witness: lock order reversal: 1st 0xfffffd8069f1f030 vmmaplk (&map->lock) 2nd 0xfffffd8069866bf8 fdlock (&newfdp->fd_fd.fd_lock) lock order "&newfdp->fd_fd.fd_lock"(rwlock) -> "&map->lock"(rwlock) first seen at: #0 rw_enter_read+0x66 sys/kern/kern_rwlock.c:112 #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1758 #2 uvm_fault_check+0x3a sys/uvm/uvm_fault.c:674 #3 uvm_fault+0x102 sys/uvm/uvm_fault.c:602 #4 kpageflttrap+0x209 #5 kerntrap+0xef sys/arch/amd64/amd64/trap.c:318 #6 alltraps_kern_meltdown+0x7b #7 copyout+0x53 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 lock order "&map->lock"(rwlock) -> "&newfdp->fd_fd.fd_lock"(rwlock) first seen at: #0 rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 #1 fill_file+0xad2 sys/kern/kern_sysctl.c:1304 #2 sysctl_file+0xe77 sys/kern/kern_sysctl.c:1428 #3 kern_sysctl+0xfd sys/kern/kern_sysctl.c:449 #4 sys_sysctl+0x209 sys/kern/kern_sysctl.c:249 #5 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #6 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:440 witness_checkorder(fffffd8069866bf8,9,0) at witness_checkorder+0x10b7 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(fffffd8069866bf8,9,0) at witness_checkorder+0x10b7 sys/kern/subr_witness.c:1105 rw_enter_write(fffffd8069866be8) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 fill_file(ffff800000c34c00,fffffd807e9a9ac0,fffffd8069866ba0,0,0,ffff8000fffec448,1e2078fb5db4fb07,ff09,ffff8000294e1270) at fill_file+0xad2 sys/kern/kern_sysctl.c:1304 sysctl_file(ffff8000295048e8,4,20000080,ffff800029504918,ffff8000294e1270) at sysctl_file+0xe77 sys/kern/kern_sysctl.c:1428 kern_sysctl(ffff8000295048e4,5,20000080,ffff800029504918,0,0,2d0ffaf8c5139c09) at kern_sysctl+0xfd sys/kern/kern_sysctl.c:449 sys_sysctl(ffff8000294e1270,ffff800029504988,ffff8000295049e0) at sys_sysctl+0x209 sys/kern/kern_sysctl.c:249 syscall(ffff800029504a50) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800029504a50) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x58a06bb9bc0, count: -9 ddb{1}> show registers rdi 0x3 rsi 0x40000 acpi_pdirpa+0x2be68 rbp 0xffff800029504250 rbx 0x3 rdx 0xffff800000bc6b40 rcx 0 rax 0x3ffff acpi_pdirpa+0x2be67 r8 0xffff8000295041c0 r9 0x8080808080808080 r10 0xee9ada323968fb39 r11 0x241d5e887523aae5 r12 0xffffffff82aab940 w_lodata+0x4dfd0 r13 0 r14 0xffffffff82aa50c0 w_lodata+0x47750 r15 0xfffffd8002f62c80 rip 0xffffffff8138d658 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800029504240 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.2) pid=100272 stat=onproc flags process=10 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000294e07f0,0xffff8000294e0d40 process=0xffff8000fffef628 user=0xffff8000294ff000, vmspace=0xfffffd8069f1f018 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 58248 314053 89917 32767 2 0x10 syz-executor.6 58248 259759 89917 32767 2 0x4000010 syz-executor.6 33207 193128 14547 32767 2 0x10 syz-executor.0 26854 178366 58020 32767 2 0x10 syz-executor.5 26854 340884 58020 32767 3 0x4000090 fsleep syz-executor.5 77181 404526 19850 32767 7 0x10 syz-executor.3 77181 115064 19850 32767 3 0x4000090 lockf syz-executor.3 77181 110961 19850 32767 3 0x4000090 fsleep syz-executor.3 51546 52135 30786 32767 2 0x10 syz-executor.4 51546 268955 30786 32767 3 0x4000090 fsleep syz-executor.4 16697 184190 49249 32767 2 0x10 syz-executor.7 16697 521841 49249 32767 3 0x4000090 fsleep syz-executor.7 73254 268501 39806 32767 2 0x10 syz-executor.2 *73254 100272 39806 32767 7 0x4000010 syz-executor.2 18769 406705 0 0 3 0x14200 bored sosplice 58020 208995 58906 32767 3 0x90 nanoslp syz-executor.5 89917 233402 65997 32767 3 0x90 nanoslp syz-executor.6 49249 423572 84255 32767 3 0x90 nanoslp syz-executor.7 65997 290677 32085 0 3 0x82 wait syz-executor.6 84255 479721 32085 0 3 0x82 wait syz-executor.7 58906 498051 32085 0 3 0x82 wait syz-executor.5 30786 114555 64134 32767 3 0x90 nanoslp syz-executor.4 19850 469504 36343 32767 3 0x90 nanoslp syz-executor.3 39806 136798 94844 32767 3 0x90 nanoslp syz-executor.2 64134 19605 32085 0 3 0x82 wait syz-executor.4 36343 201610 32085 0 3 0x82 wait syz-executor.3 94844 437717 32085 0 3 0x82 wait syz-executor.2 14547 494604 40270 32767 3 0x90 nanoslp syz-executor.0 15306 393470 43908 32767 3 0x10 biowait syz-executor.1 43908 253888 32085 0 3 0x82 wait syz-executor.1 40270 189934 32085 0 3 0x82 wait syz-executor.0 32085 435142 3394 0 3 0x82 thrsleep syz-fuzzer 32085 206631 3394 0 3 0x4000082 nanoslp syz-fuzzer 32085 260793 3394 0 3 0x4000082 nanoslp syz-fuzzer 32085 15159 3394 0 3 0x4000082 kqread syz-fuzzer 32085 262389 3394 0 3 0x4000082 thrsleep syz-fuzzer 32085 218168 3394 0 3 0x4000082 thrsleep syz-fuzzer 32085 117211 3394 0 3 0x4000082 thrsleep syz-fuzzer 32085 409445 3394 0 3 0x4000082 thrsleep syz-fuzzer 3394 433194 17802 0 3 0x10008a sigsusp ksh 17802 192868 19632 0 3 0x9a kqread sshd 86214 441613 1 0 3 0x100083 ttyin getty 19632 524090 1 0 3 0x88 kqread sshd 38172 46138 7994 73 3 0x1100090 kqread syslogd 7994 337793 1 0 3 0x100082 netio syslogd 99661 24944 1 0 3 0x100080 kqread resolvd 98785 126821 36786 77 3 0x100092 kqread dhcpleased 51612 139707 36786 77 3 0x100092 kqread dhcpleased 36786 349187 1 0 3 0x80 kqread dhcpleased 18902 2496 0 0 3 0x14200 bored smr 95676 376921 0 0 2 0x14200 zerothread 66128 148413 0 0 3 0x14200 aiodoned aiodoned 19142 75155 0 0 3 0x14200 syncer update 76678 326008 0 0 3 0x14200 cleaner cleaner 85989 341260 0 0 3 0x14200 reaper reaper 95152 181848 0 0 3 0x14200 pgdaemon pagedaemon 45515 358826 0 0 3 0x14200 bored viomb 70468 312760 0 0 3 0x40014200 acpi0 acpi0 26430 56517 0 0 3 0x40014200 idle1 78780 182528 0 0 3 0x14200 bored softnet 12955 43418 0 0 3 0x14200 bored systqmp 41712 513772 0 0 3 0x14200 bored systq 97790 491144 0 0 3 0x40014200 bored softclock 68119 495618 0 0 3 0x40014200 idle0 1 114232 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 73254 (syz-executor.2) thread 0xffff8000294e1270 (100272) shared rwlock vmmaplk r = 0 (0xfffffd8069f1f030) #0 witness_lock+0x44d #1 uvm_vslock+0xc8 sys/uvm/uvm_glue.c:129 #2 sys_sysctl+0x2d8 sys/kern/kern_sysctl.c:240 #3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #4 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff82941f10) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 sys_sysctl+0x1b3 sys/kern/kern_sysctl.c:233 #3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff829de988) #0 witness_lock+0x44d #1 syscall+0x3ef mi_syscall sys/sys/syscall_mi.h:93 [inline] #1 syscall+0x3ef sys/arch/amd64/amd64/trap.c:585 #2 Xsyscall+0x128 Process 15306 (syz-executor.1) thread 0xffff8000ffff47e0 (393470) exclusive rrwlock inode r = 0 (0xfffffd8067f4e3c8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3101 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8069593e68) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3086 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10175 6407K 6419K 78643K 11265 0 pcb 13 8K 8K 78643K 13 0 rtable 242 7K 7K 78643K 405 0 ifaddr 81 16K 16K 78643K 82 0 sysctl 2 0K 0K 78643K 2 0 counters 56 35K 35K 78643K 56 0 ioctlops 0 0K 2K 78643K 59 0 iov 0 0K 16K 78643K 105 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1270 79K 79K 78643K 1341 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 24 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 108 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 25 93K 121K 78643K 2325 0 sigio 0 0K 0K 78643K 12 0 proc 56 74K 111K 78643K 638 0 subproc 104 6K 6K 78643K 104 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 2 0K 0K 78643K 304 0 in_multi 99 6K 6K 78643K 214 0 ether_multi 1 0K 0K 78643K 37 0 mrt 4 0K 0K 78643K 4 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 67 307K 307K 78643K 67 0 exec 0 0K 2K 78643K 680 0 tdb 3 0K 0K 78643K 3 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 334 85K 99K 78643K 29116 0 UVM aobj 60 6K 6K 78643K 74 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 96 0 NDP 11 0K 2K 78643K 27 0 temp 126 4708K 4771K 78643K 8712 0 kqueue 12 18K 22K 78643K 130 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 100 0 96 1 0 1 1 0 8 0 rtentry 112 114 0 2 4 0 4 4 0 8 0 unpcb 136 689 0 674 2 1 1 2 0 8 0 syncache 296 51 0 51 6 5 1 1 0 8 1 tcpqe 32 12 0 12 3 2 1 1 0 8 1 tcpcb 736 539 0 506 6 2 4 4 0 8 0 arp 120 18 0 0 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 1 0 1 1 1 0 1 0 8 0 inpcb 304 1084 0 1059 4 2 2 2 0 8 0 rttmr 72 4 0 3 1 0 1 1 0 8 0 ip6q 72 1 0 0 1 0 1 1 0 8 0 ip6af 40 1 0 0 1 0 1 1 0 8 0 nd6 48 26 0 1 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 518 0 13 33 1 32 33 0 8 0 art_table 32 519 0 13 5 0 5 5 0 8 0 art_node 16 113 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 104 0 86 1 0 1 1 0 8 0 semapl 112 106 0 96 1 0 1 1 0 8 0 shmpl 112 71 0 14 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3974 0 2537 91 0 91 91 0 8 0 ffsino 272 3974 0 2537 97 0 97 97 0 8 0 nchpl 144 6716 0 5057 62 0 62 62 0 8 0 uvmvnodes 80 4087 0 0 84 0 84 84 0 8 0 vnodes 224 4087 0 0 241 0 241 241 0 8 0 namei 1024 18192 0 18191 5 4 1 2 0 8 0 percpumem 16 40 0 0 1 0 1 1 0 8 0 scxspl 216 24776 0 24775 15 14 1 8 0 8 0 plimitpl 152 231 0 209 2 1 1 2 0 8 0 sigapl 424 2603 0 2552 7 0 7 7 0 8 0 futexpl 64 12229 0 12225 3 2 1 1 0 8 0 knotepl 120 339 0 0 11 0 11 11 0 8 0 kqueuepl 216 284 0 274 1 0 1 1 0 8 0 pipepl 336 254 0 226 3 0 3 3 0 8 0 fdescpl 496 2588 0 2552 7 1 6 6 0 8 0 filepl 152 7738 0 7493 12 2 10 11 0 8 0 lockfpl 104 210 0 206 1 0 1 1 0 8 0 lockfspl 48 71 0 68 1 0 1 1 0 8 0 sessionpl 144 23 0 7 1 0 1 1 0 8 0 pgrppl 48 27 0 11 1 0 1 1 0 8 0 ucredpl 96 1534 0 1516 1 0 1 1 0 8 0 zombiepl 144 2552 0 2552 1 0 1 1 0 8 1 processpl 1064 2603 0 2552 5 1 4 4 0 8 0 procpl 672 5132 0 5067 8 2 6 7 0 8 0 sosppl 168 33 0 32 2 1 1 1 0 8 0 sockpl 480 1881 0 1837 13 7 6 7 0 8 0 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 8 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 14 0 0 2 0 2 2 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 199 0 0 17 0 17 17 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 528 0 0 30 0 30 30 0 8 0 bufpl 288 7178 0 843 453 0 453 453 0 8 0 anonpl 24 727153 0 714760 162 70 92 156 0 186 0 amapchunkpl 152 70576 0 69797 54 21 33 44 0 158 2 amappl16 200 10168 0 9895 82 66 16 58 0 8 0 amappl15 192 376 0 370 1 0 1 1 0 8 0 amappl14 184 9 0 3 1 0 1 1 0 8 0 amappl13 176 342 0 338 1 0 1 1 0 8 0 amappl12 168 26 0 24 1 0 1 1 0 8 0 amappl11 160 603 0 586 1 0 1 1 0 8 0 amappl10 152 331 0 323 1 0 1 1 0 8 0 amappl9 144 739 0 733 1 0 1 1 0 8 0 amappl8 136 1179 0 1112 5 2 3 3 0 8 0 amappl7 128 671 0 655 1 0 1 1 0 8 0 amappl6 120 476 0 453 2 1 1 2 0 8 0 amappl5 112 2673 0 2647 1 0 1 1 0 8 0 amappl4 104 1365 0 1339 1 0 1 1 0 8 0 amappl3 96 198 0 185 1 0 1 1 0 8 0 amappl2 88 796 0 753 3 1 2 3 0 8 0 amappl1 80 45508 0 44865 18 4 14 18 0 8 0 amappl 88 28576 0 28319 7 0 7 7 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 73 0 14 2 0 2 2 0 8 0 uaddrrnd 24 2588 0 2552 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2588 0 2552 1 0 1 1 0 8 0 vmmpekpl 168 18505 0 18456 3 0 3 3 0 8 0 vmmpepl 168 233057 0 230469 167 49 118 148 0 357 2 vmsppl 368 2587 0 2552 4 0 4 4 0 8 0 rwobjpl 56 59847 0 54469 78 2 76 76 0 8 0 pdppl 4096 5183 0 5104 137 56 81 93 0 8 2 pvpl 32 1457914 0 1440102 287 83 204 274 0 265 38 pmappl 248 2587 0 2552 4 1 3 3 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 890 0 65 24 0 24 24 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff829baff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 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+0xb sys/dev/kcov.c:144 intr_handler(ffff800024689fe0,ffff800000077500) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb sys/dev/kcov.c:144 intr_handler(ffff80002468a140,ffff80000067b080) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff829de780) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829de780) at __mp_lock+0x129 sys/kern/kern_lock.c:147 syscall(ffff80002468a310) at syscall+0x3ef mi_syscall sys/sys/syscall_mi.h:93 [inline] syscall(ffff80002468a310) at syscall+0x3ef sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd3a30, 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:440 witness_checkorder(fffffd8069866bf8,9,0) at witness_checkorder+0x10b7 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(fffffd8069866bf8,9,0) at witness_checkorder+0x10b7 sys/kern/subr_witness.c:1105 rw_enter_write(fffffd8069866be8) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 fill_file(ffff800000c34c00,fffffd807e9a9ac0,fffffd8069866ba0,0,0,ffff8000fffec448,1e2078fb5db4fb07,ff09,ffff8000294e1270) at fill_file+0xad2 sys/kern/kern_sysctl.c:1304 sysctl_file(ffff8000295048e8,4,20000080,ffff800029504918,ffff8000294e1270) at sysctl_file+0xe77 sys/kern/kern_sysctl.c:1428 kern_sysctl(ffff8000295048e4,5,20000080,ffff800029504918,0,0,2d0ffaf8c5139c09) at kern_sysctl+0xfd sys/kern/kern_sysctl.c:449 sys_sysctl(ffff8000294e1270,ffff800029504988,ffff8000295049e0) at sys_sysctl+0x209 sys/kern/kern_sysctl.c:249 syscall(ffff800029504a50) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800029504a50) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x58a06bb9bc0, count: -9