uvm_fault(0xfffffd8068bd53f0, 0x48, 0, 1) -> e kernel: page fault trap, code=0 Stopped at witness_checkorder+0xb5: movl 0x20(%r14),%r15d TID PID UID PRFLAGS PFLAGS CPU COMMAND witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(18) at mtx_enter+0x4a sys/kern/kern_lock.c:260 clockintr_unbind(ffff8000014ed030,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff800001490000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(21e5f,81,2000,ffff80003680b250) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80003680b250) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff8000314018b0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8059e288c0,81,fffffd80097fb1a0,ffff80003680b250) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8060de45f0,ffff80003680b250) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8060de45f0,ffff80003680b250) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8060de45f0,ffff80003680b250) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8060de45f0,ffff80003680b250) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003680b250) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003680b250,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003680b250,ffff800031401c20,ffff800031401b70) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800031401c20) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800031401c20) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 end trace frame: 0xffff800031401ca0, count: 0 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(0xfffffd8068bd53f0, 0x48, 0, 1) -> e ddb{0}> trace witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(18) at mtx_enter+0x4a sys/kern/kern_lock.c:260 clockintr_unbind(ffff8000014ed030,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff800001490000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(21e5f,81,2000,ffff80003680b250) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80003680b250) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff8000314018b0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8059e288c0,81,fffffd80097fb1a0,ffff80003680b250) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8060de45f0,ffff80003680b250) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8060de45f0,ffff80003680b250) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8060de45f0,ffff80003680b250) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8060de45f0,ffff80003680b250) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003680b250) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003680b250,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003680b250,ffff800031401c20,ffff800031401b70) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800031401c20) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800031401c20) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bacf4250120, count: -15 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800031401710 rbx 0 rdx 0 rcx 0xffff80003680b250 rax 0xffffffff83845ffe cpu_info_full_primary+0x1ffe r8 0x88 r9 0 r10 0x92e00370ae9ebb65 r11 0x758d9d1103eae2ab r12 0xfe r13 0x9 r14 0x28 r15 0 rip 0xffffffff81abf805 witness_checkorder+0xb5 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800031401670 ss 0x10 witness_checkorder+0xb5: movl 0x20(%r14),%r15d ddb{0}> show proc PROC (syz-executor) tid=238065 pid=76662 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=79, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003680b250 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003680a2c0,0xffffffff8389f548 process=0xffff80003a424020 user=0xffff8000313fc000, vmspace=0xfffffd8068bd53f0 estcpu=29, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 77843 220665 96407 0 2 0xc80 syz-executor 77843 143091 96407 0 3 0x4000080 fsleep syz-executor 77843 102968 96407 0 3 0x4000080 pipewr syz-executor 56084 472449 0 0 3 0x14200 acct acct 55861 198191 1561 0 3 0x80 nanoslp syz-executor 55861 518619 1561 0 3 0x4000080 netcon syz-executor 55861 185348 1561 0 3 0x4000080 fsleep syz-executor 47775 446692 89393 0 2 0xc80 syz-executor 47775 62812 89393 0 3 0x4000080 kqsel syz-executor 47775 393907 89393 0 3 0x4000080 fsleep syz-executor 41572 421907 67097 0 3 0x3000 suspend syz-executor 41572 379551 67097 0 2 0x4081000 syz-executor 87750 346489 0 0 3 0x14200 bored sosplice 40230 301584 70671 0 3 0x82 wait syz-executor 75869 322038 70671 0 3 0x82 nanoslp syz-executor 67097 374514 70671 0 2 0xc82 syz-executor 30006 217242 70671 0 3 0x82 nanoslp syz-executor 89393 56869 70671 0 3 0x82 nanoslp syz-executor 83847 486303 70671 0 3 0x82 wait syz-executor 1561 200691 70671 0 3 0x82 nanoslp syz-executor 96407 188920 70671 0 3 0x82 nanoslp syz-executor 70671 26506 44691 0 3 0x82 kqread syz-executor 44691 197132 44588 0 3 0x10008a sigsusp ksh 44588 100094 821 0 3 0x98 kqread sshd-session 821 104194 36015 0 3 0x92 kqread sshd-session 90584 39390 1 0 3 0x100083 ttyin getty 36015 397908 1 0 3 0x88 kqread sshd 69027 281467 29465 74 3 0x1100092 bpf pflogd 29465 238477 1 0 3 0x80 sbwait pflogd 92862 82858 41558 73 3 0x1100090 kqread syslogd 41558 166992 1 0 3 0x100082 sbwait syslogd 59783 523052 1 0 3 0x100080 kqread resolvd 47465 219001 74147 77 3 0x100092 kqread dhcpleased 67193 330194 74147 77 3 0x100092 kqread dhcpleased 74147 82657 1 0 3 0x80 kqread dhcpleased 37091 492810 0 0 3 0x14200 bored smr 59866 112696 0 0 2 0x14200 zerothread 91203 225770 0 0 3 0x14200 aiodoned aiodoned 54687 355572 0 0 2 0x14e00 update 28636 200469 0 0 3 0x14200 cleaner cleaner 33195 121843 0 0 2 0x14200 reaper 98943 450365 0 0 3 0x14200 pgdaemon pagedaemon 90036 75713 0 0 3 0x14200 bored viomb 16957 368359 0 0 3 0x40014200 acpi0 acpi0 4815 252447 0 0 3 0x40014200 idle1 5157 357628 0 0 3 0x14200 bored softnet7 35126 352551 0 0 3 0x14200 bored softnet6 93518 891 0 0 3 0x14200 bored softnet5 6224 336574 0 0 3 0x14200 bored softnet4 67522 95608 0 0 3 0x14200 bored softnet3 51674 133418 0 0 3 0x14200 bored softnet2 68934 99873 0 0 3 0x14200 bored softnet1 3055 17963 0 0 3 0x14200 bored softnet0 51824 258535 0 0 2 0x14200 systqmp 42851 336499 0 0 3 0x14200 bored systq 56790 23398 0 0 3 0x14200 tmoslp softclockmp 74515 452358 0 0 3 0x40014200 tmoslp softclock 83786 506715 0 0 3 0x40014200 idle0 1 522587 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 1: exclusive mutex &sched_lock r = 0 (0xffffffff83875050) #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_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 wakeup_n+0x54 sys/kern/kern_synch.c:579 #4 uvm_pmr_freepages+0x3eb sys/uvm/uvm_pmemrange.c:1337 #5 uvm_anfree_list+0x1e5 sys/uvm/uvm_anon.c:129 #6 amap_wipeout+0x248 sys/uvm/uvm_amap.c:-1 #7 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #8 uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 #9 exit1+0x6fc sys/kern/kern_exit.c:260 #10 sys_exit+0x1a sys/kern/kern_exit.c:-1 #11 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #12 Xsyscall+0x128 exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff839bec00) #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_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 uvm_pmr_freepages+0x1a8 sys/uvm/uvm_pmemrange.c:-1 #4 uvm_anfree_list+0x1e5 sys/uvm/uvm_anon.c:129 #5 amap_wipeout+0x248 sys/uvm/uvm_amap.c:-1 #6 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #7 uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 #8 exit1+0x6fc sys/kern/kern_exit.c:260 #9 sys_exit+0x1a sys/kern/kern_exit.c:-1 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 Process 41572 (syz-executor) thread 0xffff80003680b780 (379551) exclusive rrwlock inode r = 0 (0xfffffd806a9f48f8) #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+0xa3 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:748 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10229 11124K 11158K 166960K 11576 0 pcb 20 12K 12K 166960K 53 0 rtable 205 7K 7K 166960K 299 0 pf 39 18K 81K 166960K 65 0 ifaddr 41 7K 7K 166960K 55 0 ifgroup 58 2K 2K 166960K 74 0 sysctl 3 1K 9K 166960K 8 0 counters 70 37K 37K 166960K 84 0 ioctlops 0 0K 4K 166960K 1537 0 iov 0 0K 16K 166960K 14 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1346 85K 85K 166960K 1527 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 15 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 89K 166960K 297 0 sigio 0 0K 0K 166960K 37 0 proc 72 115K 180K 166960K 541 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 108 0 in_multi 90 6K 7K 166960K 104 0 ether_multi 1 0K 0K 166960K 1 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 383 0 fusefs mount 1 32K 32K 166960K 1 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 249 152K 161K 166960K 4440 0 UVM aobj 5 2K 2K 166960K 6 0 pinsyscall 42 84K 102K 166960K 1390 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 6 0 NDP 13 0K 1K 166960K 36 0 temp 43 8643K 8707K 166960K 4991 0 kqueue 13 20K 28K 166960K 52 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 48 0 45 1 0 1 1 0 8 0 rtentry 176 98 0 10 5 0 5 5 0 8 0 unpcb 144 138 0 121 2 0 2 2 0 8 1 syncache 336 6 0 6 1 0 1 1 0 8 1 tcpcb 736 57 0 52 1 0 1 1 0 8 0 arp 128 10 0 1 1 0 1 1 0 8 0 inpcb 328 277 0 264 7 0 7 7 0 8 5 nd6 144 17 0 2 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 7 0 6 1 0 1 1 0 8 0 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pffrag 232 2 0 0 1 0 1 1 0 482 0 pffrnode 88 2 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 0 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 31 0 0 1 0 1 1 0 8 0 pfstkey 128 33 0 2 1 0 1 1 0 8 0 pfstate 384 32 0 1 4 0 4 4 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 445 0 42 28 0 28 28 0 8 1 art_table 40 448 0 42 5 0 5 5 0 8 0 art_node 32 98 0 19 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 2 1 0 1 1 0 8 0 semapl 112 13 0 3 1 0 1 1 0 8 0 shmpl 112 3 0 1 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 1921 0 409 95 0 95 95 0 8 0 ffsino 296 1921 0 409 117 0 117 117 0 8 0 nchpl 144 2336 0 638 63 0 63 63 0 8 0 uvmvnodes 80 2062 0 0 43 0 43 43 0 8 0 vnodes 216 2062 0 0 115 0 115 115 0 8 0 namei 1024 7337 0 7337 2 0 2 2 0 8 2 percpumem 16 57 0 7 1 0 1 1 0 8 0 kstatmem 264 42 0 14 3 0 3 3 0 8 1 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 11071 0 11071 9 1 8 8 1 8 8 plimitpl 152 47 0 28 1 0 1 1 0 8 0 sigapl 424 604 0 548 7 0 7 7 0 8 0 knotepl 120 314 0 0 10 0 10 10 0 8 0 kqueuepl 224 67 0 57 1 0 1 1 0 8 0 pipepl 344 116 0 88 3 0 3 3 0 8 0 fdescpl 528 580 0 549 3 0 3 3 0 8 0 filepl 160 2602 0 2339 14 0 14 14 0 8 2 lockfpl 104 71 0 66 1 0 1 1 0 8 0 lockfspl 48 32 0 27 1 0 1 1 0 8 0 sessionpl 144 25 0 16 1 0 1 1 0 8 0 pgrppl 48 37 0 20 1 0 1 1 0 8 0 ucredpl 104 393 0 380 1 0 1 1 0 8 0 zombiepl 144 553 0 548 1 0 1 1 0 8 0 processpl 1232 604 0 548 5 0 5 5 0 8 0 procpl 664 903 0 837 7 0 7 7 0 8 1 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 752 471 0 437 11 0 11 11 0 8 6 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 117 0 0 15 0 15 15 0 8 0 mcl2k 2048 28 0 0 4 0 4 4 0 8 0 mtagpl 96 47 0 0 2 0 2 2 0 8 0 mbufpl 256 198 0 0 13 0 13 13 0 8 0 bufpl 280 4665 0 126 325 0 325 325 0 8 0 anonpl 32 13097 0 0 106 0 106 106 0 246 0 amapchunkpl 152 13299 0 12758 30 2 28 28 0 158 5 amappl16 200 2420 0 2165 34 2 32 32 0 8 12 amappl15 192 5 0 5 2 1 1 1 0 8 1 amappl14 184 116 0 104 1 0 1 1 0 8 0 amappl13 176 7 0 6 1 0 1 1 0 8 0 amappl12 168 1222 0 1191 3 1 2 2 0 8 0 amappl11 160 49 0 35 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 270 0 270 1 1 0 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 115 0 103 1 0 1 1 0 8 0 amappl6 120 177 0 174 1 0 1 1 0 8 0 amappl5 112 197 0 188 1 0 1 1 0 8 0 amappl4 104 302 0 283 1 0 1 1 0 8 0 amappl3 96 2327 0 2207 4 0 4 4 0 8 0 amappl2 88 650 0 589 2 0 2 2 0 8 0 amappl1 80 9490 0 8890 16 0 16 16 0 8 0 amappl 88 3730 0 3553 5 0 5 5 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 128 254 0 254 2 1 1 1 0 8 1 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 5 0 1 1 0 1 1 0 8 0 uaddrrnd 24 580 0 549 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 580 0 549 1 0 1 1 0 8 0 vmmpekpl 168 6598 0 6561 2 0 2 2 0 8 0 vmmpepl 168 44189 0 41972 114 0 114 114 0 357 7 vmsppl 488 579 0 548 5 0 5 5 0 8 0 rwobjpl 80 17159 0 13927 73 0 73 73 0 8 3 pdppl 4096 1167 0 1096 99 28 71 83 0 8 0 pvpl 32 21054 0 0 172 1 171 171 0 265 1 pmappl 256 579 0 548 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 273 0 30 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(18) at mtx_enter+0x4a sys/kern/kern_lock.c:260 clockintr_unbind(ffff8000014ed030,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff800001490000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(21e5f,81,2000,ffff80003680b250) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80003680b250) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff8000314018b0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8059e288c0,81,fffffd80097fb1a0,ffff80003680b250) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8060de45f0,ffff80003680b250) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8060de45f0,ffff80003680b250) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8060de45f0,ffff80003680b250) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8060de45f0,ffff80003680b250) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003680b250) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003680b250,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003680b250,ffff800031401c20,ffff800031401b70) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800031401c20) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800031401c20) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bacf4250120, count: -15 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299edff0) 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 uvm_pageclean(fffffd8008263d28) at uvm_pageclean+0x32c uvm_pagedequeue sys/uvm/uvm_page.c:1326 [inline] uvm_pageclean(fffffd8008263d28) at uvm_pageclean+0x32c sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8008263d28) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvm_anfree_list(fffffd8061104270,0) at uvm_anfree_list+0x1e5 sys/uvm/uvm_anon.c:129 amap_wipeout(fffffd8060e04e78) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:-1 uvm_unmap_detach(ffff800039c1b140,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd806b9923e8) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 exit1(ffff800033808020,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff800033808020,ffff800039c1b310,ffff800039c1b260) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800039c1b310) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800039c1b310) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78b1eda0e450, count: 2 ddb{1}> trace x86_ipi_db(ffff8000299edff0) 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 uvm_pageclean(fffffd8008263d28) at uvm_pageclean+0x32c uvm_pagedequeue sys/uvm/uvm_page.c:1326 [inline] uvm_pageclean(fffffd8008263d28) at uvm_pageclean+0x32c sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8008263d28) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvm_anfree_list(fffffd8061104270,0) at uvm_anfree_list+0x1e5 sys/uvm/uvm_anon.c:129 amap_wipeout(fffffd8060e04e78) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:-1 uvm_unmap_detach(ffff800039c1b140,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd806b9923e8) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 exit1(ffff800033808020,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff800033808020,ffff800039c1b310,ffff800039c1b260) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800039c1b310) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800039c1b310) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78b1eda0e450, count: -13