witness: lock order reversal: 1st 0xffffffff83950158 &sched_lock (&sched_lock) 2nd 0xffffffff8384fe30 &cq->cq_mtx (&cq->cq_mtx) lock order [1] &sched_lock (&sched_lock) -> [2] &cq->cq_mtx (&cq->cq_mtx) #0 mtx_enter+0x95 sys/kern/kern_lock.c:406 #1 clockintr_cancel+0x2f sys/kern/kern_clockintr.c:323 #2 mi_switch+0x187 sys/kern/sched_bsd.c:376 #3 ast+0x15a mi_ast sys/sys/syscall_mi.h:252 [inline] #3 ast+0x15a sys/arch/amd64/amd64/trap.c:739 #4 intr_user_exit+0x3c lock order [2] &cq->cq_mtx (&cq->cq_mtx) -> [1] &sched_lock (&sched_lock) #0 mtx_enter+0x95 sys/kern/kern_lock.c:406 #1 sleep_setup+0xed sys/kern/kern_synch.c:304 #2 msleep_nsec+0x10b sys/kern/kern_synch.c:217 #3 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 #4 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #4 dtclose+0x109 sys/dev/dt/dt_dev.c:239 #5 spec_close+0x466 sys/kern/spec_vnops.c:-1 #6 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 #7 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #7 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #8 fdrop+0x121 sys/kern/kern_descrip.c:1280 #9 closef+0x192 sys/kern/kern_descrip.c:1264 #10 fdfree+0x116 sys/kern/kern_descrip.c:1195 #11 exit1+0x576 sys/kern/kern_exit.c:215 #12 sys_exit+0x1a sys/kern/kern_exit.c:-1 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #14 Xsyscall+0x128 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 witness_checkorder(ffffffff8384fe30,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 mtx_enter(ffffffff8384fe20) at mtx_enter+0x95 sys/kern/kern_lock.c:406 clockintr_cancel(ffffffff8384f2f8) at clockintr_cancel+0x2f sys/kern/kern_clockintr.c:323 mi_switch() at mi_switch+0x187 sys/kern/sched_bsd.c:376 ast(ffff80003c48dff0) at ast+0x15a mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff80003c48dff0) at ast+0x15a sys/arch/amd64/amd64/trap.c:739 intr_user_exit() at intr_user_exit+0x3c end of kernel end trace frame: 0x71abb74a5310, count: -7 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003c48ddf0 rbx 0 rdx 0 rcx 0xffff8000fffdbcb8 rax 0xffffffff8384eff0 cpu_info_full_primary+0x1ff0 r8 0xffff80003c48dcd0 r9 0x8080808080808080 r10 0x46374587a28a38bb r11 0x8b9f30a6b0a6b369 r12 0xfffffd8003f4a300 r13 0xfffffd80046f7330 r14 0x3 r15 0xffffffff8341966f substchar+0x99b5 rip 0xffffffff8205cc95 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c48dde0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=18679 pid=15182 tcnt=3 stat=run flags process=4000000 proc=0 runpri=80, usrpri=80, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0x0, list=0xffff8000fffdb258,0xffff8000fffda040 process=0xffff8000fffe21d0 user=0xffff80003c489000, vmspace=0xfffffd805f618218 estcpu=36, cpticks=2, pctcpu=0.0, user=1, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 90616 99073 92723 0 2 0 syz-executor 90616 113545 92723 0 3 0x4000080 fsleep syz-executor 90616 47690 92723 0 3 0x4000080 fsleep syz-executor 90616 402254 92723 0 2 0x4000000 syz-executor 12481 121311 1269 0 2 0 syz-executor 12481 453427 1269 0 3 0x4000080 fsleep syz-executor 98286 409202 61722 0 2 0 syz-executor 98286 442836 61722 0 3 0x4000080 fsleep syz-executor *15182 18679 87899 0 2 0x4000000 syz-executor 15182 62558 87899 0 2 0x4000000 syz-executor 15182 270421 87899 0 2 0x4000000 syz-executor 26363 489055 22988 0 2 0 syz-executor 26363 109914 22988 0 2 0x4000000 syz-executor 26363 419640 22988 0 3 0x4000080 ttyout syz-executor 26363 147961 22988 0 3 0x4000080 fsleep syz-executor 26363 128714 22988 0 3 0x4000080 fsleep syz-executor 50714 225520 928 0 3 0x82 sbwait sshd-session 61722 232270 42922 0 2 0xc82 syz-executor 3349 127519 0 0 3 0x14280 nfsidl nfsio 96634 87994 0 0 3 0x14280 nfsidl nfsio 7738 300207 0 0 3 0x14280 nfsidl nfsio 59073 16368 0 0 3 0x14280 nfsidl nfsio 32704 284871 0 0 3 0x14280 nfsidl nfsio 27795 280376 0 0 3 0x14280 nfsidl nfsio 32809 475099 0 0 3 0x14280 nfsidl nfsio 357 448664 0 0 3 0x14280 nfsidl nfsio 66988 173314 0 0 3 0x14280 nfsidl nfsio 21913 481548 0 0 3 0x14280 nfsidl nfsio 44071 306770 0 0 3 0x14280 nfsidl nfsio 82186 130635 0 0 3 0x14280 nfsidl nfsio 98683 43389 0 0 3 0x14280 nfsidl nfsio 77357 214957 0 0 3 0x14280 nfsidl nfsio 2440 63905 0 0 3 0x14280 nfsidl nfsio 99653 375211 0 0 3 0x14280 nfsidl nfsio 35958 378230 0 0 3 0x14280 nfsidl nfsio 47653 275953 0 0 3 0x14280 nfsidl nfsio 55007 355053 0 0 3 0x14280 nfsidl nfsio 97991 357873 0 0 3 0x14280 nfsidl nfsio 84034 494802 42922 0 2 0xc82 syz-executor 88266 498747 42922 0 3 0x82 nanoslp syz-executor 87899 55754 42922 0 2 0xc82 syz-executor 22988 331484 42922 0 3 0x82 nanoslp syz-executor 92723 209923 42922 0 3 0x82 nanoslp syz-executor 1269 439445 42922 0 3 0x82 nanoslp syz-executor 86875 173327 42922 0 2 0xc82 syz-executor 42922 22412 83750 0 3 0x82 kqread syz-executor 83750 14173 39574 0 3 0x10008a sigsusp ksh 39574 415422 52449 0 3 0x98 kqread sshd-session 52449 294423 928 0 3 0x92 kqread sshd-session 89833 131036 1 0 3 0x100083 ttyopn getty 928 187687 1 0 3 0x88 kqread sshd 39305 404157 84245 74 3 0x1100092 bpf pflogd 84245 147631 1 0 3 0x80 sbwait pflogd 92437 235706 42358 73 3 0x1100090 kqread syslogd 42358 125337 1 0 3 0x100082 sbwait syslogd 62618 57984 1 0 3 0x100080 kqread resolvd 37086 241137 28917 77 3 0x100092 kqread dhcpleased 8130 16937 28917 77 3 0x100092 kqread dhcpleased 28917 485956 1 0 3 0x80 kqread dhcpleased 47119 199701 0 0 3 0x14200 bored smr 96644 190354 0 0 2 0x14200 zerothread 23985 38672 0 0 3 0x14200 aiodoned aiodoned 31829 357846 0 0 3 0x14200 syncer update 76939 409418 0 0 3 0x14200 cleaner cleaner 80678 33583 0 0 3 0x14200 reaper reaper 4308 383038 0 0 3 0x14200 pgdaemon pagedaemon 27405 319134 0 0 3 0x14200 bored viomb 96963 149360 0 0 3 0x40014200 acpi0 acpi0 54472 492186 0 0 3 0x40014200 idle1 72535 248853 0 0 3 0x14200 bored softnet1 19323 382562 0 0 3 0x14200 bored softnet0 47661 451456 0 0 3 0x14200 bored systqmp 91787 116095 0 0 3 0x14200 bored systq 91078 477730 0 0 3 0x14200 tmoslp softclockmp 85012 189953 0 0 3 0x40014200 tmoslp softclock 78872 459339 0 0 3 0x40014200 idle0 1 175518 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &sched_lock r = 0 (0xffffffff83950158) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 preempt+0x35 sys/kern/sched_bsd.c:338 #3 ast+0x15a mi_ast sys/sys/syscall_mi.h:252 [inline] #3 ast+0x15a sys/arch/amd64/amd64/trap.c:739 #4 intr_user_exit+0x3c CPU 1: exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff83949348) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 uvm_pmr_freepages+0x1a8 sys/uvm/uvm_pmemrange.c:-1 #3 uvm_anfree+0xe9 sys/uvm/uvm_anon.c:112 #4 amap_wipeout+0x246 sys/uvm/uvm_amap.c:-1 #5 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #6 uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2530 #7 exit1+0x6fc sys/kern/kern_exit.c:260 #8 sys_exit+0x1a sys/kern/kern_exit.c:-1 #9 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #10 Xsyscall+0x128 Process 26363 (syz-executor) thread 0xffff80003c407500 (109914) exclusive rrwlock inode r = 0 (0xfffffd806e8ec9e0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11102 12188K 14122K 166960K 13565 0 pcb 17 13K 14K 166960K 252 0 rtable 225 10K 11K 166960K 525 0 pf 34 17K 21K 166960K 142 0 ifaddr 59 12K 13K 166960K 127 0 ifgroup 51 2K 3K 166960K 175 0 sysctl 3 1K 9K 166960K 8 0 counters 68 36K 38K 166960K 196 0 ioctlops 0 0K 4K 166960K 1713 0 iov 0 0K 12K 166960K 49 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1483 93K 93K 166960K 2232 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 27 1K 1K 166960K 65 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 1011 0 sigio 0 0K 0K 166960K 19 0 proc 72 115K 163K 166960K 667 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 197 0 in_multi 90 6K 8K 166960K 164 0 ether_multi 1 0K 0K 166960K 9 0 mrt 1 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 602 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 279 190K 199K 166960K 10918 0 UVM aobj 10 8K 8K 166960K 10 0 pinsyscall 44 88K 106K 166960K 2171 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 80 0 NDP 11 0K 2K 166960K 75 0 temp 64 8675K 8795K 166960K 49096 0 kqueue 15 22K 27K 166960K 184 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 102 0 99 1 0 1 1 0 8 0 rtentry 176 155 0 62 6 0 6 6 0 8 0 unpcb 144 843 0 823 12 8 4 6 0 8 3 syncache 336 7 0 7 3 3 0 1 0 8 0 tcpqe 32 7 0 7 2 1 1 1 0 8 1 tcpcb 736 337 0 330 14 12 2 7 0 8 1 arp 136 22 0 6 1 0 1 1 0 8 0 inpcb 328 1220 0 1208 23 18 5 12 0 8 3 nd6 152 32 0 9 2 0 2 2 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 2 0 2 2 2 0 1 0 8 0 ppxss 1192 49 0 49 3 2 1 1 0 8 1 pppxif 1504 4 0 4 2 2 0 1 0 8 0 pfstscr 40 12 0 12 2 2 0 1 0 8 0 pffrag 232 15 0 4 1 0 1 1 0 482 0 pffrnode 88 13 0 4 1 0 1 1 0 8 0 pffrent 40 25 0 14 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 pfrktable 1344 2 0 1 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 4 0 2 1 0 1 1 0 8 0 pfstkey 128 91 0 89 2 1 1 1 0 8 0 pfstate 448 46 0 45 2 1 1 1 0 8 0 pfrule 1360 4 0 2 2 1 1 1 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 685 0 309 34 5 29 30 0 8 3 art_table 40 688 0 309 5 0 5 5 0 8 0 art_node 32 152 0 69 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 5 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 60 0 35 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 3216 0 1709 95 0 95 95 0 8 0 ffsino 296 3216 0 1709 117 0 117 117 0 8 0 nchpl 144 4588 0 2876 64 0 64 64 0 8 0 rtmask 32 9 0 9 4 3 1 1 0 8 1 vnodes 216 3847 0 0 214 0 214 214 0 8 0 namei 1024 15048 0 15048 2 1 1 1 0 8 1 percpumem 16 113 0 64 1 0 1 1 0 8 0 vcpupl 3968 3 0 0 1 0 1 1 0 8 0 vmpool 848 3 0 0 1 0 1 1 0 8 0 kstatmem 264 112 0 88 4 2 2 3 0 8 0 scsiplug 72 3 0 3 3 2 1 1 0 8 1 scxspl 216 29553 0 29553 11 10 1 8 1 8 1 plimitpl 152 233 0 214 1 0 1 1 0 8 0 sigapl 424 1330 0 1261 9 0 9 9 0 8 0 knotepl 120 333 0 0 10 0 10 10 0 8 0 kqueuepl 224 428 0 416 6 4 2 5 0 8 1 pipepl 344 326 0 299 9 6 3 9 0 8 0 fdescpl 528 1293 0 1261 3 0 3 3 0 8 0 filepl 160 7705 0 7473 33 19 14 20 0 8 2 lockfpl 104 389 0 386 2 0 2 2 0 8 1 lockfspl 48 126 0 123 1 0 1 1 0 8 0 sessionpl 144 27 0 17 1 0 1 1 0 8 0 pgrppl 48 47 0 29 1 0 1 1 0 8 0 ucredpl 104 949 0 936 1 0 1 1 0 8 0 zombiepl 144 1264 0 1261 1 0 1 1 0 8 0 processpl 1232 1330 0 1261 6 0 6 6 0 8 0 procpl 664 2794 0 2714 9 1 8 8 0 8 0 sosppl 176 8 0 8 3 3 0 1 0 8 0 sockpl 752 2207 0 2172 46 35 11 17 0 8 6 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 112 0 0 14 0 14 14 0 8 0 mcl2k 2048 29 0 0 4 0 4 4 0 8 0 mtagpl 96 16 0 0 1 0 1 1 0 8 0 mbufpl 256 1168 0 0 73 0 73 73 0 8 0 bufpl 280 11995 0 5859 439 0 439 439 0 8 0 anonpl 32 13401 0 0 109 0 109 109 0 246 0 amapchunkpl 152 37003 0 36356 44 13 31 36 0 158 5 amappl16 200 5462 0 5353 45 25 20 30 0 8 8 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 7 0 6 1 0 1 1 0 8 0 amappl13 176 437 0 436 1 0 1 1 0 8 0 amappl12 168 1670 0 1625 3 0 3 3 0 8 0 amappl11 160 19 0 19 3 3 0 1 0 8 0 amappl10 152 52 0 38 1 0 1 1 0 8 0 amappl9 144 250 0 250 1 1 0 1 0 8 0 amappl8 136 32 0 28 1 0 1 1 0 8 0 amappl7 128 88 0 86 1 0 1 1 0 8 0 amappl6 120 291 0 276 1 0 1 1 0 8 0 amappl5 112 81 0 69 1 0 1 1 0 8 0 amappl4 104 443 0 413 1 0 1 1 0 8 0 amappl3 96 6327 0 6222 4 1 3 3 0 8 0 amappl2 88 1438 0 1352 2 0 2 2 0 8 0 amappl1 80 14034 0 13346 17 2 15 15 0 8 0 amappl 88 10000 0 9809 5 0 5 5 0 92 0 uvmvnodes 80 134 0 0 3 0 3 3 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 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 7 0 7 2 2 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 9 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1293 0 1261 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1293 0 1261 1 0 1 1 0 8 0 vmmpekpl 168 12396 0 12351 3 0 3 3 0 8 0 vmmpepl 168 90172 0 87965 126 14 112 112 0 357 12 vmsppl 488 1292 0 1260 7 2 5 5 0 8 0 rwobjpl 80 27192 0 25900 35 2 33 33 0 8 1 pdppl 4096 2599 0 2523 109 33 76 85 0 8 0 pvpl 32 21842 0 0 178 2 176 177 0 265 0 pmappl 256 1295 0 1260 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 373 0 62 10 1 9 10 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:438 witness_checkorder(ffffffff8384fe30,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 mtx_enter(ffffffff8384fe20) at mtx_enter+0x95 sys/kern/kern_lock.c:406 clockintr_cancel(ffffffff8384f2f8) at clockintr_cancel+0x2f sys/kern/kern_clockintr.c:323 mi_switch() at mi_switch+0x187 sys/kern/sched_bsd.c:376 ast(ffff80003c48dff0) at ast+0x15a mi_ast sys/sys/syscall_mi.h:252 [inline] ast(ffff80003c48dff0) at ast+0x15a sys/arch/amd64/amd64/trap.c:739 intr_user_exit() at intr_user_exit+0x3c end of kernel end trace frame: 0x71abb74a5310, count: -7 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 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(ffffffff83950148) at mtx_enter+0x377 sys/kern/kern_lock.c:454 wakeup_n(ffffffff83949198,ffffffff) at wakeup_n+0x54 sys/kern/kern_synch.c:581 uvm_pmr_freepages(fffffd8008221700,1) at uvm_pmr_freepages+0x3eb sys/uvm/uvm_pmemrange.c:1341 uvm_anfree(fffffd80605144d0) at uvm_anfree+0xe9 sys/uvm/uvm_anon.c:112 amap_wipeout(fffffd8062b1abb0) at amap_wipeout+0x246 sys/uvm/uvm_amap.c:-1 uvm_unmap_detach(ffff80002a2eacf0,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd805f618030) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2530 exit1(ffff8000fffdaa90,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff8000fffdaa90,ffff80002a2eaec0,ffff80002a2eae10) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a2eaec0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2eaec0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x766e37fea980, count: -14