login: uvm_fault(0xfffffd806c3f43f0, 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 181901 29365 0 0x2 0 0 syz-executor witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(18) at mtx_enter+0x95 sys/kern/kern_lock.c:406 clockintr_unbind(ffff80000002c430,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff80000167e000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(11e5f,1,2000,ffff80003c4557a0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80003c4557a0) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002a301620) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806e93d998,1,fffffd80097fd410,ffff80003c4557a0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8069eac3a8,ffff80003c4557a0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8069eac3a8,ffff80003c4557a0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8069eac3a8,ffff80003c4557a0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8069eac3a8,ffff80003c4557a0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c4557a0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c4557a0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c4557a0,ffff80002a301990,ffff80002a3018e0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a301990) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a301990) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 end trace frame: 0xffff80002a301a10, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd806c3f43f0, 0x48, 0, 1) -> e ddb{1}> trace witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(18) at mtx_enter+0x95 sys/kern/kern_lock.c:406 clockintr_unbind(ffff80000002c430,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff80000167e000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(11e5f,1,2000,ffff80003c4557a0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80003c4557a0) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002a301620) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806e93d998,1,fffffd80097fd410,ffff80003c4557a0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8069eac3a8,ffff80003c4557a0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8069eac3a8,ffff80003c4557a0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8069eac3a8,ffff80003c4557a0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8069eac3a8,ffff80003c4557a0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c4557a0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c4557a0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c4557a0,ffff80002a301990,ffff80002a3018e0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a301990) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a301990) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c69d00dffc0, count: -15 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a301440 rbx 0 rdx 0 rcx 0xffff80003c4557a0 rax 0xffff8000299ddffe r8 0x90 r9 0x1 r10 0xbd73b790ab1448ab r11 0xd49a9f5824d5536b r12 0xfe r13 0x9 r14 0x28 r15 0 rip 0xffffffff829808e5 witness_checkorder+0xb5 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a3013a0 ss 0x10 witness_checkorder+0xb5: movl 0x20(%r14),%r15d ddb{1}> show proc PROC (syz-executor) tid=17872 pid=34341 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=83, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c4557a0 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003c455a38,0xffff80002a275250 process=0xffff8000ffff1358 user=0xffff80002a2fc000, vmspace=0xfffffd806c3f43f0 estcpu=33, cpticks=22, pctcpu=0.14, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 85814 214825 31897 0 2 0 syz-executor 85814 460075 31897 0 3 0x4000080 fsleep syz-executor 29174 443265 38749 0 2 0 syz-executor 29174 182564 38749 0 3 0x4000080 fsleep syz-executor 29174 145522 38749 0 3 0x4000080 fsleep syz-executor 29174 83244 38749 0 3 0x4000080 fsleep syz-executor 84371 248613 96768 0 3 0x90 nanoslp syz-executor 84371 510652 96768 0 3 0x4000090 ttyin syz-executor 84371 415069 96768 0 3 0x4000090 fsleep syz-executor 84371 497 96768 0 3 0x4000090 fsleep syz-executor 68402 487180 11649 0 2 0 syz-executor 68402 505383 11649 0 3 0x4000080 fsleep syz-executor 68402 239062 11649 0 3 0x4000080 ttyin syz-executor 68402 183919 11649 0 3 0x4000080 fsleep syz-executor 68402 409243 11649 0 3 0x4000080 fsleep syz-executor 28111 196707 1 0 3 0x100083 ttyin getty 40337 252333 0 0 3 0x14200 acct acct 82159 433452 75132 0 3 0x82 wait syz-executor 31897 49479 75132 0 3 0x82 nanoslp syz-executor 96768 205050 75132 0 2 0x3 syz-executor 11649 261360 75132 0 2 0x3 syz-executor 47396 382745 75132 0 3 0x82 nanoslp syz-executor 56235 43183 0 0 3 0x14280 nfsidl nfsio 43617 19463 0 0 3 0x14280 nfsidl nfsio 22353 21019 0 0 3 0x14280 nfsidl nfsio 68186 429553 0 0 3 0x14280 nfsidl nfsio 83721 59029 0 0 3 0x14280 nfsidl nfsio 30503 99883 0 0 3 0x14280 nfsidl nfsio 78218 65095 0 0 3 0x14280 nfsidl nfsio 67303 123739 0 0 3 0x14280 nfsidl nfsio 25838 313423 0 0 3 0x14280 nfsidl nfsio 75077 179363 0 0 3 0x14280 nfsidl nfsio 24913 352187 0 0 3 0x14280 nfsidl nfsio 15358 372742 0 0 3 0x14280 nfsidl nfsio 88769 308267 0 0 3 0x14280 nfsidl nfsio 94782 134893 0 0 3 0x14280 nfsidl nfsio 89832 114660 0 0 3 0x14280 nfsidl nfsio 85139 41190 0 0 3 0x14280 nfsidl nfsio 84160 34139 0 0 3 0x14280 nfsidl nfsio 25805 304126 0 0 3 0x14280 nfsidl nfsio 38749 505678 75132 0 2 0x3 syz-executor 75719 43852 0 0 3 0x14280 nfsidl nfsio 92721 78014 0 0 3 0x14280 nfsidl nfsio 29365 181901 75132 0 7 0x2 syz-executor 17673 227077 75132 0 2 0x3 syz-executor 75132 283542 19459 0 3 0x82 kqread syz-executor 19459 269795 72882 0 3 0x10008a sigsusp ksh 72882 482735 88574 0 3 0x98 kqread sshd-session 88574 411442 90211 0 3 0x92 kqread sshd-session 90211 267907 1 0 3 0x88 kqread sshd 60662 25857 1156 74 3 0x1100092 bpf pflogd 1156 246019 1 0 3 0x80 sbwait pflogd 84685 317795 59832 73 3 0x1100090 kqread syslogd 59832 493531 1 0 3 0x100082 sbwait syslogd 41610 53747 1 0 3 0x100080 kqread resolvd 61591 458257 79601 77 3 0x100092 kqread dhcpleased 47152 440260 79601 77 3 0x100092 kqread dhcpleased 79601 437245 1 0 3 0x80 kqread dhcpleased 39799 440002 0 0 3 0x14200 bored smr 39508 83164 0 0 3 0x14200 pgzero zerothread 16330 301670 0 0 3 0x14200 aiodoned aiodoned 29224 182853 0 0 3 0x14200 syncer update 1864 468594 0 0 3 0x14200 cleaner cleaner 59676 438843 0 0 2 0x14200 reaper 13807 82648 0 0 3 0x14200 pgdaemon pagedaemon 25909 275856 0 0 3 0x14200 bored viomb 45172 94635 0 0 3 0x40014200 acpi0 acpi0 58536 239226 0 0 3 0x40014200 idle1 12099 404201 0 0 3 0x14200 bored softnet1 81989 435206 0 0 3 0x14200 bored softnet0 39903 286978 0 0 3 0x14200 bored systqmp 1955 212337 0 0 3 0x14200 bored systq 59222 485057 0 0 3 0x14200 tmoslp softclockmp 17458 115939 0 0 3 0x40014200 tmoslp softclock 27140 198265 0 0 3 0x40014200 idle0 1 171832 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 29365 (syz-executor) thread 0xffff80002a274fa8 (181901) exclusive rwlock vmmaplk r = 0 (0xfffffd806c3f4120) #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 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5165 #3 uvmspace_fork+0x12b sys/uvm/uvm_map.c:3746 #4 process_new+0x577 sys/kern/kern_fork.c:281 #5 fork1+0x3f6 sys/kern/kern_fork.c:-1 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #7 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xfffffd800b0636b8) #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 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5165 #3 uvmspace_fork+0x44 sys/uvm/uvm_map.c:3737 #4 process_new+0x577 sys/kern/kern_fork.c:281 #5 fork1+0x3f6 sys/kern/kern_fork.c:-1 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #7 Xsyscall+0x128 Process 59676 (reaper) thread 0xffff8000ffffdc90 (438843) exclusive rwlock kmmaplk r = 0 (0xffffffff83975070) #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 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5165 #3 uvm_unmap+0x7d sys/uvm/uvm_map.c:1792 #4 km_free+0x87 sys/uvm/uvm_km.c:714 #5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304 #6 reaper+0x1ca sys/kern/kern_exit.c:493 #7 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11096 12151K 12826K 166960K 14012 0 pcb 19 18K 34K 166960K 929 0 rtable 187 12K 14K 166960K 1155 0 pf 38 18K 82K 166960K 506 0 ifaddr 31 6K 9K 166960K 247 0 ifgroup 55 2K 3K 166960K 433 0 sysctl 4 1K 9K 166960K 21 0 counters 70 37K 38K 166960K 474 0 ioctlops 0 0K 4K 166960K 2136 0 iov 0 0K 52K 166960K 153 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1410 89K 89K 166960K 3496 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 15 0K 1K 166960K 93 0 dirhash 12 2K 2K 166960K 57 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 240K 166960K 2860 0 sigio 0 0K 0K 166960K 198 0 proc 72 115K 163K 166960K 1157 0 subproc 72 4K 4K 166960K 173 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 425 0 in_multi 55 4K 7K 166960K 375 0 ether_multi 1 0K 0K 166960K 39 0 mrt 1 0K 0K 166960K 31 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 127 572K 572K 166960K 127 0 exec 0 0K 1K 166960K 1064 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 259 152K 183K 166960K 26784 0 UVM aobj 69 30K 30K 166960K 84 0 pinsyscall 43 86K 105K 166960K 4381 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 226 0 NDP 12 0K 2K 166960K 177 0 temp 79 8684K 8940K 166960K 156632 0 kqueue 13 20K 32K 166960K 564 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 245 0 242 1 0 1 1 0 8 0 rtentry 176 346 0 287 6 2 4 6 0 8 0 unpcb 144 2091 0 2070 16 14 2 6 0 8 1 syncache 336 17 0 17 6 5 1 1 0 8 1 tcpqe 32 4 0 4 3 2 1 1 0 8 1 tcpcb 736 940 0 934 17 13 4 7 0 8 3 arp 136 65 0 54 1 0 1 1 0 8 0 inpcb 328 3533 0 3519 32 26 6 12 0 8 4 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 2 0 2 1 1 0 1 0 8 0 nd6 152 67 0 54 2 1 1 2 0 8 0 pkpcb 40 12 0 12 5 4 1 1 0 8 1 kcovpl 48 19 0 11 1 0 1 1 0 8 0 ppxss 1192 152 0 152 2 1 1 1 0 8 1 pppxif 1504 22 0 22 4 3 1 1 0 8 1 pfstscr 40 6 0 6 4 4 0 1 0 8 0 pffrag 232 28 0 18 1 0 1 1 0 482 0 pffrnode 88 26 0 16 1 0 1 1 0 8 0 pffrent 40 54 0 44 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 7 0 7 4 3 1 1 0 8 1 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pftag 88 3 0 0 1 0 1 1 0 8 0 pfstitem 24 6 0 2 1 0 1 1 0 8 0 pfstkey 128 22 0 17 1 0 1 1 0 8 0 pfstate 448 11 0 9 1 0 1 1 0 8 0 pfrule 1360 48 0 10 5 1 4 4 0 8 0 rttmr 136 7 0 7 4 4 0 1 0 8 0 art_heap8 4096 5 0 1 5 1 4 4 0 8 0 art_heap4 256 1481 0 1198 42 14 28 29 0 8 6 art_table 40 1486 0 1199 5 0 5 5 0 8 0 art_node 32 343 0 293 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 2 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 87 0 74 1 0 1 1 0 8 0 shmpl 112 61 0 8 2 0 2 2 0 8 0 dirhash 1024 47 0 30 3 0 3 3 0 8 0 dino2pl 256 6900 0 5373 96 0 96 96 0 8 0 ffsino 296 6900 0 5373 119 0 119 119 0 8 0 nchpl 144 10703 0 8970 65 0 65 65 0 8 0 rtmask 32 40 0 40 5 4 1 1 0 8 1 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 38080 0 38080 3 2 1 2 0 8 1 percpumem 16 252 0 202 1 0 1 1 0 8 0 vcpupl 3968 13 0 0 2 0 2 2 0 8 0 vmpool 848 18 0 5 3 1 2 2 0 8 0 kstatmem 264 272 0 242 3 0 3 3 0 8 0 acpiwqpl 32 3 0 3 1 0 1 1 1 8 1 scsiplug 72 15 0 15 5 4 1 1 0 8 1 scxspl 216 90770 0 90770 19 18 1 8 1 8 1 plimitpl 152 878 0 860 1 0 1 1 0 8 0 sigapl 424 3208 0 3139 9 1 8 8 0 8 0 knotepl 120 805 0 0 24 0 24 24 0 8 0 kqueuepl 224 1122 0 1113 14 13 1 5 0 8 0 pipepl 344 703 0 676 20 17 3 12 0 8 0 fdescpl 528 3147 0 3115 3 0 3 3 0 8 0 filepl 160 22600 0 22364 40 24 16 20 0 8 3 lockfpl 104 1146 0 1143 2 1 1 2 0 8 0 lockfspl 48 398 0 395 1 0 1 1 0 8 0 sessionpl 144 50 0 41 1 0 1 1 0 8 0 pgrppl 48 177 0 160 1 0 1 1 0 8 0 ucredpl 104 3806 0 3791 1 0 1 1 0 8 0 zombiepl 144 3402 0 3399 1 0 1 1 0 8 0 processpl 1232 3208 0 3139 8 2 6 6 0 8 0 procpl 664 7706 0 7624 10 2 8 8 0 8 0 sosppl 176 29 0 29 4 3 1 1 0 8 1 sockpl 752 6166 0 6128 55 47 8 18 0 8 3 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 133 0 0 16 0 16 16 0 8 0 mcl2k 2048 48 0 0 5 0 5 5 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 1207 0 0 74 0 74 74 0 8 0 bufpl 280 38648 0 32512 439 0 439 439 0 8 0 anonpl 32 13768 0 0 111 0 111 111 0 246 0 amapchunkpl 152 93321 0 92762 54 26 28 32 0 158 3 amappl16 200 12380 0 12088 80 64 16 30 0 8 0 amappl15 192 2 0 2 1 1 0 1 0 8 0 amappl14 184 6 0 6 1 1 0 1 0 8 0 amappl13 176 569 0 568 1 0 1 1 0 8 0 amappl12 168 3627 0 3585 3 0 3 3 0 8 0 amappl11 160 6 0 6 1 1 0 1 0 8 0 amappl10 152 47 0 33 1 0 1 1 0 8 0 amappl9 144 260 0 260 1 1 0 1 0 8 0 amappl8 136 28 0 25 1 0 1 1 0 8 0 amappl7 128 128 0 126 1 0 1 1 0 8 0 amappl6 120 491 0 477 1 0 1 1 0 8 0 amappl5 112 89 0 78 1 0 1 1 0 8 0 amappl4 104 573 0 542 1 0 1 1 0 8 0 amappl3 96 16787 0 16683 5 2 3 4 0 8 0 amappl2 88 3340 0 3262 2 0 2 2 0 8 0 amappl1 80 25403 0 24809 14 0 14 14 0 8 0 amappl 88 25285 0 25102 5 0 5 5 0 92 0 uvmvnodes 80 217 0 0 5 0 5 5 0 8 0 dma65536 65536 2 0 2 2 2 0 1 0 8 0 dma8192 8192 1 0 1 1 1 0 1 0 8 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 dma512 512 2 0 2 1 1 0 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 257 0 257 5 5 0 1 0 8 0 dma64 64 7 0 7 2 2 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 21 0 20 1 0 1 1 0 8 0 aobjpl 72 83 0 15 2 0 2 2 0 8 0 uaddrrnd 24 3147 0 3115 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3147 0 3115 1 0 1 1 0 8 0 vmmpekpl 168 26773 0 26703 4 0 4 4 0 8 0 vmmpepl 168 208066 0 205844 140 36 104 112 0 357 2 vmsppl 488 3146 0 3115 5 0 5 5 0 8 0 rwobjpl 80 57055 0 55544 41 6 35 35 0 8 0 pdppl 4096 6338 0 6253 141 54 87 87 0 8 2 pvpl 32 21348 0 0 173 0 173 173 0 265 0 pmappl 256 3164 0 3120 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 428 0 97 10 0 10 10 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837f7ff0) 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 __mp_lock(ffffffff8391d2c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff8391d2c0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 __mp_acquire_count(ffffffff8391d2c0,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 pool_get(ffffffff838c1140,1) at pool_get+0x27e sys/kern/subr_pool.c:595 uvm_mapent_alloc(fffffd806c3f4020,0) at uvm_mapent_alloc+0x354 sys/uvm/uvm_map.c:-1 uvm_map_mkentry(fffffd806c3f4020,fffffd8073d313b8,fffffd8073d313b8,1b2f120000,400000,0,ddef9ba3b18a018b,400000) at uvm_map_mkentry+0x87 sys/uvm/uvm_map.c:-1 uvm_mapent_clone(fffffd806c3f4020,1b2f120000,400000,0,1,7,7edece5a55d067b0,1,0,fffffd806cae9650) at uvm_mapent_clone+0xba sys/uvm/uvm_map.c:3475 uvmspace_fork(ffff8000ffff49a8) at uvmspace_fork+0x32a uvm_mapent_share sys/uvm/uvm_map.c:3530 [inline] uvmspace_fork(ffff8000ffff49a8) at uvmspace_fork+0x32a uvm_mapent_forkshared sys/uvm/uvm_map.c:3545 [inline] uvmspace_fork(ffff8000ffff49a8) at uvmspace_fork+0x32a sys/uvm/uvm_map.c:3766 process_new(ffff8000fffecfb0,ffff8000ffff49a8,1) at process_new+0x577 sys/kern/kern_fork.c:281 fork1(ffff80002a274fa8,1,ffffffff82190e60,0,ffff80002a3a2820,0) at fork1+0x3f6 sys/kern/kern_fork.c:-1 syscall(ffff80002a3a28d0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3a28d0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x74a706bebf80, count: 1 ddb{0}> trace x86_ipi_db(ffffffff837f7ff0) 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 __mp_lock(ffffffff8391d2c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff8391d2c0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 __mp_acquire_count(ffffffff8391d2c0,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 pool_get(ffffffff838c1140,1) at pool_get+0x27e sys/kern/subr_pool.c:595 uvm_mapent_alloc(fffffd806c3f4020,0) at uvm_mapent_alloc+0x354 sys/uvm/uvm_map.c:-1 uvm_map_mkentry(fffffd806c3f4020,fffffd8073d313b8,fffffd8073d313b8,1b2f120000,400000,0,ddef9ba3b18a018b,400000) at uvm_map_mkentry+0x87 sys/uvm/uvm_map.c:-1 uvm_mapent_clone(fffffd806c3f4020,1b2f120000,400000,0,1,7,7edece5a55d067b0,1,0,fffffd806cae9650) at uvm_mapent_clone+0xba sys/uvm/uvm_map.c:3475 uvmspace_fork(ffff8000ffff49a8) at uvmspace_fork+0x32a uvm_mapent_share sys/uvm/uvm_map.c:3530 [inline] uvmspace_fork(ffff8000ffff49a8) at uvmspace_fork+0x32a uvm_mapent_forkshared sys/uvm/uvm_map.c:3545 [inline] uvmspace_fork(ffff8000ffff49a8) at uvmspace_fork+0x32a sys/uvm/uvm_map.c:3766 process_new(ffff8000fffecfb0,ffff8000ffff49a8,1) at process_new+0x577 sys/kern/kern_fork.c:281 fork1(ffff80002a274fa8,1,ffffffff82190e60,0,ffff80002a3a2820,0) at fork1+0x3f6 sys/kern/kern_fork.c:-1 syscall(ffff80002a3a28d0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3a28d0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x74a706bebf80, count: -14 ddb{0}> machine ddbcpu 1 Stopped at witness_checkorder+0xb5: movl 0x20(%r14),%r15d witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(18) at mtx_enter+0x95 sys/kern/kern_lock.c:406 clockintr_unbind(ffff80000002c430,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff80000167e000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(11e5f,1,2000,ffff80003c4557a0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80003c4557a0) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002a301620) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806e93d998,1,fffffd80097fd410,ffff80003c4557a0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8069eac3a8,ffff80003c4557a0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8069eac3a8,ffff80003c4557a0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8069eac3a8,ffff80003c4557a0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8069eac3a8,ffff80003c4557a0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c4557a0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c4557a0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c4557a0,ffff80002a301990,ffff80002a3018e0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a301990) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a301990) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 end trace frame: 0xffff80002a301a10, count: 0 ddb{1}> trace witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(18) at mtx_enter+0x95 sys/kern/kern_lock.c:406 clockintr_unbind(ffff80000002c430,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff80000167e000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(11e5f,1,2000,ffff80003c4557a0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80003c4557a0) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002a301620) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806e93d998,1,fffffd80097fd410,ffff80003c4557a0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8069eac3a8,ffff80003c4557a0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8069eac3a8,ffff80003c4557a0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8069eac3a8,ffff80003c4557a0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8069eac3a8,ffff80003c4557a0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c4557a0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c4557a0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c4557a0,ffff80002a301990,ffff80002a3018e0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a301990) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a301990) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c69d00dffc0, count: -15