uvm_fault(0xfffffd806b7a23b8, 0x7, 0, 1) -> e kernel: page fault trap, code=0 Stopped at witness_checkorder+0x1ec: movl 0x8(%r14),%ebx TID PID UID PRFLAGS PFLAGS CPU COMMAND 174023 9724 0 0x14000 0x200 0 reaper witness_checkorder(fffffd806f0557a8,9,0) at witness_checkorder+0x1ec sys/kern/subr_witness.c:794 mtx_enter(fffffd806f055798) at mtx_enter+0x3e sys/kern/kern_lock.c:265 knote_remove(ffff8000212ae2c0,fffffd806f055798,fffffd806f055820,0,0) at knote_remove+0x20d sys/kern/kern_event.c:1881 knote_fdclose(ffff8000212ae2c0,0) at knote_fdclose+0xae sys/kern/kern_event.c:1934 fdfree(ffff8000212ae2c0) at fdfree+0xdf sys/kern/kern_descrip.c:1196 exit1(ffff8000212ae2c0,0,0,1) at exit1+0x3e4 sys/kern/kern_exit.c:206 sys_exit(ffff8000212ae2c0,ffff80002e42f870,ffff80002e42f8c0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e42f940) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e42f940) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x724e19a82ff0, count: 6 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: uvm_fault(0xfffffd806b7a23b8, 0x7, 0, 1) -> e ddb{1}> trace witness_checkorder(fffffd806f0557a8,9,0) at witness_checkorder+0x1ec sys/kern/subr_witness.c:794 mtx_enter(fffffd806f055798) at mtx_enter+0x3e sys/kern/kern_lock.c:265 knote_remove(ffff8000212ae2c0,fffffd806f055798,fffffd806f055820,0,0) at knote_remove+0x20d sys/kern/kern_event.c:1881 knote_fdclose(ffff8000212ae2c0,0) at knote_fdclose+0xae sys/kern/kern_event.c:1934 fdfree(ffff8000212ae2c0) at fdfree+0xdf sys/kern/kern_descrip.c:1196 exit1(ffff8000212ae2c0,0,0,1) at exit1+0x3e4 sys/kern/kern_exit.c:206 sys_exit(ffff8000212ae2c0,ffff80002e42f870,ffff80002e42f8c0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e42f940) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e42f940) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x724e19a82ff0, count: -9 ddb{1}> show registers rdi 0 rsi 0x20000 acpi_pdirpa+0xbe63 rbp 0xffff80002e42f610 rbx 0xe rdx 0 rcx 0xffff8000212ae2c0 rax 0xffff800020d58ff0 r8 0x1 r9 0x1 r10 0xd04e1c25473b8995 r11 0x8a7d32b52b64c586 r12 0 r13 0xfffffd806f0557a8 r14 0xffffffffffffffff r15 0xffff8000212ae2c0 rip 0xffffffff81d5339c witness_checkorder+0x1ec cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002e42f560 ss 0x10 witness_checkorder+0x1ec: movl 0x8(%r14),%ebx ddb{1}> show proc PROC (syz-executor.4) pid=26248 stat=onproc flags process=1008 proc=2000 pri=0, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff80002127ba98,0xffff8000212aeac8 process=0xffff800027b65510 user=0xffff80002e42a000, vmspace=0xfffffd806b7a23b8 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 82440 235921 54374 0 2 0 syz-executor.5 82440 292036 54374 0 3 0x4000080 fsleep syz-executor.5 82440 204109 54374 0 3 0x4000080 fsleep syz-executor.5 82440 348109 54374 0 3 0x4000080 fsleep syz-executor.5 6623 509045 76334 0 3 0x80 nanoslp syz-executor.2 6623 370928 76334 0 2 0x4000000 syz-executor.2 6623 320585 76334 0 3 0x4000080 fsleep syz-executor.2 20457 173343 43109 0 2 0 syz-executor.6 20457 413959 43109 0 3 0x4000080 netio syz-executor.6 20457 322470 43109 0 3 0x4000080 fsleep syz-executor.6 20457 123974 43109 0 2 0x4000000 syz-executor.6 54374 245090 5494 0 3 0x82 nanoslp syz-executor.5 77062 1971 5494 0 3 0x82 piperd syz-executor.1 65422 495942 5494 0 3 0x82 nanoslp syz-executor.3 62745 94152 0 0 3 0x14280 nfsidl nfsio 13368 267779 0 0 3 0x14280 nfsidl nfsio 49393 266948 0 0 3 0x14280 nfsidl nfsio 91575 347814 0 0 3 0x14280 nfsidl nfsio 50706 159116 0 0 3 0x14280 nfsidl nfsio 91844 300534 0 0 3 0x14280 nfsidl nfsio 87024 73325 0 0 3 0x14280 nfsidl nfsio 31447 470385 0 0 3 0x14280 nfsidl nfsio 58836 238980 0 0 3 0x14280 nfsidl nfsio 95661 74670 0 0 3 0x14280 nfsidl nfsio 30750 39191 0 0 3 0x14280 nfsidl nfsio 46454 172492 0 0 3 0x14280 nfsidl nfsio 52232 270486 0 0 3 0x14280 nfsidl nfsio 84937 247980 0 0 3 0x14280 nfsidl nfsio 1625 434745 0 0 3 0x14280 nfsidl nfsio 63010 403362 0 0 3 0x14280 nfsidl nfsio 66758 440034 0 0 3 0x14280 nfsidl nfsio 9993 24939 0 0 3 0x14280 nfsidl nfsio 82228 98531 0 0 3 0x14280 nfsidl nfsio 94282 319993 0 0 3 0x14280 nfsidl nfsio 94583 450859 0 0 3 0x14200 bored sosplice 72691 200322 5494 0 3 0x82 nanoslp syz-executor.7 43109 373020 5494 0 3 0x82 nanoslp syz-executor.6 76364 333916 5494 0 3 0x82 nanoslp syz-executor.4 76334 261972 5494 0 3 0x82 nanoslp syz-executor.2 59642 56935 5494 0 3 0x82 nanoslp syz-executor.0 5494 248683 56500 0 3 0x2000082 thrsleep syz-fuzzer 5494 205819 56500 0 3 0x6000082 nanoslp syz-fuzzer 5494 193455 56500 0 3 0x6000082 wait syz-fuzzer 5494 249326 56500 0 3 0x6000082 wait syz-fuzzer 5494 173835 56500 0 3 0x6000082 wait syz-fuzzer 5494 77064 56500 0 3 0x6000082 thrsleep syz-fuzzer 5494 88392 56500 0 3 0x6000082 wait syz-fuzzer 5494 449572 56500 0 3 0x6000082 wait syz-fuzzer 5494 513123 56500 0 3 0x6000082 thrsleep syz-fuzzer 5494 36644 56500 0 3 0x6000082 wait syz-fuzzer 5494 148179 56500 0 3 0x6000082 thrsleep syz-fuzzer 5494 264566 56500 0 3 0x6000082 wait syz-fuzzer 5494 401536 56500 0 3 0x6000082 thrsleep syz-fuzzer 5494 514864 56500 0 3 0x6000082 thrsleep syz-fuzzer 5494 478033 56500 0 3 0x6000082 kqread syz-fuzzer 5494 144188 56500 0 3 0x6000082 wait syz-fuzzer 56500 421218 21464 0 3 0x10008a sigsusp ksh 21464 434258 77578 0 3 0x9a kqread sshd 51395 424792 1 0 3 0x100083 ttyin getty 77578 334875 1 0 3 0x88 kqread sshd 29608 164152 31039 74 3 0x1100092 bpf pflogd 31039 28957 1 0 3 0x80 netio pflogd 36148 499586 52636 73 3 0x1100090 kqread syslogd 52636 133590 1 0 3 0x100082 netio syslogd 71535 31366 1 0 3 0x100080 kqread resolvd 51846 169507 61215 77 3 0x100092 kqread dhcpleased 74369 166597 61215 77 3 0x100092 kqread dhcpleased 61215 98975 1 0 3 0x80 kqread dhcpleased 77631 316627 0 0 3 0x14200 bored smr 12122 89729 0 0 2 0x14200 zerothread 6426 228974 0 0 3 0x14200 aiodoned aiodoned 86669 330925 0 0 3 0x14200 syncer update 26987 6619 0 0 3 0x14200 cleaner cleaner 9724 174023 0 0 7 0x14200 reaper 10535 454110 0 0 3 0x14200 pgdaemon pagedaemon 30426 156577 0 0 3 0x14200 bored viomb 42604 364812 0 0 3 0x40014200 acpi0 acpi0 35892 145842 0 0 3 0x40014200 idle1 40844 142124 0 0 3 0x14200 bored softnet3 20266 227573 0 0 3 0x14200 bored softnet2 44686 58001 0 0 3 0x14200 bored softnet1 18089 95835 0 0 3 0x14200 bored softnet0 83839 363020 0 0 3 0x14200 bored systqmp 35275 173104 0 0 3 0x14200 bored systq 7240 66771 0 0 3 0x40014200 bored softclock 6030 134549 0 0 3 0x40014200 idle0 1 379495 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10230 6616K 6863K 78643K 12469 0 pcb 13 10K 12K 78643K 146 0 rtable 236 6K 6K 78643K 459 0 pf 32 9K 10K 78643K 69 0 ifaddr 45 15K 15K 78643K 71 0 ifgroup 55 2K 2K 78643K 101 0 sysctl 2 0K 0K 78643K 2 0 counters 60 35K 36K 78643K 86 0 ioctlops 0 0K 4K 78643K 1503 0 iov 0 0K 24K 78643K 114 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1375 86K 86K 78643K 1901 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 3 5K 5K 78643K 25 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 23 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 14 49K 85K 78643K 1320 0 sigio 0 0K 0K 78643K 79 0 proc 68 91K 128K 78643K 641 0 subproc 104 6K 6K 78643K 143 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 85 0 in_multi 99 7K 7K 78643K 136 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 211 943K 943K 78643K 211 0 exec 0 0K 1K 78643K 490 0 pfkey data 0 0K 0K 78643K 3 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 356 90K 102K 78643K 15256 0 UVM aobj 121 3K 3K 78643K 126 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 19 0 NDP 14 0K 1K 78643K 47 0 temp 67 5914K 6039K 78643K 15815 0 kqueue 12 18K 24K 78643K 120 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> 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 62 0 59 1 0 1 1 0 8 0 rtentry 112 146 0 35 4 0 4 4 0 8 0 unpcb 144 1112 0 859 18 8 10 10 0 8 0 syncache 304 17 0 17 3 2 1 1 0 8 1 tcpqe 32 78 0 78 4 4 0 1 0 8 0 tcpcb 808 440 0 426 20 12 8 8 0 8 6 arp 120 24 0 6 1 0 1 1 0 8 0 inpcb 368 742 0 726 20 12 8 8 0 8 6 nd6 136 35 0 10 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 0 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1256 3 0 3 1 1 0 1 0 8 0 pffrag 232 9 0 5 1 0 1 1 0 482 0 pffrnode 88 9 0 5 1 0 1 1 0 8 0 pffrent 40 22 0 18 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 69 0 27 1 0 1 1 0 8 0 pfstkey 128 69 0 27 2 0 2 2 0 8 0 pfstate 376 69 0 27 5 0 5 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 256 596 0 139 29 0 29 29 0 8 0 art_table 32 597 0 139 4 0 4 4 0 8 0 art_node 16 145 0 44 1 0 1 1 0 8 0 sysvmsgpl 40 79 0 75 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 17 0 7 1 0 1 1 0 8 0 shmpl 112 123 0 5 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2931 0 1475 92 0 92 92 0 8 0 ffsino 272 2931 0 1475 98 0 98 98 0 8 0 nchpl 144 4977 0 4414 63 40 23 63 0 8 0 uvmvnodes 80 3587 0 0 74 0 74 74 0 8 0 vnodes 216 3587 0 0 200 0 200 200 0 8 0 namei 1024 19539 0 19539 2 1 1 2 0 8 1 percpumem 16 56 0 13 1 0 1 1 0 8 0 vmpool 696 11 0 11 2 2 0 1 0 8 0 kstatmem 264 50 0 26 2 0 2 2 0 8 0 scxspl 216 15207 0 15207 13 10 3 8 1 8 3 plimitpl 152 173 0 157 1 0 1 1 0 8 0 sigapl 424 1646 0 1578 9 1 8 8 0 8 0 futexpl 64 9726 0 9721 1 0 1 1 0 8 0 knotepl 120 122 0 0 4 0 4 4 0 8 0 kqueuepl 216 282 0 274 7 6 1 5 0 8 0 pipepl 320 331 0 302 11 3 8 8 0 8 5 fdescpl 496 1608 0 1581 5 1 4 5 0 8 0 filepl 152 10666 0 10183 28 9 19 19 0 8 0 lockfpl 104 3467 0 3465 6 4 2 5 0 8 1 lockfspl 48 420 0 418 1 0 1 1 0 8 0 sessionpl 144 27 0 10 1 0 1 1 0 8 0 pgrppl 48 166 0 149 1 0 1 1 0 8 0 ucredpl 104 554 0 542 1 0 1 1 0 8 0 zombiepl 144 1582 0 1578 1 0 1 1 0 8 0 processpl 1072 1646 0 1578 5 0 5 5 0 8 0 procpl 680 3779 0 3687 10 1 9 9 0 8 0 sosppl 168 1 0 0 1 0 1 1 0 8 0 sockpl 488 1923 0 1650 48 13 35 35 0 8 0 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 12 0 0 2 0 2 2 0 8 0 mcl12k 12288 7 0 0 1 0 1 1 0 8 0 mcl9k 9216 11 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 22 0 0 3 0 3 3 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 263 0 0 33 0 33 33 0 8 0 mtagpl 96 83 0 0 3 0 3 3 0 8 0 mbufpl 256 1032 0 0 63 0 63 63 0 8 0 bufpl 288 5897 0 145 411 0 411 411 0 8 0 anonpl 24 326676 0 311382 119 19 100 101 0 186 5 amapchunkpl 152 48815 0 47944 44 4 40 40 0 158 2 amappl16 200 8893 0 8279 49 16 33 34 0 8 0 amappl15 192 16 0 16 1 1 0 1 0 8 0 amappl14 184 169 0 155 2 1 1 2 0 8 0 amappl13 176 12 0 12 1 1 0 1 0 8 0 amappl12 168 2319 0 2290 3 1 2 2 0 8 0 amappl11 160 66 0 51 1 0 1 1 0 8 0 amappl10 152 29 0 18 1 0 1 1 0 8 0 amappl9 144 171 0 170 2 1 1 1 0 8 0 amappl8 136 249 0 178 3 0 3 3 0 8 0 amappl7 128 70 0 57 2 0 2 2 0 8 0 amappl6 120 266 0 244 3 2 1 3 0 8 0 amappl5 112 236 0 222 1 0 1 1 0 8 0 amappl4 104 618 0 575 3 1 2 3 0 8 0 amappl3 96 9955 0 9871 4 1 3 3 0 8 0 amappl2 88 1904 0 1836 3 1 2 3 0 8 0 amappl1 80 14473 0 13921 23 10 13 23 0 8 0 amappl 88 14663 0 14425 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 72 125 0 5 3 0 3 3 0 8 0 uaddrrnd 24 1619 0 1592 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1619 0 1592 1 0 1 1 0 8 0 vmmpekpl 168 18171 0 18105 3 0 3 3 0 8 0 vmmpepl 168 119479 0 116999 152 29 123 138 0 357 8 vmsppl 464 1618 0 1592 5 1 4 5 0 8 0 rwobjpl 56 41013 0 35580 79 2 77 77 0 8 0 pdppl 4096 3245 0 3184 155 86 69 79 0 8 8 pvpl 32 724572 0 703507 369 69 300 368 0 265 124 pmappl 248 1618 0 1592 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 952 0 115 24 0 24 24 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82c26ff0) 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(ffffffff82c85f30) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c85f30) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff82c85f30) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c85f30) at __mp_lock+0x122 sys/kern/kern_lock.c:147 reaper(ffff8000211b3548) at reaper+0x160 sys/kern/kern_exit.c:454 end trace frame: 0x0, count: 7 ddb{0}> trace x86_ipi_db(ffffffff82c26ff0) 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(ffffffff82c85f30) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c85f30) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff82c85f30) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c85f30) at __mp_lock+0x122 sys/kern/kern_lock.c:147 reaper(ffff8000211b3548) at reaper+0x160 sys/kern/kern_exit.c:454 end trace frame: 0x0, count: -8 ddb{0}> machine ddbcpu 1 Stopped at witness_checkorder+0x1ec: movl 0x8(%r14),%ebx witness_checkorder(fffffd806f0557a8,9,0) at witness_checkorder+0x1ec sys/kern/subr_witness.c:794 mtx_enter(fffffd806f055798) at mtx_enter+0x3e sys/kern/kern_lock.c:265 knote_remove(ffff8000212ae2c0,fffffd806f055798,fffffd806f055820,0,0) at knote_remove+0x20d sys/kern/kern_event.c:1881 knote_fdclose(ffff8000212ae2c0,0) at knote_fdclose+0xae sys/kern/kern_event.c:1934 fdfree(ffff8000212ae2c0) at fdfree+0xdf sys/kern/kern_descrip.c:1196 exit1(ffff8000212ae2c0,0,0,1) at exit1+0x3e4 sys/kern/kern_exit.c:206 sys_exit(ffff8000212ae2c0,ffff80002e42f870,ffff80002e42f8c0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e42f940) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e42f940) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x724e19a82ff0, count: 6 ddb{1}> trace witness_checkorder(fffffd806f0557a8,9,0) at witness_checkorder+0x1ec sys/kern/subr_witness.c:794 mtx_enter(fffffd806f055798) at mtx_enter+0x3e sys/kern/kern_lock.c:265 knote_remove(ffff8000212ae2c0,fffffd806f055798,fffffd806f055820,0,0) at knote_remove+0x20d sys/kern/kern_event.c:1881 knote_fdclose(ffff8000212ae2c0,0) at knote_fdclose+0xae sys/kern/kern_event.c:1934 fdfree(ffff8000212ae2c0) at fdfree+0xdf sys/kern/kern_descrip.c:1196 exit1(ffff8000212ae2c0,0,0,1) at exit1+0x3e4 sys/kern/kern_exit.c:206 sys_exit(ffff8000212ae2c0,ffff80002e42f870,ffff80002e42f8c0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e42f940) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e42f940) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x724e19a82ff0, count: -9