witness: lock order reversal: 1st 0xfffffd807effab98 vmmaplk (&map->lock) 2nd 0xfffffd8078795808 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_get+0x276 uvm_vnode_lock sys/uvm/uvm_vnode.c:1499 [inline] #5 uvn_get+0x276 sys/uvm/uvm_vnode.c:993 #6 uvm_fault+0xa41 sys/uvm/uvm_fault.c:1073 #7 uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1342 #8 uvm_map_pageable_wire+0x30d sys/uvm/uvm_map.c:2367 #9 sys_mlock+0x180 sys/uvm/uvm_mmap.c:772 #10 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 #11 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(fffffd8078795808,9,0) at witness_checkorder+0xf5a witness_debugger sys/kern/subr_witness.c:2490 [inline] witness_checkorder(fffffd8078795808,9,0) at witness_checkorder+0xf5a sys/kern/subr_witness.c:1087 rw_enter(fffffd80787957f8,81) at rw_enter+0xd4 rrw_enter(fffffd80787957f8,81) at rrw_enter+0x88 sys/kern/kern_rwlock.c:462 VOP_LOCK(fffffd806e3d09c8,81) at VOP_LOCK+0x4b sys/kern/vfs_vops.c:614 vn_lock(fffffd806e3d09c8,81) at vn_lock+0x6c sys/kern/vfs_vnops.c:575 uvn_get(fffffd806e3d7900,0,ffff8000222d4cb8,ffff8000222d4c54,0,0) at uvn_get+0x276 uvm_vnode_lock sys/uvm/uvm_vnode.c:1499 [inline] uvn_get(fffffd806e3d7900,0,ffff8000222d4cb8,ffff8000222d4c54,0,0) at uvn_get+0x276 sys/uvm/uvm_vnode.c:993 uvm_fault(fffffd807effab80,20ffc000,2,2) at uvm_fault+0xa41 sys/uvm/uvm_fault.c:1073 uvm_fault_wire(fffffd807effab80,20ffc000,20ffd000,2) at uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1342 uvm_map_pageable_wire(fffffd807effab80,fffffd806a865ca8,fffffd806a865ab0,1fb,ffffffff8235a62e,0) at uvm_map_pageable_wire+0x30d sys/uvm/uvm_map.c:2367 sys_mlock(ffff80002121b4b0,ffff8000222d4e98,ffff8000222d4ee0) at sys_mlock+0x180 sys/uvm/uvm_mmap.c:772 syscall(ffff8000222d4f60) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000222d4f60) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6ff88b0d2c0, count: -13 ddb{0}> show registers rdi 0x3 rsi 0x40000 acpi_pdirpa+0x2be68 rbp 0xffff8000222d4790 rbx 0x3 rdx 0xffff800000b06f80 rcx 0x3 rax 0x3ffff acpi_pdirpa+0x2be67 r8 0xffffffff823582d3 witness_checkorder+0xf33 r9 0x5 r10 0x6635744c30f7edb0 r11 0x100c6a7ded5e410f r12 0xffffffff828c5430 w_lodata+0x54220 r13 0 r14 0xffffffff828b3c60 w_lodata+0x42a50 r15 0xfffffd8002ce5500 rip 0xffffffff81f33568 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000222d4780 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.1) pid=180669 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80002121a2c0,0xffffffff828de248 process=0xffff8000224cd098 user=0xffff8000222d0000, vmspace=0xfffffd807effab80 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 11562 433550 50430 0 7 0 syz-executor.1 *11562 180669 50430 0 7 0x4000000 syz-executor.1 72504 264075 0 0 3 0x14280 nfsidl nfsio 92990 459 0 0 3 0x14280 nfsidl nfsio 3235 375971 0 0 3 0x14280 nfsidl nfsio 1364 167772 0 0 3 0x14280 nfsidl nfsio 28169 80233 0 0 3 0x14280 nfsidl nfsio 8931 82814 0 0 3 0x14280 nfsidl nfsio 74707 382268 0 0 3 0x14280 nfsidl nfsio 28049 82107 0 0 3 0x14280 nfsidl nfsio 94917 397730 0 0 3 0x14280 nfsidl nfsio 86367 65525 0 0 3 0x14280 nfsidl nfsio 91335 451024 0 0 3 0x14280 nfsidl nfsio 1563 73849 0 0 3 0x14280 nfsidl nfsio 49665 284554 0 0 3 0x14280 nfsidl nfsio 69732 9952 0 0 3 0x14280 nfsidl nfsio 26056 522017 0 0 3 0x14280 nfsidl nfsio 62848 480891 0 0 3 0x14280 nfsidl nfsio 17022 452986 0 0 3 0x14280 nfsidl nfsio 89223 411915 0 0 3 0x14280 nfsidl nfsio 98245 116344 0 0 3 0x14280 nfsidl nfsio 86255 206042 0 0 3 0x14280 nfsidl nfsio 50430 78637 8546 0 3 0x82 nanosleep syz-executor.1 60266 291351 8546 0 3 0x2 biowait syz-executor.0 8546 110510 63816 0 3 0x82 nanosleep syz-fuzzer 8546 520845 63816 0 3 0x4000082 nanosleep syz-fuzzer 8546 455592 63816 0 3 0x4000082 thrsleep syz-fuzzer 8546 101777 63816 0 3 0x4000082 thrsleep syz-fuzzer 8546 449698 63816 0 3 0x4000082 thrsleep syz-fuzzer 8546 241486 63816 0 3 0x4000082 thrsleep syz-fuzzer 8546 2245 63816 0 3 0x4000082 thrsleep syz-fuzzer 8546 168271 63816 0 3 0x4000082 thrsleep syz-fuzzer 8546 166025 63816 0 3 0x4000082 kqread syz-fuzzer 63816 27407 18440 0 3 0x10008a pause ksh 18440 283413 15444 0 3 0x92 select sshd 86013 204648 1 0 3 0x100083 ttyin getty 15444 244865 1 0 3 0x80 select sshd 52659 177136 4803 74 3 0x100092 bpf pflogd 4803 160358 1 0 3 0x80 netio pflogd 81749 423794 51944 73 3 0x100090 kqread syslogd 51944 227282 1 0 3 0x100082 netio syslogd 74408 235424 1 77 3 0x100090 poll dhclient 28739 242170 1 0 3 0x80 poll dhclient 78125 505043 0 0 3 0x14200 bored smr 37173 474312 0 0 3 0x14200 pgzero zerothread 34861 394953 0 0 3 0x14200 aiodoned aiodoned 785 348206 0 0 3 0x14200 syncer update 73597 7918 0 0 3 0x14200 cleaner cleaner 44087 482370 0 0 3 0x14200 reaper reaper 18723 56646 0 0 3 0x14200 pgdaemon pagedaemon 65092 305217 0 0 3 0x14200 bored crynlk 54140 431157 0 0 3 0x14200 bored crypto 77310 330041 0 0 3 0x14200 bored viomb 48113 176580 0 0 3 0x40014200 acpi0 acpi0 36360 261829 0 0 3 0x40014200 idle1 19370 177416 0 0 3 0x14200 bored softnet 68217 121199 0 0 3 0x14200 bored systqmp 47181 412912 0 0 3 0x14200 bored systq 98828 384091 0 0 3 0x40014200 bored softclock 21513 232637 0 0 3 0x40014200 idle0 1 433370 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 11562 (syz-executor.1) thread 0xffff80002121b4b0 (180669) shared rwlock vmmaplk r = 0 (0xfffffd807effab98) #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 (0xffffffff828db810) #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 60266 (syz-executor.0) thread 0xffff800021272f78 (291351) exclusive rrwlock inode r = 0 (0xfffffd80787955e8) #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 (0xfffffd806e37d098) #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 cache_lookup+0x2b4 sys/kern/vfs_cache.c:224 #7 ufs_lookup+0x1c0 sys/ufs/ufs/ufs_lookup.c:162 #8 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #9 vfs_lookup+0x708 sys/kern/vfs_lookup.c:568 #10 namei+0x5f7 sys/kern/vfs_lookup.c:249 #11 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848 #12 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #12 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 #13 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9497 6429K 6438K 78643K 13910 0 pcb 13 8K 8K 78643K 818 0 rtable 105 3K 3K 78643K 199 0 ifaddr 44 10K 10K 78643K 45 0 counters 43 33K 33K 78643K 43 0 ioctlops 0 0K 4K 78643K 2243 0 iov 0 0K 12K 78643K 794 0 mount 1 1K 1K 78643K 1 0 vnodes 1226 77K 77K 78643K 3293 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 213 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 188 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1825 197K 290K 78643K 13109 0 file desc 5 13K 25K 78643K 39065 0 sigio 2 0K 1K 78643K 1155 0 proc 60 63K 95K 78643K 448 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 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 665 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 177 27K 27K 78643K 85907 0 UVM aobj 131 4K 4K 78643K 171 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 6 0K 0K 78643K 10 0 temp 66 3955K 4019K 78643K 85878 0 kqueue 3 4K 9K 78643K 835 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 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 45 0 1 2 0 2 2 0 8 0 unpcb 120 15625 0 15615 1 0 1 1 0 8 0 syncache 296 4 0 4 1 1 0 1 0 8 0 tcpcb 736 471 0 467 14 13 1 4 0 8 0 inpcb 296 2010 0 2003 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 kcovpl 48 2 0 0 1 0 1 1 0 8 0 pffrag 232 10 0 9 2 1 1 1 0 482 0 pffrnode 88 6 0 5 2 1 1 1 0 8 0 pffrent 40 150 0 149 2 1 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 pfstitem 24 35 0 27 1 0 1 1 0 8 0 pfstkey 112 35 0 27 1 0 1 1 0 8 0 pfstate 328 35 0 27 3 2 1 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 256 189 0 0 12 0 12 12 0 8 0 art_table 32 190 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 semapl 112 186 0 176 1 0 1 1 0 8 0 shmpl 112 168 0 40 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 43109 0 41704 90 2 88 89 0 8 0 ffsino 272 43109 0 41704 94 0 94 94 0 8 0 nchpl 144 92242 0 90639 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 226425 0 226425 1 0 1 1 0 8 1 percpumem 16 32 0 0 1 0 1 1 0 8 0 scxspl 216 253228 0 253227 6 5 1 5 0 8 0 plimitpl 152 150 0 142 1 0 1 1 0 8 0 sigapl 424 39301 0 39249 6 0 6 6 0 8 0 futexpl 56 146637 0 146637 1 0 1 1 0 8 1 knotepl 112 1049 0 1029 1 0 1 1 0 8 0 kqueuepl 152 2759 0 2757 1 0 1 1 0 8 0 pipepl 304 76 0 65 1 0 1 1 0 8 0 fdescpl 496 39265 0 39249 3 0 3 3 0 8 0 filepl 152 101965 0 101861 5 0 5 5 0 8 0 lockfpl 104 1437 0 1436 1 0 1 1 0 8 0 lockfspl 48 635 0 634 1 0 1 1 0 8 0 sessionpl 144 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 8360 0 8351 1 0 1 1 0 8 0 zombiepl 144 39249 0 39249 1 0 1 1 0 8 1 processpl 1056 39301 0 39249 4 0 4 4 0 8 0 procpl 656 84736 0 84675 7 1 6 6 0 8 0 sockpl 400 17654 0 17635 30 27 3 4 0 8 1 mcl64k 65536 25 0 0 3 0 3 3 0 8 0 mcl16k 16384 20 0 0 3 0 3 3 0 8 0 mcl12k 12288 41 0 0 2 0 2 2 0 8 0 mcl9k 9216 49 0 0 3 1 2 2 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 11 0 0 1 0 1 1 0 8 0 mcl2k 2048 126 0 0 10 0 10 10 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 996 0 0 14 1 13 14 0 8 0 bufpl 280 43726 0 37477 447 0 447 447 0 8 0 anonpl 16 2567422 0 2562577 45 21 24 35 0 124 0 amapchunkpl 152 131548 0 131397 10 3 7 7 0 158 0 amappl16 192 126924 0 126766 34 25 9 21 0 8 1 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 25 0 20 1 0 1 1 0 8 0 amappl13 168 19451 0 19448 1 0 1 1 0 8 0 amappl12 160 17 0 15 1 0 1 1 0 8 0 amappl11 152 61 0 45 1 0 1 1 0 8 0 amappl10 144 11 0 8 1 0 1 1 0 8 0 amappl9 136 19990 0 19987 1 0 1 1 0 8 0 amappl8 128 812 0 693 4 0 4 4 0 8 0 amappl7 120 19867 0 19859 1 0 1 1 0 8 0 amappl6 112 68 0 58 1 0 1 1 0 8 0 amappl5 104 20435 0 20415 1 0 1 1 0 8 0 amappl4 96 619 0 590 1 0 1 1 0 8 0 amappl3 88 41036 0 41027 1 0 1 1 0 8 0 amappl2 80 275186 0 275119 3 0 3 3 0 8 0 amappl1 72 1092607 0 1092126 27 17 10 19 0 8 0 amappl 80 84989 0 84940 2 0 2 2 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 64 170 0 40 3 0 3 3 0 8 0 uaddrrnd 24 39265 0 39249 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 39265 0 39249 1 0 1 1 0 8 0 vmmpekpl 168 173437 0 173412 2 0 2 2 0 8 0 vmmpepl 168 4836131 0 4834683 153 83 70 79 0 357 0 vmsppl 368 39264 0 39249 2 0 2 2 0 8 0 pdppl 4096 78537 0 78498 57 16 41 45 0 8 2 pvpl 32 7663187 0 7655063 231 160 71 114 0 265 0 pmappl 232 39264 0 39249 2 1 1 2 0 8 0 extentpl 40 57 0 39 1 0 1 1 0 8 0 phpool 112 345 0 62 9 0 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 witness_checkorder(fffffd8078795808,9,0) at witness_checkorder+0xf5a witness_debugger sys/kern/subr_witness.c:2490 [inline] witness_checkorder(fffffd8078795808,9,0) at witness_checkorder+0xf5a sys/kern/subr_witness.c:1087 rw_enter(fffffd80787957f8,81) at rw_enter+0xd4 rrw_enter(fffffd80787957f8,81) at rrw_enter+0x88 sys/kern/kern_rwlock.c:462 VOP_LOCK(fffffd806e3d09c8,81) at VOP_LOCK+0x4b sys/kern/vfs_vops.c:614 vn_lock(fffffd806e3d09c8,81) at vn_lock+0x6c sys/kern/vfs_vnops.c:575 uvn_get(fffffd806e3d7900,0,ffff8000222d4cb8,ffff8000222d4c54,0,0) at uvn_get+0x276 uvm_vnode_lock sys/uvm/uvm_vnode.c:1499 [inline] uvn_get(fffffd806e3d7900,0,ffff8000222d4cb8,ffff8000222d4c54,0,0) at uvn_get+0x276 sys/uvm/uvm_vnode.c:993 uvm_fault(fffffd807effab80,20ffc000,2,2) at uvm_fault+0xa41 sys/uvm/uvm_fault.c:1073 uvm_fault_wire(fffffd807effab80,20ffc000,20ffd000,2) at uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1342 uvm_map_pageable_wire(fffffd807effab80,fffffd806a865ca8,fffffd806a865ab0,1fb,ffffffff8235a62e,0) at uvm_map_pageable_wire+0x30d sys/uvm/uvm_map.c:2367 sys_mlock(ffff80002121b4b0,ffff8000222d4e98,ffff8000222d4ee0) at sys_mlock+0x180 sys/uvm/uvm_mmap.c:772 syscall(ffff8000222d4f60) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000222d4f60) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6ff88b0d2c0, count: -13 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d68ff0) 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(ffffffff828db608) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828db608) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff8000212c7870) at syscall+0x3fd mi_syscall sys/sys/syscall_mi.h:93 [inline] syscall(ffff8000212c7870) at syscall+0x3fd sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe4b50, count: -6