panic: mutex 0xfffffd8067fdb138 not held in mtx_leave Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 344376 9038 32767 0x10 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83078e14) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_leave(fffffd8067fdb138) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd8067fdb050,fffffd8067fdb138,4,ffffffff832a21d0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd8067fdb020,d0d20646000,0) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvm_map_protect(fffffd8067fdb020,d0d20446000,d0d20646000,3,0,0,c9a592d9a2b88d0a) at uvm_map_protect+0xe1 sys/uvm/uvm_map.c:3059 sys_mprotect(ffff800037233980,ffff80002c3acc60,ffff80002c3acbb0) at sys_mprotect+0x34c sys/uvm/uvm_mmap.c:585 syscall(ffff80002c3acc60) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002c3acc60) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e88e932d740, 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: mutex 0xfffffd8067fdb138 not held in mtx_leave ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83078e14) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_leave(fffffd8067fdb138) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd8067fdb050,fffffd8067fdb138,4,ffffffff832a21d0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd8067fdb020,d0d20646000,0) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvm_map_protect(fffffd8067fdb020,d0d20446000,d0d20646000,3,0,0,c9a592d9a2b88d0a) at uvm_map_protect+0xe1 sys/uvm/uvm_map.c:3059 sys_mprotect(ffff800037233980,ffff80002c3acc60,ffff80002c3acbb0) at sys_mprotect+0x34c sys/uvm/uvm_mmap.c:585 syscall(ffff80002c3acc60) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002c3acc60) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e88e932d740, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002c3ac860 rbx 0xffffffff834aedbf cpu_info_full_primary+0x2dbf rdx 0 rcx 0xffff800037233980 rax 0xffffffff834adff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x6ceb027489a343b9 r11 0x1558f1363dee2bf5 r12 0xffffffff834aebc0 cpu_info_full_primary+0x2bc0 r13 0 r14 0 r15 0x1 rip 0xffffffff816a99e5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002c3ac850 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=298049 pid=46469 tcnt=4 stat=sleep flags process=10 proc=20 runpri=32, usrpri=82, slppri=4, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800037232a50,0xffff800037233708 process=0xffff8000fffec930 user=0xffff80002c3a7000, vmspace=0xfffffd8067fdb020 estcpu=36, cpticks=3, pctcpu=0.0, user=2, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *46469 298049 49483 32767 3 0x30 syz-executor 46469 223522 49483 32767 3 0x4000090 fsleep syz-executor 46469 116911 49483 32767 3 0x4000090 fsleep syz-executor 46469 316699 49483 32767 3 0x4000090 fsleep syz-executor 97888 298472 473 32767 3 0x90 nanoslp syz-executor 97888 168468 473 32767 3 0x4000090 kqsel syz-executor 97888 336791 473 32767 3 0x4000090 fsleep syz-executor 49483 280114 73883 32767 3 0x90 nanoslp syz-executor 73883 296529 79110 0 3 0x82 wait syz-executor 51511 218091 24311 32767 3 0x90 nanoslp syz-executor 51511 338199 24311 32767 3 0x4000090 sbwait syz-executor 51511 237763 24311 32767 3 0x4000090 sbwait syz-executor 51511 309924 24311 32767 3 0x4000090 fsleep syz-executor 43361 456026 46090 32767 2 0x10 syz-executor 43361 462835 46090 32767 3 0x4000090 fsleep syz-executor 43361 469770 46090 32767 3 0x4000090 ttyout syz-executor 76706 420365 15843 32767 2 0x10 syz-executor 15843 368032 79110 0 3 0x82 wait syz-executor 46090 179828 98110 32767 3 0x90 nanoslp syz-executor 98110 426202 79110 0 3 0x82 wait syz-executor 9038 344376 59023 32767 7 0x10 syz-executor 94680 416991 18625 32767 3 0x10 biowait syz-executor 24311 160399 76142 32767 3 0x90 nanoslp syz-executor 473 114834 68689 32767 3 0x90 nanoslp syz-executor 18625 81406 79110 0 3 0x82 wait syz-executor 59023 274715 79110 0 3 0x82 wait syz-executor 76142 296268 79110 0 3 0x82 wait syz-executor 68689 29839 79110 0 3 0x82 wait syz-executor 11369 204584 33059 32767 3 0x90 nanoslp syz-executor 33059 141581 79110 0 3 0x82 wait syz-executor 4362 233076 95522 0 3 0x82 netio sshd-session 62303 258087 0 0 3 0x14200 bored sosplice 79110 190085 89387 0 3 0x82 kqread syz-executor 89387 468900 14278 0 3 0x10008a sigsusp ksh 14278 483998 93009 0 3 0x98 kqread sshd-session 93009 193589 95522 0 3 0x92 kqread sshd-session 87562 155769 1 0 3 0x100083 ttyin getty 95522 162078 1 0 3 0x88 kqread sshd 19729 365427 26980 73 3 0x1100090 kqread syslogd 26980 459701 1 0 3 0x100082 sbwait syslogd 66848 123312 1 0 3 0x100080 kqread resolvd 42294 71266 90588 77 3 0x100092 kqread dhcpleased 73778 357134 90588 77 3 0x100092 kqread dhcpleased 90588 183915 1 0 3 0x80 kqread dhcpleased 79410 246388 0 0 3 0x14200 bored smr 40038 509132 0 0 2 0x14200 zerothread 33611 361698 0 0 3 0x14200 aiodoned aiodoned 84824 189647 0 0 3 0x14200 syncer update 7684 443574 0 0 3 0x14200 cleaner cleaner 62604 261952 0 0 3 0x14200 reaper reaper 67975 96958 0 0 3 0x14200 pgdaemon pagedaemon 81901 147212 0 0 3 0x14200 bored viomb 24761 295719 0 0 3 0x40014200 acpi0 acpi0 61194 305912 0 0 3 0x40014200 idle1 10296 434873 0 0 3 0x14200 bored softnet3 46020 290933 0 0 3 0x14200 bored softnet2 92335 198639 0 0 3 0x14200 bored softnet1 20080 217225 0 0 3 0x14200 bored softnet0 95446 34400 0 0 3 0x14200 bored systqmp 49281 44797 0 0 3 0x14200 bored systq 6347 322852 0 0 3 0x14200 tmoslp softclockmp 96153 444333 0 0 3 0x40014200 tmoslp softclock 895 330369 0 0 3 0x40014200 idle0 1 97539 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &map->flags_lock r = 0 (0xfffffd8067fdb178) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 vm_map_lock_ln+0x153 sys/uvm/uvm_map.c:5258 #4 uvm_map_protect+0xe1 sys/uvm/uvm_map.c:3059 #5 sys_mprotect+0x34c sys/uvm/uvm_mmap.c:585 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 46469 (syz-executor) thread 0xffff800037232f60 (116911) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835a2200) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #1 syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 #2 Xsyscall+0x128 Process 94680 (syz-executor) thread 0xffff8000ffff76e0 (416991) exclusive rrwlock inode r = 0 (0xfffffd806776e4e8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 (0xfffffd8064dc81b0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 10189 11048K 11059K 166960K 11381 0 pcb 17 12K 12K 166960K 17 0 rtable 240 6K 7K 166960K 1522 0 pf 31 16K 16K 166960K 107 0 ifaddr 42 7K 7K 166960K 197 0 ifgroup 50 2K 2K 166960K 202 0 sysctl 1 0K 0K 166960K 2 0 counters 64 36K 36K 166960K 140 0 ioctlops 0 0K 2K 166960K 88 0 iov 0 0K 20K 166960K 151 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1457 92K 92K 166960K 2181 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 17 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 81 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 23 85K 147K 166960K 1686 0 sigio 0 0K 0K 166960K 16 0 proc 58 79K 176K 166960K 1628 0 subproc 104 6K 12K 166960K 715 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 296 0 in_multi 99 7K 7K 166960K 551 0 ether_multi 1 0K 0K 166960K 8 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 995 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 258 76K 122K 166960K 14876 0 UVM aobj 31 4K 4K 166960K 37 0 pinsyscall 46 92K 124K 166960K 3793 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 82 0 NDP 13 0K 2K 166960K 138 0 temp 76 6824K 6889K 166960K 13995 0 kqueue 13 20K 32K 166960K 223 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 120 199 0 195 1 0 1 1 0 8 0 rtentry 112 532 0 419 5 1 4 4 0 8 0 unpcb 144 1165 0 1134 9 7 2 6 0 8 0 syncache 336 31 0 31 5 4 1 1 0 8 1 tcpqe 32 10 0 10 3 2 1 1 0 8 1 tcpcb 808 837 0 821 20 13 7 8 0 8 4 arp 120 91 0 73 1 0 1 1 0 8 0 ipq 40 4 0 1 2 1 1 1 0 8 0 ipqe 40 48 0 45 2 1 1 1 0 8 0 inpcb 336 1931 0 1908 21 13 8 10 0 8 5 nd6 136 150 0 123 1 0 1 1 0 8 0 kcovpl 48 55 0 47 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2145 0 1673 42 12 30 30 0 8 0 art_table 32 2146 0 1673 4 0 4 4 0 8 0 art_node 16 531 0 428 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 3 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 78 0 68 1 0 1 1 0 8 0 shmpl 112 34 0 6 1 0 1 1 0 8 0 dirhash 1024 31 0 14 3 0 3 3 0 8 0 dino2pl 256 3128 0 1501 102 0 102 102 0 8 0 ffsino 272 3128 0 1501 109 0 109 109 0 8 0 nchpl 144 4619 0 2851 66 0 66 66 0 8 0 uvmvnodes 80 3852 0 0 79 0 79 79 0 8 0 vnodes 216 3852 0 0 214 0 214 214 0 8 0 namei 1024 19100 0 19099 6 5 1 2 0 8 0 percpumem 16 84 0 38 1 0 1 1 0 8 0 kstatmem 264 98 0 76 2 0 2 2 0 8 0 scxspl 216 26102 0 26101 14 10 4 8 1 8 3 plimitpl 152 291 0 266 3 1 2 2 0 8 0 sigapl 424 1899 0 1844 8 0 8 8 0 8 0 futexpl 64 14282 0 14276 3 2 1 1 0 8 0 knotepl 120 569 0 0 17 0 17 17 0 8 0 kqueuepl 216 316 0 306 2 0 2 2 0 8 1 pipepl 320 376 0 348 5 1 4 5 0 8 0 fdescpl 496 1880 0 1844 9 2 7 7 0 8 0 filepl 152 10046 0 9772 22 8 14 17 0 8 0 lockfpl 104 322 0 319 1 0 1 1 0 8 0 lockfspl 48 109 0 106 1 0 1 1 0 8 0 sessionpl 144 84 0 67 1 0 1 1 0 8 0 pgrppl 48 186 0 161 1 0 1 1 0 8 0 ucredpl 104 1857 0 1838 1 0 1 1 0 8 0 zombiepl 144 1845 0 1844 1 0 1 1 0 8 0 processpl 1160 1899 0 1844 6 0 6 6 0 8 1 procpl 648 3472 0 3407 7 0 7 7 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 24 0 24 4 3 1 1 0 8 1 sockpl 664 3313 0 3255 22 12 10 16 0 8 3 mcl64k 65536 4 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 10 0 0 2 0 2 2 0 8 0 mcl4k 4096 145 0 0 19 1 18 19 0 8 0 mcl2k 2048 55 0 0 7 1 6 7 0 8 1 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 340 0 0 21 0 21 21 0 8 0 bufpl 280 6974 0 800 442 0 442 442 0 8 0 anonpl 24 351090 0 347268 56 5 51 53 0 185 18 amapchunkpl 152 48607 0 47786 37 4 33 36 0 158 1 amappl16 200 8433 0 8418 47 36 11 14 0 8 8 amappl15 192 14 0 14 1 1 0 1 0 8 0 amappl14 184 297 0 286 1 0 1 1 0 8 0 amappl13 176 38 0 37 1 0 1 1 0 8 0 amappl12 168 3118 0 3082 3 0 3 3 0 8 0 amappl11 160 58 0 48 1 0 1 1 0 8 0 amappl10 152 11 0 11 1 1 0 1 0 8 0 amappl9 144 155 0 154 1 0 1 1 0 8 0 amappl8 136 27 0 25 1 0 1 1 0 8 0 amappl7 128 204 0 193 1 0 1 1 0 8 0 amappl6 120 541 0 540 1 0 1 1 0 8 0 amappl5 112 309 0 299 1 0 1 1 0 8 0 amappl4 104 497 0 481 1 0 1 1 0 8 0 amappl3 96 9468 0 9340 4 0 4 4 0 8 0 amappl2 88 1457 0 1389 3 1 2 3 0 8 0 amappl1 80 20799 0 20180 17 1 16 16 0 8 0 amappl 88 14049 0 13852 6 0 6 6 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 36 0 6 1 0 1 1 0 8 0 uaddrrnd 24 1880 0 1844 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1880 0 1844 1 0 1 1 0 8 0 vmmpekpl 168 19179 0 19122 5 0 5 5 0 8 1 vmmpepl 168 130806 0 128770 119 12 107 108 0 357 5 vmsppl 448 1879 0 1844 6 0 6 6 0 8 0 rwobjpl 56 46318 0 41493 75 3 72 72 0 8 2 pdppl 4096 3767 0 3688 189 102 87 109 0 8 8 pvpl 32 30914 0 0 249 0 249 249 0 265 0 pmappl 248 1879 0 1844 5 1 4 4 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 558 0 153 13 0 13 13 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83078e14) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_leave(fffffd8067fdb138) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd8067fdb050,fffffd8067fdb138,4,ffffffff832a21d0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd8067fdb020,d0d20646000,0) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvm_map_protect(fffffd8067fdb020,d0d20446000,d0d20646000,3,0,0,c9a592d9a2b88d0a) at uvm_map_protect+0xe1 sys/uvm/uvm_map.c:3059 sys_mprotect(ffff800037233980,ffff80002c3acc60,ffff80002c3acbb0) at sys_mprotect+0x34c sys/uvm/uvm_mmap.c:585 syscall(ffff80002c3acc60) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002c3acc60) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e88e932d740, count: -9 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(ffffffff835a1ff8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835a1ff8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff8000371b2bc0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000371b2bc0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71a2045f0130, 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(ffffffff835a1ff8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835a1ff8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff8000371b2bc0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000371b2bc0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71a2045f0130, count: -6