panic: ffs_valloc: dup alloc Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *384000 95799 0 0x2 0 0K syz-executor 120461 37182 0 0x14000 0x200 1 reaper db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830de40a) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd8076b1d660,41c0,fffffd807f7d3888,ffff80002a102488) at ffs_inode_alloc+0x96c sys/ufs/ffs/ffs_alloc.c:404 ufs_mkdir(ffff80002a1024f0) at ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806edfdcd8,ffff80002a102650,ffff80002a102680,ffff80002a102580) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff8000353907c0,ffffff9c,7337801bae20,1c0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3100 syscall(ffff80002a102800) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a102800) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7337801bade0, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: ffs_valloc: dup alloc ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830de40a) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd8076b1d660,41c0,fffffd807f7d3888,ffff80002a102488) at ffs_inode_alloc+0x96c sys/ufs/ffs/ffs_alloc.c:404 ufs_mkdir(ffff80002a1024f0) at ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806edfdcd8,ffff80002a102650,ffff80002a102680,ffff80002a102580) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff8000353907c0,ffffff9c,7337801bae20,1c0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3100 syscall(ffff80002a102800) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a102800) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7337801bade0, count: -8 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a102210 rbx 0xffffffff83495d87 cpu_info_full_primary+0x2d87 rdx 0 rcx 0xffff8000353907c0 rax 0xffffffff83494ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xf9a438b2f65b980d r11 0x8ba3887ba86075ca r12 0xffffffff83495b88 cpu_info_full_primary+0x2b88 r13 0 r14 0 r15 0x1 rip 0xffffffff81662935 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a102200 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=384000 pid=95799 tcnt=1 stat=onproc flags process=2 proc=0 runpri=62, usrpri=62, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000371cfc08,0xffffffff835a7f08 process=0xffff8000371d1fd8 user=0xffff80002a0fd000, vmspace=0xfffffd806c68a1d0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *95799 384000 29892 0 7 0x2 syz-executor 63844 5155 0 0 3 0x14200 bored sosplice 99838 452054 29892 0 2 0x2 syz-executor 17811 271867 29892 0 2 0x82 syz-executor 36141 10194 29892 0 3 0x82 wait syz-executor 84548 193665 29892 0 3 0x82 wait syz-executor 49188 376334 29892 0 3 0x2 biowait syz-executor 10510 214686 29892 0 3 0x82 piperd syz-executor 29892 387119 20665 0 3 0x82 wait syz-executor 20665 459894 9827 0 3 0x10008a sigsusp ksh 9827 337858 24803 0 3 0x98 kqread sshd-session 24803 48851 13604 0 3 0x92 kqread sshd-session 19198 62190 1 0 3 0x100083 ttyin getty 13604 45183 1 0 3 0x88 kqread sshd 37466 27128 33832 74 3 0x1100092 bpf pflogd 33832 411009 1 0 3 0x80 sbwait pflogd 22282 208905 13812 73 3 0x1100090 kqread syslogd 13812 287029 1 0 3 0x100082 sbwait syslogd 75647 123524 1 0 3 0x100080 kqread resolvd 83253 339865 52085 77 3 0x100092 kqread dhcpleased 16121 268536 52085 77 3 0x100092 kqread dhcpleased 52085 177283 1 0 3 0x80 kqread dhcpleased 89500 226983 0 0 3 0x14200 bored smr 18738 519581 0 0 2 0x14200 zerothread 16853 172518 0 0 3 0x14200 aiodoned aiodoned 28033 95960 0 0 3 0x14200 syncer update 89450 491117 0 0 3 0x14200 cleaner cleaner 37182 120461 0 0 7 0x14200 reaper 13671 67525 0 0 3 0x14200 pgdaemon pagedaemon 48524 272683 0 0 3 0x14200 bored viomb 36307 308325 0 0 3 0x40014200 acpi0 acpi0 98178 38470 0 0 3 0x40014200 idle1 67944 402710 0 0 3 0x14200 bored softnet3 97752 87944 0 0 3 0x14200 bored softnet2 18355 358160 0 0 3 0x14200 bored softnet1 21535 171509 0 0 3 0x14200 bored softnet0 11012 42964 0 0 3 0x14200 bored systqmp 74118 329207 0 0 3 0x14200 bored systq 17476 295393 0 0 3 0x14200 tmoslp softclockmp 49214 476433 0 0 3 0x40014200 tmoslp softclock 3853 4792 0 0 3 0x40014200 idle0 1 353809 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 95799 (syz-executor) thread 0xffff8000353907c0 (384000) exclusive rrwlock inode r = 0 (0xfffffd806cfbfe78) #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:120 #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:3100 #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 (0xfffffd8076b1d6f8) #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:3085 #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 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8357dcf0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #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 49188 (syz-executor) thread 0xffff8000ffff6cc8 (376334) exclusive rrwlock inode r = 0 (0xfffffd806cfbf928) #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 vget+0x2bd sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x171 sys/ufs/ufs/ufs_ihash.c:95 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80672f4810) #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 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #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 10187 10163K 10360K 166960K 11483 0 pcb 17 12K 12K 166960K 28 0 rtable 212 6K 6K 166960K 588 0 pf 32 17K 20K 166960K 77 0 ifaddr 39 6K 7K 166960K 80 0 ifgroup 51 2K 2K 166960K 92 0 counters 62 36K 36K 166960K 82 0 ioctlops 0 0K 4K 166960K 1503 0 iov 0 0K 12K 166960K 3 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1372 86K 86K 166960K 1528 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 6 0K 0K 166960K 7 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 10 30K 93K 166960K 314 0 sigio 0 0K 0K 166960K 1 0 proc 70 91K 140K 166960K 759 0 subproc 91 5K 6K 166960K 208 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 9 0 in_multi 88 6K 7K 166960K 188 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 468 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 184 63K 90K 166960K 3961 0 UVM aobj 6 2K 2K 166960K 7 0 pinsyscall 35 70K 105K 166960K 1593 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 11 0K 2K 166960K 53 0 temp 32 6814K 6879K 166960K 7132 0 kqueue 13 20K 26K 166960K 34 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 52 0 49 1 0 1 1 0 8 0 rtentry 112 199 0 100 4 0 4 4 0 8 1 unpcb 144 106 0 89 2 1 1 2 0 8 0 syncache 336 3 0 3 2 2 0 1 0 8 0 tcpcb 808 31 0 27 1 0 1 1 0 8 0 arp 120 34 0 18 1 0 1 1 0 8 0 inpcb 336 221 0 214 7 6 1 7 0 8 0 nd6 136 48 0 27 1 0 1 1 0 8 0 kcovpl 48 16 0 9 1 0 1 1 0 8 0 pffrag 232 2 0 1 2 1 1 1 0 482 0 pffrnode 88 2 0 1 2 1 1 1 0 8 0 pffrent 40 3 0 2 2 1 1 1 0 8 0 pfosfp 40 1430 0 1006 5 0 5 5 0 8 0 pfosfpen 112 1430 0 715 21 0 21 21 0 8 0 pfstitem 24 27 0 15 1 0 1 1 0 8 0 pfstkey 128 27 0 15 1 0 1 1 0 8 0 pfstate 376 27 0 15 3 0 3 3 0 8 0 pfrule 1344 22 0 16 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 807 0 396 29 0 29 29 0 8 3 art_table 32 808 0 396 4 0 4 4 0 8 0 art_node 16 198 0 108 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 1 0 1 0 8 0 semapl 112 4 0 0 1 0 1 1 0 8 0 shmpl 112 4 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1665 0 139 96 0 96 96 0 8 0 ffsino 272 1668 0 142 102 0 102 102 0 8 0 nchpl 144 1942 0 243 64 0 64 64 0 8 0 uvmvnodes 80 1913 0 0 40 0 40 40 0 8 0 vnodes 216 1913 0 0 107 0 107 107 0 8 0 namei 1024 6671 0 6670 3 2 1 2 0 8 0 percpumem 16 55 0 10 1 0 1 1 0 8 0 kstatmem 264 42 0 20 2 0 2 2 0 8 0 scxspl 216 8248 0 8247 10 2 8 8 1 8 7 plimitpl 152 47 0 29 1 0 1 1 0 8 0 sigapl 424 597 0 551 8 2 6 7 0 8 0 futexpl 64 1141 0 1141 2 2 0 1 0 8 0 knotepl 120 361 0 0 11 0 11 11 0 8 0 kqueuepl 216 35 0 26 1 0 1 1 0 8 0 pipepl 320 142 0 115 3 0 3 3 0 8 0 fdescpl 496 578 0 554 6 1 5 5 0 8 1 filepl 152 2169 0 1945 13 2 11 13 0 8 1 lockfpl 104 18 0 16 1 0 1 1 0 8 0 lockfspl 48 10 0 8 1 0 1 1 0 8 0 sessionpl 144 30 0 21 1 0 1 1 0 8 0 pgrppl 48 80 0 63 1 0 1 1 0 8 0 ucredpl 104 146 0 133 1 0 1 1 0 8 0 zombiepl 144 555 0 551 1 0 1 1 0 8 0 processpl 1160 597 0 551 5 1 4 5 0 8 0 procpl 648 690 0 643 7 1 6 6 0 8 0 sosppl 168 2 0 2 1 1 0 1 0 8 0 sockpl 664 382 0 355 9 5 4 9 0 8 1 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 238 0 0 30 0 30 30 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 237 0 0 15 0 15 15 0 8 0 bufpl 280 5374 0 97 377 0 377 377 0 8 0 anonpl 24 168859 0 165785 52 2 50 51 0 185 23 amapchunkpl 152 12863 0 12526 32 3 29 32 0 158 11 amappl16 200 4120 0 4107 6 4 2 5 0 8 1 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 131 0 119 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 1368 0 1343 3 1 2 2 0 8 0 amappl11 160 60 0 46 1 0 1 1 0 8 0 amappl10 152 12 0 12 1 1 0 1 0 8 0 amappl9 144 134 0 134 1 1 0 1 0 8 0 amappl8 136 26 0 23 1 0 1 1 0 8 0 amappl7 128 121 0 109 1 0 1 1 0 8 0 amappl6 120 242 0 241 1 0 1 1 0 8 0 amappl5 112 165 0 154 1 0 1 1 0 8 0 amappl4 104 346 0 326 1 0 1 1 0 8 0 amappl3 96 2392 0 2313 4 0 4 4 0 8 0 amappl2 88 722 0 660 2 0 2 2 0 8 0 amappl1 80 8761 0 8203 15 2 13 14 0 8 0 amappl 88 3543 0 3420 5 0 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 128 253 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 6 0 1 1 0 1 1 0 8 0 uaddrrnd 24 578 0 553 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 578 0 553 1 0 1 1 0 8 0 vmmpekpl 168 6913 0 6866 3 0 3 3 0 8 0 vmmpepl 168 44458 0 42881 86 2 84 86 0 357 1 vmsppl 440 577 0 552 6 2 4 5 0 8 0 rwobjpl 56 19095 0 16320 41 0 41 41 0 8 0 pdppl 4096 1163 0 1104 107 40 67 85 0 8 8 pvpl 32 28434 0 0 230 0 230 230 0 265 0 pmappl 248 577 0 552 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 401 0 52 11 0 11 11 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(ffffffff830de40a) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd8076b1d660,41c0,fffffd807f7d3888,ffff80002a102488) at ffs_inode_alloc+0x96c sys/ufs/ffs/ffs_alloc.c:404 ufs_mkdir(ffff80002a1024f0) at ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 VOP_MKDIR(fffffd806edfdcd8,ffff80002a102650,ffff80002a102680,ffff80002a102580) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 domkdirat(ffff8000353907c0,ffffff9c,7337801bae20,1c0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3100 syscall(ffff80002a102800) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a102800) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7337801bade0, count: -8 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(ffffffff8357dae8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8357dae8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 uvn_detach(fffffd807e235570) at uvn_detach+0x28 sys/uvm/uvm_vnode.c:310 uvm_unmap_detach(ffff800029fe5610,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364 uvm_map_teardown(fffffd806c68ac20) at uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 uvmspace_free(fffffd806c68ac20) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd91c0) at reaper+0x246 sys/kern/kern_exit.c:481 end trace frame: 0x0, count: 6 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(ffffffff8357dae8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8357dae8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 uvn_detach(fffffd807e235570) at uvn_detach+0x28 sys/uvm/uvm_vnode.c:310 uvm_unmap_detach(ffff800029fe5610,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364 uvm_map_teardown(fffffd806c68ac20) at uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 uvmspace_free(fffffd806c68ac20) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd91c0) at reaper+0x246 sys/kern/kern_exit.c:481 end trace frame: 0x0, count: -9