panic: kernel diagnostic assertion "pmap->pm_type != PMAP_TYPE_EPT" failed: file "/syzkaller/managers/multicore/kernel/sys/arch/amd64/amd64/pmap.c", line 417 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 410581 97766 0 0x14000 0x200 0 zerothread *183293 94184 0 0x14000 0x200 1 reaper db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e0b3c) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309690a,ffffffff830bb028,1a1,ffffffff830c3d04) at __assert+0x29 pmap_page_remove(fffffd8008bfe760) at pmap_page_remove+0x7cd pmap_map_ptes sys/arch/amd64/amd64/pmap.c:431 [inline] pmap_page_remove(fffffd8008bfe760) at pmap_page_remove+0x7cd sys/arch/amd64/amd64/pmap.c:1965 uvm_anfree_list(fffffd806e042438,0) at uvm_anfree_list+0xd6 amap_wipeout(fffffd806068c7e8) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 uvm_unmap_detach(ffff800029fe5440,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd806bcb5dc8) at uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 uvmspace_free(fffffd806bcb5dc8) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd96d0) at reaper+0x246 sys/kern/kern_exit.c:481 end trace frame: 0x0, 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: kernel diagnostic assertion "pmap->pm_type != PMAP_TYPE_EPT" failed: file "/syzkaller/managers/multicore/kernel/sys/arch/amd64/amd64/pmap.c", line 417 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e0b3c) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309690a,ffffffff830bb028,1a1,ffffffff830c3d04) at __assert+0x29 pmap_page_remove(fffffd8008bfe760) at pmap_page_remove+0x7cd pmap_map_ptes sys/arch/amd64/amd64/pmap.c:431 [inline] pmap_page_remove(fffffd8008bfe760) at pmap_page_remove+0x7cd sys/arch/amd64/amd64/pmap.c:1965 uvm_anfree_list(fffffd806e042438,0) at uvm_anfree_list+0xd6 amap_wipeout(fffffd806068c7e8) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 uvm_unmap_detach(ffff800029fe5440,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd806bcb5dc8) at uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 uvmspace_free(fffffd806bcb5dc8) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd96d0) at reaper+0x246 sys/kern/kern_exit.c:481 end trace frame: 0x0, count: -10 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800029fe51e0 rbx 0xffff800029b7cd87 rdx 0 rcx 0xffff800029fd96d0 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x70a80eaac5389b45 r11 0xe40d94c7107b5163 r12 0xffff800029b7cb88 r13 0 r14 0 r15 0x1 rip 0xffffffff828ecb45 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800029fe51d0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (reaper) tid=183293 pid=94184 tcnt=1 stat=onproc flags process=14000 proc=200 runpri=4, usrpri=83, slppri=4, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800029fd9958,0xffff800029fd8cc0 process=0xffff800029feb1e0 user=0xffff800029fe0000, vmspace=0xffffffff834fe560 estcpu=33, cpticks=2, pctcpu=22.97, user=0, sys=7273, intr=45 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 93658 165516 40398 0 3 0x10008a sigsusp sh 40398 252072 83312 0 3 0x82 wait syz-executor 37664 29240 83312 0 2 0x2 syz-executor 33720 276790 83312 0 3 0x82 piperd syz-executor 24200 74278 83312 0 3 0x82 piperd syz-executor 15788 407486 83312 0 3 0x82 piperd syz-executor 25106 416225 83312 0 3 0x82 piperd syz-executor 5765 20094 0 0 3 0x14280 nfsidl nfsio 52897 315713 0 0 3 0x14280 nfsidl nfsio 36640 166237 0 0 3 0x14280 nfsidl nfsio 34396 482675 0 0 3 0x14280 nfsidl nfsio 46530 243338 0 0 3 0x14280 nfsidl nfsio 29335 136077 0 0 3 0x14280 nfsidl nfsio 10911 368377 0 0 3 0x14280 nfsidl nfsio 47374 24383 0 0 3 0x14280 nfsidl nfsio 76198 239424 0 0 3 0x14280 nfsidl nfsio 13081 393790 0 0 3 0x14280 nfsidl nfsio 75404 481625 0 0 3 0x14280 nfsidl nfsio 46598 215448 0 0 3 0x14280 nfsidl nfsio 2966 224320 0 0 3 0x14280 nfsidl nfsio 19509 106998 0 0 3 0x14280 nfsidl nfsio 88512 72724 0 0 3 0x14280 nfsidl nfsio 99042 450818 0 0 3 0x14280 nfsidl nfsio 13991 97422 0 0 3 0x14280 nfsidl nfsio 68681 403106 0 0 3 0x14280 nfsidl nfsio 99899 425443 0 0 3 0x14280 nfsidl nfsio 62619 43237 0 0 3 0x14280 nfsidl nfsio 2356 158866 0 0 3 0x14200 acct acct 74929 338157 83312 0 3 0x82 piperd syz-executor 22717 474437 1 0 3 0x100083 ttyin getty 22152 335070 0 0 3 0x14200 bored sosplice 83312 89731 47636 0 3 0x82 wait syz-executor 47636 279298 37824 0 3 0x10008a sigsusp ksh 37824 516791 24656 0 3 0x98 kqread sshd-session 24656 52708 75493 0 3 0x92 kqread sshd-session 75493 310922 1 0 3 0x88 kqread sshd 90944 402918 74490 74 3 0x1100092 bpf pflogd 74490 366429 1 0 3 0x80 sbwait pflogd 16239 120629 55098 73 2 0x1100010 syslogd 55098 497966 1 0 3 0x100082 sbwait syslogd 61350 266772 1 0 3 0x100080 kqread resolvd 17989 335549 88216 77 3 0x100092 kqread dhcpleased 46851 8838 88216 77 3 0x100092 kqread dhcpleased 88216 214676 1 0 3 0x80 kqread dhcpleased 18882 267720 0 0 3 0x14200 bored smr 97766 410581 0 0 7 0x14200 zerothread 40121 430558 0 0 3 0x14200 aiodoned aiodoned 57873 68259 0 0 3 0x14200 syncer update 41711 37863 0 0 3 0x14200 cleaner cleaner *94184 183293 0 0 7 0x14200 reaper 22199 383154 0 0 3 0x14200 pgdaemon pagedaemon 1985 84721 0 0 3 0x14200 bored viomb 25864 205739 0 0 3 0x40014200 acpi0 acpi0 51744 305426 0 0 3 0x40014200 idle1 3193 405689 0 0 3 0x14200 bored softnet3 51117 417985 0 0 3 0x14200 bored softnet2 63385 419544 0 0 3 0x14200 bored softnet1 45803 283710 0 0 2 0x14200 softnet0 71668 488923 0 0 3 0x14200 bored systqmp 46049 73925 0 0 3 0x14200 bored systq 31142 278010 0 0 3 0x14200 tmoslp softclockmp 46549 211111 0 0 3 0x40014200 tmoslp softclock 11517 497084 0 0 3 0x40014200 idle0 1 150220 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff83595860) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 uvm_pagezero_thread+0x201 sys/uvm/uvm_pmemrange.c:2208 #4 proc_trampoline+0x10 Process 16239 (syslogd) thread 0xffff8000ffffdbe8 (120629) Process 94184 (reaper) thread 0xffff800029fd96d0 (183293) Process 45803 (softnet0) thread 0xffff8000ffffe798 (283710) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10194 10170K 10683K 166960K 12389 0 pcb 17 14K 16K 166960K 284 0 rtable 153 14K 16K 166960K 1083 0 pf 33 17K 26K 166960K 169 0 ifaddr 30 5K 7K 166960K 158 0 ifgroup 47 2K 2K 166960K 209 0 sysctl 2 0K 1K 166960K 5 0 counters 60 35K 36K 166960K 148 0 ioctlops 0 0K 4K 166960K 1631 0 iov 0 0K 20K 166960K 126 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1491 94K 94K 166960K 2403 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 23 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 60 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 10 33K 93K 166960K 1294 0 sigio 0 0K 0K 166960K 29 0 proc 70 91K 140K 166960K 1226 0 subproc 91 5K 7K 166960K 442 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 143 0 in_multi 56 4K 7K 166960K 371 0 ether_multi 1 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 109 493K 493K 166960K 109 0 exec 0 0K 1K 166960K 886 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 182 95K 116K 166960K 12523 0 UVM aobj 31 2K 3K 166960K 37 0 pinsyscall 35 70K 108K 166960K 2921 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 50 0 NDP 18 1K 1K 166960K 112 0 temp 69 6822K 6902K 166960K 62279 0 kqueue 13 20K 33K 166960K 188 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 120 153 0 150 1 0 1 1 0 8 0 rtentry 112 365 0 303 4 1 3 4 0 8 0 unpcb 144 898 0 881 8 7 1 6 0 8 0 syncache 336 8 0 8 4 4 0 1 0 8 0 tcpqe 32 1 12 1 1 1 0 1 0 8 0 tcpcb 808 332 0 324 6 4 2 5 0 8 0 arp 120 63 0 51 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 3 0 3 1 1 0 1 0 8 0 inpcb 336 1308 0 1297 16 14 2 7 0 8 0 nd6 136 94 0 82 1 0 1 1 0 8 0 pkpcb 40 5 0 5 1 1 0 1 0 8 0 kcovpl 48 34 0 27 1 0 1 1 0 8 0 ppxss 1168 10 0 10 3 3 0 1 0 8 0 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 8 0 3 2 1 1 1 0 482 0 pffrnode 88 8 0 3 2 1 1 1 0 8 0 pffrent 40 13 0 8 2 1 1 1 0 8 0 pfosfp 40 1431 0 1006 5 0 5 5 0 8 0 pfosfpen 112 1431 0 715 21 0 21 21 0 8 0 pfrktable 1344 4 0 1 1 0 1 1 0 8 0 pfanchor 1288 5 0 2 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 264 1 0 1 1 1 0 1 0 8 0 pfstitem 24 74 0 56 1 0 1 1 0 8 0 pfstkey 128 78 0 61 2 0 2 2 0 8 0 pfstate 376 74 0 58 4 0 4 4 0 8 0 pfrule 1344 38 0 28 2 0 2 2 0 8 0 art_heap8 4096 2 0 1 2 0 2 2 0 8 1 art_heap4 256 1485 0 1212 29 5 24 29 0 8 2 art_table 32 1487 0 1213 4 0 4 4 0 8 0 art_node 16 364 0 309 1 0 1 1 0 8 0 sysvmsgpl 40 23 0 15 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 58 0 48 1 0 1 1 0 8 0 shmpl 112 34 0 6 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 3086 0 1539 97 0 97 97 0 8 0 ffsino 272 3086 0 1539 104 0 104 104 0 8 0 nchpl 144 4571 0 2860 64 0 64 64 0 8 0 uvmvnodes 80 3974 0 0 82 0 82 82 0 8 0 vnodes 216 3974 0 0 221 0 221 221 0 8 0 namei 1024 18053 0 18053 4 3 1 2 0 8 1 percpumem 16 88 0 44 1 0 1 1 0 8 0 vcpupl 3904 6 0 2 1 0 1 1 0 8 0 vmpool 696 7 0 3 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 108 0 88 2 0 2 2 0 8 0 scsiplug 72 4 0 4 3 3 0 1 0 8 0 scxspl 216 28226 0 28226 13 12 1 8 1 8 1 plimitpl 152 309 0 292 1 0 1 1 0 8 0 sigapl 424 1563 0 1497 11 2 9 9 0 8 0 futexpl 64 14316 0 14316 3 3 0 1 0 8 0 knotepl 120 621 0 0 18 0 18 18 0 8 0 kqueuepl 216 308 0 299 1 0 1 1 0 8 0 pipepl 320 339 0 312 4 0 4 4 0 8 1 fdescpl 496 1523 0 1499 7 2 5 5 0 8 0 filepl 152 9651 0 9430 24 11 13 18 0 8 3 lockfpl 104 483 0 481 2 1 1 2 0 8 0 lockfspl 48 142 0 140 1 0 1 1 0 8 0 sessionpl 144 46 0 37 1 0 1 1 0 8 0 pgrppl 48 93 0 76 1 0 1 1 0 8 0 ucredpl 104 1406 0 1393 1 0 1 1 0 8 0 zombiepl 144 1499 0 1497 1 0 1 1 0 8 0 processpl 1160 1563 0 1497 7 1 6 6 0 8 0 procpl 648 3021 0 2955 9 1 8 8 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 7 0 7 3 3 0 1 0 8 0 sockpl 664 2411 0 2380 23 16 7 15 0 8 3 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 235 0 0 30 0 30 30 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 508 0 0 29 0 29 29 0 8 0 bufpl 280 8314 0 2142 441 0 441 441 0 8 0 anonpl 24 310858 0 307817 80 29 51 78 0 185 16 amapchunkpl 152 41655 0 41351 47 16 31 42 0 158 13 amappl16 200 6929 0 6922 40 31 9 15 0 8 6 amappl15 192 22 0 21 1 0 1 1 0 8 0 amappl14 184 181 0 169 1 0 1 1 0 8 0 amappl13 176 13 0 13 1 1 0 1 0 8 0 amappl12 168 2523 0 2497 3 1 2 3 0 8 0 amappl11 160 61 0 46 1 0 1 1 0 8 0 amappl10 152 33 0 33 1 1 0 1 0 8 0 amappl9 144 141 0 141 1 1 0 1 0 8 0 amappl8 136 34 0 31 1 0 1 1 0 8 0 amappl7 128 153 0 141 1 0 1 1 0 8 0 amappl6 120 383 0 379 1 0 1 1 0 8 0 amappl5 112 224 0 211 1 0 1 1 0 8 0 amappl4 104 379 0 358 1 0 1 1 0 8 0 amappl3 96 8092 0 8019 4 0 4 4 0 8 0 amappl2 88 916 0 847 2 0 2 2 0 8 0 amappl1 80 12520 0 11945 17 4 13 15 0 8 0 amappl 88 11921 0 11804 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 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 36 0 6 1 0 1 1 0 8 0 uaddrrnd 24 1530 0 1501 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1530 0 1501 1 0 1 1 0 8 0 vmmpekpl 168 14092 0 14033 4 0 4 4 0 8 0 vmmpepl 168 100359 0 98809 111 18 93 97 0 357 11 vmsppl 440 1529 0 1500 7 3 4 5 0 8 0 rwobjpl 56 34986 0 30089 73 3 70 71 0 8 0 pdppl 4096 3067 0 3004 136 65 71 85 0 8 8 pvpl 32 42689 0 0 345 0 345 345 0 265 0 pmappl 248 1529 0 1500 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 470 0 100 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83414ff0) 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 __sanitizer_cov_trace_const_cmp4(0,0) at __sanitizer_cov_trace_const_cmp4+0x15 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_const_cmp4(0,0) at __sanitizer_cov_trace_const_cmp4+0x15 sys/dev/kcov.c:235 _kernel_lock_held() at _kernel_lock_held+0x41 sys/kern/kern_lock.c:76 msleep(ffffffff835956cc,ffffffff83595850,7f,ffffffff8302434b,0) at msleep+0x1ac sys/kern/kern_synch.c:232 uvm_pagezero_thread(ffff800029fd8518) at uvm_pagezero_thread+0xe9 sys/uvm/uvm_pmemrange.c:2194 end trace frame: 0x0, count: 8 ddb{0}> trace x86_ipi_db(ffffffff83414ff0) 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 __sanitizer_cov_trace_const_cmp4(0,0) at __sanitizer_cov_trace_const_cmp4+0x15 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_const_cmp4(0,0) at __sanitizer_cov_trace_const_cmp4+0x15 sys/dev/kcov.c:235 _kernel_lock_held() at _kernel_lock_held+0x41 sys/kern/kern_lock.c:76 msleep(ffffffff835956cc,ffffffff83595850,7f,ffffffff8302434b,0) at msleep+0x1ac sys/kern/kern_synch.c:232 uvm_pagezero_thread(ffff800029fd8518) at uvm_pagezero_thread+0xe9 sys/uvm/uvm_pmemrange.c:2194 end trace frame: 0x0, count: -7 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(ffffffff830e0b3c) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309690a,ffffffff830bb028,1a1,ffffffff830c3d04) at __assert+0x29 pmap_page_remove(fffffd8008bfe760) at pmap_page_remove+0x7cd pmap_map_ptes sys/arch/amd64/amd64/pmap.c:431 [inline] pmap_page_remove(fffffd8008bfe760) at pmap_page_remove+0x7cd sys/arch/amd64/amd64/pmap.c:1965 uvm_anfree_list(fffffd806e042438,0) at uvm_anfree_list+0xd6 amap_wipeout(fffffd806068c7e8) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 uvm_unmap_detach(ffff800029fe5440,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd806bcb5dc8) at uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 uvmspace_free(fffffd806bcb5dc8) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd96d0) at reaper+0x246 sys/kern/kern_exit.c:481 end trace frame: 0x0, count: 5 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e0b3c) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309690a,ffffffff830bb028,1a1,ffffffff830c3d04) at __assert+0x29 pmap_page_remove(fffffd8008bfe760) at pmap_page_remove+0x7cd pmap_map_ptes sys/arch/amd64/amd64/pmap.c:431 [inline] pmap_page_remove(fffffd8008bfe760) at pmap_page_remove+0x7cd sys/arch/amd64/amd64/pmap.c:1965 uvm_anfree_list(fffffd806e042438,0) at uvm_anfree_list+0xd6 amap_wipeout(fffffd806068c7e8) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 uvm_unmap_detach(ffff800029fe5440,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd806bcb5dc8) at uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 uvmspace_free(fffffd806bcb5dc8) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd96d0) at reaper+0x246 sys/kern/kern_exit.c:481 end trace frame: 0x0, count: -10