panic: ufs_rename: lost dir entry Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *300912 14746 0 0x1000 0x4080000 0K syz-executor.0 423266 97577 0 0x14000 0x200 1 reaper db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8275e214) at panic+0x177 sys/kern/subr_prf.c:198 ufs_rename(ffff80002afe3958) at ufs_rename+0x1649 sys/ufs/ufs/ufs_vnops.c:909 VOP_RENAME(fffffd8076c51be0,fffffd8076c51880,ffff80002afe3b28,fffffd807efb45e8,fffffd805a56a6c8,ffff80002afe3a78) at VOP_RENAME+0xf0 sys/kern/vfs_vops.c:370 dorenameat(ffff800029fa58b0,3,200000c0,ffffffff,20000200) at dorenameat+0x29c sys/kern/vfs_syscalls.c:3033 syscall(ffff80002afe3cc0) at syscall+0x555 mi_syscall sys/sys/syscall_mi.h:113 [inline] syscall(ffff80002afe3cc0) at syscall+0x555 sys/arch/amd64/amd64/trap.c:626 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x21627c09b20, count: 8 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: ufs_rename: lost dir entry ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8275e214) at panic+0x177 sys/kern/subr_prf.c:198 ufs_rename(ffff80002afe3958) at ufs_rename+0x1649 sys/ufs/ufs/ufs_vnops.c:909 VOP_RENAME(fffffd8076c51be0,fffffd8076c51880,ffff80002afe3b28,fffffd807efb45e8,fffffd805a56a6c8,ffff80002afe3a78) at VOP_RENAME+0xf0 sys/kern/vfs_vops.c:370 dorenameat(ffff800029fa58b0,3,200000c0,ffffffff,20000200) at dorenameat+0x29c sys/kern/vfs_syscalls.c:3033 syscall(ffff80002afe3cc0) at syscall+0x555 mi_syscall sys/sys/syscall_mi.h:113 [inline] syscall(ffff80002afe3cc0) at syscall+0x555 sys/arch/amd64/amd64/trap.c:626 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x21627c09b20, count: -7 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002afe36e0 rbx 0xffffffff82bbbb8f cpu_info_full_primary+0x2b8f rdx 0 rcx 0 rax 0xffff800029fa58b0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x49b3610e0bacd688 r11 0xd7784e23b93c976e r12 0xffffffff82bbb990 cpu_info_full_primary+0x2990 r13 0 r14 0 r15 0x1 rip 0xffffffff81429348 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002afe36d0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.0) pid=300912 stat=onproc flags process=1000 proc=4080000 pri=17, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff8000212c8858,0xffff800029fa5b78 process=0xffff80002128b688 user=0xffff80002afde000, vmspace=0xfffffd8069a78c08 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *14746 300912 39192 0 7 0x4081000 syz-executor.0 14746 71168 39192 0 3 0x4003000 suspend syz-executor.0 13698 484980 93002 0 3 0x80 nanoslp syz-executor.4 13698 355277 93002 0 2 0x4000000 syz-executor.4 13698 206055 93002 0 3 0x4000080 fsleep syz-executor.4 58267 443178 78146 0 3 0x80 nanoslp syz-executor.2 58267 47629 78146 0 3 0x4000080 fsleep syz-executor.2 58267 110741 78146 0 3 0x4000080 fsleep syz-executor.2 94647 342739 0 0 3 0x14200 bored sosplice 14606 95341 44351 0 3 0x82 nanoslp syz-executor.7 29632 337213 44351 0 3 0x82 nanoslp syz-executor.6 22485 101920 44351 0 3 0x82 piperd syz-executor.5 93002 375564 44351 0 3 0x82 nanoslp syz-executor.4 77767 313626 44351 0 3 0x82 piperd syz-executor.3 78146 75423 44351 0 3 0x82 nanoslp syz-executor.2 67711 314081 44351 0 3 0x82 piperd syz-executor.1 39192 221467 44351 0 3 0x82 nanoslp syz-executor.0 44351 2089 53405 0 3 0x82 wait syz-fuzzer 44351 492881 53405 0 3 0x4000082 thrsleep syz-fuzzer 44351 120979 53405 0 3 0x4000082 thrsleep syz-fuzzer 44351 438993 53405 0 3 0x4000082 wait syz-fuzzer 44351 304224 53405 0 3 0x4000082 wait syz-fuzzer 44351 350022 53405 0 3 0x4000082 wait syz-fuzzer 44351 301522 53405 0 3 0x4000082 thrsleep syz-fuzzer 44351 216905 53405 0 3 0x4000082 thrsleep syz-fuzzer 44351 208974 53405 0 3 0x4000082 wait syz-fuzzer 44351 226613 53405 0 3 0x4000082 wait syz-fuzzer 44351 313104 53405 0 3 0x4000082 thrsleep syz-fuzzer 44351 158512 53405 0 3 0x4000082 wait syz-fuzzer 44351 310149 53405 0 3 0x4000082 wait syz-fuzzer 44351 204764 53405 0 3 0x4000082 thrsleep syz-fuzzer 44351 322010 53405 0 3 0x4000082 thrsleep syz-fuzzer 44351 318917 53405 0 3 0x4000082 kqread syz-fuzzer 53405 497669 47632 0 3 0x10008a sigsusp ksh 47632 146421 82382 0 3 0x9a kqread sshd 55228 83463 1 0 3 0x100083 ttyin getty 82382 102149 1 0 3 0x88 kqread sshd 39929 405746 4828 74 3 0x1100092 bpf pflogd 4828 387420 1 0 3 0x80 netio pflogd 48976 342557 77623 73 3 0x1100090 kqread syslogd 77623 33555 1 0 3 0x100082 netio syslogd 55962 510498 1 0 3 0x100080 kqread resolvd 2544 210881 80879 77 3 0x100092 kqread dhcpleased 24179 462488 80879 77 3 0x100092 kqread dhcpleased 80879 381770 1 0 3 0x80 kqread dhcpleased 38535 227948 0 0 3 0x14200 bored smr 40375 363590 0 0 2 0x14200 zerothread 27960 232420 0 0 3 0x14200 aiodoned aiodoned 49874 306593 0 0 3 0x14200 syncer update 78469 334834 0 0 3 0x14200 cleaner cleaner 97577 423266 0 0 7 0x14200 reaper 71211 324577 0 0 3 0x14200 pgdaemon pagedaemon 25000 412497 0 0 3 0x14200 bored viomb 58407 99956 0 0 3 0x40014200 acpi0 acpi0 85845 378261 0 0 3 0x40014200 idle1 56422 150408 0 0 3 0x14200 bored softnet 63464 261718 0 0 3 0x14200 bored softnet 18318 345947 0 0 3 0x14200 bored softnet 96883 475415 0 0 3 0x14200 bored softnet 12989 385549 0 0 3 0x14200 bored systqmp 89204 278450 0 0 3 0x14200 bored systq 90952 5236 0 0 3 0x40014200 bored softclock 33484 300203 0 0 3 0x40014200 idle0 1 480098 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 1: exclusive sched_lock &sched_lock r = 1 (0xffffffff82dc47d8) #0 witness_lock+0x44d #1 wakeup_n+0x37 #2 uvm_pmr_freepageq+0x292 sys/uvm/uvm_pmemrange.c:1352 #3 amap_wipeout+0x1ff sys/uvm/uvm_amap.c:523 #4 uvm_unmap_detach+0x7d sys/uvm/uvm_map.c:1366 #5 uvm_map_teardown+0x28d sys/uvm/uvm_map.c:2598 #6 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3516 #7 reaper+0x19a sys/kern/kern_exit.c:448 #8 proc_trampoline+0x1c exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff82dc6550) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 uvm_pmr_freepageq+0xcc sys/uvm/uvm_pmemrange.c:1333 #4 amap_wipeout+0x1ff sys/uvm/uvm_amap.c:523 #5 uvm_unmap_detach+0x7d sys/uvm/uvm_map.c:1366 #6 uvm_map_teardown+0x28d sys/uvm/uvm_map.c:2598 #7 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3516 #8 reaper+0x19a sys/kern/kern_exit.c:448 #9 proc_trampoline+0x1c Process 14746 (syz-executor.0) thread 0xffff800029fa58b0 (300912) exclusive rrwlock inode r = 0 (0xfffffd8075f30e68) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x1fc sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1324 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #10 vfs_relookup+0xb0 sys/kern/vfs_lookup.c:787 #11 ufs_rename+0x1446 sys/ufs/ufs/ufs_vnops.c:1043 #12 VOP_RENAME+0xf0 sys/kern/vfs_vops.c:370 #13 dorenameat+0x29c sys/kern/vfs_syscalls.c:3033 #14 syscall+0x555 mi_syscall sys/sys/syscall_mi.h:113 [inline] #14 syscall+0x555 sys/arch/amd64/amd64/trap.c:626 #15 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e58d708) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_relookup+0x53 sys/kern/vfs_lookup.c:778 #6 ufs_rename+0x1446 sys/ufs/ufs/ufs_vnops.c:1043 #7 VOP_RENAME+0xf0 sys/kern/vfs_vops.c:370 #8 dorenameat+0x29c sys/kern/vfs_syscalls.c:3033 #9 syscall+0x555 mi_syscall sys/sys/syscall_mi.h:113 [inline] #9 syscall+0x555 sys/arch/amd64/amd64/trap.c:626 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d8a618) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3bb sys/kern/sched_bsd.c:405 #3 sleep_finish+0x180 sys/kern/kern_synch.c:417 #4 tsleep+0x12c sys/kern/kern_synch.c:155 #5 biowait+0x91 sys/kern/vfs_bio.c:1268 #6 bwrite+0x21b sys/kern/vfs_bio.c:769 #7 ffs_update+0x27d sys/ufs/ffs/ffs_inode.c:113 #8 ffs_truncate+0xcec #9 ufs_rename+0x1360 sys/ufs/ufs/ufs_vnops.c:1025 #10 VOP_RENAME+0xf0 sys/kern/vfs_vops.c:370 #11 dorenameat+0x29c sys/kern/vfs_syscalls.c:3033 #12 syscall+0x555 mi_syscall sys/sys/syscall_mi.h:113 [inline] #12 syscall+0x555 sys/arch/amd64/amd64/trap.c:626 #13 Xsyscall+0x128 Process 97577 (reaper) thread 0xffff8000211bcda0 (423266) exclusive kernel: protection fault trap, code=0 Faulted in DDB; continuing... ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10203 6476K 6811K 78643K 12151 0 pcb 13 12K 13K 78643K 162 0 rtable 201 13K 14K 78643K 382 0 ifaddr 73 24K 25K 78643K 88 0 counters 58 35K 35K 78643K 60 0 ioctlops 0 0K 4K 78643K 1494 0 iov 0 0K 16K 78643K 90 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1373 86K 86K 78643K 1813 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 14 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 123 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 13 45K 85K 78643K 551 0 sigio 0 0K 0K 78643K 5 0 proc 70 91K 115K 78643K 540 0 subproc 104 6K 6K 78643K 104 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 26 0 in_multi 82 5K 6K 78643K 121 0 ether_multi 1 0K 0K 78643K 8 0 mrt 1 0K 0K 78643K 10 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 382 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 300 81K 84K 78643K 5732 0 UVM aobj 20 2K 2K 78643K 20 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 6 0 NDP 12 0K 2K 78643K 30 0 temp 133 5778K 5846K 78643K 6515 0 kqueue 12 18K 22K 78643K 41 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 49 0 46 1 0 1 1 0 8 0 rtentry 112 118 0 26 4 0 4 4 0 8 0 unpcb 144 855 0 840 14 8 6 6 0 8 5 syncache 296 4 0 4 1 1 0 1 0 8 0 tcpqe 32 160 0 160 2 2 0 1 0 8 0 tcpcb 776 369 0 365 15 7 8 8 0 8 7 arp 120 18 0 2 1 0 1 1 0 8 0 inpcb 368 727 0 718 20 11 9 13 0 8 7 nd6 48 25 0 7 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 pffrag 232 4 0 4 2 1 1 1 0 482 1 pffrnode 88 4 0 4 2 1 1 1 0 8 1 pffrent 40 8 0 8 2 1 1 1 0 8 1 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 1280 10 0 0 1 0 1 1 0 8 0 pfstitem 24 42 0 21 1 0 1 1 0 8 0 pfstkey 128 42 0 21 2 0 2 2 0 8 0 pfstate 384 42 0 21 4 0 4 4 0 8 1 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 3 0 3 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 494 0 126 29 1 28 29 0 8 2 art_table 32 495 0 126 4 0 4 4 0 8 0 art_node 16 117 0 33 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semapl 112 121 0 111 1 0 1 1 0 8 0 shmpl 112 17 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2228 0 784 91 0 91 91 0 8 0 ffsino 272 2228 0 784 97 0 97 97 0 8 0 nchpl 144 3052 0 1387 63 0 63 63 0 8 0 uvmvnodes 80 2622 0 0 54 0 54 54 0 8 0 vnodes 216 2622 0 0 146 0 146 146 0 8 0 namei 1024 11539 0 11536 3 2 1 2 0 8 0 percpumem 16 43 0 1 1 0 1 1 0 8 0 kstatmem 264 26 0 2 2 0 2 2 0 8 0 scxspl 216 9415 0 9415 10 8 2 8 0 8 2 plimitpl 152 162 0 146 1 0 1 1 0 8 0 sigapl 424 861 0 815 7 1 6 6 0 8 0 futexpl 64 4707 0 4704 1 0 1 1 0 8 0 knotepl 120 252 0 0 7 0 7 7 0 8 0 kqueuepl 216 158 0 150 5 0 5 5 0 8 4 pipepl 320 309 0 280 12 4 8 8 0 8 5 fdescpl 496 843 0 817 5 1 4 5 0 8 0 filepl 152 6443 0 6193 29 11 18 20 0 8 8 lockfpl 104 168 0 166 1 0 1 1 0 8 0 lockfspl 48 51 0 49 1 0 1 1 0 8 0 sessionpl 144 24 0 7 1 0 1 1 0 8 0 pgrppl 48 24 0 7 1 0 1 1 0 8 0 ucredpl 104 943 0 931 1 0 1 1 0 8 0 zombiepl 144 818 0 815 1 0 1 1 0 8 0 processpl 1072 861 0 815 4 0 4 4 0 8 0 procpl 696 1754 0 1685 8 0 8 8 0 8 0 srpgc 96 2 0 2 1 0 1 1 0 8 1 sosppl 168 4 0 3 2 1 1 1 0 8 0 sockpl 488 1631 0 1604 51 28 23 25 0 8 18 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 7 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 16 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 505 0 0 63 0 63 63 0 8 0 mtagpl 96 42 0 0 2 0 2 2 0 8 0 mbufpl 256 548 0 0 34 0 34 34 0 8 0 bufpl 288 4566 0 153 316 0 316 316 0 8 0 anonpl 24 223449 0 205037 148 6 142 142 0 186 12 amapchunkpl 152 16069 0 15299 36 1 35 35 0 158 2 amappl16 200 3931 0 3319 47 5 42 45 0 8 9 amappl15 192 28 0 26 1 0 1 1 0 8 0 amappl14 184 162 0 146 2 0 2 2 0 8 0 amappl13 176 6 0 5 1 0 1 1 0 8 0 amappl12 168 417 0 415 1 0 1 1 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 31 0 22 1 0 1 1 0 8 0 amappl9 144 961 0 958 1 0 1 1 0 8 0 amappl8 136 178 0 131 2 0 2 2 0 8 0 amappl7 128 152 0 128 2 0 2 2 0 8 0 amappl6 120 183 0 171 2 1 1 2 0 8 0 amappl5 112 125 0 116 1 0 1 1 0 8 0 amappl4 104 501 0 469 2 1 1 2 0 8 0 amappl3 96 1966 0 1911 2 0 2 2 0 8 0 amappl2 88 1223 0 1148 4 2 2 4 0 8 0 amappl1 80 21711 0 20960 28 10 18 28 0 8 0 amappl 88 5195 0 5009 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 19 0 0 1 0 1 1 0 8 0 uaddrrnd 24 843 0 817 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 843 0 817 1 0 1 1 0 8 0 vmmpekpl 168 12587 0 12526 3 0 3 3 0 8 0 vmmpepl 168 87381 0 84663 151 6 145 145 0 357 9 vmsppl 440 842 0 816 5 1 4 4 0 8 0 rwobjpl 56 28354 0 23916 66 1 65 65 0 8 1 pdppl 4096 1693 0 1632 137 68 69 79 0 8 8 pvpl 32 502473 0 478233 367 50 317 366 0 265 102 pmappl 248 842 0 816 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 803 0 84 21 0 21 21 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8275e214) at panic+0x177 sys/kern/subr_prf.c:198 ufs_rename(ffff80002afe3958) at ufs_rename+0x1649 sys/ufs/ufs/ufs_vnops.c:909 VOP_RENAME(fffffd8076c51be0,fffffd8076c51880,ffff80002afe3b28,fffffd807efb45e8,fffffd805a56a6c8,ffff80002afe3a78) at VOP_RENAME+0xf0 sys/kern/vfs_vops.c:370 dorenameat(ffff800029fa58b0,3,200000c0,ffffffff,20000200) at dorenameat+0x29c sys/kern/vfs_syscalls.c:3033 syscall(ffff80002afe3cc0) at syscall+0x555 mi_syscall sys/sys/syscall_mi.h:113 [inline] syscall(ffff80002afe3cc0) at syscall+0x555 sys/arch/amd64/amd64/trap.c:626 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x21627c09b20, count: -7 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020d68ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82d8a410) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d8a410) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff8000211c8fc0,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1382 uvm_map_teardown(fffffd8069a78898) at uvm_map_teardown+0x28d sys/uvm/uvm_map.c:2598 uvmspace_free(fffffd8069a78898) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3516 reaper(ffff8000211bcda0) at reaper+0x19a sys/kern/kern_exit.c:448 end trace frame: 0x0, count: 7 ddb{1}> trace x86_ipi_db(ffff800020d68ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82d8a410) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d8a410) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff8000211c8fc0,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1382 uvm_map_teardown(fffffd8069a78898) at uvm_map_teardown+0x28d sys/uvm/uvm_map.c:2598 uvmspace_free(fffffd8069a78898) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3516 reaper(ffff8000211bcda0) at reaper+0x19a sys/kern/kern_exit.c:448 end trace frame: 0x0, count: -8