panic: Caught invalid memory access at ffff8000018c93b0 size 104 op 1 Stopped at db_enter+0x17: popq %rbp TID PID UID PRFLAGS PFLAGS CPU COMMAND *198704 9446 0 0 0x4000000 0K syz-executor 268077 65203 0 0x2 0x1 1 syz-executor db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457 panic(ffffffff8463360e) at panic+0x270 sys/kern/subr_prf.c:198 kasan_memcpy(ffff8000018c93b0,ffff8000017d9398,68) at kasan_memcpy+0x1ec sysctl_sysvipc(ffff80003371f7c8,1,200000000040,ffff80003371f7a0) at sysctl_sysvipc+0x422 sys/kern/kern_sysctl.c:2777 kern_sysctl_dirs(33,ffff80003371f7c8,1,200000000040,ffff80003371f7a0,0,1,1ffff000066e3e70) at kern_sysctl_dirs+0x407 sys/kern/kern_sysctl.c:445 kern_sysctl(ffff80003371f7c4,2,200000000040,ffff80003371f7a0,0,0,ffff80003371fa10) at kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529 sys_sysctl(ffff80003370c020,ffff80003371fa10,ffff80003371f980) at sys_sysctl+0x54f sys/kern/kern_sysctl.c:309 syscall(ffff80003371fa10) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003371fa10) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc9dd6358d00, 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: Caught invalid memory access at ffff8000018c93b0 size 104 op 1 ddb{0}> trace db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457 panic(ffffffff8463360e) at panic+0x270 sys/kern/subr_prf.c:198 kasan_memcpy(ffff8000018c93b0,ffff8000017d9398,68) at kasan_memcpy+0x1ec sysctl_sysvipc(ffff80003371f7c8,1,200000000040,ffff80003371f7a0) at sysctl_sysvipc+0x422 sys/kern/kern_sysctl.c:2777 kern_sysctl_dirs(33,ffff80003371f7c8,1,200000000040,ffff80003371f7a0,0,1,1ffff000066e3e70) at kern_sysctl_dirs+0x407 sys/kern/kern_sysctl.c:445 kern_sysctl(ffff80003371f7c4,2,200000000040,ffff80003371f7a0,0,0,ffff80003371fa10) at kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529 sys_sysctl(ffff80003370c020,ffff80003371fa10,ffff80003371f980) at sys_sysctl+0x54f sys/kern/kern_sysctl.c:309 syscall(ffff80003371fa10) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003371fa10) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc9dd6358d00, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003371efd0 rbx 0xffff80003371f040 rdx 0 rcx 0xffffffff84f6aff0 cpu_info_full_primary+0x1ff0 rax 0xffff800000168780 r8 0x101010101010101 r9 0x8080808080808080 r10 0xffff80003371edb8 r11 0xffffffff82eaa450 x86_bus_space_io_read_1 r12 0xffffffff8463360e .str.31+0x9cb8e r13 0xffffffff84f6bc08 cpu_info_full_primary+0x2c08 r14 0xffffffff84f6be07 cpu_info_full_primary+0x2e07 r15 0x1 rip 0xffffffff8309ec97 db_enter+0x17 cs 0x8 rflags 0x246 rsp 0xffff80003371efd0 ss 0x10 db_enter+0x17: popq %rbp ddb{0}> show proc PROC (syz-executor) tid=198704 pid=9446 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003370c2b8,0xffff800029923778 process=0xffff800045ff0028 user=0xffff800033714000, vmspace=0xffff800001c91208 estcpu=36, cpticks=20, pctcpu=0.0, user=0, sys=20, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 66396 231619 83987 0 2 0 syz-executor 16579 227577 18486 0 2 0 syz-executor 16579 65472 18486 0 2 0x4000000 syz-executor 34043 267779 21082 0 2 0 syz-executor 34043 338320 21082 0 3 0x4000080 fsleep syz-executor 83730 167309 0 0 3 0x14200 acct acct 11489 337233 9216 0 2 0 syz-executor 11489 36560 9216 0 3 0x4000080 nanoslp syz-executor 11489 451265 9216 0 3 0x4000080 fsleep syz-executor 84727 23915 37728 0 2 0xc80 syz-executor 84727 129439 37728 0 2 0x4000000 syz-executor 84727 4315 37728 0 3 0x4000080 fsleep syz-executor 84727 147052 37728 0 3 0x4000080 fsleep syz-executor 9446 278262 65203 0 2 0 syz-executor * 9446 198704 65203 0 7 0x4000000 syz-executor 94646 287918 66171 0 2 0 syz-executor 94646 181502 66171 0 3 0x4000080 piperd syz-executor 94646 1771 66171 0 3 0x4000080 fsleep syz-executor 15497 478568 1 0 3 0x100083 ttyin getty 64602 58634 0 0 3 0x14280 nfsidl nfsio 12068 344672 0 0 3 0x14280 nfsidl nfsio 28288 106399 0 0 3 0x14280 nfsidl nfsio 73350 248795 0 0 3 0x14280 nfsidl nfsio 89998 489191 0 0 3 0x14280 nfsidl nfsio 17234 508677 0 0 3 0x14280 nfsidl nfsio 12912 420328 0 0 3 0x14280 nfsidl nfsio 78221 325436 0 0 3 0x14280 nfsidl nfsio 72310 426589 0 0 3 0x14280 nfsidl nfsio 72106 71611 0 0 3 0x14280 nfsidl nfsio 19412 11233 0 0 3 0x14280 nfsidl nfsio 21270 25562 0 0 3 0x14280 nfsidl nfsio 84661 221704 0 0 3 0x14280 nfsidl nfsio 71426 96455 0 0 3 0x14280 nfsidl nfsio 52332 467989 0 0 3 0x14280 nfsidl nfsio 12660 485321 0 0 3 0x14280 nfsidl nfsio 77840 80777 0 0 3 0x14280 nfsidl nfsio 43805 221706 0 0 3 0x14280 nfsidl nfsio 26945 278301 0 0 3 0x14280 nfsidl nfsio 85839 478354 0 0 3 0x14280 nfsidl nfsio 83987 17407 77546 0 2 0xc82 syz-executor 21082 494652 77546 0 2 0xc82 syz-executor 37728 509471 77546 0 2 0xc82 syz-executor 65203 268077 77546 0 7 0x3 syz-executor 96912 366808 77546 0 2 0x10000002 syz-executor 66171 298877 77546 0 2 0xc82 syz-executor 18486 448853 77546 0 2 0xc82 syz-executor 9216 34814 77546 0 2 0xc82 syz-executor 77546 384262 1 0 3 0x82 kqread syz-executor 35685 78875 1 74 3 0x1100092 bpf pflogd 53214 373901 1 73 2 0x1100090 syslogd 66753 483187 0 0 3 0x14200 bored smr 92829 155979 0 0 2 0x14200 zerothread 4297 117440 0 0 3 0x14200 aiodoned aiodoned 36860 165926 0 0 3 0x14200 syncer update 81073 334892 0 0 3 0x14200 cleaner cleaner 70726 512308 0 0 3 0x14200 reaper reaper 25591 89952 0 0 3 0x14200 pgdaemon pagedaemon 69223 370533 0 0 3 0x14200 bored viomb 23403 47911 0 0 3 0x40014200 acpi0 acpi0 5171 250688 0 0 3 0x40014200 idle1 59011 47456 0 0 3 0x14200 bored softnet1 84996 318841 0 0 2 0x14200 softnet0 97941 285877 0 0 3 0x14200 bored systqmp 40774 521792 0 0 3 0x14200 bored systq 32268 57335 0 0 2 0x14200 softclockmp 28406 427619 0 0 3 0x40014200 tmoslp softclock 45805 441069 0 0 3 0x40014200 idle0 1 443614 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 84727 (syz-executor) thread 0xffff800029923238 (129439) exclusive rrwlock inode r = 0 (0xffff800001ceb7b8) #0 witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x632 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x53e sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xf0 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0x17e sys/kern/vfs_vops.c:527 #4 vn_lock+0xca sys/kern/vfs_vnops.c:576 #5 vn_write+0x200 sys/kern/vfs_vnops.c:410 #6 dofilewritev+0x3ef sys/kern/sys_generic.c:384 #7 sys_pwritev+0x1b3 sys/kern/vfs_syscalls.c:3346 #8 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 Process 9446 (syz-executor) thread 0xffff80003370c020 (198704) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff854280c0) #0 witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x632 sys/kern/subr_witness.c:1160 #1 sysctl_vslock+0x72 sys/kern/kern_sysctl.c:197 #2 kern_sysctl_dirs+0x2d2 sys/kern/kern_sysctl.c:443 #3 kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529 #4 sys_sysctl+0x54f sys/kern/kern_sysctl.c:309 #5 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 #6 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff85260178) #0 witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x632 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x53e sys/kern/kern_rwlock.c:320 #2 sysctl_vslock+0x37 sys/kern/kern_sysctl.c:192 #3 kern_sysctl_dirs+0x2d2 sys/kern/kern_sysctl.c:443 #4 kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529 #5 sys_sysctl+0x54f sys/kern/kern_sysctl.c:309 #6 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11050 12558K 12771K 166960K 12234 0 pcb 19 24K 24K 166960K 34 0 rtable 237 12K 13K 166960K 351 0 pf 34 22K 38K 166960K 54 0 ifaddr 43 12K 12K 166960K 47 0 ifgroup 55 2K 2K 166960K 64 0 sysctl 3 1K 13K 166960K 8 0 counters 70 42K 43K 166960K 74 0 ioctlops 0 0K 4K 166960K 1529 0 iov 0 0K 16K 166960K 4 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1299 84K 84K 166960K 1422 0 UFS quota 1 36K 36K 166960K 1 0 UFS mount 5 44K 44K 166960K 5 0 shm 2 2K 10K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 15 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 247 0 sigio 0 0K 0K 166960K 2 0 proc 22 46K 177K 166960K 577 0 subproc 72 9K 9K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 20K 20K 166960K 1 0 ip_moptions 0 0K 0K 166960K 1 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 4 0 ISOFS mount 1 36K 36K 166960K 1 0 MSDOSFS mount 1 20K 20K 166960K 1 0 ttys 49 344K 344K 166960K 49 0 exec 0 0K 2K 166960K 390 0 fusefs mount 1 36K 36K 166960K 1 0 tdb 3 1K 1K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 148 141K 257K 166960K 4184 0 UVM aobj 131 8K 8K 166960K 132 0 pinsyscall 1047 1735K 1735K 166960K 1407 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 12 0K 2K 166960K 30 0 temp 41 9178K 9482K 166960K 6291 0 kqueue 4 13K 48K 166960K 42 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 28 0 0 1 0 1 1 0 8 0 rtpcb 120 33 0 33 1 0 1 1 0 8 1 rtentry 176 111 0 1 5 0 5 5 0 8 0 unpcb 144 224 0 213 2 0 2 2 0 8 1 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpcb 736 20 0 18 1 0 1 1 0 8 0 arp 136 18 0 0 1 0 1 1 0 8 0 inpcb 328 120 0 111 2 0 2 2 0 8 1 nd6 152 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 68 0 67 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 pfstitem 24 22 0 0 1 0 1 1 0 8 0 pfstkey 128 22 0 0 1 0 1 1 0 8 0 pfstate 448 22 0 0 3 0 3 3 0 8 0 pfrule 1360 22 0 17 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 453 0 0 29 0 29 29 0 8 0 art_table 40 454 0 0 5 0 5 5 0 8 0 art_node 32 111 0 11 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 72 12 0 2 1 0 1 1 0 8 0 shmpl 112 129 0 1 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1761 0 286 93 0 93 93 0 8 0 ffsino 296 1761 0 286 114 0 114 114 0 8 0 nchpl 144 2126 0 418 64 0 64 64 0 8 0 vnodes 216 1890 0 0 105 0 105 105 0 8 0 namei 1024 6698 0 6698 1 0 1 1 0 8 1 percpumem 16 53 0 2 1 0 1 1 0 8 0 kstatmem 264 31 0 4 2 0 2 2 0 8 0 scxspl 216 7652 0 7652 4 3 1 3 1 8 1 plimitpl 152 36 0 24 1 0 1 1 0 8 0 sigapl 424 586 0 527 8 0 8 8 0 8 0 knotepl 120 111 0 0 4 0 4 4 0 8 0 kqueuepl 224 46 0 43 1 0 1 1 0 8 0 pipepl 344 144 0 116 3 0 3 3 0 8 0 fdescpl 528 549 0 528 3 0 3 3 0 8 0 filepl 160 2282 0 2087 11 0 11 11 0 8 2 lockfpl 104 42 0 39 1 0 1 1 0 8 0 lockfspl 48 21 0 18 1 0 1 1 0 8 0 sessionpl 144 32 0 27 1 0 1 1 0 8 0 pgrppl 48 43 0 30 1 0 1 1 0 8 0 ucredpl 104 254 0 247 1 0 1 1 0 8 0 zombiepl 144 528 0 527 1 0 1 1 0 8 0 processpl 1232 586 0 527 6 0 6 6 0 8 0 procpl 664 794 0 725 7 0 7 7 0 8 0 sosppl 176 2 0 2 1 0 1 1 0 8 1 sockpl 752 381 0 361 5 0 5 5 0 8 3 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k128 9344 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 135 0 0 17 0 17 17 0 8 0 mcl2k 2048 21 0 0 3 0 3 3 0 8 0 mextrefs 64 18 0 0 1 0 1 1 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 165 0 0 11 0 11 11 0 8 0 bufpl 272 2539 0 105 163 0 163 163 0 8 0 anonpl 32 5459 0 0 44 0 44 44 0 222 0 amapchunkpl 152 11669 0 11310 25 0 25 25 0 158 8 amappl16 200 1667 0 1649 6 3 3 5 0 8 1 amappl15 192 9 0 9 2 2 0 1 0 8 0 amappl14 184 457 0 457 1 0 1 1 0 8 1 amappl13 176 124 0 121 1 0 1 1 0 8 0 amappl12 168 823 0 804 2 0 2 2 0 8 0 amappl11 160 6 0 6 3 2 1 1 0 8 1 amappl10 152 91 0 87 1 0 1 1 0 8 0 amappl9 144 279 0 279 1 0 1 1 0 8 1 amappl8 136 104 0 103 1 0 1 1 0 8 0 amappl7 128 163 0 158 1 0 1 1 0 8 0 amappl6 120 155 0 155 1 0 1 1 0 8 1 amappl5 112 97 0 94 1 0 1 1 0 8 0 amappl4 104 328 0 319 1 0 1 1 0 8 0 amappl3 96 2182 0 2102 3 0 3 3 0 8 0 amappl2 88 553 0 536 2 0 2 2 0 8 0 amappl1 80 10843 0 10663 16 1 15 15 0 8 5 amappl 88 3436 0 3314 4 0 4 4 0 92 0 uvmvnodes 80 103 0 0 3 0 3 3 0 8 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 72 131 0 1 3 0 3 3 0 8 0 uaddrrnd 24 549 0 528 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 549 0 528 1 0 1 1 0 8 0 vmmpekpl 168 6650 0 6611 2 0 2 2 0 8 0 vmmpepl 168 44123 0 43131 87 0 87 87 0 357 34 vmsppl 488 548 0 528 5 0 5 5 0 8 1 rwobjpl 80 15622 0 14988 25 0 25 25 0 8 1 pdppl 4096 1107 0 1056 97 42 55 87 0 8 4 pvpl 32 13190 0 0 107 0 107 107 0 265 0 pmappl 256 548 0 528 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 435 0 47 12 0 12 12 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457 panic(ffffffff8463360e) at panic+0x270 sys/kern/subr_prf.c:198 kasan_memcpy(ffff8000018c93b0,ffff8000017d9398,68) at kasan_memcpy+0x1ec sysctl_sysvipc(ffff80003371f7c8,1,200000000040,ffff80003371f7a0) at sysctl_sysvipc+0x422 sys/kern/kern_sysctl.c:2777 kern_sysctl_dirs(33,ffff80003371f7c8,1,200000000040,ffff80003371f7a0,0,1,1ffff000066e3e70) at kern_sysctl_dirs+0x407 sys/kern/kern_sysctl.c:445 kern_sysctl(ffff80003371f7c4,2,200000000040,ffff80003371f7a0,0,0,ffff80003371fa10) at kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529 sys_sysctl(ffff80003370c020,ffff80003371fa10,ffff80003371f980) at sys_sysctl+0x54f sys/kern/kern_sysctl.c:309 syscall(ffff80003371fa10) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003371fa10) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc9dd6358d00, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x19: leave x86_ipi_db(ffff800028ff3ff0) at x86_ipi_db+0x19 sys/arch/amd64/amd64/db_interface.c:412 x86_ipi_handler() at x86_ipi_handler+0x112 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff854278c0) at __mp_lock+0x272 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff854278c0) at __mp_lock+0x272 sys/kern/kern_lock.c:173 ktrsysret(ffff800045ffdca0,5b,0,ffff800029a6c9c0) at ktrsysret+0x14d ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff800045ffdca0,5b,0,ffff800029a6c9c0) at ktrsysret+0x14d sys/kern/kern_ktrace.c:209 syscall(ffff800029a6ca50) at syscall+0x473 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff800029a6ca50) at syscall+0x473 sys/arch/amd64/amd64/trap.c:804 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e45c3559b50, count: 8 ddb{1}> trace x86_ipi_db(ffff800028ff3ff0) at x86_ipi_db+0x19 sys/arch/amd64/amd64/db_interface.c:412 x86_ipi_handler() at x86_ipi_handler+0x112 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff854278c0) at __mp_lock+0x272 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff854278c0) at __mp_lock+0x272 sys/kern/kern_lock.c:173 ktrsysret(ffff800045ffdca0,5b,0,ffff800029a6c9c0) at ktrsysret+0x14d ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff800045ffdca0,5b,0,ffff800029a6c9c0) at ktrsysret+0x14d sys/kern/kern_ktrace.c:209 syscall(ffff800029a6ca50) at syscall+0x473 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff800029a6ca50) at syscall+0x473 sys/arch/amd64/amd64/trap.c:804 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e45c3559b50, count: -7 ddb{1}>