witness: lock order reversal: 1st 0xffffffff83825e30 &cq->cq_mtx (&cq->cq_mtx) 2nd 0xffffffff839567e0 &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(ffffffff839567e0,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 mtx_enter(ffffffff839567d0) at mtx_enter+0x95 sys/kern/kern_lock.c:406 sleep_setup(ffffffff83825e80,220,ffffffff83438853) at sleep_setup+0xed sys/kern/kern_synch.c:304 msleep_nsec(ffffffff83825e80,ffffffff83825e20,220,ffffffff83438853,ffffffffffffffff) at msleep_nsec+0x10b sys/kern/kern_synch.c:217 dt_ioctl_record_stop(ffff800001592000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(11e5f,81,2000,ffff8000fffd7a20) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff8000fffd7a20) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c4768b0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805f93b618,81,fffffd80097fd340,ffff8000fffd7a20) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c916720,ffff8000fffd7a20) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c916720,ffff8000fffd7a20) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c916720,ffff8000fffd7a20) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c916720,ffff8000fffd7a20) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000fffd7a20) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000fffd7a20,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000fffd7a20,ffff80003c476c20,ffff80003c476b70) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c476c20) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c476c20) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77aceb76ac10, count: -17 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003c476580 rbx 0 rdx 0 rcx 0xffff8000fffd7a20 rax 0xffff8000299ddff0 r8 0xffff80003c476460 r9 0x8080808080808080 r10 0x2c96c96384b39af4 r11 0x14668612c809efd1 r12 0xfffffd8003f4ee40 r13 0xfffffd800473cd58 r14 0x3 r15 0xffffffff8341e034 substchar+0xa2d0 rip 0xffffffff82ebfd25 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c476570 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=89841 pid=80644 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000fffd7a20 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff8000fffd6030,0xffff8000fffd7268 process=0xffff800039fdf040 user=0xffff80003c471000, vmspace=0xfffffd80693f97c8 estcpu=36, cpticks=5, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 60815 434752 95267 0 7 0 syz-executor 60815 495355 95267 0 2 0x4000000 syz-executor 81245 276865 34193 0 2 0 syz-executor 81245 305722 34193 0 3 0x4000080 fsleep syz-executor 81245 409239 34193 0 3 0x4000080 fsleep syz-executor 81245 348375 34193 0 2 0x4000000 syz-executor 35113 335163 72371 0 2 0 syz-executor 35113 174042 72371 0 3 0x4000080 fsleep syz-executor 35113 112442 72371 0 3 0x4000080 fsleep syz-executor 35113 252699 72371 0 3 0x4000080 fsleep syz-executor 50475 245952 90366 0 3 0x3000 suspend syz-executor 50475 511159 90366 0 2 0x4081000 syz-executor 1895 212836 16867 0 3 0x82 piperd syz-executor 10913 171094 1 0 3 0x100083 ttyopn getty 90366 319827 16867 0 3 0x82 nanoslp syz-executor 34193 420370 16867 0 3 0x82 nanoslp syz-executor 42430 247639 16867 0 2 0x2 syz-executor 20085 481464 0 0 3 0x14280 nfsidl nfsio 77473 346099 0 0 3 0x14280 nfsidl nfsio 76590 67337 0 0 3 0x14280 nfsidl nfsio 68970 46056 0 0 3 0x14280 nfsidl nfsio 72371 384343 16867 0 3 0x82 nanoslp syz-executor 11940 151989 16867 0 3 0x82 piperd syz-executor 95267 459567 16867 0 3 0x82 nanoslp syz-executor 19974 169733 16867 0 3 0x82 nanoslp syz-executor 16867 490568 45741 0 2 0x2 syz-executor 45741 199443 87806 0 3 0x10008a sigsusp ksh 87806 24997 43609 0 3 0x98 kqread sshd-session 43609 510602 40698 0 3 0x92 kqread sshd-session 40698 181637 1 0 3 0x88 kqread sshd 29879 363027 50007 74 3 0x1100092 bpf pflogd 50007 78588 1 0 3 0x80 sbwait pflogd 65292 74372 69679 73 3 0x1100090 kqread syslogd 69679 387053 1 0 3 0x100082 sbwait syslogd 25134 464734 1 0 3 0x100080 kqread resolvd 49172 405471 47130 77 3 0x100092 kqread dhcpleased 54366 389413 47130 77 3 0x100092 kqread dhcpleased 47130 380723 1 0 3 0x80 kqread dhcpleased 55356 512806 0 0 3 0x14200 bored smr 20822 82608 0 0 2 0x14200 zerothread 62240 36976 0 0 3 0x14200 aiodoned aiodoned 17730 298939 0 0 3 0x14200 syncer update 35802 177299 0 0 3 0x14200 cleaner cleaner 75624 487213 0 0 2 0x14200 reaper 95175 73123 0 0 3 0x14200 pgdaemon pagedaemon 98901 520808 0 0 3 0x14200 bored viomb 82519 423539 0 0 3 0x40014200 acpi0 acpi0 63064 36457 0 0 3 0x40014200 idle1 51732 220621 0 0 3 0x14200 bored softnet1 23353 1286 0 0 3 0x14200 bored softnet0 970 157017 0 0 3 0x14200 bored systqmp 74598 105760 0 0 3 0x14200 bored systq 53378 82957 0 0 3 0x14200 tmoslp softclockmp 99015 313781 0 0 3 0x40014200 tmoslp softclock 56088 287652 0 0 3 0x40014200 idle0 1 400140 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 (0xffffffff83825e30) #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 60815 (syz-executor) thread 0xffff8000fffd4568 (495355) exclusive rwlock vmmaplk r = 0 (0xfffffd806c81e4f0) #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_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x42f sys/arch/amd64/amd64/trap.c:632 #7 recall_trap+0x8 Process 81245 (syz-executor) thread 0xffff80002a260a78 (348375) exclusive rwlock lockflk r = 0 (0xffffffff8389f5c8) #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 lf_advlock+0x227 sys/kern/vfs_lockf.c:260 #3 VOP_ADVLOCK+0x87 sys/kern/vfs_vops.c:623 #4 vn_closefile+0xba sys/kern/vfs_vnops.c:615 #5 fdrop+0x121 sys/kern/kern_descrip.c:1280 #6 closef+0x192 sys/kern/kern_descrip.c:1264 #7 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #7 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #8 Xsyscall+0x128 Process 50475 (syz-executor) thread 0xffff8000fffd6030 (511159) exclusive rrwlock inode r = 0 (0xfffffd80604376b8) #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 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:775 #9 Xsyscall+0x128 Process 42430 (syz-executor) thread 0xffff80002a261770 (247639) exclusive rwlock vmmaplk r = 0 (0xfffffd806c81e6d8) #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 (0xfffffd80693f9310) #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 75624 (reaper) thread 0xffff8000ffffd760 (487213) exclusive rwlock kmmaplk r = 0 (0xffffffff839ade30) #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 11115 12194K 13011K 166960K 19100 0 pcb 18 16K 18K 166960K 957 0 rtable 203 13K 13K 166960K 929 0 pf 40 18K 25K 166960K 408 0 ifaddr 34 7K 8K 166960K 265 0 ifgroup 62 2K 3K 166960K 526 0 sysctl 4 1K 9K 166960K 43 0 counters 72 37K 38K 166960K 566 0 ioctlops 0 0K 4K 166960K 2427 0 iov 0 0K 16K 166960K 240 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1672 105K 105K 166960K 5215 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 10K 166960K 40 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 138 0 dirhash 12 2K 3K 166960K 48 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 240K 166960K 3541 0 sigio 0 0K 0K 166960K 170 0 proc 73 115K 164K 166960K 1104 0 subproc 72 4K 4K 166960K 126 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 582 0 in_multi 58 4K 7K 166960K 292 0 ether_multi 1 0K 0K 166960K 39 0 mrt 2 0K 0K 166960K 29 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 247 1102K 1102K 166960K 247 0 exec 0 0K 1K 166960K 1090 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 249 153K 172K 166960K 33897 0 UVM aobj 16 18K 20K 166960K 19 0 pinsyscall 41 82K 104K 166960K 4849 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 229 0 NDP 13 0K 2K 166960K 194 0 temp 81 8680K 8936K 166960K 175619 0 kqueue 13 20K 32K 166960K 734 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 120 382 0 379 4 3 1 3 0 8 0 rtentry 176 272 0 204 5 0 5 5 0 8 0 unpcb 144 3172 0 3155 21 19 2 10 0 8 1 syncache 336 11 0 11 5 4 1 1 0 8 1 tcpqe 32 6 0 6 3 3 0 1 0 8 0 tcpcb 736 1176 0 1166 19 17 2 7 0 8 0 arp 136 41 0 30 1 0 1 1 0 8 0 inpcb 328 4277 0 4259 32 29 3 12 0 8 0 nd6 152 53 0 36 2 0 2 2 0 8 0 pkpcb 40 54 0 54 6 6 0 1 0 8 0 kcovpl 48 14 0 6 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 185 0 185 3 3 0 1 0 8 0 pppxif 1504 39 0 39 3 3 0 1 0 8 0 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 38 0 21 2 0 2 2 0 482 0 pffrnode 88 31 0 14 1 0 1 1 0 8 0 pffrent 40 77 0 60 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 1 0 1 1 1 0 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pfstitem 24 177 0 87 1 0 1 1 0 8 0 pfstkey 128 178 0 88 4 0 4 4 0 8 0 pfstate 448 177 0 88 12 0 12 12 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 rttmr 136 5 0 5 2 2 0 1 0 8 0 art_heap8 4096 6 0 1 6 1 5 5 0 8 0 art_heap4 256 1162 0 856 35 11 24 29 0 8 0 art_table 40 1168 0 857 5 0 5 5 0 8 0 art_node 32 270 0 210 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 9 1 0 1 1 0 8 0 semupl 112 3 0 3 3 3 0 1 0 8 0 semapl 112 131 0 121 1 0 1 1 0 8 0 shmpl 112 6 0 1 1 0 1 1 0 8 0 dirhash 1024 41 0 24 3 0 3 3 0 8 0 dino2pl 256 8252 0 6736 96 0 96 96 0 8 0 ffsino 296 8252 0 6736 119 1 118 118 0 8 0 nchpl 144 13045 0 11329 64 0 64 64 0 8 0 rtmask 32 39 0 39 4 4 0 1 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 47847 0 47847 1 0 1 1 0 8 1 percpumem 16 298 0 247 1 0 1 1 0 8 0 vcpupl 3968 8 0 0 1 0 1 1 0 8 0 vmpool 848 10 0 2 1 0 1 1 0 8 0 kstatmem 264 336 0 304 3 0 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 18 0 18 5 5 0 1 0 8 0 scxspl 216 79426 0 79426 24 23 1 8 1 8 1 plimitpl 152 941 0 923 1 0 1 1 0 8 0 sigapl 424 3851 0 3801 8 0 8 8 0 8 0 knotepl 120 790 0 0 24 0 24 24 0 8 0 kqueuepl 224 1608 0 1599 18 17 1 5 0 8 0 pipepl 344 580 0 552 15 6 9 9 0 8 6 fdescpl 528 3806 0 3776 3 0 3 3 0 8 0 filepl 160 28610 0 28389 42 27 15 21 0 8 0 lockfpl 104 1941 0 1937 5 4 1 4 0 8 0 lockfspl 48 698 0 695 2 1 1 2 0 8 0 sessionpl 144 40 0 31 1 0 1 1 0 8 0 pgrppl 48 126 0 109 1 0 1 1 0 8 0 ucredpl 104 4447 0 4434 1 0 1 1 0 8 0 zombiepl 144 3850 0 3848 1 0 1 1 0 8 0 processpl 1232 3851 0 3801 6 0 6 6 0 8 0 procpl 664 9645 0 9586 8 1 7 8 0 8 0 sosppl 176 15 0 15 6 5 1 1 0 8 1 sockpl 752 8044 0 8006 63 57 6 26 0 8 0 mcl64k 65536 26 0 0 3 0 3 3 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 123 0 0 16 0 16 16 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 93 0 0 11 0 11 11 0 8 0 mtagpl 96 223 0 0 6 0 6 6 0 8 0 mbufpl 256 662 0 0 41 0 41 41 0 8 0 bufpl 280 30981 0 24844 439 0 439 439 0 8 0 anonpl 32 18758 0 0 151 0 151 151 0 246 0 amapchunkpl 152 117557 0 116978 54 22 32 40 0 158 2 amappl16 200 12999 0 12605 68 38 30 41 0 8 0 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 6 0 6 1 1 0 1 0 8 0 amappl13 176 498 0 496 1 0 1 1 0 8 0 amappl12 168 4268 0 4227 3 0 3 3 0 8 0 amappl11 160 8 0 8 2 2 0 1 0 8 0 amappl10 152 53 0 38 1 0 1 1 0 8 0 amappl9 144 252 0 252 3 3 0 1 0 8 0 amappl8 136 43 0 40 1 0 1 1 0 8 0 amappl7 128 128 0 126 1 0 1 1 0 8 0 amappl6 120 378 0 364 1 0 1 1 0 8 0 amappl5 112 158 0 147 1 0 1 1 0 8 0 amappl4 104 504 0 473 1 0 1 1 0 8 0 amappl3 96 24087 0 23983 5 1 4 4 0 8 0 amappl2 88 658 0 597 2 0 2 2 0 8 0 amappl1 80 25077 0 24491 15 0 15 15 0 8 0 amappl 88 32501 0 32328 5 0 5 5 0 92 0 uvmvnodes 80 205 0 0 5 0 5 5 0 8 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma8192 8192 1 0 1 1 1 0 1 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 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 8 0 8 3 3 0 1 0 8 0 dma128 128 256 0 256 3 3 0 1 0 8 0 dma64 64 7 0 7 2 2 0 1 0 8 0 dma32 32 8 0 8 2 2 0 1 0 8 0 dma16 16 21 0 20 1 0 1 1 0 8 0 aobjpl 72 18 0 3 1 0 1 1 0 8 0 uaddrrnd 24 3806 0 3776 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3806 0 3776 1 0 1 1 0 8 0 vmmpekpl 168 30157 0 30103 3 0 3 3 0 8 0 vmmpepl 168 243973 0 241736 141 32 109 122 0 357 1 vmsppl 488 3805 0 3776 6 1 5 5 0 8 0 rwobjpl 80 62259 0 60728 45 7 38 40 0 8 0 pdppl 4096 7639 0 7564 127 46 81 83 0 8 6 pvpl 32 29094 0 0 237 3 234 234 0 265 0 pmappl 256 3815 0 3778 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 390 0 88 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff83824ff0) 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(ffffffff83825e20) at mtx_enter+0x377 sys/kern/kern_lock.c:454 clockintr_dispatch(ffff800034fd47f0) 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 end of kernel end trace frame: 0x71a11bd2f980, count: -7 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(ffffffff839567e0,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 mtx_enter(ffffffff839567d0) at mtx_enter+0x95 sys/kern/kern_lock.c:406 sleep_setup(ffffffff83825e80,220,ffffffff83438853) at sleep_setup+0xed sys/kern/kern_synch.c:304 msleep_nsec(ffffffff83825e80,ffffffff83825e20,220,ffffffff83438853,ffffffffffffffff) at msleep_nsec+0x10b sys/kern/kern_synch.c:217 dt_ioctl_record_stop(ffff800001592000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(11e5f,81,2000,ffff8000fffd7a20) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff8000fffd7a20) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c4768b0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805f93b618,81,fffffd80097fd340,ffff8000fffd7a20) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c916720,ffff8000fffd7a20) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c916720,ffff8000fffd7a20) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c916720,ffff8000fffd7a20) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c916720,ffff8000fffd7a20) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000fffd7a20) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000fffd7a20,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000fffd7a20,ffff80003c476c20,ffff80003c476b70) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c476c20) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c476c20) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77aceb76ac10, count: -17