uvm_fault(0xffffffff82d6bcf0, 0xffff80001ebd2ff8, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ffs_indirtrunc+0x583: movq 0(%rax,%rbx,8),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND *468731 7455 0 0 0x4000000 0K syz-executor.3 211502 53327 0 0x14000 0x200 1 reaper ffs_indirtrunc(fffffd806ad73ef0,fffffffffffffff4,1e3c40,ffffffffffffffff,0,ffff80002470e5d8) at ffs_indirtrunc+0x583 sys/ufs/ffs/ffs_inode.c:535 ffs_truncate(fffffd806ad73ef0,0,0,ffffffffffffffff) at ffs_truncate+0xff9 sys/ufs/ffs/ffs_inode.c:337 ufs_inactive(ffff80002470e7a8) at ufs_inactive+0x14e sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8068de5e78,ffff80002122bb50) at VOP_INACTIVE+0xc4 sys/kern/vfs_vops.c:489 vput(fffffd8068de5e78) at vput+0xac sys/kern/vfs_subr.c:779 vn_close(fffffd8068de5e78,3,fffffd807f7d7208,ffff80002122bb50) at vn_close+0x7e sys/kern/vfs_vnops.c:294 vndioctl(2902,80384601,ffff80002470f0c0,1,ffff80002122bb50) at vndioctl+0x8cf vndclear sys/dev/vnd.c:706 [inline] vndioctl(2902,80384601,ffff80002470f0c0,1,ffff80002122bb50) at vndioctl+0x8cf sys/dev/vnd.c:566 VOP_IOCTL(fffffd806fdcba80,80384601,ffff80002470f0c0,1,fffffd807f7d7618,ffff80002122bb50) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806692c448,80384601,ffff80002470f0c0,ffff80002122bb50) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80002122bb50,ffff80002470f1d8,ffff80002470f220) at sys_ioctl+0x4a2 syscall(ffff80002470f2a0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002470f2a0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x319a4916d70, count: 3 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(0xffffffff82d6bcf0, 0xffff80001ebd2ff8, 0, 1) -> d ddb{0}> trace ffs_indirtrunc(fffffd806ad73ef0,fffffffffffffff4,1e3c40,ffffffffffffffff,0,ffff80002470e5d8) at ffs_indirtrunc+0x583 sys/ufs/ffs/ffs_inode.c:535 ffs_truncate(fffffd806ad73ef0,0,0,ffffffffffffffff) at ffs_truncate+0xff9 sys/ufs/ffs/ffs_inode.c:337 ufs_inactive(ffff80002470e7a8) at ufs_inactive+0x14e sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8068de5e78,ffff80002122bb50) at VOP_INACTIVE+0xc4 sys/kern/vfs_vops.c:489 vput(fffffd8068de5e78) at vput+0xac sys/kern/vfs_subr.c:779 vn_close(fffffd8068de5e78,3,fffffd807f7d7208,ffff80002122bb50) at vn_close+0x7e sys/kern/vfs_vnops.c:294 vndioctl(2902,80384601,ffff80002470f0c0,1,ffff80002122bb50) at vndioctl+0x8cf vndclear sys/dev/vnd.c:706 [inline] vndioctl(2902,80384601,ffff80002470f0c0,1,ffff80002122bb50) at vndioctl+0x8cf sys/dev/vnd.c:566 VOP_IOCTL(fffffd806fdcba80,80384601,ffff80002470f0c0,1,fffffd807f7d7618,ffff80002122bb50) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806692c448,80384601,ffff80002470f0c0,ffff80002122bb50) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80002122bb50,ffff80002470f1d8,ffff80002470f220) at sys_ioctl+0x4a2 syscall(ffff80002470f2a0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002470f2a0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x319a4916d70, count: -12 ddb{0}> show registers rdi 0x2 rsi 0x2 rbp 0xffff80002470e530 rbx 0x7ff rdx 0 rcx 0xfffffffffffffff4 rax 0xffff80001ebcf000 r8 0xffffffffffffffff r9 0xffff80002470e5d8 r10 0xffff80002470e420 r11 0x703f98041c992985 r12 0x1 r13 0xffffffffffffffff r14 0x2 r15 0xfffffd806ad73ef0 rip 0xffffffff821ae1b3 ffs_indirtrunc+0x583 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002470e440 ss 0x10 ffs_indirtrunc+0x583: movq 0(%rax,%rbx,8),%r14 ddb{0}> show proc PROC (syz-executor.3) pid=468731 stat=onproc flags process=0 proc=4000000 pri=17, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800021299b90,0xffff800021299630 process=0xffff80002aff0450 user=0xffff80002470a000, vmspace=0xfffffd80089fa1b8 estcpu=36, cpticks=5, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 95173 47056 57657 0 2 0 syz-executor.0 95173 241569 57657 0 3 0x4000080 fsleep syz-executor.0 50933 245263 17465 0 2 0 syz-executor.1 50933 520481 17465 0 3 0x4000080 fsleep syz-executor.1 7455 368167 77693 0 2 0 syz-executor.3 * 7455 468731 77693 0 7 0x4000000 syz-executor.3 7455 347728 77693 0 2 0x4000000 syz-executor.3 86798 102765 34130 0 3 0x82 piperd syz-executor.5 17465 180951 34130 0 3 0x82 nanoslp syz-executor.1 5885 225237 34130 0 2 0x2 syz-executor.4 87446 432743 34130 0 3 0x82 piperd syz-executor.6 4186 521521 34130 0 2 0x2 syz-executor.7 77693 498378 34130 0 2 0x2 syz-executor.3 3968 421418 34130 0 3 0x82 nanoslp syz-executor.2 44038 112407 0 0 3 0x14280 nfsidl nfsio 56925 328197 0 0 3 0x14280 nfsidl nfsio 78997 492211 0 0 3 0x14280 nfsidl nfsio 83672 14002 0 0 3 0x14280 nfsidl nfsio 22402 453292 0 0 3 0x14280 nfsidl nfsio 28468 186208 0 0 3 0x14280 nfsidl nfsio 95126 20756 0 0 3 0x14280 nfsidl nfsio 89365 56623 0 0 3 0x14280 nfsidl nfsio 43475 293431 0 0 3 0x14280 nfsidl nfsio 28041 35634 0 0 3 0x14280 nfsidl nfsio 75661 23202 0 0 3 0x14280 nfsidl nfsio 61591 21285 0 0 3 0x14280 nfsidl nfsio 62877 100962 0 0 3 0x14280 nfsidl nfsio 65897 180848 0 0 3 0x14280 nfsidl nfsio 1129 144123 0 0 3 0x14280 nfsidl nfsio 66371 204182 0 0 3 0x14280 nfsidl nfsio 47893 513789 0 0 3 0x14280 nfsidl nfsio 85381 47145 0 0 3 0x14280 nfsidl nfsio 74626 256833 0 0 3 0x14280 nfsidl nfsio 78905 367361 0 0 3 0x14280 nfsidl nfsio 57657 281958 34130 0 2 0x482 syz-executor.0 84457 111628 0 0 3 0x14200 bored sosplice 34130 49315 48312 0 3 0x82 wait syz-fuzzer 34130 480018 48312 0 3 0x4000082 thrsleep syz-fuzzer 34130 257579 48312 0 3 0x4000082 wait syz-fuzzer 34130 502703 48312 0 3 0x4000082 wait syz-fuzzer 34130 301615 48312 0 3 0x4000082 thrsleep syz-fuzzer 34130 314624 48312 0 3 0x4000082 thrsleep syz-fuzzer 34130 306856 48312 0 3 0x4000082 thrsleep syz-fuzzer 34130 172530 48312 0 3 0x4000082 wait syz-fuzzer 34130 466392 48312 0 3 0x4000082 wait syz-fuzzer 34130 271863 48312 0 3 0x4000082 thrsleep syz-fuzzer 34130 317465 48312 0 3 0x4000082 thrsleep syz-fuzzer 34130 491045 48312 0 3 0x4000082 wait syz-fuzzer 34130 324173 48312 0 3 0x4000082 wait syz-fuzzer 34130 287283 48312 0 3 0x4000082 kqread syz-fuzzer 34130 76958 48312 0 3 0x4000082 thrsleep syz-fuzzer 34130 344289 48312 0 3 0x4000082 wait syz-fuzzer 48312 265939 21977 0 3 0x10008a sigsusp ksh 21977 515876 47174 0 3 0x9a kqread sshd 81851 72125 1 0 3 0x100083 ttyopn getty 47174 297167 1 0 3 0x88 kqread sshd 95674 397633 19897 74 3 0x1100092 bpf pflogd 19897 363241 1 0 3 0x80 netio pflogd 24715 118098 74013 73 3 0x1100090 kqread syslogd 74013 137439 1 0 3 0x100082 netio syslogd 62952 319998 1 0 3 0x100080 kqread resolvd 38064 72944 40926 77 3 0x100092 kqread dhcpleased 62922 448515 40926 77 3 0x100092 kqread dhcpleased 40926 16974 1 0 3 0x80 kqread dhcpleased 57044 450667 0 0 3 0x14200 bored smr 15040 72837 0 0 2 0x14200 zerothread 88788 361889 0 0 3 0x14200 aiodoned aiodoned 24389 199017 0 0 3 0x14200 syncer update 17773 356380 0 0 3 0x14200 cleaner cleaner 53327 211502 0 0 7 0x14200 reaper 7928 392233 0 0 3 0x14200 pgdaemon pagedaemon 41139 29156 0 0 3 0x14200 bored viomb 60056 225503 0 0 3 0x40014200 acpi0 acpi0 44668 504731 0 0 3 0x40014200 idle1 61164 307493 0 0 3 0x14200 bored softnet 27980 216868 0 0 3 0x14200 bored softnet 60480 8560 0 0 3 0x14200 bored softnet 11531 240873 0 0 3 0x14200 bored softnet 95495 123217 0 0 3 0x14200 bored systqmp 8805 96968 0 0 3 0x14200 bored systq 50545 287727 0 0 3 0x40014200 bored softclock 65788 245103 0 0 3 0x40014200 idle0 1 443767 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 7455 (syz-executor.3) thread 0xffff80002122bb50 (468731) Process 4186 (syz-executor.7) thread 0xffff8000212985d0 (521521) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10230 6515K 7171K 78643K 33542 0 pcb 14 22K 32K 78643K 15656 0 rtable 129 14K 19K 78643K 3439 0 ifaddr 60 29K 40K 78643K 2596 0 sysctl 2 0K 1K 78643K 12 0 counters 52 34K 37K 78643K 1752 0 ioctlops 0 0K 4K 78643K 2658 0 iov 0 0K 32K 78643K 3222 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1487 93K 93K 78643K 12799 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 21K 78643K 1531 0 VM map 2 1K 1K 78643K 2 0 sem 22 3K 5K 78643K 179 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 13 45K 89K 78643K 35334 0 sigio 0 0K 0K 78643K 4871 0 proc 76 91K 139K 78643K 4287 0 subproc 104 6K 6K 78643K 507 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1512 0 in_multi 35 2K 7K 78643K 1234 0 ether_multi 1 0K 0K 78643K 733 0 mrt 2 0K 0K 78643K 1258 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 223 996K 996K 78643K 223 0 exec 0 0K 1K 78643K 1932 0 pfkey data 0 0K 0K 78643K 22 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 500 97K 99K 78643K 230798 0 UVM aobj 131 4K 6K 78643K 163 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 1192 0 NDP 10 0K 2K 78643K 827 0 temp 122 5778K 6802K 78643K 132617 0 kqueue 12 18K 44K 78643K 3377 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 120 583 0 580 4 3 1 3 0 8 0 rtentry 112 1287 0 1239 7 3 4 4 0 8 0 unpcb 144 15409 0 15394 108 103 5 10 0 8 4 syncache 296 95 0 95 7 7 0 1 0 8 0 tcpqe 32 153 0 153 8 8 0 1 0 8 0 tcpcb 776 10053 0 10049 103 99 4 14 0 8 3 arp 120 85 0 77 1 0 1 1 0 8 0 inpcb 368 40184 0 40175 239 234 5 19 0 8 3 ip6q 72 13 0 13 1 1 0 1 0 8 0 ip6af 40 26 0 26 1 1 0 1 0 8 0 nd6 48 138 0 129 1 0 1 1 0 8 0 pkpcb 40 35 0 35 8 8 0 1 0 8 0 kcovpl 48 39 0 31 1 0 1 1 0 8 0 ppxss 1256 701 0 701 21 21 0 1 0 8 0 pppxif 1456 30 0 30 12 12 0 1 0 8 0 pfstscr 40 27 0 27 3 3 0 1 0 8 0 pffrag 232 36 0 35 7 6 1 1 0 482 0 pffrnode 88 36 0 35 7 6 1 1 0 8 0 pffrent 40 129 0 128 7 6 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 pfanchor 1280 41 0 30 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 264 5 0 5 2 2 0 1 0 8 0 pfstitem 24 317 0 314 1 0 1 1 0 8 0 pfstkey 128 367 0 364 2 1 1 2 0 8 0 pfstate 384 340 0 337 9 8 1 6 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 16 0 16 3 3 0 1 0 8 0 art_heap8 4096 8 0 7 6 5 1 2 0 8 0 art_heap4 256 3249 0 3071 55 38 17 32 0 8 0 art_table 32 3257 0 3078 6 2 4 5 0 8 0 art_node 16 1261 0 1222 1 0 1 1 0 8 0 sysvmsgpl 40 32 0 16 1 0 1 1 0 8 0 semupl 112 10 0 10 1 1 0 1 0 8 0 semapl 112 167 0 147 1 0 1 1 0 8 0 shmpl 112 160 0 32 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 50853 0 49334 96 0 96 96 0 8 0 ffsino 272 50853 0 49334 102 0 102 102 0 8 0 nchpl 144 105664 0 104011 64 0 64 64 0 8 0 rtmask 32 8 0 8 3 3 0 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 330707 0 330706 6 5 1 2 0 8 0 percpumem 16 889 0 850 1 0 1 1 0 8 0 vmpool 696 32 0 32 9 9 0 1 0 8 0 kstatmem 264 1482 0 1462 4 1 3 3 0 8 0 scsiplug 72 13 0 13 4 4 0 1 0 8 0 scxspl 216 559835 0 559835 45 41 4 8 0 8 4 plimitpl 152 1032 0 1015 1 0 1 1 0 8 0 sigapl 424 35691 0 35626 10 2 8 8 0 8 0 futexpl 64 328781 0 328779 2 1 1 1 0 8 0 knotepl 120 1115 0 0 18 3 15 15 0 8 0 kqueuepl 216 6652 0 6644 40 39 1 5 0 8 0 pipepl 320 5056 0 5023 77 70 7 8 0 8 4 fdescpl 496 35565 0 35539 6 2 4 5 0 8 0 filepl 152 210564 0 210279 156 137 19 20 0 8 8 lockfpl 104 6258 0 6256 10 8 2 2 0 8 1 lockfspl 48 2584 0 2582 1 0 1 1 0 8 0 sessionpl 144 55 0 38 1 0 1 1 0 8 0 pgrppl 48 413 0 396 1 0 1 1 0 8 0 ucredpl 104 20317 0 20304 1 0 1 1 0 8 0 zombiepl 144 35627 0 35626 4 3 1 1 0 8 0 processpl 1072 35691 0 35626 5 0 5 5 0 8 0 procpl 696 91233 0 91149 36 26 10 10 0 8 1 srpgc 96 170 0 170 12 12 0 1 0 8 0 sosppl 168 127 0 127 12 12 0 1 0 8 0 sockpl 488 56218 0 56191 620 608 12 34 0 8 7 mcl64k 65536 35 0 0 4 1 3 3 0 8 0 mcl16k 16384 39 0 0 4 2 2 3 0 8 0 mcl12k 12288 49 0 0 2 0 2 2 0 8 0 mcl9k 9216 34 0 0 3 1 2 2 0 8 0 mcl8k 8192 42 0 0 4 1 3 3 0 8 0 mcl4k 4096 49 0 0 4 1 3 3 0 8 0 mcl2k2 2112 17 0 0 2 0 2 2 0 8 0 mcl2k 2048 865 0 0 33 5 28 31 0 8 0 mtagpl 96 1109 0 0 19 1 18 19 0 8 0 mbufpl 256 2937 0 0 169 0 169 169 0 8 0 bufpl 288 344460 0 338138 452 0 452 452 0 8 0 anonpl 24 7134613 0 7120388 233 116 117 117 0 186 22 amapchunkpl 152 629879 0 629214 69 38 31 38 0 158 0 amappl16 200 101038 0 100670 159 126 33 33 0 8 12 amappl15 192 4 0 4 2 2 0 1 0 8 0 amappl14 184 285 0 264 2 0 2 2 0 8 0 amappl13 176 20 0 20 4 4 0 1 0 8 0 amappl12 168 813 0 809 1 0 1 1 0 8 0 amappl11 160 49 0 34 1 0 1 1 0 8 0 amappl10 152 78 0 66 1 0 1 1 0 8 0 amappl9 144 1163 0 1161 1 0 1 1 0 8 0 amappl8 136 1224 0 956 10 0 10 10 0 8 0 amappl7 128 332 0 303 2 0 2 2 0 8 0 amappl6 120 463 0 439 2 1 1 2 0 8 0 amappl5 112 925 0 916 1 0 1 1 0 8 0 amappl4 104 1279 0 1245 2 0 2 2 0 8 0 amappl3 96 103561 0 103507 2 0 2 2 0 8 0 amappl2 88 37785 0 37698 8 5 3 4 0 8 0 amappl1 80 787458 0 786715 28 10 18 28 0 8 0 amappl 88 228099 0 227897 9 3 6 6 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 72 162 0 32 4 1 3 3 0 8 0 uaddrrnd 24 35597 0 35571 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 35597 0 35571 1 0 1 1 0 8 0 vmmpekpl 168 240782 0 240727 3 0 3 3 0 8 0 vmmpepl 168 3177399 0 3174621 381 235 146 160 0 357 4 vmsppl 440 35596 0 35570 6 2 4 5 0 8 0 rwobjpl 56 846177 0 838351 145 30 115 115 0 8 3 pdppl 4096 71201 0 71140 545 476 69 81 0 8 8 pvpl 32 14207778 0 14187832 689 481 208 366 0 265 31 pmappl 248 35596 0 35570 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1746 0 791 28 0 28 28 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ffs_indirtrunc(fffffd806ad73ef0,fffffffffffffff4,1e3c40,ffffffffffffffff,0,ffff80002470e5d8) at ffs_indirtrunc+0x583 sys/ufs/ffs/ffs_inode.c:535 ffs_truncate(fffffd806ad73ef0,0,0,ffffffffffffffff) at ffs_truncate+0xff9 sys/ufs/ffs/ffs_inode.c:337 ufs_inactive(ffff80002470e7a8) at ufs_inactive+0x14e sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd8068de5e78,ffff80002122bb50) at VOP_INACTIVE+0xc4 sys/kern/vfs_vops.c:489 vput(fffffd8068de5e78) at vput+0xac sys/kern/vfs_subr.c:779 vn_close(fffffd8068de5e78,3,fffffd807f7d7208,ffff80002122bb50) at vn_close+0x7e sys/kern/vfs_vnops.c:294 vndioctl(2902,80384601,ffff80002470f0c0,1,ffff80002122bb50) at vndioctl+0x8cf vndclear sys/dev/vnd.c:706 [inline] vndioctl(2902,80384601,ffff80002470f0c0,1,ffff80002122bb50) at vndioctl+0x8cf sys/dev/vnd.c:566 VOP_IOCTL(fffffd806fdcba80,80384601,ffff80002470f0c0,1,fffffd807f7d7618,ffff80002122bb50) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806692c448,80384601,ffff80002470f0c0,ffff80002122bb50) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80002122bb50,ffff80002470f1d8,ffff80002470f220) at sys_ioctl+0x4a2 syscall(ffff80002470f2a0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002470f2a0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x319a4916d70, count: -12 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(ffffffff82db6020) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db6020) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff8000211c8fd0,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1382 uvm_map_teardown(fffffd806d2fd018) at uvm_map_teardown+0x28d sys/uvm/uvm_map.c:2598 uvmspace_free(fffffd806d2fd018) 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