kernel: protection fault trap, code=0 Stopped at pf_anchor_global_RB_REMOVE+0x81: movq 0(%r12),%r15 ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace pf_anchor_global_RB_REMOVE(ffffffff83a61578,ffff80000163b758) at pf_anchor_global_RB_REMOVE+0x81 sys/net/pf_ruleset.c:82 pf_remove_if_empty_ruleset(ffff80000163bbe8) at pf_remove_if_empty_ruleset+0x12d sys/net/pf_ruleset.c:301 pfi_dynaddr_setup(ffff80000156c790,0,1) at pfi_dynaddr_setup+0x671 sys/net/pf_if.c:508 pf_addr_setup(ffffffff83a61a10,ffff80000156c790,0) at pf_addr_setup+0x46 sys/net/pf_ioctl.c:948 pfioctl(24900,cd604404,ffff8000015fe000,2,ffff80003c3efcb8) at pfioctl+0xa370 sys/net/pf_ioctl.c:2382 VOP_IOCTL(fffffd80616a7108,cd604404,ffff8000015fe000,2,fffffd80097fd478,ffff80003c3efcb8) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806c5d6228,cd604404,ffff8000015fe000,ffff80003c3efcb8) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537 sys_ioctl(ffff80003c3efcb8,ffff80003c3e12d0,ffff80003c3e1220) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c3e12d0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3e12d0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x37fdf90b5e0, count: -10 ddb{0}> show registers rdi 0xffff80002ff9d000 rsi 0x19c9 __ALIGN_SIZE+0x9c9 rbp 0xffff80003c3e0c90 rbx 0xffffffff83a61578 pf_anchors rdx 0xffff80002ff9d000 rcx 0x19c8 __ALIGN_SIZE+0x9c8 rax 0xffffffff829ca71f pf_anchor_global_RB_REMOVE+0x2f r8 0x3fc r9 0x8080808080808080 r10 0x6dee68b8289980c5 r11 0xabee8b0596849062 r12 0x9cc2d78b8f0106fe r13 0x1 r14 0xffff80000163b758 r15 0x6be1ac8e34ba5ead rip 0xffffffff829ca771 pf_anchor_global_RB_REMOVE+0x81 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff80003c3e0c40 ss 0x10 pf_anchor_global_RB_REMOVE+0x81: movq 0(%r12),%r15 ddb{0}> show proc PROC (syz-executor) tid=411487 pid=63285 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffeaa80,0xffffffff83ac2338 process=0xffff80003c48eb78 user=0xffff80003c3dc000, vmspace=0xfffffd806e8c07b0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 63285 317972 37331 0 2 0 syz-executor *63285 411487 37331 0 7 0x4000000 syz-executor 55120 159697 22147 0 7 0 syz-executor 55120 275940 22147 0 3 0x4000080 fsleep syz-executor 74321 452470 32324 0 2 0 syz-executor 74321 120918 32324 0 3 0x4000080 fsleep syz-executor 82418 22923 77469 0 2 0 syz-executor 82418 261876 77469 0 3 0x4000080 fsleep syz-executor 39689 507933 5888 0 2 0 syz-executor 39689 172185 5888 0 3 0x4000080 fsleep syz-executor 43325 71469 43139 0 2 0 syz-executor 43325 172099 43139 0 3 0x4000080 fsleep syz-executor 82837 11885 83639 0 3 0x80 nanoslp syz-executor 82837 473251 83639 0 3 0x4000080 msgwait syz-executor 82837 44421 83639 0 3 0x4000080 fsleep syz-executor 47747 247005 0 0 3 0x14280 nfsidl nfsio 92698 183136 0 0 3 0x14280 nfsidl nfsio 38134 424592 0 0 3 0x14280 nfsidl nfsio 22838 144227 0 0 3 0x14280 nfsidl nfsio 14981 344383 0 0 3 0x14280 nfsidl nfsio 51557 392747 0 0 3 0x14280 nfsidl nfsio 5125 476597 0 0 3 0x14280 nfsidl nfsio 71045 517953 0 0 3 0x14280 nfsidl nfsio 77475 522435 0 0 3 0x14280 nfsidl nfsio 15009 186249 0 0 3 0x14280 nfsidl nfsio 37172 172211 0 0 3 0x14280 nfsidl nfsio 57155 360847 0 0 3 0x14280 nfsidl nfsio 98307 484729 0 0 3 0x14280 nfsidl nfsio 29071 319489 0 0 3 0x14280 nfsidl nfsio 88741 274211 0 0 3 0x14280 nfsidl nfsio 38344 11850 0 0 3 0x14280 nfsidl nfsio 42703 166229 0 0 3 0x14280 nfsidl nfsio 86048 418966 0 0 3 0x14280 nfsidl nfsio 30049 312026 0 0 3 0x14280 nfsidl nfsio 66621 409092 0 0 3 0x14280 nfsidl nfsio 45704 214225 1 0 3 0x100083 ttyin getty 54567 236515 0 0 3 0x14200 acct acct 37331 245783 23879 0 3 0x82 nanoslp syz-executor 83639 358988 23879 0 3 0x82 nanoslp syz-executor 43139 139317 23879 0 2 0xc82 syz-executor 5888 421200 23879 0 2 0xc82 syz-executor 32324 399881 23879 0 2 0xc82 syz-executor 77469 118018 23879 0 2 0xc82 syz-executor 22147 195394 23879 0 2 0xc82 syz-executor 86159 445009 23879 0 3 0x82 wait syz-executor 23879 432377 13212 0 3 0x82 kqread syz-executor 13212 428659 1016 0 3 0x10008a sigsusp ksh 1016 233769 22008 0 3 0x98 kqread sshd-session 22008 115921 97306 0 3 0x92 kqread sshd-session 97306 216225 1 0 3 0x88 kqread sshd 67596 360209 3183 74 3 0x1100092 bpf pflogd 3183 243186 1 0 3 0x80 sbwait pflogd 53556 42892 32226 73 3 0x1100090 kqread syslogd 32226 149578 1 0 3 0x100082 sbwait syslogd 28517 418926 1 0 3 0x100080 kqread resolvd 23153 25136 9009 77 3 0x100092 kqread dhcpleased 99494 491064 9009 77 3 0x100092 kqread dhcpleased 9009 227235 1 0 3 0x80 kqread dhcpleased 42202 308267 0 0 2 0x14200 smr 8217 503954 0 0 2 0x14200 zerothread 81436 43472 0 0 3 0x14200 aiodoned aiodoned 90262 254557 0 0 3 0x14200 syncer update 767 310166 0 0 3 0x14200 cleaner cleaner 6157 152322 0 0 3 0x14200 reaper reaper 62643 132419 0 0 3 0x14200 pgdaemon pagedaemon 92590 279278 0 0 3 0x14200 bored viomb 69374 441668 0 0 3 0x40014200 acpi0 acpi0 79775 305915 0 0 3 0x40014200 idle1 7086 232604 0 0 3 0x14200 bored softnet1 41183 38674 0 0 2 0x14200 softnet0 39976 83268 0 0 3 0x14200 bored systqmp 13561 236366 0 0 3 0x14200 bored systq 17790 471620 0 0 2 0x14200 softclockmp 95585 162767 0 0 3 0x40014200 tmoslp softclock 9811 368646 0 0 3 0x40014200 idle0 1 461712 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 63285 (syz-executor) thread 0xffff80003c3efcb8 (411487) exclusive rwlock pf_lock r = 0 (0xffffffff838eab08) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 pfioctl+0x9cc9 sys/net/pf_ioctl.c:2336 #3 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #4 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537 #5 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 exclusive rwlock netlock r = 0 (0xffffffff8388bae0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 pfioctl+0x9cb4 sys/net/pf_ioctl.c:2335 #3 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #4 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537 #5 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 exclusive rwlock pfioctl_rw r = 0 (0xffffffff838eab98) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 pfioctl+0x1d4 sys/net/pf_ioctl.c:2075 #3 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #4 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537 #5 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8397ea40) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 vn_ioctl+0x4d sys/kern/vfs_vnops.c:520 #2 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #3 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #4 Xsyscall+0x128 Process 55120 (syz-executor) thread 0xffff8000fffeb248 (159697) exclusive rwlock uobjlk r = 0 (0xfffffd806d2937e8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 uvm_fault+0x1e5 sys/uvm/uvm_fault.c:649 #3 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #4 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806c5396d8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11079 12294K 12475K 166960K 13142 0 pcb 18 14K 16K 166960K 175 0 rtable 226 7K 8K 166960K 409 0 pf 36 18K 23K 166960K 95 0 ifaddr 37 6K 7K 166960K 59 0 ifgroup 51 2K 2K 166960K 92 0 sysctl 4 1K 9K 166960K 10 0 counters 68 36K 37K 166960K 94 0 ioctlops 1 4K 4K 166960K 1594 0 iov 0 0K 16K 166960K 23 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1382 87K 88K 166960K 1943 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 94 0 dirhash 12 2K 3K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 106K 166960K 605 0 sigio 0 0K 0K 166960K 5 0 proc 72 115K 164K 166960K 627 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 91 0 in_multi 78 5K 7K 166960K 116 0 ether_multi 1 0K 0K 166960K 2 0 mrt 3 0K 0K 166960K 16 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 418 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 242 159K 173K 166960K 7246 0 UVM aobj 12 2K 2K 166960K 12 0 pinsyscall 43 86K 104K 166960K 1739 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 16 0 NDP 11 0K 1K 166960K 39 0 temp 54 9074K 9141K 166960K 24684 0 kqueue 16 26K 32K 166960K 105 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 97 0 94 2 1 1 2 0 8 0 rtentry 176 123 0 23 6 0 6 6 0 8 0 unpcb 144 467 0 450 7 2 5 6 0 8 4 syncache 336 8 0 8 2 1 1 1 0 8 1 tcpcb 736 120 0 116 1 0 1 1 0 8 0 arp 136 20 0 3 1 0 1 1 0 8 0 inpcb 328 461 0 449 6 0 6 6 0 8 5 nd6 152 28 0 6 2 0 2 2 0 8 0 pkpcb 40 5 0 5 2 1 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 7 0 7 1 0 1 1 0 8 1 pppxif 1576 1 0 1 1 0 1 1 0 8 1 pfstscr 40 7 0 3 2 1 1 1 0 8 0 pffrag 232 11 0 3 1 0 1 1 0 482 0 pffrnode 88 11 0 3 1 0 1 1 0 8 0 pffrent 40 32 0 24 1 0 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 pfrktable 1344 2 1 2 2 1 1 1 0 8 1 pfstlim 224 1 0 1 1 1 0 1 0 8 0 pfanchor 1288 1 0 1 1 0 1 1 0 8 1 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 320 2 0 2 2 1 1 1 0 8 1 pfstitem 24 58 0 3 1 0 1 1 0 8 0 pfstkey 128 62 0 7 2 0 2 2 0 8 0 pfstate 448 59 0 5 6 0 6 6 0 8 0 pfrule 1360 24 0 18 2 1 1 2 0 8 0 rttmr 136 1 0 0 1 0 1 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 508 0 98 31 2 29 31 0 8 1 art_table 40 510 0 98 5 0 5 5 0 8 0 art_node 32 123 0 32 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 1 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 91 0 81 1 0 1 1 0 8 0 shmpl 112 9 0 0 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2502 0 1043 93 0 93 93 0 8 0 ffsino 296 2502 0 1043 114 0 114 114 0 8 0 nchpl 144 3358 0 1655 64 0 64 64 0 8 0 vnodes 216 2928 0 0 163 0 163 163 0 8 0 namei 1024 10637 0 10637 3 2 1 2 0 8 1 percpumem 16 62 0 13 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 49 0 24 3 0 3 3 0 8 1 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 11036 0 11036 8 7 1 5 1 8 1 plimitpl 152 70 0 53 1 0 1 1 0 8 0 sigapl 424 932 0 863 9 1 8 8 0 8 0 knotepl 120 535 0 0 17 0 17 17 0 8 0 kqueuepl 224 165 0 153 4 2 2 3 0 8 1 pipepl 344 145 0 117 3 0 3 3 0 8 0 fdescpl 528 895 0 863 3 0 3 3 0 8 0 filepl 160 4918 0 4693 17 3 14 15 0 8 4 lockfpl 104 321 0 318 1 0 1 1 0 8 0 lockfspl 48 110 0 107 1 0 1 1 0 8 0 sessionpl 144 33 0 24 1 0 1 1 0 8 0 pgrppl 48 47 0 30 1 0 1 1 0 8 0 ucredpl 104 862 0 848 1 0 1 1 0 8 0 zombiepl 144 864 0 863 2 1 1 1 0 8 0 processpl 1232 932 0 863 6 0 6 6 0 8 0 procpl 664 1704 0 1627 7 0 7 7 0 8 0 sockpl 752 1039 0 1007 18 8 10 16 0 8 6 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 113 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 25 0 0 3 0 3 3 0 8 0 mtagpl 96 40 0 0 1 0 1 1 0 8 0 mbufpl 256 236 0 0 15 0 15 15 0 8 0 bufpl 280 3557 0 108 247 0 247 247 0 8 0 anonpl 32 7765 0 0 63 0 63 63 0 246 0 amapchunkpl 152 23512 0 23004 40 6 34 34 0 158 14 amappl16 200 2538 0 2509 6 2 4 5 0 8 0 amappl15 192 8 0 7 1 0 1 1 0 8 0 amappl14 184 426 0 425 1 0 1 1 0 8 0 amappl13 176 119 0 107 1 0 1 1 0 8 0 amappl12 168 1148 0 1117 2 0 2 2 0 8 0 amappl11 160 6 0 5 2 1 1 1 0 8 0 amappl10 152 69 0 55 1 0 1 1 0 8 0 amappl9 144 261 0 261 1 1 0 1 0 8 0 amappl8 136 133 0 130 1 0 1 1 0 8 0 amappl7 128 147 0 134 1 0 1 1 0 8 0 amappl6 120 187 0 186 1 0 1 1 0 8 0 amappl5 112 103 0 92 1 0 1 1 0 8 0 amappl4 104 290 0 270 1 0 1 1 0 8 0 amappl3 96 4529 0 4409 5 1 4 4 0 8 1 amappl2 88 545 0 482 2 0 2 2 0 8 0 amappl1 80 11200 0 10593 14 1 13 14 0 8 0 amappl 88 6477 0 6306 5 0 5 5 0 92 0 uvmvnodes 80 112 0 0 3 0 3 3 0 8 0 dma32768 32768 2 0 2 1 0 1 1 0 8 1 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 11 0 0 1 0 1 1 0 8 0 uaddrrnd 24 895 0 863 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 895 0 863 1 0 1 1 0 8 0 vmmpekpl 168 8615 0 8581 2 0 2 2 0 8 0 vmmpepl 168 62341 0 60366 88 0 88 88 0 357 2 vmsppl 488 894 0 863 5 1 4 5 0 8 0 rwobjpl 80 19044 0 17981 23 0 23 23 0 8 0 pdppl 4096 1797 0 1726 99 28 71 85 0 8 0 pvpl 32 16012 0 0 130 0 130 130 0 265 0 pmappl 256 894 0 863 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 285 0 36 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pf_anchor_global_RB_REMOVE(ffffffff83a61578,ffff80000163b758) at pf_anchor_global_RB_REMOVE+0x81 sys/net/pf_ruleset.c:82 pf_remove_if_empty_ruleset(ffff80000163bbe8) at pf_remove_if_empty_ruleset+0x12d sys/net/pf_ruleset.c:301 pfi_dynaddr_setup(ffff80000156c790,0,1) at pfi_dynaddr_setup+0x671 sys/net/pf_if.c:508 pf_addr_setup(ffffffff83a61a10,ffff80000156c790,0) at pf_addr_setup+0x46 sys/net/pf_ioctl.c:948 pfioctl(24900,cd604404,ffff8000015fe000,2,ffff80003c3efcb8) at pfioctl+0xa370 sys/net/pf_ioctl.c:2382 VOP_IOCTL(fffffd80616a7108,cd604404,ffff8000015fe000,2,fffffd80097fd478,ffff80003c3efcb8) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806c5d6228,cd604404,ffff8000015fe000,ffff80003c3efcb8) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537 sys_ioctl(ffff80003c3efcb8,ffff80003c3e12d0,ffff80003c3e1220) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c3e12d0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3e12d0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x37fdf90b5e0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff8000299adff0) 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 __mp_lock(ffffffff8397e240) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff8397e240) at __mp_lock+0x192 sys/kern/kern_lock.c:173 uvm_fault(fffffd806c5395d8,ab34722f000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:650 upageflttrap(ffff80003c3f9130,ab34722f000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c3f9130) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7ad619d3d980, count: -8