uvm_fault(0xffffffff8355a950, 0xffff80002794200c, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ufs_direnter+0x23c: movl 0(%r15),%r14d TID PID UID PRFLAGS PFLAGS CPU COMMAND 378325 14216 0 0x2 0 1 syz-executor *337339 82696 0 0x2 0 0K syz-executor ufs_direnter(fffffd8078924128,fffffd807345eb58,ffff80002a0c2150,ffff80002a0c2470,fffffd807ba86140) at ufs_direnter+0x23c sys/ufs/ufs/ufs_lookup.c:764 ufs_mkdir(ffff80002a0c22e0) at ufs_mkdir+0x60f sys/ufs/ufs/ufs_vnops.c:1179 VOP_MKDIR(fffffd8078924128,ffff80002a0c2440,ffff80002a0c2470,ffff80002a0c2370) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff8000371eb1e0,ffffff9c,70830ff31d30,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 syscall(ffff80002a0c25f0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0c25f0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70830ff31dc0, count: 9 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(0xffffffff8355a950, 0xffff80002794200c, 0, 1) -> d ddb{0}> trace ufs_direnter(fffffd8078924128,fffffd807345eb58,ffff80002a0c2150,ffff80002a0c2470,fffffd807ba86140) at ufs_direnter+0x23c sys/ufs/ufs/ufs_lookup.c:764 ufs_mkdir(ffff80002a0c22e0) at ufs_mkdir+0x60f sys/ufs/ufs/ufs_vnops.c:1179 VOP_MKDIR(fffffd8078924128,ffff80002a0c2440,ffff80002a0c2470,ffff80002a0c2370) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff8000371eb1e0,ffffff9c,70830ff31d30,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 syscall(ffff80002a0c25f0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0c25f0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70830ff31dc0, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002a0c2140 rbx 0xfffffd806def3670 rdx 0 rcx 0xffff8000371eb1e0 rax 0xffffffff83464ff0 cpu_info_full_primary+0x1ff0 r8 0xffffffffffffffff r9 0 r10 0x748f63b30b9e3d20 r11 0x6705375c44b2ef54 r12 0xfffffd806c375700 r13 0xfffffd807345eb58 r14 0x200 r15 0xffff80002794200c rip 0xffffffff81d57f9c ufs_direnter+0x23c cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a0c2090 ss 0 ufs_direnter+0x23c: movl 0(%r15),%r14d ddb{0}> show proc PROC (syz-executor) tid=337339 pid=82696 tcnt=1 stat=onproc flags process=2 proc=0 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000371eaa48,0xffff8000ffff27c8 process=0xffff8000372816b0 user=0xffff80002a0bd000, vmspace=0xfffffd806bd46530 estcpu=36, cpticks=1, pctcpu=0.2, user=1, sys=14, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 49660 75304 10496 0 2 0x10 syz-executor 49660 133545 10496 0 3 0x4000090 fsleep syz-executor 82550 182323 61772 0 2 0 syz-executor 82550 47624 61772 0 3 0x4000080 lockf syz-executor 30514 102005 66588 0 2 0 syz-executor 30514 79550 66588 0 2 0x4000000 syz-executor 96029 397515 12868 0 2 0 syz-executor 96029 105223 12868 0 3 0x4000080 fsleep syz-executor 96029 468867 12868 0 3 0x4000080 fsleep syz-executor 61772 90790 12559 0 2 0x482 syz-executor 12868 294512 12559 0 2 0x482 syz-executor 10496 285758 12559 0 2 0x482 syz-executor 14216 378325 12559 0 7 0x2 syz-executor 3848 114280 12559 0 2 0x482 syz-executor *82696 337339 12559 0 7 0x2 syz-executor 45209 99334 12559 0 2 0x482 syz-executor 66588 280923 12559 0 2 0x482 syz-executor 84482 347040 0 0 3 0x14280 nfsidl nfsio 26498 130763 0 0 3 0x14280 nfsidl nfsio 15225 86307 0 0 3 0x14280 nfsidl nfsio 5954 451054 0 0 3 0x14280 nfsidl nfsio 32529 161066 0 0 3 0x14280 nfsidl nfsio 9064 523926 0 0 3 0x14280 nfsidl nfsio 46323 504225 0 0 3 0x14280 nfsidl nfsio 56608 107319 0 0 3 0x14280 nfsidl nfsio 55398 134468 0 0 3 0x14280 nfsidl nfsio 65853 33532 0 0 3 0x14280 nfsidl nfsio 11030 146294 0 0 3 0x14280 nfsidl nfsio 17144 152905 0 0 3 0x14280 nfsidl nfsio 75991 900 0 0 3 0x14280 nfsidl nfsio 11346 172263 0 0 3 0x14280 nfsidl nfsio 93970 155380 0 0 3 0x14280 nfsidl nfsio 64822 407897 0 0 3 0x14280 nfsidl nfsio 51814 108009 0 0 3 0x14280 nfsidl nfsio 93745 78723 0 0 3 0x14280 nfsidl nfsio 92880 251552 0 0 3 0x14280 nfsidl nfsio 19341 518379 0 0 3 0x14280 nfsidl nfsio 41129 268868 0 0 3 0x14200 acct acct 70999 60913 0 0 3 0x14200 bored sosplice 12559 407663 16255 0 3 0x82 kqread syz-executor 16255 608 1543 0 3 0x10008a sigsusp ksh 1543 306664 76731 0 3 0x98 kqread sshd-session 76731 46061 47052 0 3 0x92 kqread sshd-session 16813 469896 1 0 3 0x100083 ttyopn getty 47052 36755 1 0 3 0x88 kqread sshd 52601 265141 24055 74 3 0x1100092 bpf pflogd 24055 12347 1 0 3 0x80 sbwait pflogd 47277 159746 75580 73 3 0x1100090 kqread syslogd 75580 253023 1 0 3 0x100082 sbwait syslogd 53041 134578 1 0 3 0x100080 kqread resolvd 16367 125473 27228 77 3 0x100092 kqread dhcpleased 49146 79558 27228 77 3 0x100092 kqread dhcpleased 27228 167835 1 0 3 0x80 kqread dhcpleased 28541 346666 0 0 3 0x14200 bored smr 16289 181422 0 0 2 0x14200 zerothread 93656 244664 0 0 3 0x14200 aiodoned aiodoned 36804 373164 0 0 3 0x14200 syncer update 68902 121537 0 0 3 0x14200 cleaner cleaner 15585 63369 0 0 3 0x14200 reaper reaper 41540 471930 0 0 3 0x14200 pgdaemon pagedaemon 2311 390552 0 0 3 0x14200 bored viomb 45561 71737 0 0 3 0x40014200 acpi0 acpi0 60219 65116 0 0 3 0x40014200 idle1 66329 456068 0 0 3 0x14200 bored softnet3 23683 91050 0 0 3 0x14200 bored softnet2 48964 42698 0 0 3 0x14200 bored softnet1 38360 500168 0 0 2 0x14200 softnet0 88117 144731 0 0 3 0x14200 bored systqmp 33170 303460 0 0 3 0x14200 bored systq 82361 392484 0 0 3 0x14200 tmoslp softclockmp 99698 25556 0 0 2 0x40014200 softclock 94726 494344 0 0 3 0x40014200 idle0 1 485624 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 82696 (syz-executor) thread 0xffff8000371eb1e0 (337339) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83513ac8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 __mp_acquire_count+0x58 #2 mi_switch+0x658 sys/kern/sched_bsd.c:460 #3 sleep_finish+0x219 sys/kern/kern_synch.c:416 #4 biowait+0xc1 sys/kern/vfs_bio.c:1254 #5 bwrite+0x2e2 sys/kern/vfs_bio.c:766 #6 VOP_BWRITE+0x60 sys/kern/vfs_vops.c:646 #7 ufs_mkdir+0x581 sys/ufs/ufs/ufs_vnops.c:1160 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8079b4a4e0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:169 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806def3708) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10213 10297K 10417K 166960K 12112 0 pcb 17 14K 16K 166960K 247 0 rtable 200 7K 8K 166960K 1068 0 pf 35 17K 25K 166960K 116 0 ifaddr 40 7K 7K 166960K 151 0 ifgroup 55 2K 2K 166960K 172 0 sysctl 3 1K 2K 166960K 6 0 counters 64 36K 36K 166960K 130 0 ioctlops 0 0K 4K 166960K 1606 0 iov 0 0K 16K 166960K 74 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1425 90K 90K 166960K 2080 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 9 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 49 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 16 57K 93K 166960K 1018 0 sigio 0 0K 0K 166960K 3 0 proc 73 91K 116K 166960K 1157 0 subproc 104 6K 6K 166960K 377 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 71 0 in_multi 90 6K 7K 166960K 365 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 2 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 721 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 225 72K 95K 166960K 9675 0 UVM aobj 21 2K 2K 166960K 22 0 pinsyscall 41 82K 103K 166960K 2673 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 34 0 NDP 12 0K 2K 166960K 107 0 temp 45 6816K 6887K 166960K 30820 0 kqueue 13 20K 28K 166960K 119 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 120 0 117 1 0 1 1 0 8 0 rtentry 112 362 0 272 5 1 4 4 0 8 0 unpcb 144 480 0 463 7 5 2 6 0 8 1 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 808 262 0 258 8 0 8 8 0 8 7 arp 120 61 0 43 1 0 1 1 0 8 0 inpcb 336 1021 0 1011 14 7 7 7 0 8 6 nd6 136 93 0 70 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 1 0 1 0 8 0 kcovpl 48 29 0 21 1 0 1 1 0 8 0 ppxss 1168 8 0 8 3 2 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 5 0 0 1 0 1 1 0 482 0 pffrnode 88 5 0 0 1 0 1 1 0 8 0 pffrent 40 8 0 3 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 88 0 48 1 0 1 1 0 8 0 pfstkey 128 90 0 49 2 0 2 2 0 8 0 pfstate 376 88 0 49 4 0 4 4 0 8 0 pfrule 1344 22 0 18 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1517 0 1100 36 7 29 31 0 8 1 art_table 32 1518 0 1100 5 1 4 4 0 8 0 art_node 16 359 0 277 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 2 1 0 1 1 0 8 0 semapl 112 46 0 36 1 0 1 1 0 8 0 shmpl 112 19 0 1 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2604 0 1064 97 0 97 97 0 8 0 ffsino 272 2604 0 1064 104 0 104 104 0 8 0 nchpl 144 3624 0 3073 64 31 33 64 0 8 8 uvmvnodes 80 3262 0 0 67 0 67 67 0 8 0 vnodes 216 3262 0 0 182 0 182 182 0 8 0 namei 1024 14056 0 14055 3 2 1 2 0 8 0 percpumem 16 79 0 33 1 0 1 1 0 8 0 kstatmem 264 90 0 66 2 0 2 2 0 8 0 scxspl 216 18543 0 18543 12 9 3 8 1 8 3 plimitpl 152 151 0 133 1 0 1 1 0 8 0 sigapl 424 1308 0 1238 10 1 9 9 0 8 0 futexpl 64 8515 0 8512 5 4 1 1 0 8 0 knotepl 120 374 0 0 10 0 10 10 0 8 0 kqueuepl 216 327 0 318 8 0 8 8 0 8 7 pipepl 320 358 0 330 13 7 6 8 0 8 3 fdescpl 496 1268 0 1238 7 2 5 5 0 8 0 filepl 152 6481 0 6221 25 9 16 18 0 8 5 lockfpl 104 260 0 255 1 0 1 1 0 8 0 lockfspl 48 80 0 77 1 0 1 1 0 8 0 sessionpl 144 43 0 34 1 0 1 1 0 8 0 pgrppl 48 79 0 62 1 0 1 1 0 8 0 ucredpl 104 895 0 881 1 0 1 1 0 8 0 zombiepl 144 1240 0 1238 1 0 1 1 0 8 0 processpl 1160 1308 0 1238 7 1 6 6 0 8 0 procpl 648 2252 0 2177 9 1 8 8 0 8 0 srpgc 96 2 0 2 1 0 1 1 0 8 1 sosppl 168 2 0 2 2 2 0 1 0 8 0 sockpl 664 1629 0 1599 21 12 9 14 0 8 6 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 224 0 0 28 0 28 28 0 8 0 mtagpl 96 70 0 0 2 0 2 2 0 8 0 mbufpl 256 379 0 0 22 0 22 22 0 8 0 bufpl 280 8023 0 1837 443 0 443 443 0 8 0 anonpl 24 167510 0 164097 77 27 50 77 0 185 20 amapchunkpl 152 30254 0 29793 39 16 23 38 0 158 2 amappl16 200 2097 0 2068 35 25 10 15 0 8 8 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 155 0 143 1 0 1 1 0 8 0 amappl13 176 1 0 1 1 1 0 1 0 8 0 amappl12 168 2257 0 2227 3 1 2 2 0 8 0 amappl11 160 48 0 34 1 0 1 1 0 8 0 amappl10 152 8 0 8 1 1 0 1 0 8 0 amappl9 144 236 0 236 1 1 0 1 0 8 0 amappl8 136 18 0 16 1 0 1 1 0 8 0 amappl7 128 147 0 135 1 0 1 1 0 8 0 amappl6 120 372 0 371 1 0 1 1 0 8 0 amappl5 112 212 0 200 1 0 1 1 0 8 0 amappl4 104 379 0 359 1 0 1 1 0 8 0 amappl3 96 5856 0 5751 6 2 4 4 0 8 1 amappl2 88 954 0 886 2 0 2 2 0 8 0 amappl1 80 11494 0 10933 13 0 13 13 0 8 0 amappl 88 9090 0 8928 6 1 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 128 255 0 255 3 3 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 21 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1268 0 1238 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1268 0 1238 1 0 1 1 0 8 0 vmmpekpl 168 11485 0 11430 3 0 3 3 0 8 0 vmmpepl 168 79691 0 77880 108 13 95 95 0 357 11 vmsppl 440 1267 0 1238 6 2 4 5 0 8 0 rwobjpl 56 25738 0 21539 63 2 61 61 0 8 1 pdppl 4096 2543 0 2476 129 58 71 85 0 8 4 pvpl 32 42762 0 0 345 0 345 345 0 265 0 pmappl 248 1267 0 1238 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 456 0 79 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ufs_direnter(fffffd8078924128,fffffd807345eb58,ffff80002a0c2150,ffff80002a0c2470,fffffd807ba86140) at ufs_direnter+0x23c sys/ufs/ufs/ufs_lookup.c:764 ufs_mkdir(ffff80002a0c22e0) at ufs_mkdir+0x60f sys/ufs/ufs/ufs_vnops.c:1179 VOP_MKDIR(fffffd8078924128,ffff80002a0c2440,ffff80002a0c2470,ffff80002a0c2370) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff8000371eb1e0,ffffff9c,70830ff31d30,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 syscall(ffff80002a0c25f0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0c25f0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70830ff31dc0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff835138c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835138c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80002a11c080) at syscall+0x2cc mi_syscall sys/sys/syscall_mi.h:156 [inline] syscall(ffff80002a11c080) at syscall+0x2cc sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x734b2c797d20, count: 9 ddb{1}> trace x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff835138c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835138c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80002a11c080) at syscall+0x2cc mi_syscall sys/sys/syscall_mi.h:156 [inline] syscall(ffff80002a11c080) at syscall+0x2cc sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x734b2c797d20, count: -6