witness: lock order reversal: 1st 0xfffffd807effe2f8 vmmaplk (&map->lock) 2nd 0xfffffd80624f6e70 inode (&ip->i_lock) lock order "&ip->i_lock"(rrwlock) -> "&map->lock"(rwlock) first seen at: #0 witness_checkorder+0x65e witness_lock_order_add sys/kern/subr_witness.c:2463 [inline] #0 witness_checkorder+0x65e sys/kern/subr_witness.c:880 #1 rw_enter_read+0x66 sys/kern/kern_rwlock.c:111 #2 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1438 #3 uvm_fault+0x7e sys/uvm/uvm_fault.c:526 #4 pageflttrap+0x254 sys/arch/amd64/amd64/trap.c:219 #5 kerntrap+0xf1 sys/arch/amd64/amd64/trap.c:301 #6 alltraps_kern_meltdown+0x7b #7 copyout+0x53 #8 ffs_read+0x3e2 sys/ufs/ffs/ffs_vnops.c:258 #9 VOP_READ+0xbf sys/kern/vfs_vops.c:247 #10 vn_rdwr+0x10b #11 vmcmd_map_readvn+0xda sys/kern/exec_subr.c:246 #12 exec_process_vmcmds+0xb2 sys/kern/exec_subr.c:143 #13 sys_execve+0x9ff sys/kern/kern_exec.c:461 #14 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #14 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:567 #15 Xsyscall+0x128 lock order "&map->lock"(rwlock) -> "&ip->i_lock"(rrwlock) first seen at: #0 witness_checkorder+0x65e witness_lock_order_add sys/kern/subr_witness.c:2463 [inline] #0 witness_checkorder+0x65e sys/kern/subr_witness.c:880 #1 rw_enter+0xd4 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x6c sys/kern/vfs_vnops.c:575 #5 uvn_io+0x2b5 sys/uvm/uvm_vnode.c:1196 #6 uvn_get+0x226 sys/uvm/uvm_vnode.c:1056 #7 uvm_fault+0x1197 sys/uvm/uvm_fault.c:1016 #8 uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1285 #9 uvm_map_pageable_wire+0x30d sys/uvm/uvm_map.c:2367 #10 sys_mlockall+0x6a sys/uvm/uvm_mmap.c:828 #11 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #11 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:567 #12 Xsyscall+0x128 Stopped at db_enter+0x18: addq $0x8,%rsp ddb{0}> 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 witness_checkorder(fffffd80624f6e70,9,0) at witness_checkorder+0xf5a witness_debugger sys/kern/subr_witness.c:2490 [inline] witness_checkorder(fffffd80624f6e70,9,0) at witness_checkorder+0xf5a sys/kern/subr_witness.c:1087 rw_enter(fffffd80624f6e60,81) at rw_enter+0xd4 rrw_enter(fffffd80624f6e60,81) at rrw_enter+0x88 sys/kern/kern_rwlock.c:462 VOP_LOCK(fffffd8062566b60,81) at VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 vn_lock(fffffd8062566b60,81) at vn_lock+0x6c sys/kern/vfs_vnops.c:575 uvn_io(fffffd806dd32e60,ffff800023333648,1,2,0) at uvn_io+0x2b5 sys/uvm/uvm_vnode.c:1196 uvn_get(fffffd806dd32e60,a000,ffff8000233338a0,ffff80002333383c,0,3) at uvn_get+0x226 sys/uvm/uvm_vnode.c:1056 uvm_fault(fffffd807effe2e0,1b32f2a000,2,3) at uvm_fault+0x1197 sys/uvm/uvm_fault.c:1016 uvm_fault_wire(fffffd807effe2e0,1b32f20000,1b33f20000,3) at uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1285 uvm_map_pageable_wire(fffffd807effe2e0,fffffd806242d218,0,36f,ffffffff8228a410,0) at uvm_map_pageable_wire+0x30d sys/uvm/uvm_map.c:2367 sys_mlockall(ffff8000212ff8d0,ffff800023333a78,ffff800023333ac0) at sys_mlockall+0x6a sys/uvm/uvm_mmap.c:828 syscall(ffff800023333b40) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023333b40) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:567 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc7aecc46e30, count: -14 ddb{0}> show registers rdi 0x3 rsi 0x40000 acpi_pdirpa+0x2be68 rbp 0xffff8000233332a0 rbx 0x3 rdx 0xffff800000b268c0 rcx 0x3 rax 0x3ffff acpi_pdirpa+0x2be67 r8 0xffffffff8129a523 witness_checkorder+0xf33 r9 0x5 r10 0xcc1064ee35f2fd6a r11 0x73af1e4470d8ebd3 r12 0xffffffff8281dbf0 w_lodata+0x546f0 r13 0 r14 0xffffffff82806e30 w_lodata+0x3d930 r15 0xfffffd8002c8f480 rip 0xffffffff819aafe8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800023333290 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.1) pid=220979 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000212ff658,0xffffffff8287f558 process=0xffff8000212f6be0 user=0xffff80002332e000, vmspace=0xfffffd807effe2e0 estcpu=36, cpticks=7, pctcpu=0.0 user=0, sys=7, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 22553 94952 70003 0 2 0 syz-executor.1 *22553 220979 70003 0 7 0x4000000 syz-executor.1 67072 69889 49625 0 2 0 syz-executor.0 67072 76904 49625 0 3 0x4000080 fsleep syz-executor.0 70003 351510 90281 0 7 0x482 syz-executor.1 49625 292087 90281 0 2 0x482 syz-executor.0 2481 94361 1 0 3 0x100083 ttyin getty 12098 428002 0 0 3 0x14200 acct acct 82395 406333 0 0 3 0x14200 bored sosplice 90281 360959 43127 0 3 0x82 thrsleep syz-fuzzer 90281 84908 43127 0 2 0x4000482 syz-fuzzer 90281 394469 43127 0 2 0x4000482 syz-fuzzer 90281 197633 43127 0 3 0x4000082 thrsleep syz-fuzzer 90281 171142 43127 0 3 0x4000082 thrsleep syz-fuzzer 90281 7906 43127 0 3 0x4000082 thrsleep syz-fuzzer 90281 356081 43127 0 3 0x4000082 thrsleep syz-fuzzer 90281 393749 43127 0 3 0x4000082 thrsleep syz-fuzzer 43127 148217 1074 0 3 0x10008a pause ksh 1074 397729 50834 0 3 0x92 select sshd 50834 7929 1 0 3 0x80 select sshd 32097 21879 35955 74 3 0x100092 bpf pflogd 35955 509923 1 0 3 0x80 netio pflogd 22466 143898 43283 73 3 0x100090 kqread syslogd 43283 157453 1 0 3 0x100082 netio syslogd 57412 369419 1 77 3 0x100090 poll dhclient 14073 501635 1 0 3 0x80 poll dhclient 88189 427974 0 0 3 0x14200 bored smr 23249 107128 0 0 2 0x14200 zerothread 75241 306690 0 0 3 0x14200 aiodoned aiodoned 95603 320022 0 0 3 0x14200 syncer update 40358 114159 0 0 3 0x14200 cleaner cleaner 52765 450989 0 0 3 0x14200 reaper reaper 72988 474401 0 0 3 0x14200 pgdaemon pagedaemon 39875 488587 0 0 3 0x14200 bored crynlk 31630 371323 0 0 3 0x14200 bored crypto 5976 97243 0 0 3 0x40014200 acpi0 acpi0 53311 253412 0 0 3 0x40014200 idle1 57266 508325 0 0 3 0x14200 bored softnet 91578 496916 0 0 3 0x14200 bored systqmp 19748 300833 0 0 3 0x14200 bored systq 79349 5736 0 0 2 0x40014200 softclock 73146 388871 0 0 3 0x40014200 idle0 1 164601 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 22553 (syz-executor.1) thread 0xffff8000212ff8d0 (220979) shared rwlock vmmaplk r = 0 (0xfffffd807effe2f8) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1164 #1 rw_enter+0x446 sys/kern/kern_rwlock.c:311 #2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5452 #3 uvm_map_pageable_all+0x56 sys/uvm/uvm_map.c:2576 #4 sys_mlockall+0x6a sys/uvm/uvm_mmap.c:828 #5 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:567 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8287d770) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1164 #1 syscall+0x3fd mi_syscall sys/sys/syscall_mi.h:93 [inline] #1 syscall+0x3fd sys/arch/amd64/amd64/trap.c:567 #2 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9541 6507K 7122K 78643K 13882 0 pcb 13 8K 8K 78643K 106 0 rtable 86 2K 5K 78643K 477 0 ifaddr 83 15K 15K 78643K 149 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 61 0 ioctlops 0 0K 4K 78643K 1981 0 iov 0 0K 24K 78643K 276 0 mount 1 1K 1K 78643K 1 0 vnodes 1221 77K 77K 78643K 2701 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 53 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 2143 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 31478 0 sigio 0 0K 0K 78643K 42 0 proc 62 63K 95K 78643K 730 0 subproc 32 2K 2K 78643K 85 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 296 0 in_multi 33 2K 2K 78643K 193 0 ether_multi 1 0K 0K 78643K 20 0 mrt 0 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 2K 78643K 532 0 pfkey data 0 0K 1K 78643K 2 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 434 89K 944K 78643K 67191 0 UVM aobj 131 8K 8K 78643K 142 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 95 0 NDP 15 0K 0K 78643K 34 0 temp 148 3976K 4604K 78643K 85691 0 kqueue 3 4K 22K 78643K 1057 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 15 0 9 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 96 169 0 167 1 0 1 1 0 8 0 rtentry 112 85 0 51 2 0 2 2 0 8 0 unpcb 120 5488 0 5472 1 0 1 1 0 8 0 syncache 272 23 0 23 9 9 0 1 0 8 0 tcpqe 32 1922 0 1922 5 5 0 1 0 8 0 tcpcb 592 1205 0 1199 24 22 2 4 0 8 0 inpcb 296 3358 0 3351 18 16 2 2 0 8 1 nd6 48 15 0 9 1 0 1 1 0 8 0 pkpcb 40 14 0 14 4 4 0 1 0 8 0 kcovpl 48 5 0 3 1 0 1 1 0 8 0 pfstscr 40 6 0 6 3 3 0 1 0 8 0 pffrag 232 1 0 1 1 1 0 1 0 482 0 pffrnode 88 1 0 1 1 1 0 1 0 8 0 pffrent 40 10 0 10 5 5 0 1 0 8 0 pfosfp 40 848 0 423 5 0 5 5 0 8 0 pfosfpen 112 1430 0 714 21 0 21 21 0 8 0 pfrktable 1344 3 0 3 1 1 0 1 0 8 0 pfstitem 24 55 0 53 1 0 1 1 0 8 0 pfstkey 112 62 0 60 1 0 1 1 0 8 0 pfstate 328 57 0 55 2 1 1 2 0 8 0 pfrule 1360 24 0 20 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 384 0 259 12 1 11 12 0 8 0 art_table 32 385 0 259 2 0 2 2 0 8 0 art_node 16 84 0 56 1 0 1 1 0 8 0 sysvmsgpl 40 37 0 12 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 2141 0 2131 1 0 1 1 0 8 0 shmpl 112 139 0 11 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 34356 0 32956 91 2 89 89 0 8 0 ffsino 272 34356 0 32956 96 1 95 95 0 8 0 nchpl 144 70097 0 68505 60 0 60 60 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 208 5926 0 0 312 0 312 312 0 8 0 namei 1024 155536 0 155536 3 2 1 1 0 8 1 percpumem 16 41 0 9 1 0 1 1 0 8 0 vcpupl 1984 3 0 0 1 0 1 1 0 8 0 vmpool 560 3 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 2 1 1 0 1 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 192 200637 0 200637 12 10 2 7 0 8 2 plimitpl 152 355 0 346 1 0 1 1 0 8 0 sigapl 424 31687 0 31653 4 0 4 4 0 8 0 futexpl 56 153248 0 153247 2 1 1 1 0 8 0 knotepl 112 830 0 810 2 1 1 2 0 8 0 kqueuepl 152 29328 0 29322 1 0 1 1 0 8 0 pipepl 304 1840 0 1829 25 24 1 2 0 8 0 fdescpl 496 31670 0 31653 3 0 3 3 0 8 0 filepl 152 92196 0 92093 6 1 5 5 0 8 1 lockfpl 104 1287 0 1286 1 0 1 1 0 8 0 lockfspl 48 549 0 548 1 0 1 1 0 8 0 sessionpl 120 22 0 11 1 0 1 1 0 8 0 pgrppl 48 34 0 23 1 0 1 1 0 8 0 ucredpl 96 2248 0 2239 1 0 1 1 0 8 0 zombiepl 144 31653 0 31653 2 1 1 1 0 8 1 processpl 1008 31687 0 31653 6 1 5 5 0 8 0 procpl 632 64144 0 64101 6 2 4 5 0 8 0 sosppl 144 40 0 40 13 13 0 1 0 8 0 sockpl 400 9034 0 9009 13 9 4 4 0 8 0 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 41 0 0 2 0 2 2 0 8 0 mcl8k 8192 26 0 0 3 0 3 3 0 8 0 mcl4k 4096 25 0 0 4 1 3 3 0 8 0 mcl2k2 2112 17 0 0 2 0 2 2 0 8 0 mcl2k 2048 452 0 0 30 14 16 30 0 8 0 mtagpl 96 97 0 0 3 0 3 3 0 8 0 mbufpl 256 912 0 0 30 0 30 30 0 8 0 bufpl 280 37713 0 31465 447 0 447 447 0 8 0 anonpl 16 1916864 0 1842474 373 74 299 299 0 124 0 amapchunkpl 152 218025 0 215412 4536 4431 105 4497 0 158 4 amappl16 192 76183 0 74135 165 62 103 111 0 8 0 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 25 0 19 1 0 1 1 0 8 0 amappl13 168 12908 0 12906 1 0 1 1 0 8 0 amappl12 160 13687 0 13681 1 0 1 1 0 8 0 amappl11 152 67 0 52 1 0 1 1 0 8 0 amappl10 144 3657 0 3651 1 0 1 1 0 8 0 amappl9 136 373 0 372 2 1 1 1 0 8 0 amappl8 128 4108 0 4052 2 0 2 2 0 8 0 amappl7 120 282 0 274 1 0 1 1 0 8 0 amappl6 112 3399 0 3385 1 0 1 1 0 8 0 amappl5 104 7028 0 7005 1 0 1 1 0 8 0 amappl4 96 14281 0 14255 1 0 1 1 0 8 0 amappl3 88 26435 0 26427 1 0 1 1 0 8 0 amappl2 80 217936 0 217861 2 0 2 2 0 8 0 amappl1 72 832830 0 832323 26 16 10 19 0 8 0 amappl 80 64815 0 64449 8 0 8 8 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 64 141 0 11 3 0 3 3 0 8 0 uaddrrnd 24 31673 0 31653 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 31673 0 31653 1 0 1 1 0 8 0 vmmpekpl 168 124680 0 124642 2 0 2 2 0 8 0 vmmpepl 168 3831697 0 3828007 434 243 191 252 0 357 30 vmsppl 368 31672 0 31653 2 0 2 2 0 8 0 pdppl 4096 63353 0 63309 8 2 6 6 0 8 0 pvpl 32 8109859 0 8032261 782 156 626 626 0 265 0 pmappl 232 31672 0 31653 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 315 0 44 8 0 8 8 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 witness_checkorder(fffffd80624f6e70,9,0) at witness_checkorder+0xf5a witness_debugger sys/kern/subr_witness.c:2490 [inline] witness_checkorder(fffffd80624f6e70,9,0) at witness_checkorder+0xf5a sys/kern/subr_witness.c:1087 rw_enter(fffffd80624f6e60,81) at rw_enter+0xd4 rrw_enter(fffffd80624f6e60,81) at rrw_enter+0x88 sys/kern/kern_rwlock.c:462 VOP_LOCK(fffffd8062566b60,81) at VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 vn_lock(fffffd8062566b60,81) at vn_lock+0x6c sys/kern/vfs_vnops.c:575 uvn_io(fffffd806dd32e60,ffff800023333648,1,2,0) at uvn_io+0x2b5 sys/uvm/uvm_vnode.c:1196 uvn_get(fffffd806dd32e60,a000,ffff8000233338a0,ffff80002333383c,0,3) at uvn_get+0x226 sys/uvm/uvm_vnode.c:1056 uvm_fault(fffffd807effe2e0,1b32f2a000,2,3) at uvm_fault+0x1197 sys/uvm/uvm_fault.c:1016 uvm_fault_wire(fffffd807effe2e0,1b32f20000,1b33f20000,3) at uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1285 uvm_map_pageable_wire(fffffd807effe2e0,fffffd806242d218,0,36f,ffffffff8228a410,0) at uvm_map_pageable_wire+0x30d sys/uvm/uvm_map.c:2367 sys_mlockall(ffff8000212ff8d0,ffff800023333a78,ffff800023333ac0) at sys_mlockall+0x6a sys/uvm/uvm_mmap.c:828 syscall(ffff800023333b40) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023333b40) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:567 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc7aecc46e30, 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+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff8287d568) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8287d568) at __mp_lock+0x129 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff8287d568,1) at __mp_acquire_count+0x4c sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x390 sys/kern/sched_bsd.c:435 sleep_finish(ffff8000212ed400,1) at sleep_finish+0x111 sys/kern/kern_synch.c:418 sleep_finish_all(ffff8000212ed400,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff8000212ed400,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff82821500,120,ffffffff823b473b,2) at tsleep+0x1c2 sys/kern/kern_synch.c:155 sys_nanosleep(ffff8000212fec78,ffff8000212ed530,ffff8000212ed580) at sys_nanosleep+0x1f5 sys/kern/kern_time.c:297 syscall(ffff8000212ed600) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000212ed600) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:567 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd8280, count: -12