*cpu1: uvm_fault(0xffffffff838a5888, 0xffff8000014d102a, 0, 1) -> e ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x786320b45560, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff8000310aab40 rbx 0 rdx 0 rcx 0xffff80002f8a02b8 rax 0x32 r8 0xffff8000310aaa70 r9 0x2080713 __kernel_phys_base+0x1080713 r10 0x67a55369c0332ba r11 0xccd6bc351209813c r12 0 r13 0 r14 0xffff80002f8a02b8 r15 0 rip 0xffffffff82b2c3ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff8000310aaac0 ss 0 savectx+0xae: movl $0,%gs:0x680 ddb{0}> show proc PROC (syz-executor) tid=370055 pid=87016 tcnt=4 stat=onproc flags process=0 proc=0 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002f8a0cf8,0xffff80002f8a0038 process=0xffff80002f09bdc8 user=0xffff8000310a5000, vmspace=0xfffffd8064a21910 estcpu=36, cpticks=3, pctcpu=0.0, user=3, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 48337 464933 84257 0 2 0 syz-executor 48337 367593 84257 0 3 0x4000080 fsleep syz-executor 71570 521744 23075 0 2 0 syz-executor 71570 469476 23075 0 3 0x4000080 fsleep syz-executor *87016 370055 86335 0 7 0 syz-executor 87016 481249 86335 0 7 0x4000000 syz-executor 87016 306610 86335 0 2 0x4000000 syz-executor 87016 239556 86335 0 2 0x4000000 syz-executor 29920 442865 98815 0 2 0 syz-executor 29920 352235 98815 0 3 0x4000080 sbwait syz-executor 31484 101045 20973 0 2 0 syz-executor 31484 254584 20973 0 3 0x4000000 smrbar syz-executor 84776 117085 8884 0 2 0 syz-executor 84776 104803 8884 0 3 0x4000080 fsleep syz-executor 84776 30198 8884 0 3 0x4000080 fsleep syz-executor 16244 142451 58719 0 2 0 syz-executor 16244 343547 58719 0 3 0x4000080 fsleep syz-executor 82871 464561 0 0 3 0x14200 acct acct 25309 16572 64657 0 3 0x82 sbwait sshd-session 99626 230862 64657 0 3 0x82 sbwait sshd-session 34328 387300 0 0 3 0x14200 bored sosplice 58719 445308 52747 0 3 0x82 nanoslp syz-executor 84257 108906 52747 0 3 0x82 nanoslp syz-executor 86335 298375 52747 0 3 0x82 nanoslp syz-executor 23075 332316 52747 0 3 0x82 nanoslp syz-executor 95218 172388 52747 0 3 0x82 wait syz-executor 98815 164646 52747 0 3 0x82 nanoslp syz-executor 8884 339083 52747 0 3 0x82 nanoslp syz-executor 20973 490526 52747 0 3 0x82 nanoslp syz-executor 52747 76055 69655 0 3 0x82 kqread syz-executor 69655 323595 75528 0 3 0x10008a sigsusp ksh 75528 142191 44977 0 3 0x98 kqread sshd-session 44977 181254 64657 0 3 0x92 kqread sshd-session 81238 444316 1 0 3 0x100083 ttyin getty 64657 144277 1 0 3 0x88 kqread sshd 78763 180435 5585 74 3 0x1100092 bpf pflogd 5585 326251 1 0 3 0x80 sbwait pflogd 33018 141350 87765 73 3 0x1100090 kqread syslogd 87765 507902 1 0 3 0x100082 sbwait syslogd 9496 51285 1 0 3 0x100080 kqread resolvd 68457 268593 54496 77 3 0x100092 kqread dhcpleased 19157 186326 54496 77 3 0x100092 kqread dhcpleased 54496 62304 1 0 3 0x80 kqread dhcpleased 9725 516434 0 0 3 0x14200 bored smr 68484 332645 0 0 2 0x14200 zerothread 32015 305598 0 0 3 0x14200 aiodoned aiodoned 40810 86019 0 0 3 0x14200 syncer update 8038 287752 0 0 3 0x14200 cleaner cleaner 40493 425643 0 0 3 0x14200 reaper reaper 97934 133777 0 0 3 0x14200 pgdaemon pagedaemon 65725 54509 0 0 3 0x14200 bored viomb 40413 63515 0 0 3 0x40014200 acpi0 acpi0 10701 460659 0 0 3 0x40014200 idle1 33707 303153 0 0 3 0x14200 bored softnet3 7374 299028 0 0 3 0x14200 bored softnet2 32153 373637 0 0 3 0x14200 bored softnet1 8977 351697 0 0 3 0x14200 bored softnet0 77631 306400 0 0 2 0x14200 systqmp 17271 289628 0 0 3 0x14200 bored systq 65880 335632 0 0 3 0x14200 tmoslp softclockmp 33111 505423 0 0 3 0x40014200 tmoslp softclock 94905 431311 0 0 3 0x40014200 idle0 1 420221 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &sched_lock r = 0 (0xffffffff838962a0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 yield+0x35 sys/kern/sched_bsd.c:317 #4 pool_get+0x265 sys/kern/subr_pool.c:593 #5 namei+0xdf sys/kern/vfs_lookup.c:145 #6 vn_open+0x13f sys/kern/vfs_vnops.c:140 #7 doopenat+0x32e sys/kern/vfs_syscalls.c:1133 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 87016 (syz-executor) thread 0xffff80002f8a1c58 (481249) exclusive rwlock netlock r = 0 (0xffffffff837c0b08) #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 rtm_output+0x78d sys/net/rtsock.c:969 #3 route_output+0x9a1 sys/net/rtsock.c:878 #4 route_send+0xd7 sys/net/rtsock.c:342 #5 sosend+0x804 #6 sendit+0x721 sys/kern/uipc_syscalls.c:779 #7 sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 exclusive rwlock sbufsnd r = 0 (0xffff800010fd8cd8) #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 sblock+0xb7 sys/kern/uipc_socket2.c:537 #3 sosend+0x2e2 sys/kern/uipc_socket.c:631 #4 sendit+0x721 sys/kern/uipc_syscalls.c:779 #5 sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 87016 (syz-executor) thread 0xffff80002f8a1218 (306610) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839e0228) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 doopenat+0x314 sys/kern/vfs_syscalls.c:1133 #2 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #2 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #3 Xsyscall+0x128 Process 87016 (syz-executor) thread 0xffff80002a3322b0 (239556) exclusive rwlock vmmaplk r = 0 (0xfffffd8064a21a10) #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:1858 #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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10198 11027K 11366K 166960K 11862 0 pcb 17 12K 12K 166960K 80 0 rtable 178 5K 7K 166960K 419 0 pf 36 18K 18K 166960K 72 0 ifaddr 35 5K 7K 166960K 58 0 ifgroup 49 2K 2K 166960K 79 0 sysctl 1 1K 1K 166960K 1 0 counters 64 36K 36K 166960K 86 0 ioctlops 0 0K 4K 166960K 1525 0 iov 0 0K 14K 166960K 23 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1422 89K 90K 166960K 1711 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 12 0K 0K 166960K 52 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 93K 166960K 513 0 sigio 0 0K 0K 166960K 5 0 proc 72 91K 140K 166960K 581 0 subproc 72 4K 4K 166960K 73 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 45 0 in_multi 76 5K 7K 166960K 119 0 ether_multi 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 446 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 252 74K 78K 166960K 6418 0 UVM aobj 14 4K 4K 166960K 16 0 pinsyscall 47 94K 104K 166960K 1611 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 13 0 NDP 11 0K 2K 166960K 37 0 temp 46 8636K 8767K 166960K 14084 0 kqueue 14 22K 28K 166960K 87 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 85 0 49 2 0 2 2 0 8 0 rtentry 168 136 0 56 5 0 5 5 0 8 0 unpcb 144 503 0 482 3 1 2 2 0 8 1 syncache 336 7 0 7 4 3 1 1 0 8 1 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 808 167 0 156 5 3 2 5 0 8 0 arp 120 29 0 13 1 0 1 1 0 8 0 inpcb 376 650 0 636 12 8 4 9 0 8 2 nd6 136 25 0 6 1 0 1 1 0 8 0 pkpcb 40 6 0 6 3 2 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 8 0 6 3 2 1 1 0 8 0 pppxif 1472 1 0 1 1 1 0 1 0 8 0 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrent 40 1 0 1 1 1 0 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 pfstitem 24 42 0 15 1 0 1 1 0 8 0 pfstkey 128 59 0 32 2 0 2 2 0 8 0 pfstate 376 58 0 31 5 0 5 5 0 8 0 pfrule 1344 22 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 538 0 181 30 1 29 30 0 8 2 art_table 32 539 0 181 4 0 4 4 0 8 0 art_node 16 135 0 67 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 8 2 1 1 1 0 8 1 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 50 0 40 1 0 1 1 0 8 0 shmpl 112 13 0 2 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2279 0 771 95 0 95 95 0 8 0 ffsino 280 2279 0 771 109 0 109 109 0 8 0 nchpl 144 3042 0 1353 63 0 63 63 0 8 0 rtmask 32 1 0 1 1 1 0 1 0 8 0 uvmvnodes 80 2588 0 0 53 0 53 53 0 8 0 vnodes 216 2588 0 0 144 0 144 144 0 8 0 namei 1024 9680 0 9679 5 4 1 2 0 8 0 percpumem 16 57 0 11 1 0 1 1 0 8 0 kstatmem 264 40 0 18 2 0 2 2 0 8 0 scsiplug 72 2 0 2 2 2 0 1 0 8 0 scxspl 216 9731 0 9731 10 3 7 8 1 8 7 plimitpl 152 84 0 66 1 0 1 1 0 8 0 sigapl 424 817 0 763 8 1 7 7 0 8 0 futexpl 64 5880 0 5875 1 0 1 1 0 8 0 knotepl 120 529 0 0 17 0 17 17 0 8 0 kqueuepl 216 198 0 187 3 0 3 3 0 8 2 pipepl 328 195 0 166 8 2 6 8 0 8 3 fdescpl 504 797 0 763 5 0 5 5 0 8 0 filepl 152 4650 0 4386 20 5 15 17 0 8 4 lockfpl 104 130 0 128 1 0 1 1 0 8 0 lockfspl 48 58 0 56 1 0 1 1 0 8 0 sessionpl 144 26 0 15 1 0 1 1 0 8 0 pgrppl 48 38 0 19 1 0 1 1 0 8 0 ucredpl 104 569 0 556 1 0 1 1 0 8 0 zombiepl 144 916 0 915 2 1 1 1 0 8 0 processpl 1168 817 0 763 5 1 4 5 0 8 0 procpl 656 1481 0 1417 6 0 6 6 0 8 0 srpgc 96 8 0 8 1 0 1 1 0 8 1 sosppl 168 1 0 1 1 1 0 1 0 8 0 sockpl 688 1251 0 1180 15 8 7 10 0 8 0 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 11 0 0 2 0 2 2 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 11 0 0 2 0 2 2 0 8 0 mcl4k 4096 126 0 0 16 0 16 16 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 233 0 0 15 0 15 15 0 8 0 bufpl 280 3364 0 137 231 0 231 231 0 8 0 anonpl 24 104088 0 100125 36 10 26 33 0 184 0 amapchunkpl 152 19741 0 19200 29 6 23 27 0 158 1 amappl16 200 1145 0 1109 4 1 3 3 0 8 0 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 118 0 104 1 0 1 1 0 8 0 amappl13 176 1 0 1 1 1 0 1 0 8 0 amappl12 168 1435 0 1401 4 1 3 3 0 8 0 amappl11 160 49 0 35 1 0 1 1 0 8 0 amappl10 152 5 0 4 2 1 1 1 0 8 0 amappl9 144 256 0 256 1 1 0 1 0 8 0 amappl8 136 20 0 17 1 0 1 1 0 8 0 amappl7 128 106 0 91 1 0 1 1 0 8 0 amappl6 120 173 0 168 1 0 1 1 0 8 0 amappl5 112 128 0 118 1 0 1 1 0 8 0 amappl4 104 325 0 306 1 0 1 1 0 8 0 amappl3 96 3840 0 3716 4 0 4 4 0 8 0 amappl2 88 665 0 592 2 0 2 2 0 8 0 amappl1 80 9799 0 9046 18 0 18 18 0 8 1 amappl 88 6018 0 5832 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 15 0 2 1 0 1 1 0 8 0 uaddrrnd 24 797 0 763 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 797 0 763 1 0 1 1 0 8 0 vmmpekpl 168 8413 0 8365 3 0 3 3 0 8 0 vmmpepl 168 53669 0 51464 110 9 101 101 0 357 2 vmsppl 456 796 0 763 6 1 5 5 0 8 0 rwobjpl 64 19074 0 15321 62 0 62 62 0 8 0 pdppl 4096 1602 0 1526 113 35 78 86 0 8 2 pvpl 32 13478 0 0 109 0 109 109 0 265 0 pmappl 248 796 0 763 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 312 0 51 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: 0x786320b45560, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029a9bff0) 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:666 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(800,30) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(30) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(30) at db_putchar+0x65c sys/ddb/db_output.c:155 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff833e07a1) at db_printf+0x9b fault(ffffffff8337e9c3) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80003a0ce610,ffff8000014d102a) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80003a0ce610) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0xffff80003a0ce740, count: 0 ddb{1}> trace x86_ipi_db(ffff800029a9bff0) 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:666 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(800,30) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(30) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(30) at db_putchar+0x65c sys/ddb/db_output.c:155 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff833e07a1) at db_printf+0x9b fault(ffffffff8337e9c3) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80003a0ce610,ffff8000014d102a) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80003a0ce610) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b arp_rtrequest(ffff800000039058,1,fffffd806bb89a88) at arp_rtrequest+0x670 arprequest sys/netinet/if_ether.c:281 [inline] arp_rtrequest(ffff800000039058,1,fffffd806bb89a88) at arp_rtrequest+0x670 sys/netinet/if_ether.c:184 rtrequest(1,ffff80003a0ce8f0,0,ffff80003a0ce870,0) at rtrequest+0xc3c sys/net/route.c:1120 rtm_output(ffff800001483700,ffff80003a0ce998,ffff80003a0ce8f0,0,0) at rtm_output+0x877 sys/net/rtsock.c:973 route_output(fffffd8079930900,ffff800010fd8b18) at route_output+0x9a1 sys/net/rtsock.c:878 route_send(ffff800010fd8b18,fffffd8079930900,0,0) at route_send+0xd7 sys/net/rtsock.c:342 sosend(ffff800010fd8b18,0,ffff80003a0ceb38,0,0,802) at sosend+0x804 sendit(ffff80002f8a1c58,4,ffff80003a0cec30,802,ffff80003a0cece0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80002f8a1c58,ffff80003a0ced90,ffff80003a0cece0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003a0ced90) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a0ced90) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x97f8cad8480, count: -24