panic: ffs_valloc: dup alloc Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 47817 94978 0 0x2 0 0 syz-executor *476101 25305 0 0x2 0 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83365f40) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806c457a98,41ed,fffffd80097fb5b0,ffff80002a319d68) at ffs_inode_alloc+0x94e ufs_mkdir(ffff80002a319dd0) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806d312980,ffff80002a319f30,ffff80002a319f60,ffff80002a319e60) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80002a272d08,ffffff9c,72a46153be10,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 syscall(ffff80002a31a0e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a31a0e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72a46153beb0, 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(ffffffff83365f40) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806c457a98,41ed,fffffd80097fb5b0,ffff80002a319d68) at ffs_inode_alloc+0x94e ufs_mkdir(ffff80002a319dd0) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806d312980,ffff80002a319f30,ffff80002a319f60,ffff80002a319e60) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80002a272d08,ffffff9c,72a46153be10,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 syscall(ffff80002a31a0e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a31a0e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72a46153beb0, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a319ae0 rbx 0xffff8000299eeddf rdx 0 rcx 0xffff80002a272d08 rax 0xffff8000299edff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xb1e20f1dfafda0db r11 0x8433c01e5dd5906e r12 0xffff8000299eebe0 r13 0 r14 0 r15 0x1 rip 0xffffffff8324b8f5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a319ad0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=476101 pid=25305 tcnt=1 stat=onproc flags process=2 proc=0 runpri=76, usrpri=76, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffffc2a0,0xffff80002a272550 process=0xffff8000ffff3500 user=0xffff80002a315000, vmspace=0xfffffd800b0277a0 estcpu=36, cpticks=29, pctcpu=0.18, user=0, sys=29, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 21862 143681 75411 0 3 0x80 nanoslp syz-executor 21862 390567 75411 0 3 0x4000080 kqread syz-executor 21862 482813 75411 0 3 0x4000080 fsleep syz-executor 98805 354632 0 0 3 0x14200 bored sosplice 94978 47817 41530 0 7 0x2 syz-executor 75411 429975 41530 0 3 0x82 nanoslp syz-executor 95080 50207 41530 0 3 0x82 wait syz-executor 15344 56836 41530 0 3 0x82 nanoslp syz-executor *25305 476101 41530 0 7 0x2 syz-executor 70770 389606 41530 0 3 0x2 biowait syz-executor 41530 39743 8356 0 3 0x82 wait syz-executor 8356 287133 74232 0 3 0x10008a sigsusp ksh 74232 94360 89257 0 3 0x98 kqread sshd-session 89257 16355 32153 0 3 0x92 kqread sshd-session 13198 467814 1 0 3 0x100083 ttyin getty 32153 505526 1 0 3 0x88 kqread sshd 32139 259492 49803 74 3 0x1100092 bpf pflogd 49803 85145 1 0 3 0x80 sbwait pflogd 20088 23105 56748 73 3 0x1100090 kqread syslogd 56748 377249 1 0 3 0x100082 sbwait syslogd 53745 334308 1 0 3 0x100080 kqread resolvd 93874 92629 88050 77 3 0x100092 kqread dhcpleased 17718 202892 88050 77 3 0x100092 kqread dhcpleased 88050 453071 1 0 3 0x80 kqread dhcpleased 55161 404159 0 0 3 0x14200 bored smr 80098 351815 0 0 3 0x14200 pgzero zerothread 6303 128222 0 0 3 0x14200 aiodoned aiodoned 18006 304820 0 0 3 0x14200 syncer update 68450 439186 0 0 3 0x14200 cleaner cleaner 60155 316595 0 0 3 0x14200 reaper reaper 42975 345155 0 0 3 0x14200 pgdaemon pagedaemon 14585 300389 0 0 3 0x14200 bored viomb 59825 179180 0 0 3 0x40014200 acpi0 acpi0 59366 400948 0 0 3 0x40014200 idle1 12496 87413 0 0 3 0x14200 bored softnet1 60853 218047 0 0 3 0x14200 bored softnet0 47786 77401 0 0 3 0x14200 bored systqmp 26041 231927 0 0 3 0x14200 bored systq 84782 188729 0 0 3 0x14200 tmoslp softclockmp 30103 327920 0 0 3 0x40014200 tmoslp softclock 11814 33985 0 0 3 0x40014200 idle0 1 436855 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 25305 (syz-executor) thread 0xffff80002a272d08 (476101) exclusive rrwlock inode r = 0 (0xfffffd806e264120) #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+0xa3 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:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c457b38) #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+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #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:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839def08) #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:748 #2 Xsyscall+0x128 Process 70770 (syz-executor) thread 0xffff8000ffffc2a0 (389606) exclusive rrwlock inode r = 0 (0xfffffd806c1448f8) #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+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:687 #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+0x93a sys/kern/vfs_lookup.c:566 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c144d98) #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+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:687 #6 cache_lookup+0x351 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #10 namei+0x7ca sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #12 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #13 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10200 11028K 11273K 166960K 11615 0 pcb 17 12K 12K 166960K 48 0 rtable 256 9K 11K 166960K 399 0 pf 36 17K 21K 166960K 74 0 ifaddr 44 7K 7K 166960K 55 0 ifgroup 57 2K 2K 166960K 74 0 sysctl 4 1K 9K 166960K 11 0 counters 70 37K 37K 166960K 96 0 ioctlops 0 0K 4K 166960K 1524 0 iov 0 0K 16K 166960K 16 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1467 92K 92K 166960K 1648 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 77 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 13 45K 89K 166960K 344 0 sigio 0 0K 0K 166960K 6 0 proc 72 115K 180K 166960K 546 0 subproc 72 4K 4K 166960K 73 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 35 0 in_multi 99 7K 7K 166960K 111 0 ether_multi 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 400 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 216 158K 177K 166960K 4979 0 UVM aobj 77 5K 5K 166960K 79 0 pinsyscall 38 76K 102K 166960K 1473 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 9 0 NDP 13 0K 1K 166960K 36 0 temp 39 8647K 8714K 166960K 17517 0 kqueue 15 22K 31K 166960K 92 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 47 0 44 1 0 1 1 0 8 0 rtentry 176 118 0 4 6 0 6 6 0 8 0 unpcb 144 135 0 118 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 58 0 53 1 0 1 1 0 8 0 arp 136 20 0 1 1 0 1 1 0 8 0 inpcb 328 394 0 384 7 0 7 7 0 8 5 nd6 152 26 0 0 1 0 1 1 0 8 0 pkpcb 40 5 0 5 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 13 0 12 1 0 1 1 0 8 0 pffrag 232 4 0 0 1 0 1 1 0 482 0 pffrnode 88 4 0 0 1 0 1 1 0 8 0 pffrent 40 5 0 1 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 4 0 4 1 0 1 1 0 8 1 pfanchor 1288 1 0 1 1 0 1 1 0 8 1 pftag 88 1 0 1 1 0 1 1 0 8 1 pfstitem 24 37 0 0 1 0 1 1 0 8 0 pfstkey 128 37 0 0 2 0 2 2 0 8 0 pfstate 384 37 0 0 4 0 4 4 0 8 0 pfrule 1344 24 0 19 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 457 0 2 29 0 29 29 0 8 0 art_table 40 460 0 2 5 0 5 5 0 8 0 art_node 32 118 0 14 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 75 0 65 1 0 1 1 0 8 0 shmpl 112 76 0 2 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1972 0 461 96 0 96 96 0 8 0 ffsino 296 1972 0 461 117 0 117 117 0 8 0 nchpl 144 2469 0 767 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 vnodes 216 2262 0 0 126 0 126 126 0 8 0 namei 1024 7759 0 7758 1 0 1 1 0 8 0 percpumem 16 63 0 13 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 1 1 0 1 1 0 8 1 kstatmem 264 42 0 14 3 0 3 3 0 8 0 scxspl 216 13314 0 13313 10 2 8 8 1 8 7 plimitpl 152 164 0 145 1 0 1 1 0 8 0 sigapl 424 654 0 610 7 1 6 7 0 8 0 knotepl 120 296 0 0 9 0 9 9 0 8 0 kqueuepl 224 146 0 136 3 0 3 3 0 8 2 pipepl 344 149 0 122 3 0 3 3 0 8 0 fdescpl 528 637 0 610 3 0 3 3 0 8 0 filepl 160 3249 0 3035 16 0 16 16 0 8 5 lockfpl 104 75 0 73 1 0 1 1 0 8 0 lockfspl 48 35 0 33 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 104 297 0 284 1 0 1 1 0 8 0 zombiepl 144 614 0 610 1 0 1 1 0 8 0 processpl 1232 654 0 610 5 0 5 5 0 8 0 procpl 664 1033 0 987 6 0 6 6 0 8 1 sosppl 168 3 0 3 1 0 1 1 0 8 1 sockpl 752 583 0 553 11 0 11 11 0 8 7 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 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 114 0 0 15 0 15 15 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 164 0 0 11 0 11 11 0 8 0 bufpl 280 5434 0 130 379 0 379 379 0 8 0 anonpl 32 11311 0 0 92 0 92 92 0 246 0 amapchunkpl 152 15724 0 15308 28 0 28 28 0 158 5 amappl16 200 3192 0 3164 25 7 18 23 0 8 8 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 5 0 5 1 1 0 1 0 8 0 amappl13 176 423 0 422 1 0 1 1 0 8 0 amappl12 168 994 0 956 3 1 2 3 0 8 0 amappl11 160 4 0 4 1 1 0 1 0 8 0 amappl10 152 51 0 37 1 0 1 1 0 8 0 amappl9 144 249 0 249 1 1 0 1 0 8 0 amappl8 136 28 0 25 1 0 1 1 0 8 0 amappl7 128 82 0 79 1 0 1 1 0 8 0 amappl6 120 282 0 269 1 0 1 1 0 8 0 amappl5 112 79 0 69 1 0 1 1 0 8 0 amappl4 104 417 0 386 1 0 1 1 0 8 0 amappl3 96 2542 0 2470 4 1 3 3 0 8 0 amappl2 88 760 0 686 2 0 2 2 0 8 0 amappl1 80 10171 0 9589 14 0 14 14 0 8 0 amappl 88 4213 0 4073 5 0 5 5 0 92 0 uvmvnodes 80 2262 0 0 47 0 47 47 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 78 0 2 2 0 2 2 0 8 0 uaddrrnd 24 637 0 610 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 637 0 610 1 0 1 1 0 8 0 vmmpekpl 168 7037 0 6993 3 0 3 3 0 8 0 vmmpepl 168 48821 0 47112 104 0 104 104 0 357 7 vmsppl 488 636 0 610 5 0 5 5 0 8 1 rwobjpl 80 19446 0 16208 74 0 74 74 0 8 0 pdppl 4096 1282 0 1220 96 24 72 84 0 8 10 pvpl 32 19639 0 0 159 0 159 159 0 265 0 pmappl 256 636 0 610 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 268 0 26 7 0 7 7 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837cdff0) 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(ffffffff839ded00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839ded00) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a3ce970,ffff80000007aa80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff839ded00) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839ded00) at __mp_lock+0x199 sys/kern/kern_lock.c:165 syscall(ffff80002a3ceb40) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] syscall(ffff80002a3ceb40) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c4895937ed0, count: 6 ddb{0}> trace x86_ipi_db(ffffffff837cdff0) 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(ffffffff839ded00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839ded00) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80002a3ce970,ffff80000007aa80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff839ded00) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839ded00) at __mp_lock+0x199 sys/kern/kern_lock.c:165 syscall(ffff80002a3ceb40) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] syscall(ffff80002a3ceb40) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c4895937ed0, count: -9 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(ffffffff83365f40) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806c457a98,41ed,fffffd80097fb5b0,ffff80002a319d68) at ffs_inode_alloc+0x94e ufs_mkdir(ffff80002a319dd0) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806d312980,ffff80002a319f30,ffff80002a319f60,ffff80002a319e60) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80002a272d08,ffffff9c,72a46153be10,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 syscall(ffff80002a31a0e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a31a0e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72a46153beb0, count: 7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83365f40) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806c457a98,41ed,fffffd80097fb5b0,ffff80002a319d68) at ffs_inode_alloc+0x94e ufs_mkdir(ffff80002a319dd0) at ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806d312980,ffff80002a319f30,ffff80002a319f60,ffff80002a319e60) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80002a272d08,ffffff9c,72a46153be10,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 syscall(ffff80002a31a0e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a31a0e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72a46153beb0, count: -8