panic: kernel diagnostic assertion "ps->ps_uvncount == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/kern_unveil.c", line 188 Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 427895 18278 0 0x14000 0x200 1 reaper db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827a5b43) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff828207b7,ffffffff8282550b,bc,ffffffff827bb8de) at __assert+0x29 sys/kern/subr_prf.c:157 unveil_destroy(ffff80002fe63690) at unveil_destroy+0x1a4 sys/kern/kern_unveil.c:188 exit1(ffff8000211f9100,0,0,3) at exit1+0x3d5 sys/kern/kern_exit.c:220 single_thread_check_locked(ffff8000211f9100,0,0) at single_thread_check_locked+0x237 sys/kern/kern_sig.c:2015 userret(ffff8000211f9100) at userret+0x7c single_thread_check sys/kern/kern_sig.c:2054 [inline] userret(ffff8000211f9100) at userret+0x7c sys/kern/kern_sig.c:1970 intr_user_exit() at intr_user_exit+0x3c end of kernel end trace frame: 0x7b7ccffe27c0, 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: kernel diagnostic assertion "ps->ps_uvncount == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/kern_unveil.c", line 188 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827a5b43) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff828207b7,ffffffff8282550b,bc,ffffffff827bb8de) at __assert+0x29 sys/kern/subr_prf.c:157 unveil_destroy(ffff80002fe63690) at unveil_destroy+0x1a4 sys/kern/kern_unveil.c:188 exit1(ffff8000211f9100,0,0,3) at exit1+0x3d5 sys/kern/kern_exit.c:220 single_thread_check_locked(ffff8000211f9100,0,0) at single_thread_check_locked+0x237 sys/kern/kern_sig.c:2015 userret(ffff8000211f9100) at userret+0x7c single_thread_check sys/kern/kern_sig.c:2054 [inline] userret(ffff8000211f9100) at userret+0x7c sys/kern/kern_sig.c:1970 intr_user_exit() at intr_user_exit+0x3c end of kernel end trace frame: 0x7b7ccffe27c0, count: -8 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002612d250 rbx 0xffffffff82c46b9f cpu_info_full_primary+0x2b9f rdx 0 rcx 0xffff8000211f9100 rax 0xffffffff82c45ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xc7e125ef49864597 r11 0xab569700a44923eb r12 0xffffffff82c469a0 cpu_info_full_primary+0x29a0 r13 0 r14 0 r15 0x1 rip 0xffffffff81b9cdac db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002612d240 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.4) pid=439044 stat=onproc flags process=1008 proc=82000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000211f9928,0xffff800021275340 process=0xffff80002fe63690 user=0xffff800026128000, vmspace=0xfffffd8069932cc8 estcpu=36, cpticks=7, pctcpu=0.0 user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 71932 519801 44839 0 2 0 syz-executor.3 71932 248106 44839 0 3 0x4000080 ttyout syz-executor.3 57670 314606 29515 0 2 0 syz-executor.0 57670 501716 29515 0 3 0x4000080 fsleep syz-executor.0 54388 438061 4927 0 2 0x480 syz-executor.1 54388 107030 4927 0 3 0x4000080 fsleep syz-executor.1 54388 426198 4927 0 3 0x4000080 fsleep syz-executor.1 54388 67535 4927 0 2 0x4000000 syz-executor.1 52979 378779 0 0 3 0x14200 acct acct 44839 382110 1022 0 3 0x82 nanoslp syz-executor.3 67583 118237 1022 0 3 0x82 nanoslp syz-executor.6 80124 127965 1022 0 2 0x2 syz-executor.5 50270 505932 1022 0 2 0x2 syz-executor.7 29515 497378 1022 0 3 0x82 nanoslp syz-executor.0 87074 322468 1 0 3 0x100083 ttyin getty 58353 323271 1022 0 2 0x2 syz-executor.2 4927 155695 1022 0 3 0x82 nanoslp syz-executor.1 18067 364346 0 0 3 0x14280 nfsidl nfsio 96087 8200 0 0 3 0x14280 nfsidl nfsio 57358 137339 0 0 3 0x14280 nfsidl nfsio 68527 443810 0 0 3 0x14280 nfsidl nfsio 38877 140634 0 0 3 0x14280 nfsidl nfsio 58453 171415 0 0 3 0x14280 nfsidl nfsio 14282 63976 0 0 3 0x14280 nfsidl nfsio 62117 519854 0 0 3 0x14280 nfsidl nfsio 50474 4793 0 0 3 0x14280 nfsidl nfsio 73076 370245 0 0 3 0x14280 nfsidl nfsio 81222 429015 0 0 3 0x14280 nfsidl nfsio 29157 450305 0 0 3 0x14280 nfsidl nfsio 34097 83094 0 0 3 0x14280 nfsidl nfsio 64514 213279 0 0 3 0x14280 nfsidl nfsio 67762 46666 0 0 3 0x14280 nfsidl nfsio 80355 47452 0 0 3 0x14280 nfsidl nfsio 77237 276954 0 0 3 0x14280 nfsidl nfsio 39036 121961 0 0 3 0x14280 nfsidl nfsio 84157 247127 0 0 3 0x14280 nfsidl nfsio 81650 323927 0 0 3 0x14280 nfsidl nfsio 40608 248040 1022 0 3 0x82 nanoslp syz-executor.4 88587 51280 0 0 3 0x14200 bored sosplice 43560 271551 76937 0 3 0x100082 netio ndp 76937 195870 1 0 3 0x10008a sigsusp sh 1022 328322 96916 0 3 0x2000082 wait syz-fuzzer 1022 296579 96916 0 3 0x6000082 nanoslp syz-fuzzer 1022 450998 96916 0 3 0x6000082 wait syz-fuzzer 1022 149006 96916 0 3 0x6000082 wait syz-fuzzer 1022 31444 96916 0 3 0x6000082 thrsleep syz-fuzzer 1022 471699 96916 0 3 0x6000082 thrsleep syz-fuzzer 1022 336496 96916 0 3 0x6000082 wait syz-fuzzer 1022 46909 96916 0 3 0x6000082 wait syz-fuzzer 1022 11979 96916 0 3 0x6000082 thrsleep syz-fuzzer 1022 10083 96916 0 3 0x6000082 kqread syz-fuzzer 1022 239284 96916 0 3 0x6000082 thrsleep syz-fuzzer 1022 442849 96916 0 3 0x6000082 wait syz-fuzzer 1022 103400 96916 0 3 0x6000082 wait syz-fuzzer 1022 476673 96916 0 3 0x6000082 wait syz-fuzzer 1022 80948 96916 0 3 0x6000082 thrsleep syz-fuzzer 1022 359094 96916 0 3 0x6000082 thrsleep syz-fuzzer 96916 311829 36162 0 3 0x10008a sigsusp ksh 36162 10892 37346 0 3 0x9a kqread sshd 37346 444288 1 0 3 0x88 kqread sshd 63793 376761 78171 74 3 0x1100092 bpf pflogd 78171 148980 1 0 3 0x80 netio pflogd 5874 413247 238 73 3 0x1100090 kqread syslogd 238 119523 1 0 3 0x100082 netio syslogd 95287 493152 1 0 3 0x100080 kqread resolvd 24479 344527 94655 77 3 0x100092 kqread dhcpleased 68083 324349 94655 77 3 0x100092 kqread dhcpleased 94655 20090 1 0 3 0x80 kqread dhcpleased 4162 417193 0 0 3 0x14200 bored smr 35238 58436 0 0 2 0x14200 zerothread 92446 476312 0 0 3 0x14200 aiodoned aiodoned 34054 489920 0 0 3 0x14200 syncer update 11226 459228 0 0 3 0x14200 cleaner cleaner 18278 427895 0 0 7 0x14200 reaper 96967 95370 0 0 3 0x14200 pgdaemon pagedaemon 99555 503261 0 0 3 0x14200 bored viomb 93875 237289 0 0 3 0x40014200 acpi0 acpi0 59492 137852 0 0 3 0x40014200 idle1 87677 503964 0 0 3 0x14200 bored softnet3 27551 102735 0 0 3 0x14200 bored softnet2 71148 128953 0 0 3 0x14200 bored softnet1 32377 62192 0 0 3 0x14200 bored softnet0 82777 480018 0 0 3 0x14200 bored systqmp 14383 223522 0 0 3 0x14200 bored systq 71986 14964 0 0 2 0x40014200 softclock 15710 215524 0 0 3 0x40014200 idle0 1 331798 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 80124 (syz-executor.5) thread 0xffff80002126ade8 (127965) Process 50270 (syz-executor.7) thread 0xffff800021273b60 (505932) Process 58353 (syz-executor.2) thread 0xffff80002129b070 (323271) Process 18278 (reaper) thread 0xffff8000211acda0 (427895) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10212 6574K 7594K 78643K 28752 0 pcb 13 16K 18K 78643K 631 0 rtable 241 7K 7K 78643K 1389 0 pf 34 9K 10K 78643K 462 0 ifaddr 46 17K 18K 78643K 319 0 ifgroup 57 2K 2K 78643K 706 0 sysctl 2 0K 1K 78643K 11 0 counters 62 36K 36K 78643K 414 0 ioctlops 0 0K 4K 78643K 1676 0 iov 0 0K 24K 78643K 1015 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1493 93K 93K 78643K 8111 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 142 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 1930 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 17 61K 89K 78643K 12466 0 sigio 0 0K 0K 78643K 803 0 proc 74 115K 115K 78643K 1923 0 subproc 117 7K 7K 78643K 559 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 965 0 in_multi 99 7K 7K 78643K 543 0 ether_multi 1 0K 0K 78643K 12 0 mrt 1 0K 0K 78643K 4 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 79 360K 360K 78643K 79 0 exec 0 0K 1K 78643K 2082 0 pfkey data 0 0K 0K 78643K 2 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 470 99K 113K 78643K 122087 0 UVM aobj 131 4K 4K 78643K 147 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 271 0 NDP 13 0K 1K 78643K 263 0 temp 74 5920K 6052K 78643K 100285 0 kqueue 12 18K 30K 78643K 833 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 120 401 0 397 4 3 1 3 0 8 0 rtentry 112 462 0 350 4 0 4 4 0 8 0 unpcb 144 30979 0 30964 119 113 6 13 0 8 5 syncache 296 83 0 83 15 15 0 1 0 8 0 tcpqe 32 213 0 213 13 13 0 1 0 8 0 tcpcb 808 3000 0 2996 82 80 2 12 0 8 1 arp 120 79 0 61 1 0 1 1 0 8 0 inpcb 368 10581 0 10574 144 142 2 17 0 8 1 nd6 136 125 0 99 2 0 2 2 0 8 0 pkpcb 40 9 0 9 3 2 1 1 0 8 1 kcovpl 48 37 0 28 1 0 1 1 0 8 0 ppxss 1256 61 0 60 17 16 1 1 0 8 0 pffrag 232 149 0 143 2 1 1 1 0 482 0 pffrnode 88 148 0 142 2 1 1 1 0 8 0 pffrent 40 395 0 389 2 1 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 24 333 0 318 1 0 1 1 0 8 0 pfstkey 128 333 0 318 2 0 2 2 0 8 0 pfstate 376 333 0 318 11 8 3 5 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1830 0 1350 34 4 30 32 0 8 0 art_table 32 1831 0 1350 5 0 5 5 0 8 0 art_node 16 446 0 344 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 0 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 1926 0 1916 1 0 1 1 0 8 0 shmpl 112 144 0 16 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 17602 0 16060 97 0 97 97 0 8 0 ffsino 272 17602 0 16060 103 0 103 103 0 8 0 nchpl 144 34004 0 33488 64 41 23 64 0 8 0 uvmvnodes 80 6866 0 0 141 0 141 141 0 8 0 vnodes 216 6866 0 0 382 0 382 382 0 8 0 namei 1024 113431 0 113430 6 5 1 2 0 8 0 percpumem 16 220 0 176 1 0 1 1 0 8 0 kstatmem 264 378 0 352 2 0 2 2 0 8 0 scxspl 216 103008 0 103008 31 30 1 8 1 8 1 plimitpl 152 1436 0 1419 1 0 1 1 0 8 0 sigapl 424 12775 0 12705 16 7 9 9 0 8 0 futexpl 64 101663 0 101660 3 2 1 1 0 8 0 knotepl 120 804 0 0 18 0 18 18 0 8 0 kqueuepl 216 1980 0 1972 39 38 1 5 0 8 0 pipepl 320 3755 0 3724 107 104 3 9 0 8 0 fdescpl 496 12715 0 12685 5 0 5 5 0 8 0 filepl 152 98225 0 97959 182 166 16 27 0 8 5 lockfpl 104 6646 0 6634 16 15 1 3 0 8 0 lockfspl 48 2646 0 2634 1 0 1 1 0 8 0 sessionpl 144 54 0 36 1 0 1 1 0 8 0 pgrppl 48 298 0 280 1 0 1 1 0 8 0 ucredpl 104 8734 0 8716 1 0 1 1 0 8 0 zombiepl 144 12895 0 12893 3 2 1 1 0 8 0 processpl 1072 12775 0 12705 5 0 5 5 0 8 0 procpl 696 33690 0 33598 23 13 10 11 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 1237 0 1237 5 4 1 1 0 8 1 sockpl 488 41986 0 41960 956 944 12 50 0 8 8 mcl64k 65536 25 0 0 4 1 3 3 0 8 0 mcl16k 16384 15 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 15 0 0 2 0 2 2 0 8 0 mcl8k 8192 18 0 0 3 0 3 3 0 8 0 mcl4k 4096 49 0 0 4 1 3 3 0 8 0 mcl2k2 2112 13 0 0 1 0 1 1 0 8 0 mcl2k 2048 402 0 0 35 10 25 35 0 8 0 mtagpl 96 798 0 0 20 0 20 20 0 8 0 mbufpl 256 1816 0 0 101 0 101 101 0 8 0 bufpl 288 24068 0 17202 491 0 491 491 0 8 0 anonpl 24 1348416 0 1334517 208 104 104 118 0 186 0 amapchunkpl 152 386991 0 386108 118 78 40 51 0 158 1 amappl16 200 27669 0 27222 172 148 24 37 0 8 0 amappl15 192 11 0 11 1 1 0 1 0 8 0 amappl14 184 265 0 247 2 1 1 2 0 8 0 amappl13 176 27 0 26 1 0 1 1 0 8 0 amappl12 168 13826 0 13787 4 2 2 3 0 8 0 amappl11 160 65 0 50 1 0 1 1 0 8 0 amappl10 152 56 0 43 1 0 1 1 0 8 0 amappl9 144 340 0 340 20 19 1 1 0 8 1 amappl8 136 779 0 610 6 0 6 6 0 8 0 amappl7 128 130 0 116 2 0 2 2 0 8 0 amappl6 120 575 0 547 2 1 1 2 0 8 0 amappl5 112 458 0 447 1 0 1 1 0 8 0 amappl4 104 995 0 944 3 1 2 3 0 8 0 amappl3 96 75517 0 75429 4 1 3 3 0 8 0 amappl2 88 13400 0 13317 3 1 2 3 0 8 0 amappl1 80 55105 0 54526 23 9 14 23 0 8 0 amappl 88 120934 0 120684 7 0 7 7 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 72 146 0 16 3 0 3 3 0 8 0 uaddrrnd 24 12715 0 12684 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 12715 0 12684 1 0 1 1 0 8 0 vmmpekpl 168 103903 0 103842 3 0 3 3 0 8 0 vmmpepl 168 761623 0 759055 321 194 127 139 0 357 0 vmsppl 464 12714 0 12684 5 0 5 5 0 8 0 rwobjpl 56 190014 0 181311 147 21 126 126 0 8 0 pdppl 4096 25438 0 25368 512 438 74 82 0 8 4 pvpl 32 3614661 0 3594127 610 426 184 367 0 265 0 pmappl 248 12714 0 12684 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1642 0 699 28 1 27 28 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827a5b43) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff828207b7,ffffffff8282550b,bc,ffffffff827bb8de) at __assert+0x29 sys/kern/subr_prf.c:157 unveil_destroy(ffff80002fe63690) at unveil_destroy+0x1a4 sys/kern/kern_unveil.c:188 exit1(ffff8000211f9100,0,0,3) at exit1+0x3d5 sys/kern/kern_exit.c:220 single_thread_check_locked(ffff8000211f9100,0,0) at single_thread_check_locked+0x237 sys/kern/kern_sig.c:2015 userret(ffff8000211f9100) at userret+0x7c single_thread_check sys/kern/kern_sig.c:2054 [inline] userret(ffff8000211f9100) at userret+0x7c sys/kern/kern_sig.c:1970 intr_user_exit() at intr_user_exit+0x3c end of kernel end trace frame: 0x7b7ccffe27c0, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffff800020d58ff0) at x86_ipi_db+0x1e 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+0x27 __mp_lock(ffffffff82d8b330) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d8b330) at __mp_lock+0x122 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82d8b330,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x4c6 sys/kern/sched_bsd.c:470 yield() at yield+0x5b sys/kern/sched_bsd.c:324 pool_get(ffffffff82d60c58,1) at pool_get+0x19d sys/kern/subr_pool.c:589 uvm_mapent_alloc(ffffffff82d8b560,0) at uvm_mapent_alloc+0x2ff sys/uvm/uvm_map.c:1542 uvm_map_clip_start(ffffffff82d8b560,fffffd8067f07748,ffff80002fe22000) at uvm_map_clip_start+0x9b sys/uvm/uvm_map.c:4722 uvm_unmap_remove(ffffffff82d8b560,ffff80002fe22000,ffff80002fe28000,ffff8000211b9210,0,1,a921372827a7ab14) at uvm_unmap_remove+0x3a1 uvm_unmap(ffffffff82d8b560,ffff80002fe22000,ffff80002fe28000) at uvm_unmap+0x9d vm_map_unlock_ln sys/uvm/uvm_map.c:5379 [inline] uvm_unmap(ffffffff82d8b560,ffff80002fe22000,ffff80002fe28000) at uvm_unmap+0x9d sys/uvm/uvm_map.c:1856 uvm_uarea_free(ffff8000211f9be0) at uvm_uarea_free+0x39 sys/uvm/uvm_glue.c:288 reaper(ffff8000211acda0) at reaper+0x168 sys/kern/kern_exit.c:438 end trace frame: 0x0, count: 1 ddb{1}> trace x86_ipi_db(ffff800020d58ff0) at x86_ipi_db+0x1e 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+0x27 __mp_lock(ffffffff82d8b330) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d8b330) at __mp_lock+0x122 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82d8b330,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x4c6 sys/kern/sched_bsd.c:470 yield() at yield+0x5b sys/kern/sched_bsd.c:324 pool_get(ffffffff82d60c58,1) at pool_get+0x19d sys/kern/subr_pool.c:589 uvm_mapent_alloc(ffffffff82d8b560,0) at uvm_mapent_alloc+0x2ff sys/uvm/uvm_map.c:1542 uvm_map_clip_start(ffffffff82d8b560,fffffd8067f07748,ffff80002fe22000) at uvm_map_clip_start+0x9b sys/uvm/uvm_map.c:4722 uvm_unmap_remove(ffffffff82d8b560,ffff80002fe22000,ffff80002fe28000,ffff8000211b9210,0,1,a921372827a7ab14) at uvm_unmap_remove+0x3a1 uvm_unmap(ffffffff82d8b560,ffff80002fe22000,ffff80002fe28000) at uvm_unmap+0x9d vm_map_unlock_ln sys/uvm/uvm_map.c:5379 [inline] uvm_unmap(ffffffff82d8b560,ffff80002fe22000,ffff80002fe28000) at uvm_unmap+0x9d sys/uvm/uvm_map.c:1856 uvm_uarea_free(ffff8000211f9be0) at uvm_uarea_free+0x39 sys/uvm/uvm_glue.c:288 reaper(ffff8000211acda0) at reaper+0x168 sys/kern/kern_exit.c:438 end trace frame: 0x0, count: -14