90 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 72512 364299 59921 0 2 0 syz-executor 72512 23372 59921 0 7 0x4000000 syz-executor 72512 360081 59921 0 3 0x4000080 fsleep syz-executor *75252 82247 35593 60929 7 0x10 syz-executor 75252 474935 35593 60929 3 0x4000090 fsleep syz-executor 61780 234792 36338 0 2 0 syz-executor 61780 115384 36338 0 3 0x4000080 fsleep syz-executor 13585 511625 33503 0 2 0 syz-executor 13585 332971 33503 0 3 0x4000080 ttyretype syz-executor 13585 414860 33503 0 3 0x4000080 fsleep syz-executor 36511 443867 94088 0 2 0 syz-executor 36511 185001 94088 0 3 0x4000080 fsleep syz-executor 74550 351839 92812 0 3 0x90 nanoslp syz-executor 74550 508017 92812 0 3 0x4000090 ttyout syz-executor 74550 214810 92812 0 3 0x4000090 ttyout syz-executor 74550 278004 92812 0 3 0x4000090 fsleep syz-executor 65298 464765 90039 0 2 0 syz-executor 65298 169065 90039 0 3 0x4000080 fsleep syz-executor 65298 197861 90039 0 3 0x4000080 fsleep syz-executor 31113 67454 0 0 3 0x14280 nfsidl nfsio 70407 13447 0 0 3 0x14280 nfsidl nfsio 36143 58465 0 0 3 0x14280 nfsidl nfsio 93692 341856 0 0 3 0x14280 nfsidl nfsio 39456 325869 0 0 3 0x14280 nfsidl nfsio 61405 34283 0 0 3 0x14280 nfsidl nfsio 4078 100500 0 0 3 0x14280 nfsidl nfsio 48635 516848 0 0 3 0x14280 nfsidl nfsio 93171 72628 0 0 3 0x14280 nfsidl nfsio 60104 124666 0 0 3 0x14280 nfsidl nfsio 26442 372377 0 0 3 0x14280 nfsidl nfsio 9473 449492 0 0 3 0x14280 nfsidl nfsio 55567 94805 0 0 3 0x14280 nfsidl nfsio 50019 117924 0 0 3 0x14280 nfsidl nfsio 89720 174382 0 0 3 0x14280 nfsidl nfsio 80484 113028 0 0 3 0x14280 nfsidl nfsio 57265 180684 0 0 3 0x14280 nfsidl nfsio 64375 295170 0 0 3 0x14280 nfsidl nfsio 34989 291414 0 0 3 0x14280 nfsidl nfsio 9648 126932 0 0 3 0x14280 nfsidl nfsio 94088 478698 73860 0 3 0x82 nanoslp syz-executor 92812 8829 73860 0 3 0x82 nanoslp syz-executor 59921 151223 73860 0 3 0x82 nanoslp syz-executor 33503 459460 73860 0 3 0x82 nanoslp syz-executor 53426 464981 73860 0 3 0x82 nanoslp syz-executor 90039 112879 73860 0 3 0x82 nanoslp syz-executor 36338 307000 73860 0 3 0x82 nanoslp syz-executor 35593 77162 73860 0 3 0x82 nanoslp syz-executor 73860 523922 63474 0 3 0x82 kqread syz-executor 63474 76921 12730 0 3 0x10008a sigsusp ksh 12730 155024 34228 0 3 0x98 kqread sshd-session 34228 47442 45776 0 3 0x92 kqread sshd-session 8536 120943 1 0 3 0x100083 ttyin getty 45776 87139 1 0 3 0x88 kqread sshd 36002 32826 83126 74 3 0x1100092 bpf pflogd 83126 296251 1 0 3 0x80 sbwait pflogd 70861 288163 94403 73 3 0x1100090 kqread syslogd 94403 9329 1 0 3 0x100082 sbwait syslogd 22481 262143 1 0 3 0x100080 kqread resolvd 57281 432391 4516 77 3 0x100092 kqread dhcpleased 25504 491640 4516 77 3 0x100092 kqread dhcpleased 4516 85988 1 0 3 0x80 kqread dhcpleased 94877 431420 0 0 3 0x14200 bored smr 65092 97578 0 0 2 0x14200 zerothread 79745 390699 0 0 3 0x14200 aiodoned aiodoned 54677 117315 0 0 3 0x14200 syncer update 25486 387889 0 0 3 0x14200 cleaner cleaner 92246 261919 0 0 3 0x14200 reaper reaper 25556 179712 0 0 3 0x14200 pgdaemon pagedaemon 60605 468596 0 0 3 0x14200 bored viomb 30643 28577 0 0 3 0x40014200 acpi0 acpi0 87442 12995 0 0 3 0x40014200 idle1 36618 83887 0 0 3 0x14200 bored softnet1 56271 294317 0 0 3 0x14200 bored softnet0 30639 518888 0 0 3 0x14200 bored systqmp 65235 130827 0 0 3 0x14200 bored systq 79399 316888 0 0 3 0x14200 tmoslp softclockmp 57098 130416 0 0 3 0x40014200 tmoslp softclock 16430 368174 0 0 3 0x40014200 idle0 1 138665 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806c516010) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 pmap_write_protect+0x80 rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #2 pmap_write_protect+0x80 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #2 pmap_write_protect+0x80 sys/arch/amd64/amd64/pmap.c:2166 #3 uvm_map_protect+0xb95 pmap_protect sys/arch/amd64/compile/SYZKALLER/obj/machine/pmap.h:476 [inline] #3 uvm_map_protect+0xb95 sys/uvm/uvm_map.c:3202 #4 sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #6 Xsyscall+0x128 Process 72512 (syz-executor) thread 0xffff80003c468a90 (23372) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839fcf40) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] #1 syscall+0xaf4 sys/arch/amd64/amd64/trap.c:783 #2 Xsyscall+0x128 Process 75252 (syz-executor) thread 0xffff8000fffe8fb0 (82247) exclusive rwlock uobjlk r = 0 (0xfffffd806d42fab8) #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 uvm_map_protect+0xb36 sys/uvm/uvm_map.c:3202 #3 sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590 #4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #5 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xfffffd806c517c90) #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 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5171 #3 uvm_map_protect+0xe0 sys/uvm/uvm_map.c:3075 #4 sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #6 Xsyscall+0x128 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806c516010) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 pmap_write_protect+0x80 rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #2 pmap_write_protect+0x80 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #2 pmap_write_protect+0x80 sys/arch/amd64/amd64/pmap.c:2166 #3 uvm_map_protect+0xb95 pmap_protect sys/arch/amd64/compile/SYZKALLER/obj/machine/pmap.h:476 [inline] #3 uvm_map_protect+0xb95 sys/uvm/uvm_map.c:3202 #4 sys_mprotect+0x351 sys/uvm/uvm_mmap.c:590 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #6 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11071 12153K 12243K 166960K 12199 0 pcb 18 13K 13K 166960K 49 0 rtable 237 6K 7K 166960K 351 0 pf 37 18K 24K 166960K 63 0 ifaddr 44 7K 7K 166960K 46 0 ifgroup 60 2K 2K 166960K 60 0 sysctl 3 1K 9K 166960K 8 0 counters 72 37K 37K 166960K 72 0 ioctlops 0 0K 4K 166960K 1486 0 iov 0 0K 12K 166960K 4 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1291 81K 81K 166960K 1453 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 7 0K 0K 166960K 7 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 89K 166960K 191 0 sigio 1 0K 0K 166960K 1 0 proc 76 163K 164K 166960K 558 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 11 0 in_multi 99 7K 7K 166960K 101 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 386 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 253 161K 170K 166960K 3666 0 UVM aobj 4 2K 2K 166960K 4 0 pinsyscall 43 86K 104K 166960K 1351 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1 0 NDP 19 0K 2K 166960K 29 0 temp 37 9078K 9143K 166960K 4573 0 kqueue 13 20K 24K 166960K 31 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 34 0 30 1 0 1 1 0 8 0 rtentry 176 111 0 1 5 0 5 5 0 8 0 unpcb 144 55 0 37 1 0 1 1 0 8 0 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpcb 736 19 0 14 1 0 1 1 0 8 0 arp 136 18 0 0 1 0 1 1 0 8 0 inpcb 328 153 0 143 4 0 4 4 0 8 3 nd6 152 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 1 0 0 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 pfanchor 1288 4 0 0 1 0 1 1 0 8 0 pfstitem 24 18 0 0 1 0 1 1 0 8 0 pfstkey 128 18 0 0 1 0 1 1 0 8 0 pfstate 448 18 0 0 2 0 2 2 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 451 0 0 29 0 29 29 0 8 0 art_table 40 452 0 0 5 0 5 5 0 8 0 art_node 32 111 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semapl 112 5 0 0 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1719 0 246 93 0 93 93 0 8 0 ffsino 296 1719 0 246 114 0 114 114 0 8 0 nchpl 144 1996 0 286 64 0 64 64 0 8 0 vnodes 216 1823 0 0 102 0 102 102 0 8 0 namei 1024 6194 0 6194 1 0 1 1 0 8 1 percpumem 16 51 0 0 1 0 1 1 0 8 0 kstatmem 264 29 0 0 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 6361 0 6361 4 1 3 3 1 8 3 plimitpl 152 33 0 12 1 0 1 1 0 8 0 sigapl 424 528 0 460 8 0 8 8 0 8 0 knotepl 120 293 0 0 9 0 9 9 0 8 0 kqueuepl 224 63 0 53 3 0 3 3 0 8 2 pipepl 344 125 0 97 3 0 3 3 0 8 0 fdescpl 528 492 0 460 3 0 3 3 0 8 0 filepl 160 2086 0 1854 13 0 13 13 0 8 2 lockfpl 104 27 0 25 1 0 1 1 0 8 0 lockfspl 48 14 0 12 1 0 1 1 0 8 0 sessionpl 144 26 0 16 1 0 1 1 0 8 0 pgrppl 48 34 0 16 1 0 1 1 0 8 0 ucredpl 104 338 0 322 1 0 1 1 0 8 0 zombiepl 144 461 0 460 1 0 1 1 0 8 0 processpl 1232 528 0 460 6 0 6 6 0 8 0 procpl 664 627 0 547 7 0 7 7 0 8 0 sockpl 752 244 0 212 8 0 8 8 0 8 4 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 126 0 0 16 0 16 16 0 8 0 mcl2k 2048 18 0 0 3 0 3 3 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 156 0 0 10 0 10 10 0 8 0 bufpl 280 2358 0 105 161 0 161 161 0 8 0 anonpl 32 7456 0 0 61 0 61 61 0 246 0 amapchunkpl 152 10613 0 9946 26 0 26 26 0 158 0 amappl16 200 2318 0 2292 10 0 10 10 0 8 8 amappl15 192 7 0 5 1 0 1 1 0 8 0 amappl14 184 433 0 432 1 0 1 1 0 8 0 amappl13 176 121 0 109 1 0 1 1 0 8 0 amappl12 168 745 0 714 2 0 2 2 0 8 0 amappl11 160 36 0 36 1 0 1 1 0 8 1 amappl10 152 71 0 57 1 0 1 1 0 8 0 amappl9 144 269 0 269 1 0 1 1 0 8 1 amappl8 136 104 0 102 1 0 1 1 0 8 0 amappl7 128 148 0 134 1 0 1 1 0 8 0 amappl6 120 166 0 165 1 0 1 1 0 8 0 amappl5 112 120 0 110 1 0 1 1 0 8 0 amappl4 104 299 0 279 1 0 1 1 0 8 0 amappl3 96 1852 0 1724 4 0 4 4 0 8 0 amappl2 88 551 0 486 2 0 2 2 0 8 0 amappl1 80 10601 0 9999 16 0 16 16 0 8 0 amappl 88 2916 0 2735 5 0 5 5 0 92 0 uvmvnodes 80 101 0 0 3 0 3 3 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 1 1 1 0 8 1 dma128 128 254 0 254 2 1 1 1 0 8 1 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 492 0 460 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 492 0 460 1 0 1 1 0 8 0 vmmpekpl 168 6105 0 6069 2 0 2 2 0 8 0 vmmpepl 168 41647 0 39670 98 0 98 98 0 357 1 vmsppl 488 491 0 460 5 0 5 5 0 8 0 rwobjpl 80 15687 0 14633 26 0 26 26 0 8 0 pdppl 4096 991 0 920 95 18 77 83 0 8 6 pvpl 32 13581 0 0 111 1 110 111 0 265 0 pmappl 256 491 0 460 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 266 0 21 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x7a8c45cf4560, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299bdff0) 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 x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:682 acpitimer_delay(1) at acpitimer_delay+0xb7 acpitimer_read sys/dev/acpi/acpitimer.c:146 [inline] acpitimer_delay(1) at acpitimer_delay+0xb7 sys/dev/acpi/acpitimer.c:120 comcnputc(800,65) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(65) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(65) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83440981) at db_printf+0x9b sys/kern/subr_prf.c:-1 db_ktrap(6,0,ffff80003c4615a0) at db_ktrap+0x1b6 db_printtrap sys/arch/amd64/amd64/db_interface.c:103 [inline] db_ktrap(6,0,ffff80003c4615a0) at db_ktrap+0x1b6 sys/arch/amd64/amd64/db_interface.c:128 kerntrap(ffff80003c4615a0) at kerntrap+0x243 sys/arch/amd64/amd64/trap.c:519 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dovutimens(ffff80003c468a90,fffffd806c52f998,ffff80003c461780) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2771 end trace frame: 0xffff80003c4617f0, count: 0 ddb{1}> trace x86_ipi_db(ffff8000299bdff0) 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 x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:682 acpitimer_delay(1) at acpitimer_delay+0xb7 acpitimer_read sys/dev/acpi/acpitimer.c:146 [inline] acpitimer_delay(1) at acpitimer_delay+0xb7 sys/dev/acpi/acpitimer.c:120 comcnputc(800,65) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(65) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(65) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff83440981) at db_printf+0x9b sys/kern/subr_prf.c:-1 db_ktrap(6,0,ffff80003c4615a0) at db_ktrap+0x1b6 db_printtrap sys/arch/amd64/amd64/db_interface.c:103 [inline] db_ktrap(6,0,ffff80003c4615a0) at db_ktrap+0x1b6 sys/arch/amd64/amd64/db_interface.c:128 kerntrap(ffff80003c4615a0) at kerntrap+0x243 sys/arch/amd64/amd64/trap.c:519 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dovutimens(ffff80003c468a90,fffffd806c52f998,ffff80003c461780) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2771 sys_futimes(ffff80003c468a90,ffff80003c4618d0,ffff80003c461820) at sys_futimes+0x208 sys/kern/vfs_syscalls.c:2813 syscall(ffff80003c4618d0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4618d0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc0ef9060940, count: -17