panic: mutex 0xfffffd806c462670 not held in mtx_leave Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 172174 2455 0 0 0x4000000 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830777cb) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_leave(fffffd806c462670) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd806c462588,fffffd806c462670,4,ffffffff832017c0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd806c462558,fffffd806be53b58,0) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvm_mapanon(fffffd806c462558,ffff8000365b78b0,21000,1000,2080713) at uvm_mapanon+0x292 uvm_mmapanon(fffffd806c462558,ffff8000365b78b0,21000,3,7,5002,ae80714a3d2efeff,5002) at uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1019 sys_mmap(ffff8000ffff6020,ffff8000365b7a20,ffff8000365b7970) at sys_mmap+0xa96 sys/uvm/uvm_mmap.c:421 syscall(ffff8000365b7a20) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000365b7a20) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71d3e5ceeec0, count: 5 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: mutex 0xfffffd806c462670 not held in mtx_leave ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830777cb) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_leave(fffffd806c462670) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd806c462588,fffffd806c462670,4,ffffffff832017c0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd806c462558,fffffd806be53b58,0) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvm_mapanon(fffffd806c462558,ffff8000365b78b0,21000,1000,2080713) at uvm_mapanon+0x292 uvm_mmapanon(fffffd806c462558,ffff8000365b78b0,21000,3,7,5002,ae80714a3d2efeff,5002) at uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1019 sys_mmap(ffff8000ffff6020,ffff8000365b7a20,ffff8000365b7970) at sys_mmap+0xa96 sys/uvm/uvm_mmap.c:421 syscall(ffff8000365b7a20) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000365b7a20) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71d3e5ceeec0, count: -10 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff8000365b7490 rbx 0xffff800029b7cdbf rdx 0 rcx 0xffff8000ffff6020 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x8455316805eb9880 r11 0x905fce976e829b0f r12 0xffff800029b7cbc0 r13 0 r14 0 r15 0x1 rip 0xffffffff813e7875 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000365b7480 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=285852 pid=2455 tcnt=2 stat=sleep flags process=0 proc=20 runpri=83, usrpri=83, slppri=4, nice=20 wchan=0xfffffd806c462588, wmesg=vmmapbsy, ps_single=0x0 scnt=0 ecnt=0 forw=0x0, list=0xffff8000ffff7970,0xffff8000ffffc530 process=0xffff8000ffffa450 user=0xffff8000365b2000, vmspace=0xfffffd806c462558 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 68213 390826 19202 0 3 0x100002 inode sh * 2455 285852 92743 0 3 0x20 vmmapbsy syz-executor 2455 172174 92743 0 7 0x4000000 syz-executor 77528 265409 21493 0 2 0x40 syz-executor 86865 189786 19905 0 2 0 syz-executor 68476 398918 97593 0 2 0 syz-executor 46531 515478 82749 0 2 0 syz-executor 46531 442 82749 0 2 0x4000000 syz-executor 68954 474784 7344 0 2 0 syz-executor 68954 114848 7344 0 2 0x4000000 syz-executor 86912 209039 74490 0 3 0x2 biowait syz-executor 21493 299927 74490 0 3 0x82 ppwait syz-executor 19202 357444 74490 0 3 0x82 wait syz-executor 92743 481550 74490 0 2 0x482 syz-executor 19905 129416 74490 0 2 0x482 syz-executor 97593 432779 74490 0 2 0x2 syz-executor 82749 312331 74490 0 2 0x482 syz-executor 7344 272345 74490 0 2 0x482 syz-executor 8392 9173 0 0 3 0x14200 acct acct 18271 130755 0 0 3 0x14280 nfsidl nfsio 66211 293031 0 0 3 0x14280 nfsidl nfsio 30489 415083 0 0 3 0x14280 nfsidl nfsio 83499 312043 0 0 3 0x14280 nfsidl nfsio 41493 142511 0 0 3 0x14280 nfsidl nfsio 23273 234217 0 0 3 0x14280 nfsidl nfsio 66541 8039 0 0 3 0x14280 nfsidl nfsio 73514 509765 0 0 3 0x14280 nfsidl nfsio 14594 77871 0 0 3 0x14280 nfsidl nfsio 63991 407264 0 0 3 0x14280 nfsidl nfsio 21317 458187 0 0 3 0x14280 nfsidl nfsio 24655 466753 0 0 3 0x14280 nfsidl nfsio 59893 398789 0 0 3 0x14280 nfsidl nfsio 42560 88708 0 0 3 0x14280 nfsidl nfsio 26895 23995 0 0 3 0x14280 nfsidl nfsio 26347 278431 0 0 3 0x14280 nfsidl nfsio 65884 506970 0 0 3 0x14280 nfsidl nfsio 93190 418034 0 0 3 0x14280 nfsidl nfsio 87514 153931 0 0 3 0x14280 nfsidl nfsio 35076 277404 0 0 3 0x14280 nfsidl nfsio 8428 128617 0 0 3 0x14200 bored sosplice 74490 139856 8220 0 3 0x82 kqread syz-executor 8220 237906 69561 0 3 0x10008a sigsusp ksh 69561 168279 45447 0 3 0x98 kqread sshd-session 45447 91536 97168 0 3 0x92 kqread sshd-session 86191 346895 1 0 3 0x100083 ttyin getty 97168 134196 1 0 3 0x88 kqread sshd 25601 259658 39398 74 3 0x1100092 bpf pflogd 39398 72382 1 0 3 0x80 sbwait pflogd 69276 91025 22579 73 2 0x1100010 syslogd 22579 252217 1 0 3 0x100082 sbwait syslogd 58492 473019 1 0 3 0x100080 kqread resolvd 11389 78365 50093 77 3 0x100092 kqread dhcpleased 26019 136076 50093 77 3 0x100092 kqread dhcpleased 50093 109597 1 0 3 0x80 kqread dhcpleased 4607 172690 0 0 3 0x14200 bored smr 81401 308433 0 0 2 0x14200 zerothread 1182 362731 0 0 3 0x14200 aiodoned aiodoned 80659 60520 0 0 3 0x14200 syncer update 11190 154481 0 0 3 0x14200 cleaner cleaner 74873 257850 0 0 3 0x14200 reaper reaper 18968 371798 0 0 3 0x14200 pgdaemon pagedaemon 55074 463922 0 0 3 0x14200 bored viomb 854 521828 0 0 3 0x40014200 acpi0 acpi0 57922 3738 0 0 3 0x40014200 idle1 84835 455701 0 0 3 0x14200 bored softnet3 64725 51334 0 0 3 0x14200 bored softnet2 82538 388382 0 0 3 0x14200 bored softnet1 44675 69472 0 0 3 0x14200 bored softnet0 76102 109615 0 0 3 0x14200 bored systqmp 43293 428351 0 0 3 0x14200 bored systq 37161 304737 0 0 3 0x14200 tmoslp softclockmp 82561 511589 0 0 3 0x40014200 tmoslp softclock 57075 148637 0 0 3 0x40014200 idle0 1 482262 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &map->flags_lock r = 0 (0xfffffd806c4626b0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 vm_map_lock_ln+0x153 sys/uvm/uvm_map.c:5258 #4 uvm_mapanon+0x292 #5 uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1019 #6 sys_mmap+0xa96 sys/uvm/uvm_mmap.c:421 #7 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #7 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #8 Xsyscall+0x128 Process 2455 (syz-executor) thread 0xffff8000ffffd6d8 (172174) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83592d78) #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+0x142 sys/uvm/uvm_map.c:5257 #6 uvm_map_clean+0x11b sys/uvm/uvm_map.c:4450 #7 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #7 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #8 Xsyscall+0x128 Process 86912 (syz-executor) thread 0xffff800034b996f0 (209039) exclusive rrwlock inode r = 0 (0xfffffd806bcb1d58) #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 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:169 #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:3099 #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 (0xfffffd80783b35e8) #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084 #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 Process 69276 (syslogd) thread 0xffff8000ffffdbe8 (91025) exclusive rrwlock inode r = 0 (0xfffffd806e4292c0) #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 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2926 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10196 11129K 11565K 166960K 12020 0 pcb 17 15K 17K 166960K 205 0 rtable 147 4K 7K 166960K 626 0 pf 38 18K 26K 166960K 84 0 ifaddr 35 5K 7K 166960K 88 0 ifgroup 60 2K 3K 166960K 123 0 counters 66 36K 36K 166960K 96 0 ioctlops 0 0K 4K 166960K 1598 0 iov 0 0K 16K 166960K 105 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1394 88K 89K 166960K 1928 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 17 3K 3K 166960K 31 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 17 58K 89K 166960K 766 0 sigio 0 0K 0K 166960K 13 0 proc 73 91K 128K 166960K 773 0 subproc 91 5K 6K 166960K 221 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 80 0 in_multi 65 4K 7K 166960K 204 0 ether_multi 1 0K 0K 166960K 6 0 mrt 1 0K 0K 166960K 4 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 523 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 189 63K 90K 166960K 8325 0 UVM aobj 42 3K 3K 166960K 42 0 pinsyscall 42 84K 102K 166960K 2048 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 37 0 NDP 21 1K 2K 166960K 60 0 temp 73 6824K 6896K 166960K 35004 0 kqueue 13 20K 36K 166960K 123 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 70 0 67 1 0 1 1 0 8 0 rtentry 112 209 0 144 4 0 4 4 0 8 1 unpcb 144 617 0 600 9 8 1 6 0 8 0 syncache 336 7 0 7 3 3 0 1 0 8 0 tcpqe 32 3 0 3 2 2 0 1 0 8 0 tcpcb 808 257 0 250 8 6 2 8 0 8 0 arp 120 37 0 25 1 0 1 1 0 8 0 inpcb 336 1012 0 1002 20 15 5 13 0 8 3 nd6 136 48 0 33 1 0 1 1 0 8 0 pkpcb 40 3 0 3 2 2 0 1 0 8 0 kcovpl 48 17 0 10 1 0 1 1 0 8 0 ppxss 1168 2 0 2 1 1 0 1 0 8 0 pffrag 232 9 0 3 1 0 1 1 0 482 0 pffrnode 88 9 0 3 1 0 1 1 0 8 0 pffrent 40 55 0 49 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 67 0 23 1 0 1 1 0 8 0 pfstkey 128 67 0 23 2 0 2 2 0 8 0 pfstate 376 67 0 23 5 0 5 5 0 8 0 pfrule 1344 22 0 15 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 862 0 554 32 2 30 30 0 8 6 art_table 32 863 0 554 4 0 4 4 0 8 0 art_node 16 207 0 150 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 1 0 1 0 8 0 semapl 112 25 0 10 1 0 1 1 0 8 0 shmpl 112 39 0 0 2 0 2 2 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2571 0 1055 95 0 95 95 0 8 0 ffsino 272 2571 0 1055 103 1 102 102 0 8 0 nchpl 144 3518 0 1820 63 0 63 63 0 8 0 uvmvnodes 80 2992 0 0 62 0 62 62 0 8 0 vnodes 216 2992 0 0 167 0 167 167 0 8 0 namei 1024 12166 0 12165 5 4 1 3 0 8 0 percpumem 16 62 0 15 1 0 1 1 0 8 0 kstatmem 264 56 0 30 2 0 2 2 0 8 0 acpiwqpl 32 2 0 2 1 0 1 1 1 8 1 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 16970 0 16969 11 6 5 8 1 8 4 plimitpl 152 108 0 91 1 0 1 1 0 8 0 sigapl 424 1072 0 1001 12 3 9 9 0 8 0 futexpl 64 8124 0 8124 1 0 1 1 0 8 1 knotepl 120 314 0 0 10 0 10 10 0 8 0 kqueuepl 216 162 0 153 2 1 1 2 0 8 0 pipepl 320 203 0 176 3 0 3 3 0 8 0 fdescpl 496 1031 0 1000 5 0 5 5 0 8 1 filepl 152 6087 0 5862 25 14 11 19 0 8 1 lockfpl 104 186 0 184 1 0 1 1 0 8 0 lockfspl 48 82 0 80 1 0 1 1 0 8 0 sessionpl 144 34 0 25 1 0 1 1 0 8 0 pgrppl 48 62 0 45 1 0 1 1 0 8 0 ucredpl 104 1007 0 994 1 0 1 1 0 8 0 zombiepl 144 1001 0 1001 1 0 1 1 0 8 1 processpl 1160 1072 0 1001 7 1 6 6 0 8 0 procpl 648 1965 0 1891 9 1 8 8 0 8 1 srpgc 96 6 0 6 2 2 0 1 0 8 0 sosppl 168 5 0 5 2 2 0 1 0 8 0 sockpl 664 1713 0 1683 38 31 7 21 0 8 3 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 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 139 0 0 18 0 18 18 0 8 0 mcl2k 2048 28 0 0 4 0 4 4 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 276 0 0 18 0 18 18 0 8 0 bufpl 280 7156 0 982 442 0 442 442 0 8 0 anonpl 24 230966 0 227919 98 26 72 75 0 185 41 amapchunkpl 152 27950 0 27603 34 4 30 32 0 158 15 amappl16 200 5769 0 5766 37 28 9 15 0 8 8 amappl15 192 13 0 13 1 1 0 1 0 8 0 amappl14 184 138 0 126 1 0 1 1 0 8 0 amappl13 176 10 0 10 1 1 0 1 0 8 0 amappl12 168 1812 0 1784 3 1 2 2 0 8 0 amappl11 160 56 0 42 1 0 1 1 0 8 0 amappl10 152 12 0 12 1 1 0 1 0 8 0 amappl9 144 167 0 167 1 1 0 1 0 8 0 amappl8 136 23 0 19 1 0 1 1 0 8 0 amappl7 128 130 0 118 1 0 1 1 0 8 0 amappl6 120 241 0 238 1 0 1 1 0 8 0 amappl5 112 168 0 156 1 0 1 1 0 8 0 amappl4 104 340 0 320 1 0 1 1 0 8 0 amappl3 96 5369 0 5290 4 0 4 4 0 8 1 amappl2 88 800 0 730 2 0 2 2 0 8 0 amappl1 80 10506 0 9946 16 2 14 15 0 8 0 amappl 88 7858 0 7729 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 1 0 1 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 8 0 8 2 2 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 41 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1031 0 1000 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1031 0 1000 1 0 1 1 0 8 0 vmmpekpl 168 9172 0 9104 4 0 4 4 0 8 0 vmmpepl 168 71567 0 69854 108 17 91 95 0 357 14 vmsppl 448 1030 0 1000 6 2 4 5 0 8 0 rwobjpl 56 26869 0 22980 63 6 57 58 0 8 1 pdppl 4096 2069 0 2000 110 41 69 85 0 8 0 pvpl 32 32850 0 0 266 1 265 265 0 265 0 pmappl 248 1030 0 1000 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 434 0 78 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff834a1ff0) 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 mtx_enter(fffffd806c4626a0) at mtx_enter+0xa7 sys/kern/kern_lock.c:250 vm_map_unbusy_ln(fffffd806c462558,20ffd000,0) at vm_map_unbusy_ln+0x7d sys/uvm/uvm_map.c:5338 uvm_map_clean(fffffd806c462558,20ffa000,20ffd000,4) at uvm_map_clean+0xa68 sys/uvm/uvm_map.c:4590 syscall(ffff80002a10c2a0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a10c2a0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd46c4863ab0, count: 7 ddb{0}> trace x86_ipi_db(ffffffff834a1ff0) 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 mtx_enter(fffffd806c4626a0) at mtx_enter+0xa7 sys/kern/kern_lock.c:250 vm_map_unbusy_ln(fffffd806c462558,20ffd000,0) at vm_map_unbusy_ln+0x7d sys/uvm/uvm_map.c:5338 uvm_map_clean(fffffd806c462558,20ffa000,20ffd000,4) at uvm_map_clean+0xa68 sys/uvm/uvm_map.c:4590 syscall(ffff80002a10c2a0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a10c2a0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd46c4863ab0, count: -8 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:437 panic(ffffffff830777cb) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_leave(fffffd806c462670) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd806c462588,fffffd806c462670,4,ffffffff832017c0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd806c462558,fffffd806be53b58,0) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvm_mapanon(fffffd806c462558,ffff8000365b78b0,21000,1000,2080713) at uvm_mapanon+0x292 uvm_mmapanon(fffffd806c462558,ffff8000365b78b0,21000,3,7,5002,ae80714a3d2efeff,5002) at uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1019 sys_mmap(ffff8000ffff6020,ffff8000365b7a20,ffff8000365b7970) at sys_mmap+0xa96 sys/uvm/uvm_mmap.c:421 syscall(ffff8000365b7a20) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000365b7a20) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71d3e5ceeec0, count: 5 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830777cb) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_leave(fffffd806c462670) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd806c462588,fffffd806c462670,4,ffffffff832017c0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd806c462558,fffffd806be53b58,0) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvm_mapanon(fffffd806c462558,ffff8000365b78b0,21000,1000,2080713) at uvm_mapanon+0x292 uvm_mmapanon(fffffd806c462558,ffff8000365b78b0,21000,3,7,5002,ae80714a3d2efeff,5002) at uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1019 sys_mmap(ffff8000ffff6020,ffff8000365b7a20,ffff8000365b7970) at sys_mmap+0xa96 sys/uvm/uvm_mmap.c:421 syscall(ffff8000365b7a20) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000365b7a20) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71d3e5ceeec0, count: -10