witness: lock order reversal: 1st 0xffffffff83810e30 &cq->cq_mtx (&cq->cq_mtx) 2nd 0xffffffff839dfb20 &sched_lock (&sched_lock) lock order [1] &cq->cq_mtx (&cq->cq_mtx) -> [2] &sched_lock (&sched_lock) #0 mtx_enter+0x95 sys/kern/kern_lock.c:406 #1 sleep_setup+0xed sys/kern/kern_synch.c:304 #2 msleep_nsec+0x10b sys/kern/kern_synch.c:217 #3 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 #4 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #4 dtclose+0x109 sys/dev/dt/dt_dev.c:239 #5 spec_close+0x466 sys/kern/spec_vnops.c:-1 #6 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 #7 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #7 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #8 fdrop+0x121 sys/kern/kern_descrip.c:1280 #9 closef+0x192 sys/kern/kern_descrip.c:1264 #10 fdfree+0x116 sys/kern/kern_descrip.c:1195 #11 exit1+0x576 sys/kern/kern_exit.c:215 #12 sys_exit+0x1a sys/kern/kern_exit.c:-1 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #14 Xsyscall+0x128 lock order [2] &sched_lock (&sched_lock) -> [1] &cq->cq_mtx (&cq->cq_mtx) #0 mtx_enter+0x95 sys/kern/kern_lock.c:406 #1 clockintr_cancel+0x2f sys/kern/kern_clockintr.c:323 #2 mi_switch+0x187 sys/kern/sched_bsd.c:376 #3 ast+0x15a mi_ast sys/sys/syscall_mi.h:252 [inline] #3 ast+0x15a sys/arch/amd64/amd64/trap.c:739 #4 intr_user_exit+0x3c Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 witness_checkorder(ffffffff839dfb20,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 mtx_enter(ffffffff839dfb10) at mtx_enter+0x95 sys/kern/kern_lock.c:406 sleep_setup(ffffffff83810e80,220,ffffffff83433841) at sleep_setup+0xed sys/kern/kern_synch.c:304 msleep_nsec(ffffffff83810e80,ffffffff83810e20,220,ffffffff83433841,ffffffffffffffff) at msleep_nsec+0x10b sys/kern/kern_synch.c:217 dt_ioctl_record_stop(ffff80000158f000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(11e5f,81,2000,ffff80003bc162c8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003bc162c8) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c4a0fd0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805bc81948,81,fffffd80097fd478,ffff80003bc162c8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806abeaad8,ffff80003bc162c8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806abeaad8,ffff80003bc162c8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806abeaad8,ffff80003bc162c8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806abeaad8,ffff80003bc162c8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003bc162c8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003bc162c8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003bc162c8,ffff80003c4a1340,ffff80003c4a1290) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c4a1340) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4a1340) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ceed5f75f20, count: -17 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003c4a0ca0 rbx 0 rdx 0 rcx 0xffff80003bc162c8 rax 0xffff8000299ddff0 r8 0xffff80003c4a0b80 r9 0x8080808080808080 r10 0x5d2042d22b434569 r11 0x89a577c8f08be114 r12 0xfffffd8003f48e40 r13 0xfffffd8004736d58 r14 0x3 r15 0xffffffff83421d01 substchar+0x8891 rip 0xffffffff81872d75 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c4a0c90 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=476945 pid=18968 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003bc162c8 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff8000fffef240,0xffff80003bc17a30 process=0xffff80003bc1b510 user=0xffff80003c49c000, vmspace=0xfffffd806c8c9d70 estcpu=36, cpticks=3, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 36242 322292 11679 0 2 0 syz-executor 36242 158424 11679 0 3 0x4000080 fsleep syz-executor 99202 314325 13753 0 3 0x4081000 smrbar syz-executor 99202 220479 13753 0 3 0x4003000 suspend syz-executor 5876 390014 3751 0 3 0x1000080 nanoslp syz-executor 5876 469550 3751 0 3 0x5000080 sbwait syz-executor 5876 177408 3751 0 3 0x5000080 fsleep syz-executor 64482 590 6164 0 3 0x82 nanoslp syz-executor 11679 70185 6164 0 3 0x82 nanoslp syz-executor 13753 287041 6164 0 3 0x82 nanoslp syz-executor 75296 175988 6164 0 3 0x2 biowait syz-executor 99366 484347 6164 0 3 0x2 biowait syz-executor 85014 60922 6164 0 3 0x82 nanoslp syz-executor 3751 133064 6164 0 3 0x82 nanoslp syz-executor 14575 172953 6164 0 3 0x82 nanoslp syz-executor 6164 233903 61453 0 3 0x82 kqread syz-executor 61453 65327 19664 0 3 0x10008a sigsusp ksh 19664 405521 62859 0 3 0x98 kqread sshd-session 62859 250793 18086 0 3 0x92 kqread sshd-session 45346 395519 1 0 3 0x100083 ttyopn getty 18086 169664 1 0 3 0x88 kqread sshd 66566 280205 5116 74 3 0x1100092 bpf pflogd 5116 415861 1 0 3 0x80 sbwait pflogd 29796 332340 42898 73 3 0x1100090 kqread syslogd 42898 163540 1 0 3 0x100082 sbwait syslogd 89433 410979 1 0 3 0x100080 kqread resolvd 44239 374222 80872 77 3 0x100092 kqread dhcpleased 76153 161978 80872 77 3 0x100092 kqread dhcpleased 80872 482199 1 0 3 0x80 kqread dhcpleased 22562 188704 0 0 3 0x14200 bored smr 28531 502679 0 0 2 0x14200 zerothread 71041 106660 0 0 3 0x14200 aiodoned aiodoned 21823 279207 0 0 3 0x14200 syncer update 83378 180011 0 0 3 0x14200 cleaner cleaner 87916 59468 0 0 2 0x14200 reaper 67920 100503 0 0 3 0x14200 pgdaemon pagedaemon 6606 7128 0 0 3 0x14200 bored viomb 97800 337506 0 0 3 0x40014200 acpi0 acpi0 19002 299862 0 0 3 0x40014200 idle1 52013 117571 0 0 3 0x14200 bored softnet1 83498 46845 0 0 3 0x14200 bored softnet0 25929 17671 0 0 3 0x14200 bored systqmp 50699 335939 0 0 3 0x14200 bored systq 85861 357057 0 0 3 0x14200 tmoslp softclockmp 97141 464823 0 0 3 0x40014200 tmoslp softclock 22341 131262 0 0 7 0x40014200 idle0 1 88547 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &cq->cq_mtx r = 0 (0xffffffff83810e30) #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+0x4b4 sys/kern/kern_lock.c:487 #2 clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 #3 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 #4 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #4 dtclose+0x109 sys/dev/dt/dt_dev.c:239 #5 spec_close+0x466 sys/kern/spec_vnops.c:-1 #6 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 #7 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #7 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #8 fdrop+0x121 sys/kern/kern_descrip.c:1280 #9 closef+0x192 sys/kern/kern_descrip.c:1264 #10 fdfree+0x116 sys/kern/kern_descrip.c:1195 #11 exit1+0x576 sys/kern/kern_exit.c:215 #12 sys_exit+0x1a sys/kern/kern_exit.c:-1 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #14 Xsyscall+0x128 Process 99202 (syz-executor) thread 0xffff80003c48fcc0 (314325) exclusive rwlock clonelk r = 0 (0xffffffff837fadb8) #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 if_clone_destroy+0x93 sys/net/if.c:-1 #3 ifioctl+0x59d sys/net/if.c:2159 #4 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #6 Xsyscall+0x128 Process 75296 (syz-executor) thread 0xffff8000fffefca0 (175988) exclusive rrwlock inode r = 0 (0xfffffd80779e6b40) #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+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e8761c8) #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+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 Process 99366 (syz-executor) thread 0xffff8000fffeefa8 (484347) exclusive rrwlock inode r = 0 (0xfffffd8072c0c0e8) #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+0xbd sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80779e60d8) #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+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11088 12264K 12450K 166960K 14322 0 pcb 17 16K 18K 166960K 525 0 rtable 244 15K 15K 166960K 799 0 pf 38 18K 22K 166960K 221 0 ifaddr 42 8K 8K 166960K 164 0 ifgroup 55 2K 2K 166960K 277 0 sysctl 3 1K 9K 166960K 22 0 counters 74 37K 38K 166960K 424 0 ioctlops 0 0K 6K 166960K 1903 0 iov 0 0K 16K 166960K 95 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1428 90K 90K 166960K 2900 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 9K 166960K 33 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 62 0 dirhash 12 2K 2K 166960K 48 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 85K 166960K 1754 0 sigio 0 0K 0K 166960K 22 0 proc 72 115K 164K 166960K 893 0 subproc 72 4K 4K 166960K 137 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 173 0 in_multi 85 6K 7K 166960K 269 0 ether_multi 1 0K 0K 166960K 25 0 mrt 3 0K 0K 166960K 21 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 691 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 249 176K 192K 166960K 17939 0 UVM aobj 43 13K 13K 166960K 50 0 pinsyscall 41 82K 100K 166960K 3115 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 132 0 NDP 13 0K 1K 166960K 115 0 temp 79 8680K 8808K 166960K 75729 0 kqueue 14 22K 32K 166960K 322 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 120 339 0 336 5 2 3 3 0 8 2 rtentry 176 237 0 144 6 0 6 6 0 8 0 unpcb 144 1664 0 1643 15 11 4 6 0 8 3 syncache 336 16 0 16 4 3 1 1 0 8 1 tcpqe 32 4 0 4 2 2 0 1 0 8 0 tcpcb 736 658 0 649 20 16 4 7 0 8 2 arp 136 35 0 19 1 0 1 1 0 8 0 inpcb 328 2180 0 2164 15 8 7 7 0 8 5 nd6 152 54 0 30 2 0 2 2 0 8 0 pkpcb 40 23 0 23 3 2 1 1 0 8 1 kcovpl 48 15 0 7 1 0 1 1 0 8 0 mppekey 1024 2 0 2 2 2 0 1 0 8 0 ppxss 1192 148 0 145 3 2 1 1 0 8 0 pppxif 1504 13 0 13 3 2 1 1 0 8 1 pffrag 232 16 0 7 1 0 1 1 0 482 0 pffrnode 88 14 0 6 1 0 1 1 0 8 0 pffrent 40 32 0 23 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 pfanchor 1288 1 0 1 1 1 0 1 0 8 0 pfstitem 24 114 0 33 1 0 1 1 0 8 0 pfstkey 128 114 0 33 3 0 3 3 0 8 0 pfstate 448 114 0 33 9 0 9 9 0 8 0 pfrule 1344 26 0 20 2 1 1 2 0 8 0 rttmr 136 2 0 2 2 2 0 1 0 8 0 art_heap8 4096 5 0 0 5 0 5 5 0 8 0 art_heap4 256 1079 0 707 36 12 24 31 0 8 0 art_table 40 1084 0 707 5 0 5 5 0 8 0 art_node 32 236 0 155 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 1 0 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 59 0 49 1 0 1 1 0 8 0 shmpl 112 39 0 4 2 1 1 2 0 8 0 dirhash 1024 41 0 24 3 0 3 3 0 8 0 dino2pl 256 4772 0 3254 96 0 96 96 0 8 0 ffsino 296 4772 0 3254 118 0 118 118 0 8 0 nchpl 144 7189 0 6599 64 41 23 64 0 8 0 rtmask 32 22 0 21 4 3 1 1 0 8 0 vnodes 216 5620 0 0 313 0 313 313 0 8 0 namei 1024 24249 0 24248 4 3 1 2 0 8 0 percpumem 16 227 0 175 1 0 1 1 0 8 0 vcpupl 3968 6 0 1 1 0 1 1 0 8 0 vmpool 848 8 0 3 1 0 1 1 0 8 0 kstatmem 264 170 0 142 5 3 2 3 0 8 0 scsiplug 72 3 0 3 3 2 1 1 0 8 1 scxspl 216 46349 0 46347 8 6 2 4 1 8 1 plimitpl 152 592 0 574 1 0 1 1 0 8 0 sigapl 424 2084 0 2038 8 2 6 8 0 8 0 knotepl 120 846 0 0 26 0 26 26 0 8 0 kqueuepl 224 754 0 744 10 5 5 5 0 8 3 pipepl 344 371 0 344 6 3 3 6 0 8 0 fdescpl 528 2043 0 2013 3 0 3 3 0 8 0 filepl 160 14027 0 13798 20 7 13 16 0 8 2 lockfpl 104 691 0 689 1 0 1 1 0 8 0 lockfspl 48 271 0 269 1 0 1 1 0 8 0 sessionpl 144 40 0 31 1 0 1 1 0 8 0 pgrppl 48 79 0 62 1 0 1 1 0 8 0 ucredpl 104 2230 0 2215 1 0 1 1 0 8 0 zombiepl 144 2361 0 2357 1 0 1 1 0 8 0 processpl 1232 2084 0 2038 6 2 4 6 0 8 0 procpl 664 4819 0 4767 8 2 6 8 0 8 0 sosppl 176 8 0 8 3 2 1 1 0 8 1 sockpl 752 4291 0 4251 48 36 12 19 0 8 7 mcl64k 65536 18 0 0 3 1 2 3 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 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 128 0 0 16 0 16 16 0 8 0 mcl2k 2048 33 0 0 5 0 5 5 0 8 0 mtagpl 96 19 0 0 1 0 1 1 0 8 0 mbufpl 256 1216 0 0 76 0 76 76 0 8 0 bufpl 280 18495 0 12359 439 0 439 439 0 8 0 anonpl 32 12750 0 0 103 0 103 103 0 246 0 amapchunkpl 152 61231 0 60732 53 18 35 35 0 158 12 amappl16 200 6238 0 6201 66 47 19 29 0 8 8 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 6 0 5 1 0 1 1 0 8 0 amappl13 176 507 0 506 1 0 1 1 0 8 0 amappl12 168 2475 0 2434 4 1 3 3 0 8 0 amappl11 160 9 0 9 2 2 0 1 0 8 0 amappl10 152 51 0 37 1 0 1 1 0 8 0 amappl9 144 341 0 341 1 1 0 1 0 8 0 amappl8 136 27 0 24 1 0 1 1 0 8 0 amappl7 128 108 0 106 1 0 1 1 0 8 0 amappl6 120 398 0 384 1 0 1 1 0 8 0 amappl5 112 85 0 74 1 0 1 1 0 8 0 amappl4 104 509 0 479 1 0 1 1 0 8 0 amappl3 96 10518 0 10423 6 2 4 4 0 8 0 amappl2 88 2222 0 2146 2 0 2 2 0 8 0 amappl1 80 19147 0 18558 16 1 15 15 0 8 1 amappl 88 16734 0 16565 5 0 5 5 0 92 0 uvmvnodes 80 165 0 0 4 0 4 4 0 8 0 dma4096 4096 2 0 2 2 2 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 8 0 8 3 2 1 1 0 8 1 dma32 32 8 0 8 2 2 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 49 0 7 1 0 1 1 0 8 0 uaddrrnd 24 2043 0 2013 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2043 0 2013 1 0 1 1 0 8 0 vmmpekpl 168 19178 0 19130 3 0 3 3 0 8 0 vmmpepl 168 137157 0 135259 126 23 103 114 0 357 3 vmsppl 488 2042 0 2013 5 0 5 5 0 8 0 rwobjpl 80 38273 0 37126 36 4 32 34 0 8 0 pdppl 4096 4109 0 4037 118 42 76 81 0 8 4 pvpl 32 20711 0 0 167 0 167 167 0 265 0 pmappl 256 2050 0 2016 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 406 0 82 10 0 10 10 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff8380fff0) 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 mtx_enter(ffffffff83810e20) at mtx_enter+0x37b sys/kern/kern_lock.c:454 clockintr_dispatch(ffff80002a1f2cf0) at clockintr_dispatch+0x401 sys/kern/kern_clockintr.c:215 lapic_clockintr(0,0) at lapic_clockintr+0x51 sys/arch/amd64/amd64/lapic.c:482 Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffffffff8380fff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 witness_checkorder(ffffffff839dfb20,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 mtx_enter(ffffffff839dfb10) at mtx_enter+0x95 sys/kern/kern_lock.c:406 sleep_setup(ffffffff83810e80,220,ffffffff83433841) at sleep_setup+0xed sys/kern/kern_synch.c:304 msleep_nsec(ffffffff83810e80,ffffffff83810e20,220,ffffffff83433841,ffffffffffffffff) at msleep_nsec+0x10b sys/kern/kern_synch.c:217 dt_ioctl_record_stop(ffff80000158f000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(11e5f,81,2000,ffff80003bc162c8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003bc162c8) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c4a0fd0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805bc81948,81,fffffd80097fd478,ffff80003bc162c8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806abeaad8,ffff80003bc162c8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806abeaad8,ffff80003bc162c8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806abeaad8,ffff80003bc162c8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806abeaad8,ffff80003bc162c8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003bc162c8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003bc162c8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003bc162c8,ffff80003c4a1340,ffff80003c4a1290) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c4a1340) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4a1340) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ceed5f75f20, count: -17