witness: lock order reversal: 1st 0xfffffd807effa188 vmmaplk (&map->lock) 2nd 0xfffffd805df72d58 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:1495 #3 uvm_fault_check+0x3d sys/uvm/uvm_fault.c:513 #4 uvm_fault+0xdb sys/uvm/uvm_fault.c:694 #5 kpageflttrap+0x202 sys/arch/amd64/amd64/trap.c:265 #6 kerntrap+0xef sys/arch/amd64/amd64/trap.c:321 #7 alltraps_kern_meltdown+0x7b #8 copyout+0x53 #9 ffs_read+0x3e2 sys/ufs/ffs/ffs_vnops.c:258 #10 VOP_READ+0xbf sys/kern/vfs_vops.c:253 #11 vn_rdwr+0x10b #12 vmcmd_map_readvn+0xda sys/kern/exec_subr.c:246 #13 exec_process_vmcmds+0xb2 sys/kern/exec_subr.c:143 #14 sys_execve+0x9ff sys/kern/kern_exec.c:461 #15 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #15 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 #16 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:614 #4 vn_lock+0x6c sys/kern/vfs_vnops.c:575 #5 uvn_io+0x2b5 sys/uvm/uvm_vnode.c:1201 #6 uvn_get+0x236 sys/uvm/uvm_vnode.c:1061 #7 uvm_fault+0xa41 sys/uvm/uvm_fault.c:1073 #8 uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1342 #9 uvm_map_pageable_wire+0x30d sys/uvm/uvm_map.c:2367 #10 sys_mlock+0x180 sys/uvm/uvm_mmap.c:772 #11 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #11 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 #12 Xsyscall+0x128 Stopped at db_enter+0x18: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 witness_checkorder(fffffd805df72d58,9,0) at witness_checkorder+0xf5a witness_debugger sys/kern/subr_witness.c:2490 [inline] witness_checkorder(fffffd805df72d58,9,0) at witness_checkorder+0xf5a sys/kern/subr_witness.c:1087 rw_enter(fffffd805df72d48,81) at rw_enter+0xd4 rrw_enter(fffffd805df72d48,81) at rrw_enter+0x88 sys/kern/kern_rwlock.c:462 VOP_LOCK(fffffd80628f0d08,81) at VOP_LOCK+0x4b sys/kern/vfs_vops.c:614 vn_lock(fffffd80628f0d08,81) at vn_lock+0x6c sys/kern/vfs_vnops.c:575 uvn_io(fffffd805accd888,ffff800022ad8708,1,2,0) at uvn_io+0x2b5 sys/uvm/uvm_vnode.c:1201 uvn_get(fffffd805accd888,0,ffff800022ad8968,ffff800022ad8904,0,1) at uvn_get+0x236 sys/uvm/uvm_vnode.c:1061 uvm_fault(fffffd807effa170,20000000,2,1) at uvm_fault+0xa41 sys/uvm/uvm_fault.c:1073 uvm_fault_wire(fffffd807effa170,20000000,20002000,1) at uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1342 uvm_map_pageable_wire(fffffd807effa170,fffffd806bdf7600,fffffd806b9f7588,283,ffffffff8117aa5e,0) at uvm_map_pageable_wire+0x30d sys/uvm/uvm_map.c:2367 sys_mlock(ffff8000ffff4020,ffff800022ad8b48,ffff800022ad8b90) at sys_mlock+0x180 sys/uvm/uvm_mmap.c:772 syscall(ffff800022ad8c10) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022ad8c10) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xac6bb027790, count: -14 ddb{1}> show registers rdi 0x3 rsi 0x40000 acpi_pdirpa+0x2be68 rbp 0xffff800022ad8360 rbx 0x3 rdx 0xffff800000af22c0 rcx 0x3 rax 0x3ffff acpi_pdirpa+0x2be67 r8 0xffffffff81178703 witness_checkorder+0xf33 r9 0x5 r10 0xe524ce89966965b7 r11 0x15eabb24576dcd9b r12 0xffffffff82821010 w_lodata+0x54590 r13 0 r14 0xffffffff8280e5b0 w_lodata+0x41b30 r15 0xfffffd8002c9b500 rip 0xffffffff8196d088 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800022ad8350 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) pid=125504 stat=onproc flags process=10 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff4540,0xffff8000ffff42c0 process=0xffff8000ffff2d80 user=0xffff800022ad3000, vmspace=0xfffffd807effa170 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 60099 57066 47253 32767 2 0x10 syz-executor.0 *60099 125504 47253 32767 7 0x4000010 syz-executor.0 60099 392814 47253 32767 3 0x4000090 fsleep syz-executor.0 60099 142782 47253 32767 7 0x4000010 syz-executor.0 97505 433191 67829 32767 3 0x10 biowait syz-executor.1 47253 477721 63025 32767 3 0x90 nanosleep syz-executor.0 67829 349779 63747 0 3 0x82 wait syz-executor.1 63025 187947 63747 0 3 0x82 wait syz-executor.0 63747 120083 39493 0 3 0x82 thrsleep syz-fuzzer 63747 155691 39493 0 3 0x4000082 nanosleep syz-fuzzer 63747 85726 39493 0 3 0x4000082 thrsleep syz-fuzzer 63747 182258 39493 0 3 0x4000082 kqread syz-fuzzer 63747 308321 39493 0 3 0x4000082 thrsleep syz-fuzzer 63747 47984 39493 0 3 0x4000082 nanosleep syz-fuzzer 63747 455799 39493 0 3 0x4000082 thrsleep syz-fuzzer 63747 445232 39493 0 3 0x4000082 thrsleep syz-fuzzer 39493 241002 32602 0 3 0x10008a pause ksh 32602 300726 47613 0 3 0x92 select sshd 40178 196933 1 0 3 0x100083 ttyin getty 47613 273138 1 0 3 0x80 select sshd 27031 74554 4319 73 3 0x100090 kqread syslogd 4319 27969 1 0 3 0x100082 netio syslogd 20045 179788 1 77 3 0x100090 poll dhclient 73857 43245 1 0 3 0x80 poll dhclient 52026 508320 0 0 3 0x14200 bored smr 25143 347463 0 0 2 0x14200 zerothread 70529 79032 0 0 3 0x14200 aiodoned aiodoned 75128 340101 0 0 3 0x14200 syncer update 8931 50891 0 0 3 0x14200 cleaner cleaner 80338 505960 0 0 3 0x14200 reaper reaper 22897 29713 0 0 3 0x14200 pgdaemon pagedaemon 92423 15169 0 0 3 0x14200 bored crynlk 16993 228798 0 0 3 0x14200 bored crypto 17690 176455 0 0 3 0x14200 bored viomb 50332 68482 0 0 3 0x40014200 acpi0 acpi0 89022 453152 0 0 3 0x40014200 idle1 21228 159547 0 0 3 0x14200 bored softnet 32047 150623 0 0 3 0x14200 bored systqmp 16143 117091 0 0 3 0x14200 bored systq 40923 459757 0 0 3 0x40014200 bored softclock 48485 295932 0 0 3 0x40014200 idle0 1 294914 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 60099 (syz-executor.0) thread 0xffff8000ffff4020 (125504) shared rwlock vmmaplk r = 0 (0xfffffd807effa188) #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:5463 #3 uvm_map_pageable+0x120 sys/uvm/uvm_map.c:2463 #4 sys_mlock+0x180 sys/uvm/uvm_mmap.c:772 #5 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828902c0) #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:590 #2 Xsyscall+0x128 Process 97505 (syz-executor.1) thread 0xffff8000ffff4f80 (433191) exclusive rrwlock inode r = 0 (0xfffffd805df72b38) #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 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:614 #4 vn_lock+0x6c sys/kern/vfs_vnops.c:575 #5 vget+0x1c6 sys/kern/vfs_subr.c:671 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x6b sys/ufs/ffs/ffs_vfsops.c:1321 #8 ufs_lookup+0x151d sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #10 vfs_lookup+0x708 sys/kern/vfs_lookup.c:568 #11 namei+0x5f7 sys/kern/vfs_lookup.c:249 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848 #13 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806baa9b48) #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 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:614 #4 vn_lock+0x6c sys/kern/vfs_vnops.c:575 #5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419 #6 namei+0x5f7 sys/kern/vfs_lookup.c:249 #7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848 #8 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9477 6349K 6349K 78643K 10568 0 pcb 13 8K 8K 78643K 13 0 rtable 107 3K 3K 78643K 191 0 ifaddr 39 10K 10K 78643K 39 0 counters 43 33K 33K 78643K 43 0 ioctlops 0 0K 2K 78643K 43111 0 iov 0 0K 12K 78643K 19 0 mount 1 1K 1K 78643K 1 0 vnodes 1216 76K 76K 78643K 1221 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 16 0 VM map 2 1K 1K 78643K 2 0 sem 11 1K 1K 78643K 18 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1825 197K 290K 78643K 13109 0 file desc 7 21K 33K 78643K 41685 0 proc 48 50K 70K 78643K 390 0 subproc 34 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 2 0 in_multi 33 2K 2K 78643K 33 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 2K 78643K 321 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 375 51K 52K 78643K 109826 0 UVM aobj 65 3K 3K 78643K 65 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 5 0K 0K 78643K 9 0 temp 101 3961K 4025K 78643K 85207 0 kqueue 3 4K 4K 78643K 3 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 120 19 0 17 1 0 1 1 0 8 0 rtentry 112 46 0 1 2 0 2 2 0 8 0 unpcb 120 228 0 220 1 0 1 1 0 8 0 syncache 296 4 0 4 1 1 0 1 0 8 0 sackhl 24 2 0 2 1 1 0 1 0 8 0 tcpqe 32 343 0 343 3 3 0 2 0 8 0 tcpcb 736 664 0 660 5 4 1 5 0 8 0 inpcb 296 688 0 681 1 0 1 1 0 8 0 nd6 48 7 0 0 1 0 1 1 0 8 0 kcovpl 48 2 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 190 0 0 12 0 12 12 0 8 0 art_table 32 191 0 0 2 0 2 2 0 8 0 art_node 16 45 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 69 0 69 4 4 0 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 9 0 0 1 0 1 1 0 8 0 shmpl 112 62 0 0 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 48145 0 46748 88 0 88 88 0 8 0 ffsino 272 48145 0 46748 94 0 94 94 0 8 0 nchpl 144 95879 0 94281 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 208451 0 208451 2 1 1 1 0 8 1 percpumem 16 32 0 0 1 0 1 1 0 8 0 scxspl 216 274731 0 274730 9 8 1 8 0 8 0 plimitpl 152 16 0 7 1 0 1 1 0 8 0 sigapl 424 41873 0 41841 4 0 4 4 0 8 0 futexpl 56 314695 0 314694 1 0 1 1 0 8 0 knotepl 112 62 0 42 1 0 1 1 0 8 0 kqueuepl 152 41346 0 41342 1 0 1 1 0 8 0 pipepl 304 296 0 285 8 6 2 2 0 8 1 fdescpl 496 41857 0 41841 3 0 3 3 0 8 1 filepl 152 135752 0 135650 8 3 5 5 0 8 1 lockfpl 104 44 0 42 1 0 1 1 0 8 0 lockfspl 48 18 0 16 1 0 1 1 0 8 0 sessionpl 144 17 0 7 1 0 1 1 0 8 0 pgrppl 48 1208 0 1198 1 0 1 1 0 8 0 ucredpl 96 282 0 273 1 0 1 1 0 8 0 zombiepl 144 41841 0 41841 2 1 1 1 0 8 1 processpl 1056 41873 0 41841 5 2 3 3 0 8 0 procpl 656 84945 0 84903 5 1 4 4 0 8 0 sockpl 400 955 0 938 8 6 2 3 0 8 0 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 20 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 35 0 0 4 0 4 4 0 8 1 mcl2k2 2112 17 0 0 2 0 2 2 0 8 0 mcl2k 2048 388 0 0 44 12 32 44 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 770 0 0 24 1 23 23 0 8 0 bufpl 280 49546 0 43301 447 0 447 447 0 8 0 anonpl 16 2532542 0 2477866 240 2 238 238 0 124 0 amapchunkpl 152 131262 0 129122 87 1 86 86 0 158 0 amappl16 192 86584 0 85088 75 0 75 75 0 8 0 amappl15 184 2 0 0 1 0 1 1 0 8 0 amappl14 176 29 0 19 1 0 1 1 0 8 0 amappl13 168 24 0 23 1 0 1 1 0 8 0 amappl12 160 13 0 7 1 0 1 1 0 8 0 amappl11 152 54 0 44 1 0 1 1 0 8 0 amappl10 144 20963 0 20958 1 0 1 1 0 8 0 amappl9 136 366 0 366 1 1 0 1 0 8 0 amappl8 128 41559 0 41510 2 0 2 2 0 8 0 amappl7 120 214 0 208 1 0 1 1 0 8 0 amappl6 112 20943 0 20933 1 0 1 1 0 8 0 amappl5 104 41988 0 41969 1 0 1 1 0 8 0 amappl4 96 269 0 244 1 0 1 1 0 8 0 amappl3 88 849 0 841 1 0 1 1 0 8 0 amappl2 80 291525 0 291462 2 0 2 2 0 8 0 amappl1 72 1279579 0 1279092 23 13 10 18 0 8 0 amappl 80 85430 0 85127 7 0 7 7 0 84 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 64 64 0 0 2 0 2 2 0 8 0 uaddrrnd 24 41857 0 41841 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 41857 0 41841 1 0 1 1 0 8 0 vmmpekpl 168 134983 0 134947 2 0 2 2 0 8 0 vmmpepl 168 5392508 0 5389452 224 85 139 191 0 357 1 vmsppl 368 41856 0 41841 2 0 2 2 0 8 0 pdppl 4096 83721 0 83682 6 0 6 6 0 8 1 pvpl 32 10765923 0 10707923 505 2 503 505 0 265 0 pmappl 232 41856 0 41841 2 1 1 2 0 8 0 extentpl 40 57 0 39 1 0 1 1 0 8 0 phpool 112 299 0 26 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff826b9ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x37 kd_curproc sys/dev/kcov.c:570 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x37 sys/dev/kcov.c:143 __mp_lock(ffffffff828900b8) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828900b8) at __mp_lock+0x133 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff828900b8,1) at __mp_acquire_count+0x4c sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x390 sys/kern/sched_bsd.c:433 sleep_finish(ffff800025706b38,1) at sleep_finish+0x111 sys/kern/kern_synch.c:418 rw_enter(ffffffff826d0730,1) at rw_enter+0x3cf sys_futex(ffff8000ffff5730,ffff800025706c70,ffff800025706cc0) at sys_futex+0x102 sys/kern/sys_futex.c:109 syscall(ffff800025706d40) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800025706d40) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xac67ba4c310, count: -12 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 witness_checkorder(fffffd805df72d58,9,0) at witness_checkorder+0xf5a witness_debugger sys/kern/subr_witness.c:2490 [inline] witness_checkorder(fffffd805df72d58,9,0) at witness_checkorder+0xf5a sys/kern/subr_witness.c:1087 rw_enter(fffffd805df72d48,81) at rw_enter+0xd4 rrw_enter(fffffd805df72d48,81) at rrw_enter+0x88 sys/kern/kern_rwlock.c:462 VOP_LOCK(fffffd80628f0d08,81) at VOP_LOCK+0x4b sys/kern/vfs_vops.c:614 vn_lock(fffffd80628f0d08,81) at vn_lock+0x6c sys/kern/vfs_vnops.c:575 uvn_io(fffffd805accd888,ffff800022ad8708,1,2,0) at uvn_io+0x2b5 sys/uvm/uvm_vnode.c:1201 uvn_get(fffffd805accd888,0,ffff800022ad8968,ffff800022ad8904,0,1) at uvn_get+0x236 sys/uvm/uvm_vnode.c:1061 uvm_fault(fffffd807effa170,20000000,2,1) at uvm_fault+0xa41 sys/uvm/uvm_fault.c:1073 uvm_fault_wire(fffffd807effa170,20000000,20002000,1) at uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1342 uvm_map_pageable_wire(fffffd807effa170,fffffd806bdf7600,fffffd806b9f7588,283,ffffffff8117aa5e,0) at uvm_map_pageable_wire+0x30d sys/uvm/uvm_map.c:2367 sys_mlock(ffff8000ffff4020,ffff800022ad8b48,ffff800022ad8b90) at sys_mlock+0x180 sys/uvm/uvm_mmap.c:772 syscall(ffff800022ad8c10) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022ad8c10) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xac6bb027790, count: -14