panic: ffs_valloc: dup alloc Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *336371 16182 0 0x2 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83435b99) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806d772ba8,41ed,fffffd80097fd3a8,ffff80002a3229d8) at ffs_inode_alloc+0x94e ufs_mkdir(ffff80002a322a40) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806cd927d8,ffff80002a322ba0,ffff80002a322bd0,ffff80002a322ad0) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80002a2427d8,ffffff9c,7bc24a9364c0,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3143 syscall(ffff80002a322d50) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a322d50) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bc24a936560, count: 7 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: ffs_valloc: dup alloc ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83435b99) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806d772ba8,41ed,fffffd80097fd3a8,ffff80002a3229d8) at ffs_inode_alloc+0x94e ufs_mkdir(ffff80002a322a40) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806cd927d8,ffff80002a322ba0,ffff80002a322bd0,ffff80002a322ad0) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80002a2427d8,ffffff9c,7bc24a9364c0,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3143 syscall(ffff80002a322d50) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a322d50) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bc24a936560, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a322750 rbx 0xffff8000299bee07 rdx 0 rcx 0xffff80002a2427d8 rax 0xffff8000299bdff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x8f3c9b0bfe4d64ed r11 0xc277643a52307b0d r12 0xffff8000299bec08 r13 0 r14 0 r15 0x1 rip 0xffffffff810ba845 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a322740 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=336371 pid=16182 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=0xffff80002a242a70,0xffff8000fffef780 process=0xffff8000ffff6b58 user=0xffff80002a31d000, vmspace=0xfffffd800b0637a0 estcpu=36, cpticks=9, pctcpu=0.6, user=0, sys=9, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 26950 155972 43216 -1 3 0x90 nanoslp syz-executor 26950 44967 43216 -1 3 0x4000090 fsleep syz-executor 26950 510681 43216 -1 3 0x4000090 fsleep syz-executor 26950 422031 43216 -1 3 0x4000090 fsleep syz-executor 14696 186645 68640 0 2 0 syz-executor 14696 132431 68640 0 3 0x4000080 fsleep syz-executor 2656 333063 80325 0 3 0x80 nanoslp syz-executor 2656 390039 80325 0 3 0x4000080 lockf syz-executor 2656 267307 80325 0 3 0x4000080 lockf syz-executor 2656 318912 80325 0 3 0x4000080 lockf syz-executor 2656 235239 80325 0 3 0x4000080 fsleep syz-executor 64793 67336 99506 0 3 0x80 nanoslp syz-executor 64793 467360 99506 0 3 0x4000080 kqsel syz-executor 99506 381301 22904 0 3 0x82 nanoslp syz-executor 68640 196710 22904 0 3 0x82 nanoslp syz-executor *16182 336371 22904 0 7 0x2 syz-executor 80325 285374 22904 0 3 0x82 nanoslp syz-executor 95364 18914 22904 0 2 0x2 syz-executor 43216 191429 22904 0 3 0x82 nanoslp syz-executor 22904 279807 82151 0 3 0x82 wait syz-executor 82151 310521 66817 0 3 0x10008a sigsusp ksh 66817 201807 96489 0 3 0x98 kqread sshd-session 96489 32882 8848 0 3 0x92 kqread sshd-session 57930 120366 1 0 3 0x100083 ttyopn getty 8848 56032 1 0 3 0x88 kqread sshd 84284 149918 49935 74 3 0x1100092 bpf pflogd 49935 312847 1 0 3 0x80 sbwait pflogd 3843 154127 85896 73 3 0x1100090 kqread syslogd 85896 365975 1 0 3 0x100082 sbwait syslogd 34429 225555 1 0 3 0x100080 kqread resolvd 78397 167484 22302 77 3 0x100092 kqread dhcpleased 17229 62842 22302 77 3 0x100092 kqread dhcpleased 22302 8302 1 0 3 0x80 kqread dhcpleased 89722 224856 0 0 3 0x14200 pause smr 82209 25867 0 0 2 0x14200 zerothread 6161 439799 0 0 3 0x14200 aiodoned aiodoned 13591 4204 0 0 3 0x14200 syncer update 42004 470001 0 0 3 0x14200 cleaner cleaner 20516 14192 0 0 3 0x14200 reaper reaper 64322 224022 0 0 3 0x14200 pgdaemon pagedaemon 20113 192540 0 0 3 0x14200 bored viomb 75184 36816 0 0 3 0x40014200 acpi0 acpi0 46203 369900 0 0 3 0x40014200 idle1 56862 283438 0 0 3 0x14200 bored softnet1 56617 222738 0 0 3 0x14200 bored softnet0 69145 172078 0 0 3 0x14200 bored systqmp 34364 487641 0 0 3 0x14200 bored systq 31970 106066 0 0 3 0x14200 tmoslp softclockmp 8737 117353 0 0 3 0x40014200 tmoslp softclock 33660 211520 0 0 3 0x40014200 idle0 1 10494 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff83ab8dc8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 uvm_pagezero_thread+0x1e1 sys/uvm/uvm_pmemrange.c:2227 #3 proc_trampoline+0x10 Process 16182 (syz-executor) thread 0xffff80002a2427d8 (336371) exclusive rrwlock inode r = 0 (0xfffffd806c6971f0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3143 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d772c48) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3128 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839dd2c0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] #1 syscall+0xaf4 sys/arch/amd64/amd64/trap.c:783 #2 Xsyscall+0x128 Process 95364 (syz-executor) thread 0xffff80002a242010 (18914) exclusive rrwlock inode r = 0 (0xfffffd806e77fec8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x98a sys/kern/vfs_lookup.c:567 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d6da550) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11063 12150K 12243K 166960K 12183 0 pcb 17 12K 12K 166960K 25 0 rtable 240 7K 7K 166960K 355 0 pf 34 17K 24K 166960K 55 0 ifaddr 43 7K 7K 166960K 46 0 ifgroup 55 2K 2K 166960K 57 0 sysctl 1 1K 9K 166960K 7 0 counters 70 37K 37K 166960K 74 0 ioctlops 0 0K 4K 166960K 1499 0 iov 0 0K 12K 166960K 3 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1295 81K 82K 166960K 1389 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 3 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 14 49K 97K 166960K 173 0 proc 74 131K 180K 166960K 560 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 6 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 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 49 228K 228K 166960K 49 0 exec 0 0K 1K 166960K 384 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 221 151K 160K 166960K 3450 0 UVM aobj 4 2K 2K 166960K 4 0 pinsyscall 39 78K 102K 166960K 1310 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 28 2K 2K 166960K 29 0 temp 37 9070K 9134K 166960K 4939 0 kqueue 13 20K 26K 166960K 33 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> 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 35 0 32 1 0 1 1 0 8 0 rtentry 176 111 0 1 5 0 5 5 0 8 0 unpcb 144 48 0 30 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 16 0 12 1 0 1 1 0 8 0 arp 136 18 0 0 1 0 1 1 0 8 0 inpcb 328 153 0 146 7 0 7 7 0 8 6 nd6 152 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 2 0 2 1 0 1 1 0 8 1 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 1 0 0 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 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pfstitem 24 17 0 0 1 0 1 1 0 8 0 pfstkey 128 17 0 0 1 0 1 1 0 8 0 pfstate 448 17 0 0 2 0 2 2 0 8 0 pfrule 1360 23 0 18 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 452 0 0 29 0 29 29 0 8 0 art_table 40 453 0 0 5 0 5 5 0 8 0 art_node 32 111 0 11 1 0 1 1 0 8 0 semapl 112 1 0 0 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1629 0 162 93 0 93 93 0 8 0 ffsino 296 1630 0 163 114 0 114 114 0 8 0 nchpl 144 1875 0 176 64 0 64 64 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 vnodes 216 1733 0 0 97 0 97 97 0 8 0 namei 1024 5716 0 5715 2 0 2 2 0 8 1 percpumem 16 52 0 2 1 0 1 1 0 8 0 kstatmem 264 28 0 2 2 0 2 2 0 8 0 scxspl 216 6345 0 6345 4 1 3 3 1 8 3 plimitpl 152 31 0 13 1 0 1 1 0 8 0 sigapl 424 485 0 441 7 0 7 7 0 8 1 knotepl 120 298 0 0 10 0 10 10 0 8 0 kqueuepl 224 30 0 20 1 0 1 1 0 8 0 pipepl 344 123 0 96 3 0 3 3 0 8 0 fdescpl 528 469 0 441 3 0 3 3 0 8 0 filepl 160 1819 0 1605 13 0 13 13 0 8 3 lockfpl 104 24 0 18 1 0 1 1 0 8 0 lockfspl 48 9 0 6 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 33 0 16 1 0 1 1 0 8 0 ucredpl 104 127 0 112 1 0 1 1 0 8 0 zombiepl 144 443 0 441 1 0 1 1 0 8 0 processpl 1232 485 0 441 5 0 5 5 0 8 1 procpl 664 561 0 508 6 0 6 6 0 8 0 sockpl 752 237 0 209 10 0 10 10 0 8 6 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 128 0 0 16 0 16 16 0 8 0 mcl2k 2048 12 0 0 2 0 2 2 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 128 0 0 8 0 8 8 0 8 0 bufpl 280 2405 0 105 165 0 165 165 0 8 0 anonpl 32 3774 0 0 31 0 31 31 0 246 0 amapchunkpl 152 9503 0 9061 22 0 22 22 0 158 2 amappl16 200 1660 0 1637 5 0 5 5 0 8 3 amappl15 192 2 0 2 1 0 1 1 0 8 1 amappl14 184 428 0 427 1 0 1 1 0 8 0 amappl13 176 116 0 104 1 0 1 1 0 8 0 amappl12 168 721 0 693 2 0 2 2 0 8 0 amappl11 160 7 0 7 1 0 1 1 0 8 1 amappl10 152 68 0 53 1 0 1 1 0 8 0 amappl9 144 268 0 268 1 0 1 1 0 8 1 amappl8 136 257 0 254 1 0 1 1 0 8 0 amappl7 128 142 0 129 1 0 1 1 0 8 0 amappl6 120 158 0 156 1 0 1 1 0 8 0 amappl5 112 92 0 81 1 0 1 1 0 8 0 amappl4 104 282 0 264 1 0 1 1 0 8 0 amappl3 96 1689 0 1588 4 0 4 4 0 8 0 amappl2 88 514 0 453 2 0 2 2 0 8 0 amappl1 80 9384 0 8793 14 0 14 14 0 8 0 amappl 88 2735 0 2585 5 0 5 5 0 92 0 uvmvnodes 80 99 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 469 0 441 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 469 0 441 1 0 1 1 0 8 0 vmmpekpl 168 5610 0 5574 2 0 2 2 0 8 0 vmmpepl 168 37882 0 36126 87 0 87 87 0 357 1 vmsppl 488 468 0 441 5 0 5 5 0 8 1 rwobjpl 80 13820 0 12806 23 0 23 23 0 8 0 pdppl 4096 945 0 882 99 16 83 87 0 8 20 pvpl 32 10350 0 0 84 0 84 84 0 265 0 pmappl 256 468 0 441 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 268 0 19 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff838d7ff0) 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 __sanitizer_cov_trace_const_cmp8(3b9ac9ff,ab5ff40) at __sanitizer_cov_trace_const_cmp8+0x35 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_const_cmp8(3b9ac9ff,ab5ff40) at __sanitizer_cov_trace_const_cmp8+0x35 sys/dev/kcov.c:236 tuagg_add_runtime() at tuagg_add_runtime+0x1be sys/kern/kern_resource.c:464 mi_switch() at mi_switch+0x128 sys/kern/sched_bsd.c:372 uvm_pagezero_thread(ffff8000ffffcf98) at uvm_pagezero_thread+0x80 sys/uvm/uvm_pmemrange.c:2212 end trace frame: 0x0, count: 8 ddb{0}> trace x86_ipi_db(ffffffff838d7ff0) 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 __sanitizer_cov_trace_const_cmp8(3b9ac9ff,ab5ff40) at __sanitizer_cov_trace_const_cmp8+0x35 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_const_cmp8(3b9ac9ff,ab5ff40) at __sanitizer_cov_trace_const_cmp8+0x35 sys/dev/kcov.c:236 tuagg_add_runtime() at tuagg_add_runtime+0x1be sys/kern/kern_resource.c:464 mi_switch() at mi_switch+0x128 sys/kern/sched_bsd.c:372 uvm_pagezero_thread(ffff8000ffffcf98) at uvm_pagezero_thread+0x80 sys/uvm/uvm_pmemrange.c:2212 end trace frame: 0x0, count: -7 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83435b99) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806d772ba8,41ed,fffffd80097fd3a8,ffff80002a3229d8) at ffs_inode_alloc+0x94e ufs_mkdir(ffff80002a322a40) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806cd927d8,ffff80002a322ba0,ffff80002a322bd0,ffff80002a322ad0) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80002a2427d8,ffffff9c,7bc24a9364c0,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3143 syscall(ffff80002a322d50) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a322d50) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bc24a936560, count: 7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83435b99) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806d772ba8,41ed,fffffd80097fd3a8,ffff80002a3229d8) at ffs_inode_alloc+0x94e ufs_mkdir(ffff80002a322a40) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806cd927d8,ffff80002a322ba0,ffff80002a322bd0,ffff80002a322ad0) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80002a2427d8,ffffff9c,7bc24a9364c0,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3143 syscall(ffff80002a322d50) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a322d50) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bc24a936560, count: -8