uvm_fault(0xfffffd80626e85e0, 0xf, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND *186275 71973 0 0 0x4000000 0K syz-executor 381463 67594 0 0x2 0x1 1 syz-executor ktrops(ffff80003c408020,ffffffffffffffff,0,a0c7df9f,fffffd805f5d2380,fffffd80097fd680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c408020,ffffffffffffffff,0,a0c7df9f,fffffd805f5d2380,fffffd80097fd680) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805f5d2380,4,20c7df9f,0,ffff80003c408020) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805f5d2380,4,20c7df9f,0,ffff80003c408020) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c408020,ffff80003c445020,ffff80003c444f70) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c445020) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c445020) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe6f981bd090, count: 10 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: uvm_fault(0xfffffd80626e85e0, 0xf, 0, 1) -> e ddb{0}> trace ktrops(ffff80003c408020,ffffffffffffffff,0,a0c7df9f,fffffd805f5d2380,fffffd80097fd680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c408020,ffffffffffffffff,0,a0c7df9f,fffffd805f5d2380,fffffd80097fd680) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805f5d2380,4,20c7df9f,0,ffff80003c408020) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805f5d2380,4,20c7df9f,0,ffff80003c408020) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c408020,ffff80003c445020,ffff80003c444f70) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c445020) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c445020) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe6f981bd090, count: -5 ddb{0}> show registers rdi 0xffff8000397fc000 rsi 0x3ba8 __ALIGN_SIZE+0x2ba8 rbp 0xffff80003c444d30 rbx 0xfffffd80097fd680 rdx 0xffff8000397fc000 rcx 0x3ba7 __ALIGN_SIZE+0x2ba7 rax 0xffffffff824a3473 ktrops+0x43 r8 0xfffffd805f5d2380 r9 0xfffffd80097fd680 r10 0x3e7f7be1537bab15 r11 0x639fcd8c6cc42d96 r12 0xffff80003c408020 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff824a3488 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c444cb0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb{0}> show proc PROC (syz-executor) tid=186275 pid=71973 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffeed10,0xffff80003c4082c8 process=0xffff8000ffff5348 user=0xffff80003c440000, vmspace=0xfffffd80626e85e0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 94887 166230 64901 0 2 0 syz-executor 71973 60672 75845 0 2 0 syz-executor *71973 186275 75845 0 7 0x4000000 syz-executor 4065 296250 79853 0 2 0xc80 syz-executor 4065 149382 79853 0 2 0x4000000 syz-executor 4065 188962 79853 0 3 0x4000080 fsleep syz-executor 17474 244872 41277 0 2 0 syz-executor 17474 343505 41277 0 3 0x4000080 fsleep syz-executor 2609 440381 69449 0 2 0 syz-executor 2609 389963 69449 0 3 0x4000000 smrbar syz-executor 69449 456744 67594 0 3 0x82 nanoslp syz-executor 61984 174088 1 0 3 0x100083 ttyin getty 54948 473964 67594 0 3 0x82 wait syz-executor 56847 15625 0 0 3 0x14280 nfsidl nfsio 54 233685 0 0 3 0x14280 nfsidl nfsio 32087 209015 0 0 3 0x14280 nfsidl nfsio 26807 464289 0 0 3 0x14280 nfsidl nfsio 59889 488809 0 0 3 0x14280 nfsidl nfsio 77795 8853 0 0 3 0x14280 nfsidl nfsio 70665 349809 0 0 3 0x14280 nfsidl nfsio 50646 272266 0 0 3 0x14280 nfsidl nfsio 50009 187402 0 0 3 0x14280 nfsidl nfsio 59212 457600 0 0 3 0x14280 nfsidl nfsio 48944 502873 0 0 3 0x14280 nfsidl nfsio 74668 59006 0 0 3 0x14280 nfsidl nfsio 55156 207754 0 0 3 0x14280 nfsidl nfsio 55255 498107 0 0 3 0x14280 nfsidl nfsio 22767 453849 0 0 3 0x14280 nfsidl nfsio 52118 229711 0 0 3 0x14280 nfsidl nfsio 81875 464152 0 0 3 0x14280 nfsidl nfsio 6904 3657 0 0 3 0x14280 nfsidl nfsio 75187 377517 0 0 3 0x14280 nfsidl nfsio 44765 102929 0 0 3 0x14280 nfsidl nfsio 64901 517778 67594 0 3 0x82 nanoslp syz-executor 75845 385541 67594 0 2 0xc82 syz-executor 29870 294003 67594 0 3 0x82 wait syz-executor 41277 392415 67594 0 3 0x82 nanoslp syz-executor 79853 499866 67594 0 2 0xc82 syz-executor 4368 160457 67594 0 2 0x2 syz-executor 67594 381463 35479 0 7 0x3 syz-executor 35479 442256 73055 0 3 0x10008a sigsusp ksh 73055 179694 28389 0 3 0x98 kqread sshd-session 28389 246855 49497 0 3 0x92 kqread sshd-session 49497 259105 1 0 3 0x88 kqread sshd 36861 483480 8117 74 3 0x1100092 bpf pflogd 8117 294665 1 0 3 0x80 sbwait pflogd 62877 322383 5578 73 2 0x1100010 syslogd 5578 397529 1 0 3 0x100082 sbwait syslogd 86211 458422 1 0 3 0x100080 kqread resolvd 50029 392215 92087 77 3 0x100092 kqread dhcpleased 47164 60377 92087 77 3 0x100092 kqread dhcpleased 92087 163459 1 0 3 0x80 kqread dhcpleased 33995 31708 0 0 3 0x14200 bored smr 15063 332546 0 0 2 0x14200 zerothread 93787 288780 0 0 3 0x14200 aiodoned aiodoned 54732 473744 0 0 3 0x14200 syncer update 20950 143206 0 0 3 0x14200 cleaner cleaner 16712 362867 0 0 3 0x14200 reaper reaper 17746 165363 0 0 3 0x14200 pgdaemon pagedaemon 27616 24683 0 0 3 0x14200 bored viomb 54945 258722 0 0 3 0x40014200 acpi0 acpi0 21715 149260 0 0 3 0x40014200 idle1 24374 317256 0 0 3 0x14200 bored softnet1 76446 8686 0 0 3 0x14200 bored softnet0 10057 510022 0 0 3 0x14200 smrbar systqmp 91372 136885 0 0 3 0x14200 bored systq 50298 398671 0 0 3 0x14200 tmoslp softclockmp 82520 328420 0 0 3 0x40014200 tmoslp softclock 20282 421203 0 0 3 0x40014200 idle0 1 189008 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 71973 (syz-executor) thread 0xffff80003c408020 (186275) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83912930) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2d8 sys/kern/kern_synch.c:369 #3 biowait+0xc6 sys/kern/vfs_bio.c:1242 #4 bwrite+0x2e7 sys/kern/vfs_bio.c:754 #5 ffs_update+0x2fe sys/ufs/ffs/ffs_inode.c:111 #6 ffs_truncate+0xc9b sys/ufs/ffs/ffs_inode.c:-1 #7 ufs_inactive+0x202 sys/ufs/ufs/ufs_inode.c:84 #8 VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 #9 vrele+0x129 sys/kern/vfs_subr.c:837 #10 ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122 #11 ktrops+0x26c sys/kern/kern_ktrace.c:573 #12 doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] #12 doktrace+0x6bd sys/kern/kern_ktrace.c:517 #13 sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 #14 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #14 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #15 Xsyscall+0x128 Process 10057 (systqmp) thread 0xffff8000ffffe7c8 (510022) shared rwlock systqmp r = 0 (0xffffffff837f17b8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10232 11270K 11427K 166960K 12342 0 pcb 18 15K 16K 166960K 185 0 rtable 227 9K 10K 166960K 595 0 pf 37 18K 21K 166960K 115 0 ifaddr 40 7K 7K 166960K 92 0 ifgroup 59 2K 2K 166960K 132 0 sysctl 4 1K 9K 166960K 10 0 counters 72 37K 38K 166960K 144 0 ioctlops 0 0K 8K 166960K 1675 0 iov 0 0K 12K 166960K 64 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1464 92K 92K 166960K 2213 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 20 136K 136K 166960K 24 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 110K 166960K 880 0 sigio 0 0K 0K 166960K 13 0 proc 72 115K 196K 166960K 720 0 subproc 72 4K 4K 166960K 99 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 97 0 in_multi 86 6K 7K 166960K 166 0 ether_multi 1 0K 0K 166960K 7 0 mrt 0 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 588 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 237 171K 181K 166960K 9699 0 UVM aobj 19 6K 6K 166960K 20 0 pinsyscall 42 84K 101K 166960K 2082 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 63 0 NDP 13 0K 2K 166960K 63 0 temp 74 8676K 8752K 166960K 38766 0 kqueue 13 20K 29K 166960K 170 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 120 124 0 121 2 0 2 2 0 8 1 rtentry 176 176 0 86 6 0 6 6 0 8 0 unpcb 144 624 0 607 6 0 6 6 0 8 5 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 736 176 0 171 2 0 2 2 0 8 1 arp 136 32 0 14 1 0 1 1 0 8 0 inpcb 328 1095 0 1085 13 6 7 13 0 8 6 nd6 152 38 0 17 2 1 1 2 0 8 0 pkpcb 40 3 0 3 2 2 0 1 0 8 0 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1192 29 0 29 1 0 1 1 0 8 1 pppxif 1504 3 0 3 1 0 1 1 0 8 1 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 7 0 1 1 0 1 1 0 482 0 pffrnode 88 7 0 1 1 0 1 1 0 8 0 pffrent 40 12 0 6 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 0 2 1 1 0 1 0 8 0 pfstitem 24 59 0 12 1 0 1 1 0 8 0 pfstkey 128 63 0 16 2 0 2 2 0 8 0 pfstate 448 60 0 14 6 0 6 6 0 8 0 pfrule 1344 24 0 18 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 5 0 0 5 0 5 5 0 8 0 art_heap4 256 721 0 285 32 2 30 30 0 8 2 art_table 40 726 0 285 5 0 5 5 0 8 0 art_node 32 173 0 91 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 1 0 1 0 8 0 semapl 112 18 0 0 1 0 1 1 0 8 0 shmpl 112 15 0 1 1 0 1 1 0 8 0 dirhash 1024 30 0 13 3 0 3 3 0 8 0 dino2pl 256 3032 0 1519 96 0 96 96 0 8 0 ffsino 296 3032 0 1519 117 0 117 117 0 8 0 nchpl 144 4155 0 2445 64 0 64 64 0 8 0 rtmask 32 4 0 4 1 0 1 1 0 8 1 vnodes 216 3589 0 0 200 0 200 200 0 8 0 namei 1024 14695 0 14695 2 1 1 2 0 8 1 percpumem 16 87 0 36 1 0 1 1 0 8 0 vcpupl 3968 2 0 0 1 0 1 1 0 8 0 vmpool 840 2 0 0 1 0 1 1 0 8 0 kstatmem 264 84 0 54 4 1 3 3 0 8 0 scsiplug 72 4 0 4 1 0 1 1 0 8 1 scxspl 216 17590 0 17590 9 8 1 8 1 8 1 plimitpl 152 266 0 249 1 0 1 1 0 8 0 sigapl 424 1198 0 1131 9 1 8 8 0 8 0 knotepl 120 524 0 0 16 0 16 16 0 8 0 kqueuepl 224 270 0 261 2 0 2 2 0 8 1 pipepl 344 184 0 157 3 0 3 3 0 8 0 fdescpl 528 1156 0 1125 3 0 3 3 0 8 0 filepl 160 7113 0 6886 19 2 17 17 0 8 6 lockfpl 104 315 0 310 1 0 1 1 0 8 0 lockfspl 48 107 0 102 1 0 1 1 0 8 0 sessionpl 144 26 0 17 1 0 1 1 0 8 0 pgrppl 48 119 0 102 1 0 1 1 0 8 0 ucredpl 104 1068 0 1055 1 0 1 1 0 8 0 zombiepl 144 1133 0 1131 1 0 1 1 0 8 0 processpl 1232 1198 0 1131 6 0 6 6 0 8 0 procpl 664 2422 0 2350 8 0 8 8 0 8 1 sosppl 176 6 0 6 2 1 1 1 0 8 1 sockpl 752 1927 0 1897 39 28 11 20 0 8 8 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 35 0 0 5 0 5 5 0 8 0 mcl4k 4096 118 0 0 15 0 15 15 0 8 0 mcl2k 2048 63 0 0 7 0 7 7 0 8 0 mtagpl 96 57 0 0 2 0 2 2 0 8 0 mbufpl 256 290 0 0 18 0 18 18 0 8 0 bufpl 280 6259 0 128 438 0 438 438 0 8 0 anonpl 32 10236 0 0 83 0 83 83 0 246 0 amapchunkpl 152 30933 0 30465 30 3 27 27 0 158 7 amappl16 200 3085 0 3051 24 19 5 23 0 8 0 amappl15 192 12 0 12 1 1 0 1 0 8 0 amappl14 184 5 0 5 1 1 0 1 0 8 0 amappl13 176 466 0 465 1 0 1 1 0 8 0 amappl12 168 1537 0 1496 3 0 3 3 0 8 0 amappl11 160 28 0 28 1 1 0 1 0 8 0 amappl10 152 77 0 63 1 0 1 1 0 8 0 amappl9 144 243 0 243 1 1 0 1 0 8 0 amappl8 136 27 0 25 1 0 1 1 0 8 0 amappl7 128 96 0 94 1 0 1 1 0 8 0 amappl6 120 335 0 322 1 0 1 1 0 8 0 amappl5 112 79 0 69 1 0 1 1 0 8 0 amappl4 104 429 0 400 1 0 1 1 0 8 0 amappl3 96 6170 0 6066 4 0 4 4 0 8 0 amappl2 88 563 0 500 2 0 2 2 0 8 0 amappl1 80 12240 0 11649 14 1 13 14 0 8 0 amappl 88 8784 0 8626 5 0 5 5 0 92 0 uvmvnodes 80 121 0 0 3 0 3 3 0 8 0 dma8192 8192 2 0 2 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 7 0 7 2 1 1 1 0 8 1 dma128 128 255 0 255 3 2 1 1 0 8 1 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 19 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1156 0 1125 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1156 0 1125 1 0 1 1 0 8 0 vmmpekpl 168 10529 0 10476 3 0 3 3 0 8 0 vmmpepl 168 78285 0 76371 105 10 95 105 0 357 9 vmsppl 488 1155 0 1125 6 1 5 5 0 8 0 rwobjpl 80 22513 0 21449 30 2 28 30 0 8 0 pdppl 4096 2324 0 2252 109 33 76 86 0 8 4 pvpl 32 19393 0 0 157 0 157 157 0 265 0 pmappl 256 1157 0 1125 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 312 0 40 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ktrops(ffff80003c408020,ffffffffffffffff,0,a0c7df9f,fffffd805f5d2380,fffffd80097fd680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c408020,ffffffffffffffff,0,a0c7df9f,fffffd805f5d2380,fffffd80097fd680) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805f5d2380,4,20c7df9f,0,ffff80003c408020) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805f5d2380,4,20c7df9f,0,ffff80003c408020) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c408020,ffff80003c445020,ffff80003c444f70) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c445020) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c445020) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe6f981bd090, count: -5 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299edff0) 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(ffffffff83912728) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83912728) at __mp_lock+0x192 sys/kern/kern_lock.c:165 ktrsysret(ffff8000ffffd760,3,0,ffff80002a29e3b0) at ktrsysret+0xde ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff8000ffffd760,3,0,ffff80002a29e3b0) at ktrsysret+0xde sys/kern/kern_ktrace.c:209 syscall(ffff80002a29e460) at syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a29e460) at syscall+0xa50 sys/arch/amd64/amd64/trap.c:796 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b5884756df0, count: 8 ddb{1}> trace x86_ipi_db(ffff8000299edff0) 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(ffffffff83912728) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83912728) at __mp_lock+0x192 sys/kern/kern_lock.c:165 ktrsysret(ffff8000ffffd760,3,0,ffff80002a29e3b0) at ktrsysret+0xde ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff8000ffffd760,3,0,ffff80002a29e3b0) at ktrsysret+0xde sys/kern/kern_ktrace.c:209 syscall(ffff80002a29e460) at syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a29e460) at syscall+0xa50 sys/arch/amd64/amd64/trap.c:796 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b5884756df0, count: -7