panic: lock (rwlock) solock not locked Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *281961 7073 0 0 0x4000000 0K syz-executor.6 194313 57366 0 0 0x4000000 1 syz-executor.5 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82583901) at panic+0x177 sys/kern/subr_prf.c:198 witness_assert(fffffd806e31c030,4) at witness_assert+0x3ef sys/kern/subr_witness.c:1950 somove(fffffd806e31c7b8,1) at somove+0x25d sbspace sys/sys/socketvar.h:209 [inline] somove(fffffd806e31c7b8,1) at somove+0x25d sys/kern/uipc_socket.c:1487 sosplice(fffffd806e31c7b8,3,0,0) at sosplice+0x50b sys/kern/uipc_socket.c:1346 sosetopt(fffffd806e31c7b8,ffff,1023,fffffd8069edd400) at sosetopt+0x7f4 sys_setsockopt(ffff8000ffff5268,ffff80002b314ba8,ffff80002b314bf0) at sys_setsockopt+0x1f6 sys/kern/uipc_syscalls.c:1233 syscall(ffff80002b314c70) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002b314c70) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x98258dfc380, count: 6 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: lock (rwlock) solock not locked ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82583901) at panic+0x177 sys/kern/subr_prf.c:198 witness_assert(fffffd806e31c030,4) at witness_assert+0x3ef sys/kern/subr_witness.c:1950 somove(fffffd806e31c7b8,1) at somove+0x25d sbspace sys/sys/socketvar.h:209 [inline] somove(fffffd806e31c7b8,1) at somove+0x25d sys/kern/uipc_socket.c:1487 sosplice(fffffd806e31c7b8,3,0,0) at sosplice+0x50b sys/kern/uipc_socket.c:1346 sosetopt(fffffd806e31c7b8,ffff,1023,fffffd8069edd400) at sosetopt+0x7f4 sys_setsockopt(ffff8000ffff5268,ffff80002b314ba8,ffff80002b314bf0) at sys_setsockopt+0x1f6 sys/kern/uipc_syscalls.c:1233 syscall(ffff80002b314c70) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002b314c70) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x98258dfc380, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002b3148a0 rbx 0xffffffff8296cb8f cpu_info_full_primary+0x2b8f rdx 0xffff800000c0bac0 rcx 0 rax 0xffff8000ffff5268 r8 0x101010101010101 r9 0x8080808080808080 r10 0xa349f2b3ca04808e r11 0x6717a18b7c718dd8 r12 0xffffffff8296c990 cpu_info_full_primary+0x2990 r13 0 r14 0 r15 0x1 rip 0xffffffff81f03e68 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002b314890 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.6) pid=281961 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff4fc8,0xffff8000ffff57b8 process=0xffff80002b464020 user=0xffff80002b30f000, vmspace=0xfffffd80689e88b8 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 98685 21078 0 0 2 0x14200 sosplice 50752 503640 73743 0 2 0 syz-executor.4 50752 161815 73743 0 2 0x4000000 syz-executor.4 7073 151863 11169 0 2 0 syz-executor.6 * 7073 281961 11169 0 7 0x4000000 syz-executor.6 60106 107944 33805 0 2 0 syz-executor.0 60106 457544 33805 0 2 0x4000000 syz-executor.0 71017 187632 96294 0 2 0 syz-executor.3 71017 112677 96294 0 3 0x4000080 fsleep syz-executor.3 57366 282549 781 0 2 0 syz-executor.5 57366 194313 781 0 7 0x4000000 syz-executor.5 11169 145448 23310 0 3 0x82 nanoslp syz-executor.6 48737 386534 0 0 3 0x14280 nfsidl nfsio 75066 194570 0 0 3 0x14280 nfsidl nfsio 91817 128195 0 0 3 0x14280 nfsidl nfsio 72092 133522 0 0 3 0x14280 nfsidl nfsio 39599 98066 0 0 3 0x14280 nfsidl nfsio 87635 214555 0 0 3 0x14280 nfsidl nfsio 10965 195490 0 0 3 0x14280 nfsidl nfsio 74170 114893 0 0 3 0x14280 nfsidl nfsio 39401 119694 0 0 3 0x14280 nfsidl nfsio 2849 189951 0 0 3 0x14280 nfsidl nfsio 97516 8667 0 0 3 0x14280 nfsidl nfsio 97902 129044 0 0 3 0x14280 nfsidl nfsio 23452 253562 0 0 3 0x14280 nfsidl nfsio 54145 20468 0 0 3 0x14280 nfsidl nfsio 80806 487976 0 0 3 0x14280 nfsidl nfsio 39867 516325 0 0 3 0x14280 nfsidl nfsio 46368 158654 0 0 3 0x14280 nfsidl nfsio 35184 73702 0 0 3 0x14280 nfsidl nfsio 76347 88730 0 0 3 0x14280 nfsidl nfsio 97749 354067 0 0 3 0x14280 nfsidl nfsio 781 420027 23310 0 3 0x82 nanoslp syz-executor.5 79473 87171 23310 0 2 0x2 syz-executor.7 73743 178532 23310 0 3 0x82 nanoslp syz-executor.4 96294 516084 23310 0 3 0x82 nanoslp syz-executor.3 54928 444146 23310 0 3 0x82 nanoslp syz-executor.2 41762 284946 23310 0 2 0x2 syz-executor.1 33805 105160 23310 0 3 0x82 nanoslp syz-executor.0 23310 106734 38903 0 3 0x82 wait syz-fuzzer 23310 164422 38903 0 3 0x4000082 nanoslp syz-fuzzer 23310 411387 38903 0 3 0x4000082 wait syz-fuzzer 23310 356518 38903 0 3 0x4000082 wait syz-fuzzer 23310 336062 38903 0 3 0x4000082 thrsleep syz-fuzzer 23310 511867 38903 0 3 0x4000082 kqread syz-fuzzer 23310 514358 38903 0 3 0x4000082 thrsleep syz-fuzzer 23310 92462 38903 0 3 0x4000082 wait syz-fuzzer 23310 91010 38903 0 3 0x4000082 thrsleep syz-fuzzer 23310 298280 38903 0 3 0x4000082 wait syz-fuzzer 23310 494847 38903 0 3 0x4000082 wait syz-fuzzer 23310 248477 38903 0 3 0x4000082 thrsleep syz-fuzzer 23310 417054 38903 0 3 0x4000082 wait syz-fuzzer 23310 357644 38903 0 3 0x4000082 wait syz-fuzzer 23310 505689 38903 0 3 0x4000082 thrsleep syz-fuzzer 23310 257296 38903 0 3 0x4000082 thrsleep syz-fuzzer 38903 304509 57546 0 3 0x10008a sigsusp ksh 57546 131390 203 0 3 0x9a kqread sshd 39672 374733 1 0 3 0x100083 ttyin getty 203 17570 1 0 3 0x88 kqread sshd 84002 355142 32573 74 3 0x1100092 bpf pflogd 32573 340918 1 0 3 0x80 netio pflogd 1478 350701 73052 73 3 0x1100090 kqread syslogd 73052 271270 1 0 3 0x100082 netio syslogd 65478 234414 1 0 3 0x100080 kqread resolvd 4648 220568 84315 77 3 0x100092 kqread dhcpleased 46015 51318 84315 77 3 0x100092 kqread dhcpleased 84315 139631 1 0 3 0x80 kqread dhcpleased 24288 111600 0 0 3 0x14200 bored smr 41328 322256 0 0 2 0x14200 zerothread 32275 10118 0 0 3 0x14200 aiodoned aiodoned 18345 88591 0 0 3 0x14200 syncer update 59178 329764 0 0 3 0x14200 cleaner cleaner 49477 254717 0 0 3 0x14200 reaper reaper 1021 246629 0 0 3 0x14200 pgdaemon pagedaemon 66913 414335 0 0 3 0x14200 bored viomb 29067 304295 0 0 3 0x40014200 acpi0 acpi0 84480 113685 0 0 3 0x40014200 idle1 11304 491992 0 0 3 0x14200 bored softnet 35913 1379 0 0 3 0x14200 bored softnet 44943 74576 0 0 3 0x14200 bored softnet 67575 101013 0 0 3 0x14200 bored softnet 25077 171899 0 0 3 0x14200 bored systqmp 27681 387625 0 0 3 0x14200 bored systq 32304 486710 0 0 3 0x40014200 bored softclock 34260 341584 0 0 3 0x40014200 idle0 1 31773 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 7073 (syz-executor.6) thread 0xffff8000ffff5268 (281961) exclusive rwlock netlock r = 0 (0xffffffff82991290) #0 witness_lock+0x44d #1 sys_setsockopt+0x1de sys/kern/uipc_syscalls.c:1233 #2 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #2 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #3 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff829ee950) #0 witness_lock+0x44d #1 syscall+0x41d mi_syscall sys/sys/syscall_mi.h:100 [inline] #1 syscall+0x41d sys/arch/amd64/amd64/trap.c:585 #2 Xsyscall+0x128 Process 79473 (syz-executor.7) thread 0xffff8000ffff02a8 (87171) exclusive rrwlock inode r = 0 (0xfffffd8068610808) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x1fc sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1324 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:560 #11 namei+0x36a sys/kern/vfs_lookup.c:244 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848 #13 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #13 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c460928) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:412 #6 namei+0x36a sys/kern/vfs_lookup.c:244 #7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848 #8 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #8 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10200 6548K 6874K 78643K 11990 0 pcb 13 11K 12K 78643K 112 0 rtable 223 6K 7K 78643K 433 0 ifaddr 89 18K 18K 78643K 142 0 counters 56 35K 36K 78643K 76 0 ioctlops 0 0K 4K 78643K 1523 0 iov 0 0K 12K 78643K 96 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1308 82K 82K 78643K 1494 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 11 0 VM map 2 1K 1K 78643K 2 0 sem 11 0K 0K 78643K 14 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 15 53K 89K 78643K 586 0 sigio 0 0K 0K 78643K 9 0 proc 68 91K 128K 78643K 576 0 subproc 104 6K 6K 78643K 130 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 20 0 in_multi 103 6K 6K 78643K 130 0 ether_multi 1 0K 0K 78643K 6 0 mrt 1 0K 0K 78643K 10 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 719 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 8 62K 64K 78643K 10 0 UVM amap 247 81K 97K 78643K 5063 0 UVM aobj 16 2K 2K 78643K 16 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 14 0 NDP 12 0K 2K 78643K 41 0 temp 101 4719K 4799K 78643K 12750 0 kqueue 13 20K 22K 78643K 63 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 68 0 65 1 0 1 1 0 8 0 rtentry 112 138 0 35 4 0 4 4 0 8 0 unpcb 144 188 0 168 2 0 2 2 0 8 1 syncache 296 4 0 4 1 1 0 1 0 8 0 tcpqe 32 919 0 919 1 1 0 1 0 8 0 tcpcb 768 367 0 358 9 0 9 9 0 8 7 arp 120 22 0 4 1 0 1 1 0 8 0 inpcb 368 666 0 658 8 1 7 7 0 8 6 nd6 48 30 0 6 1 0 1 1 0 8 0 kcovpl 48 10 0 2 1 0 1 1 0 8 0 ppxss 1256 8 0 8 1 0 1 1 0 8 1 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfanchor 1280 250 0 0 21 0 21 21 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 23 0 10 1 0 1 1 0 8 0 pfstkey 120 23 0 10 1 0 1 1 0 8 0 pfstate 336 23 0 10 2 0 2 2 0 8 0 pfrule 1360 31 0 26 2 1 1 2 0 8 0 rttmr 136 3 0 3 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 686 0 222 31 2 29 29 0 8 0 art_table 32 687 0 222 4 0 4 4 0 8 0 art_node 16 137 0 46 1 0 1 1 0 8 0 sysvmsgpl 40 42 0 2 1 0 1 1 0 8 0 semapl 112 12 0 3 1 0 1 1 0 8 0 shmpl 112 13 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1995 0 557 91 0 91 91 0 8 0 ffsino 272 1995 0 557 97 0 97 97 0 8 0 nchpl 144 2852 0 1210 63 0 63 63 0 8 0 uvmvnodes 80 2292 0 0 47 0 47 47 0 8 0 vnodes 216 2292 0 0 128 0 128 128 0 8 0 namei 1024 9944 0 9944 3 2 1 2 0 8 1 percpumem 16 50 0 10 1 0 1 1 0 8 0 kstatmem 264 42 0 18 2 0 2 2 0 8 0 scxspl 216 9247 0 9247 10 9 1 8 0 8 1 plimitpl 152 79 0 64 1 0 1 1 0 8 0 sigapl 424 909 0 841 10 2 8 8 0 8 0 futexpl 64 3990 0 3989 1 0 1 1 0 8 0 knotepl 120 244 0 0 7 0 7 7 0 8 0 kqueuepl 216 89 0 80 1 0 1 1 0 8 0 pipepl 320 172 0 144 3 0 3 3 0 8 0 fdescpl 496 871 0 843 6 2 4 5 0 8 0 filepl 152 4510 0 4265 16 1 15 15 0 8 5 lockfpl 104 265 0 263 1 0 1 1 0 8 0 lockfspl 48 58 0 56 1 0 1 1 0 8 0 sessionpl 144 26 0 9 1 0 1 1 0 8 0 pgrppl 48 26 0 9 1 0 1 1 0 8 0 ucredpl 104 270 0 258 1 0 1 1 0 8 0 zombiepl 144 843 0 841 1 0 1 1 0 8 0 processpl 1064 909 0 841 5 0 5 5 0 8 0 procpl 672 1864 0 1776 11 2 9 9 0 8 1 sosppl 168 2 0 0 1 0 1 1 0 8 0 sockpl 488 925 0 894 13 1 12 12 0 8 8 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 11 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 358 0 0 44 0 44 44 0 8 0 mtagpl 96 35 0 0 1 0 1 1 0 8 0 mbufpl 256 412 0 0 26 0 26 26 0 8 0 bufpl 288 4531 0 140 314 0 314 314 0 8 0 anonpl 24 158963 0 143529 121 10 111 117 0 186 10 amapchunkpl 152 13707 0 13003 44 5 39 40 0 158 7 amappl16 200 2271 0 1813 37 9 28 36 0 8 3 amappl15 192 229 0 221 1 0 1 1 0 8 0 amappl14 184 25 0 20 1 0 1 1 0 8 0 amappl13 176 143 0 141 1 0 1 1 0 8 0 amappl12 168 103 0 95 1 0 1 1 0 8 0 amappl11 160 122 0 102 1 0 1 1 0 8 0 amappl10 152 128 0 123 1 0 1 1 0 8 0 amappl9 144 488 0 483 1 0 1 1 0 8 0 amappl8 136 677 0 619 3 0 3 3 0 8 0 amappl7 128 197 0 175 1 0 1 1 0 8 0 amappl6 120 217 0 205 2 1 1 2 0 8 0 amappl5 112 600 0 580 1 0 1 1 0 8 0 amappl4 104 945 0 914 3 1 2 2 0 8 0 amappl3 96 2026 0 1972 3 1 2 2 0 8 0 amappl2 88 570 0 529 2 1 1 2 0 8 0 amappl1 80 22920 0 22262 21 5 16 20 0 8 0 amappl 88 4568 0 4400 5 0 5 5 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 15 0 0 1 0 1 1 0 8 0 uaddrrnd 24 871 0 843 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 871 0 843 1 0 1 1 0 8 0 vmmpekpl 168 11683 0 11623 3 0 3 3 0 8 0 vmmpepl 168 87807 0 85395 148 14 134 147 0 357 18 vmsppl 368 870 0 843 5 2 3 4 0 8 0 rwobjpl 56 25015 0 21220 56 1 55 55 0 8 0 pdppl 4096 1749 0 1686 118 49 69 81 0 8 6 pvpl 32 416846 0 397079 261 24 237 258 0 265 68 pmappl 248 870 0 843 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 754 0 59 20 0 20 20 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:437 panic(ffffffff82583901) at panic+0x177 sys/kern/subr_prf.c:198 witness_assert(fffffd806e31c030,4) at witness_assert+0x3ef sys/kern/subr_witness.c:1950 somove(fffffd806e31c7b8,1) at somove+0x25d sbspace sys/sys/socketvar.h:209 [inline] somove(fffffd806e31c7b8,1) at somove+0x25d sys/kern/uipc_socket.c:1487 sosplice(fffffd806e31c7b8,3,0,0) at sosplice+0x50b sys/kern/uipc_socket.c:1346 sosetopt(fffffd806e31c7b8,ffff,1023,fffffd8069edd400) at sosetopt+0x7f4 sys_setsockopt(ffff8000ffff5268,ffff80002b314ba8,ffff80002b314bf0) at sys_setsockopt+0x1f6 sys/kern/uipc_syscalls.c:1233 syscall(ffff80002b314c70) at syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002b314c70) at syscall+0x435 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x98258dfc380, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020dd8ff0) 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 __mp_lock(ffffffff829ee748) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829ee748) at __mp_lock+0x122 sys/kern/kern_lock.c:147 vn_ioctl(fffffd8060de4ac8,80104277,ffff800029638600,ffff800027be6000) at vn_ioctl+0x41 sys/kern/vfs_vnops.c:508 sys_ioctl(ffff800027be6000,ffff800029638718,ffff800029638760) at sys_ioctl+0x4a2 syscall(ffff8000296387e0) at syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff8000296387e0) at syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x13d2e9cee90, count: 7 ddb{1}> trace x86_ipi_db(ffff800020dd8ff0) 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 __mp_lock(ffffffff829ee748) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829ee748) at __mp_lock+0x122 sys/kern/kern_lock.c:147 vn_ioctl(fffffd8060de4ac8,80104277,ffff800029638600,ffff800027be6000) at vn_ioctl+0x41 sys/kern/vfs_vnops.c:508 sys_ioctl(ffff800027be6000,ffff800029638718,ffff800029638760) at sys_ioctl+0x4a2 syscall(ffff8000296387e0) at syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff8000296387e0) at syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x13d2e9cee90, count: -8