panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 72079 4246 0 0 0x4000000 0K syz-executor 480959 19115 0 0x2 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830bcb29) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bffb1b8,20000000,20011000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806bffb1b8,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 kern_sysctl(ffff8000371e0d74,5,20000100,ffff8000371e0da8,0,37,b27fe4c87e8ec19a) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff8000371e0d74,5,20000100,ffff8000371e0da8,0,37,b27fe4c87e8ec19a) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:507 sys_sysctl(ffff80002a0556f0,ffff8000371e0ee0,ffff8000371e0e30) at sys_sysctl+0x422 syscall(ffff8000371e0ee0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371e0ee0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfe1d7bf8560, 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: uvm_fault_unwire_locked: address not in map ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830bcb29) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bffb1b8,20000000,20011000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806bffb1b8,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 kern_sysctl(ffff8000371e0d74,5,20000100,ffff8000371e0da8,0,37,b27fe4c87e8ec19a) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff8000371e0d74,5,20000100,ffff8000371e0da8,0,37,b27fe4c87e8ec19a) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:507 sys_sysctl(ffff80002a0556f0,ffff8000371e0ee0,ffff8000371e0e30) at sys_sysctl+0x422 syscall(ffff8000371e0ee0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371e0ee0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfe1d7bf8560, count: -8 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff8000371e0a20 rbx 0xffffffff834f9dbf cpu_info_full_primary+0x2dbf rdx 0 rcx 0xffff80002a0556f0 rax 0xffffffff834f8ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xd97cb27dc9356504 r11 0x7962beb96eafcc34 r12 0xffffffff834f9bc0 cpu_info_full_primary+0x2bc0 r13 0 r14 0 r15 0x1 rip 0xffffffff81ceac65 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000371e0a10 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=72079 pid=4246 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a054538,0xffff80002a054038 process=0xffff8000ffff3b08 user=0xffff8000371db000, vmspace=0xfffffd806bffb1b8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 58697 123731 89562 0 2 0 syz-executor 33851 188273 59031 0 2 0 syz-executor 33851 279573 59031 0 3 0x4000080 fsleep syz-executor 4246 368410 60231 0 2 0 syz-executor 4246 56247 60231 0 3 0x4000080 fsleep syz-executor * 4246 72079 60231 0 7 0x4000000 syz-executor 4246 204966 60231 0 2 0x4000000 syz-executor 45565 248033 1407 0 2 0 syz-executor 45565 6963 1407 0 3 0x4000080 fsleep syz-executor 29557 268092 63736 0 2 0 syz-executor 29557 404961 63736 0 3 0x4000080 fsleep syz-executor 85146 301410 0 0 3 0x14200 bored sosplice 1415 255807 14457 0 3 0x82 nanoslp syz-executor 60231 462032 14457 0 3 0x82 nanoslp syz-executor 1407 501927 14457 0 3 0x82 nanoslp syz-executor 59031 284360 14457 0 3 0x82 nanoslp syz-executor 89562 132833 14457 0 3 0x82 nanoslp syz-executor 63736 272699 14457 0 3 0x82 nanoslp syz-executor 19115 480959 14457 0 7 0x2 syz-executor 68478 149076 14457 0 3 0x82 nanoslp syz-executor 14457 283406 18516 0 3 0x82 kqread syz-executor 18516 209262 20016 0 3 0x10008a sigsusp ksh 20016 475651 6683 0 3 0x98 kqread sshd-session 6683 427317 36756 0 3 0x92 kqread sshd-session 4926 288815 1 0 3 0x100083 ttyin getty 36756 50857 1 0 3 0x88 kqread sshd 30486 244525 71743 74 3 0x1100092 bpf pflogd 71743 385451 1 0 3 0x80 sbwait pflogd 25729 329288 1381 73 3 0x1100090 kqread syslogd 1381 167007 1 0 3 0x100082 sbwait syslogd 8112 130579 1 0 3 0x100080 kqread resolvd 15017 519142 50537 77 3 0x100092 kqread dhcpleased 88276 409139 50537 77 3 0x100092 kqread dhcpleased 50537 403695 1 0 3 0x80 kqread dhcpleased 34532 159370 0 0 3 0x14200 bored smr 41938 109820 0 0 2 0x14200 zerothread 26326 270796 0 0 3 0x14200 aiodoned aiodoned 45949 375508 0 0 3 0x14200 syncer update 96040 456913 0 0 3 0x14200 cleaner cleaner 73949 484792 0 0 3 0x14200 reaper reaper 18910 159718 0 0 3 0x14200 pgdaemon pagedaemon 99483 434226 0 0 3 0x14200 bored viomb 10471 118674 0 0 3 0x40014200 acpi0 acpi0 61325 375744 0 0 3 0x40014200 idle1 32284 377147 0 0 3 0x14200 bored softnet3 95634 383706 0 0 3 0x14200 bored softnet2 58501 284173 0 0 3 0x14200 bored softnet1 7337 233089 0 0 3 0x14200 bored softnet0 33615 178452 0 0 3 0x14200 bored systqmp 72205 354270 0 0 3 0x14200 bored systq 79357 336909 0 0 3 0x14200 tmoslp softclockmp 50221 295385 0 0 3 0x40014200 tmoslp softclock 25360 514856 0 0 3 0x40014200 idle0 1 176175 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 4246 (syz-executor) thread 0xffff80002a0556f0 (72079) shared rwlock vmmaplk r = 0 (0xfffffd806bffb2a8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvm_fault_unwire+0x3e sys/uvm/uvm_fault.c:1622 #2 kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] #2 kern_sysctl+0x500 sys/kern/kern_sysctl.c:507 #3 sys_sysctl+0x422 #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835160e0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 __mp_acquire_count+0x58 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 sleep_finish+0x21e sys/kern/kern_synch.c:416 #4 rw_enter+0x348 sys/kern/kern_rwlock.c:285 #5 vm_map_lock_ln+0x143 sys/uvm/uvm_map.c:5252 #6 uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1779 #7 uvm_fault_check+0x83e uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] #7 uvm_fault_check+0x83e sys/uvm/uvm_fault.c:710 #8 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #9 uvm_fault_wire+0x73 sys/uvm/uvm_fault.c:1602 #10 sysctl_vslock+0x109 sys/kern/kern_sysctl.c:191 #11 kern_sysctl+0x1ad sys/kern/kern_sysctl.c:503 #12 sys_sysctl+0x422 #13 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #13 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff8346e280) #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 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:181 #3 kern_sysctl+0x1ad sys/kern/kern_sysctl.c:503 #4 sys_sysctl+0x422 #5 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #5 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 Process 19115 (syz-executor) thread 0xffff80002a0502a0 (480959) exclusive rrwlock inode r = 0 (0xfffffd806bd58c50) #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 vget+0x2bd sys/kern/vfs_subr.c:673 #6 ufs_ihashget+0x192 sys/ufs/ufs/ufs_ihash.c:98 #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:178 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806cd7f4e8) #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 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [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 10190 11114K 11381K 166960K 11464 0 pcb 18 13K 13K 166960K 64 0 rtable 232 6K 6K 166960K 369 0 pf 34 17K 19K 166960K 63 0 ifaddr 43 7K 7K 166960K 48 0 ifgroup 55 2K 2K 166960K 59 0 sysctl 1 0K 0K 166960K 1 0 counters 64 36K 36K 166960K 68 0 ioctlops 0 0K 4K 166960K 1502 0 iov 0 0K 12K 166960K 7 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1368 86K 86K 166960K 1501 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 6 0K 0K 166960K 7 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 15 53K 93K 166960K 300 0 sigio 0 0K 0K 166960K 9 0 proc 72 91K 140K 166960K 556 0 subproc 104 6K 6K 166960K 104 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 24 0 in_multi 95 7K 7K 166960K 105 0 ether_multi 1 0K 0K 166960K 3 0 mrt 0 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 385 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 212 72K 77K 166960K 4442 0 UVM aobj 22 2K 2K 166960K 22 0 pinsyscall 40 80K 104K 166960K 1377 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 8 0 NDP 12 0K 2K 166960K 30 0 temp 44 6816K 6882K 166960K 13211 0 kqueue 13 20K 28K 166960K 69 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 47 0 44 1 0 1 1 0 8 0 rtentry 112 119 0 10 4 0 4 4 0 8 0 unpcb 144 108 0 91 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 808 120 0 115 8 0 8 8 0 8 7 arp 120 20 0 1 1 0 1 1 0 8 0 inpcb 336 364 0 355 7 0 7 7 0 8 6 nd6 136 26 0 3 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 2 0 2 1 0 1 1 0 8 1 pffrag 232 3 0 2 1 0 1 1 0 482 0 pffrnode 88 3 0 2 1 0 1 1 0 8 0 pffrent 40 9 0 8 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 pfstitem 24 36 0 0 1 0 1 1 0 8 0 pfstkey 128 36 0 0 2 0 2 2 0 8 0 pfstate 376 36 0 0 4 0 4 4 0 8 0 pfrule 1344 21 0 15 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 464 0 24 29 0 29 29 0 8 0 art_table 32 465 0 24 4 0 4 4 0 8 0 art_node 16 118 0 19 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 2 1 0 1 1 0 8 0 semapl 112 5 0 1 1 0 1 1 0 8 0 shmpl 112 19 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 1839 0 332 95 0 95 95 0 8 0 ffsino 272 1839 0 332 101 0 101 101 0 8 0 nchpl 144 2290 0 604 63 0 63 63 0 8 0 uvmvnodes 80 2031 0 0 42 0 42 42 0 8 0 vnodes 216 2031 0 0 113 0 113 113 0 8 0 namei 1024 6903 0 6903 1 0 1 1 0 8 1 percpumem 16 48 0 2 1 0 1 1 0 8 0 kstatmem 264 28 0 4 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 6924 0 6924 10 2 8 8 1 8 8 plimitpl 152 43 0 26 1 0 1 1 0 8 0 sigapl 424 601 0 551 7 0 7 7 0 8 1 futexpl 64 2714 0 2710 1 0 1 1 0 8 0 knotepl 120 316 0 0 10 0 10 10 0 8 0 kqueuepl 216 75 0 65 1 0 1 1 0 8 0 pipepl 320 123 0 95 3 0 3 3 0 8 0 fdescpl 496 582 0 553 5 0 5 5 0 8 0 filepl 152 2476 0 2230 13 0 13 13 0 8 3 lockfpl 104 96 0 93 1 0 1 1 0 8 0 lockfspl 48 41 0 38 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 35 0 18 1 0 1 1 0 8 0 ucredpl 104 246 0 233 1 0 1 1 0 8 0 zombiepl 144 553 0 551 1 0 1 1 0 8 0 processpl 1160 601 0 551 5 0 5 5 0 8 1 procpl 648 888 0 832 6 0 6 6 0 8 0 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 664 525 0 496 9 0 9 9 0 8 6 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 134 0 0 17 0 17 17 0 8 0 mcl2k 2048 23 0 0 3 0 3 3 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 173 0 0 11 0 11 11 0 8 0 bufpl 280 2669 0 97 184 0 184 184 0 8 0 anonpl 24 158524 0 155342 37 3 34 34 0 185 8 amapchunkpl 152 14332 0 13916 26 0 26 26 0 158 6 amappl16 200 4009 0 3987 6 4 2 5 0 8 0 amappl15 192 22 0 22 1 1 0 1 0 8 0 amappl14 184 116 0 104 1 0 1 1 0 8 0 amappl13 176 11 0 11 1 1 0 1 0 8 0 amappl12 168 1226 0 1197 3 1 2 2 0 8 0 amappl11 160 54 0 40 1 0 1 1 0 8 0 amappl10 152 12 0 11 1 0 1 1 0 8 0 amappl9 144 138 0 138 1 1 0 1 0 8 0 amappl8 136 27 0 25 1 0 1 1 0 8 0 amappl7 128 117 0 105 1 0 1 1 0 8 0 amappl6 120 166 0 163 1 0 1 1 0 8 0 amappl5 112 146 0 134 1 0 1 1 0 8 0 amappl4 104 315 0 296 1 0 1 1 0 8 0 amappl3 96 2606 0 2527 3 0 3 3 0 8 0 amappl2 88 862 0 780 3 0 3 3 0 8 0 amappl1 80 8290 0 7741 15 1 14 14 0 8 0 amappl 88 4045 0 3897 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 21 0 0 1 0 1 1 0 8 0 uaddrrnd 24 582 0 553 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 582 0 553 1 0 1 1 0 8 0 vmmpekpl 168 6214 0 6178 2 0 2 2 0 8 0 vmmpepl 168 44067 0 42345 88 0 88 88 0 357 4 vmsppl 440 581 0 553 6 1 5 5 0 8 1 rwobjpl 56 18564 0 15624 43 1 42 42 0 8 0 pdppl 4096 1171 0 1106 107 36 71 85 0 8 6 pvpl 32 12174 0 0 100 1 99 99 0 265 0 pmappl 248 581 0 553 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 391 0 38 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(ffffffff830bcb29) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806bffb1b8,20000000,20011000) at uvm_fault_unwire_locked+0x487 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd806bffb1b8,20000000,20011000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1623 kern_sysctl(ffff8000371e0d74,5,20000100,ffff8000371e0da8,0,37,b27fe4c87e8ec19a) at kern_sysctl+0x500 sysctl_vsunlock sys/kern/kern_sysctl.c:209 [inline] kern_sysctl(ffff8000371e0d74,5,20000100,ffff8000371e0da8,0,37,b27fe4c87e8ec19a) at kern_sysctl+0x500 sys/kern/kern_sysctl.c:507 sys_sysctl(ffff80002a0556f0,ffff8000371e0ee0,ffff8000371e0e30) at sys_sysctl+0x422 syscall(ffff8000371e0ee0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371e0ee0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfe1d7bf8560, 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(ffffffff83515ed8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83515ed8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 __mp_acquire_count(ffffffff83515ed8,1) at __mp_acquire_count+0x58 mi_switch() at mi_switch+0x4b7 sys/kern/sched_bsd.c:441 sleep_finish(0,1) at sleep_finish+0x21e sys/kern/kern_synch.c:416 biowait(fffffd806f06c270) at biowait+0xc1 sys/kern/vfs_bio.c:1254 bwrite(fffffd806f06c270) at bwrite+0x2e2 sys/kern/vfs_bio.c:766 ufs_dirremove(fffffd806ce597d0,fffffd806bd58bb8,800c,1) at ufs_dirremove+0x2a9 sys/ufs/ufs/ufs_lookup.c:919 ufs_rmdir(ffff80002a0bc668) at ufs_rmdir+0x287 sys/ufs/ufs/ufs_vnops.c:1248 VOP_RMDIR(fffffd806ce597d0,fffffd806746a548,ffff80002a0bc748) at VOP_RMDIR+0x19a sys/kern/vfs_vops.c:413 dounlinkat(ffff80002a0502a0,ffffff9c,76f853a91c00,8) at dounlinkat+0x2e0 sys/kern/vfs_syscalls.c:1885 syscall(ffff80002a0bc8c0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80002a0bc8c0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 end trace frame: 0xffff80002a0bc940, count: 0 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(ffffffff83515ed8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83515ed8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 __mp_acquire_count(ffffffff83515ed8,1) at __mp_acquire_count+0x58 mi_switch() at mi_switch+0x4b7 sys/kern/sched_bsd.c:441 sleep_finish(0,1) at sleep_finish+0x21e sys/kern/kern_synch.c:416 biowait(fffffd806f06c270) at biowait+0xc1 sys/kern/vfs_bio.c:1254 bwrite(fffffd806f06c270) at bwrite+0x2e2 sys/kern/vfs_bio.c:766 ufs_dirremove(fffffd806ce597d0,fffffd806bd58bb8,800c,1) at ufs_dirremove+0x2a9 sys/ufs/ufs/ufs_lookup.c:919 ufs_rmdir(ffff80002a0bc668) at ufs_rmdir+0x287 sys/ufs/ufs/ufs_vnops.c:1248 VOP_RMDIR(fffffd806ce597d0,fffffd806746a548,ffff80002a0bc748) at VOP_RMDIR+0x19a sys/kern/vfs_vops.c:413 dounlinkat(ffff80002a0502a0,ffffff9c,76f853a91c00,8) at dounlinkat+0x2e0 sys/kern/vfs_syscalls.c:1885 syscall(ffff80002a0bc8c0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80002a0bc8c0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76f853a91bf0, count: -15