witness: lock order reversal: 1st 0xffffffff83848e08 &cq->cq_mtx (&cq->cq_mtx) 2nd 0xffffffff83881e10 &sched_lock (&sched_lock) lock order [1] &cq->cq_mtx (&cq->cq_mtx) -> [2] &sched_lock (&sched_lock) #0 mtx_enter+0x4a sys/kern/kern_lock.c:260 #1 sleep_setup+0xc6 sys/kern/kern_synch.c:302 #2 msleep_nsec+0x10b sys/kern/kern_synch.c:217 #3 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 #4 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #4 dtclose+0x109 sys/dev/dt/dt_dev.c:232 #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 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 lock order [2] &sched_lock (&sched_lock) -> [1] &cq->cq_mtx (&cq->cq_mtx) #0 mtx_enter+0x4a sys/kern/kern_lock.c:260 #1 clockintr_cancel+0x2f sys/kern/kern_clockintr.c:323 #2 mi_switch+0x16f sys/kern/sched_bsd.c:378 #3 sleep_finish+0x2d8 sys/kern/kern_synch.c:367 #4 sys_futex+0xa99 futex_wait sys/kern/sys_futex.c:301 [inline] #4 sys_futex+0xa99 sys/kern/sys_futex.c:151 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #6 Xsyscall+0x128 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(ffffffff83881e10,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1 mtx_enter(ffffffff83881e00) at mtx_enter+0x4a sys/kern/kern_lock.c:260 sleep_setup(ffffffff83848e58,220,ffffffff833f8599) at sleep_setup+0xc6 sys/kern/kern_synch.c:302 msleep_nsec(ffffffff83848e58,ffffffff83848df8,220,ffffffff833f8599,ffffffffffffffff) at msleep_nsec+0x10b sys/kern/kern_synch.c:217 dt_ioctl_record_stop(ffff80000146a000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(11e5f,9,2000,ffff80002a2b7248) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,9,2000,ffff80002a2b7248) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c482da0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806f8250e8,9,fffffd80097fb478,ffff80002a2b7248) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd800d014078,ffff80002a2b7248) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd800d014078,ffff80002a2b7248) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd800d014078,ffff80002a2b7248) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd800d014078,ffff80002a2b7248) at closef+0x192 sys/kern/kern_descrip.c:1264 syscall(ffff80003c483000) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c483000) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb7fcd409d00, count: -14 ddb{1}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff80003c482ab0 rbx 0 rdx 0xffff800001476580 rcx 0xffff80002a2b7248 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff80003c482990 r9 0x8080808080808080 r10 0x675f347ce92bb035 r11 0xffbac8c90fcb2cf4 r12 0xfffffd8003f00dc0 r13 0xfffffd80046eea28 r14 0x3 r15 0xffffffff833e07fd substchar+0x9188 rip 0xffffffff82d2ae85 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c482aa0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=97972 pid=55692 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a2b6550,0xffff80002a2b6fc0 process=0xffff80003b824020 user=0xffff80003c47e000, vmspace=0xfffffd806b76e9a8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 55692 462209 38702 0 2 0 syz-executor *55692 97972 38702 0 7 0x4000000 syz-executor 53595 319433 19898 0 7 0 syz-executor 53595 289715 19898 0 3 0x4000080 kqread syz-executor 53595 74463 19898 0 2 0x4000000 syz-executor 40465 241513 48650 0 3 0x80 nanoslp syz-executor 40465 45590 48650 0 3 0x4000080 kqsel syz-executor 40465 178611 48650 0 3 0x4000080 fsleep syz-executor 9009 318471 62168 0 3 0x80 nanoslp syz-executor 9009 180199 62168 0 3 0x4000080 sbwait syz-executor 9009 287339 62168 0 3 0x4000080 fsleep syz-executor 45865 64010 82601 0 3 0x3000 suspend syz-executor 45865 16028 82601 0 3 0x4081000 biowait syz-executor 45865 326275 82601 0 3 0x4081000 inode syz-executor 48650 252045 90058 0 3 0x82 nanoslp syz-executor 93121 391194 90058 0 3 0x82 wait syz-executor 59318 226576 1 0 3 0x80 nanoslp init 82601 367039 90058 0 3 0x82 nanoslp syz-executor 16600 93156 90058 0 3 0x82 nanoslp syz-executor 48756 56423 0 0 3 0x14200 bored sosplice 23263 171254 90058 0 3 0x82 nanoslp syz-executor 38702 394927 90058 0 3 0x82 nanoslp syz-executor 62168 112060 90058 0 3 0x82 nanoslp syz-executor 19898 429869 90058 0 3 0x82 nanoslp syz-executor 90058 227298 57821 0 3 0x82 kqread syz-executor 57821 186186 12193 0 3 0x10008a sigsusp ksh 12193 11232 61802 0 3 0x98 kqread sshd-session 61802 78952 45868 0 3 0x92 kqread sshd-session 45868 304449 1 0 3 0x88 kqread sshd 74683 500193 1777 74 3 0x1100092 bpf pflogd 1777 176743 1 0 3 0x80 sbwait pflogd 88544 145231 30068 73 3 0x1100090 kqread syslogd 30068 121467 1 0 3 0x100082 sbwait syslogd 36770 402664 1 0 3 0x100080 kqread resolvd 27253 438205 72492 77 3 0x100092 kqread dhcpleased 94059 306275 72492 77 3 0x100092 kqread dhcpleased 72492 84166 1 0 3 0x80 kqread dhcpleased 66133 413318 0 0 3 0x14200 bored smr 50999 137949 0 0 3 0x14200 pgzero zerothread 35814 487491 0 0 3 0x14200 aiodoned aiodoned 9286 169529 0 0 3 0x14200 syncer update 1495 40896 0 0 3 0x14200 cleaner cleaner 14082 64144 0 0 3 0x14200 reaper reaper 99486 430128 0 0 3 0x14200 pgdaemon pagedaemon 84639 240254 0 0 3 0x14200 bored viomb 38552 424619 0 0 3 0x40014200 acpi0 acpi0 27482 161214 0 0 3 0x40014200 idle1 78053 336020 0 0 3 0x14200 bored softnet7 36909 270280 0 0 3 0x14200 bored softnet6 87377 426590 0 0 3 0x14200 bored softnet5 83012 353851 0 0 3 0x14200 bored softnet4 17961 85228 0 0 3 0x14200 bored softnet3 26829 332524 0 0 3 0x14200 bored softnet2 57712 54334 0 0 3 0x14200 bored softnet1 16905 398602 0 0 3 0x14200 bored softnet0 35732 243013 0 0 3 0x14200 bored systqmp 18814 308485 0 0 3 0x14200 bored systq 39902 386347 0 0 3 0x14200 tmoslp softclockmp 1781 365951 0 0 3 0x40014200 tmoslp softclock 87208 381790 0 0 3 0x40014200 idle0 1 499521 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 (0xffffffff83848e08) #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+0x13b sys/kern/kern_lock.c:261 #3 clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 #4 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 #5 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #5 dtclose+0x109 sys/dev/dt/dt_dev.c:232 #6 spec_close+0x466 sys/kern/spec_vnops.c:-1 #7 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 #8 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #8 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #9 fdrop+0x121 sys/kern/kern_descrip.c:1280 #10 closef+0x192 sys/kern/kern_descrip.c:1264 #11 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #12 Xsyscall+0x128 Process 55692 (syz-executor) thread 0xffff80002a2b7248 (97972) exclusive rwlock dtlk r = 0 (0xffffffff837835f8) #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 dt_ioctl_record_stop+0x2e sys/dev/dt/dt_dev.c:565 #3 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #3 dtclose+0x109 sys/dev/dt/dt_dev.c:232 #4 spec_close+0x466 sys/kern/spec_vnops.c:-1 #5 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 #6 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #6 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #7 fdrop+0x121 sys/kern/kern_descrip.c:1280 #8 closef+0x192 sys/kern/kern_descrip.c:1264 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8392bc80) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 vn_closefile+0x41 sys/kern/vfs_vnops.c:608 #2 fdrop+0x121 sys/kern/kern_descrip.c:1280 #3 closef+0x192 sys/kern/kern_descrip.c:1264 #4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #5 Xsyscall+0x128 exclusive mutex &cq->cq_mtx r = 0 (0xffffffff83848e08) #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+0x13b sys/kern/kern_lock.c:261 #3 clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 #4 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 #5 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #5 dtclose+0x109 sys/dev/dt/dt_dev.c:232 #6 spec_close+0x466 sys/kern/spec_vnops.c:-1 #7 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 #8 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #8 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #9 fdrop+0x121 sys/kern/kern_descrip.c:1280 #10 closef+0x192 sys/kern/kern_descrip.c:1264 #11 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #12 Xsyscall+0x128 Process 45865 (syz-executor) thread 0xffff80003c43ea90 (16028) exclusive rrwlock inode r = 0 (0xfffffd80638547e8) #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 Process 45865 (syz-executor) thread 0xffff80003c43ed28 (326275) exclusive rrwlock inode r = 0 (0xfffffd8063854c88) #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 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 vn_open+0x15a sys/kern/vfs_vnops.c:140 #8 doopenat+0x35b sys/kern/vfs_syscalls.c:1138 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #10 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10258 11158K 11735K 166960K 13366 0 pcb 17 16K 21K 166960K 811 0 rtable 203 14K 15K 166960K 1163 0 pf 44 19K 67487K 166960K 443 0 ifaddr 38 7K 9K 166960K 280 0 ifgroup 63 2K 3K 166960K 489 0 sysctl 4 1K 9K 166960K 31 0 counters 72 37K 38K 166960K 506 0 ioctlops 0 0K 8K 166960K 2314 0 iov 0 0K 28K 166960K 232 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1416 89K 90K 166960K 3881 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 63 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 376 0 dirhash 12 2K 3K 166960K 81 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 236K 166960K 3941 0 sigio 0 0K 0K 166960K 143 0 proc 66 99K 164K 166960K 1404 0 subproc 72 4K 4K 166960K 220 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 699 0 in_multi 57 4K 7K 166960K 393 0 ether_multi 1 0K 0K 166960K 39 0 mrt 1 0K 0K 166960K 17 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 1024 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 11 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 267 188K 197K 166960K 36351 0 UVM aobj 131 8K 8K 166960K 137 0 pinsyscall 42 84K 101K 166960K 5439 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 219 0 NDP 14 0K 2K 166960K 207 0 temp 90 8652K 8908K 166960K 205619 0 kqueue 14 22K 36K 166960K 794 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 120 629 0 624 10 8 2 3 0 8 1 rtentry 176 418 0 354 5 0 5 5 0 8 0 unpcb 144 2813 0 2795 22 20 2 6 0 8 1 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpcb 736 1175 0 1170 24 23 1 7 0 8 0 arp 128 51 0 40 1 0 1 1 0 8 0 inpcb 328 3859 0 3848 45 42 3 18 0 8 1 nd6 144 59 0 45 1 0 1 1 0 8 0 pkpcb 40 42 0 42 11 10 1 1 0 8 1 kcovpl 48 24 0 16 1 0 1 1 0 8 0 mppekey 1024 2 0 2 1 1 0 1 0 8 0 ppxss 1192 166 0 166 4 3 1 1 0 8 1 pppxif 1504 21 0 21 6 5 1 1 0 8 1 pfstscr 40 6 0 6 2 2 0 1 0 8 0 pffrag 232 22 0 18 1 0 1 1 0 482 0 pffrnode 88 20 0 16 1 0 1 1 0 8 0 pffrent 40 47 0 42 1 0 1 1 0 8 0 pfosfp 40 1428 0 1428 5 5 0 5 0 8 0 pfosfpen 112 1428 0 1428 21 21 0 21 0 8 0 pfrktable 1344 4 0 4 4 3 1 1 0 8 1 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 256 0 151 1 0 1 1 0 8 0 pfstkey 128 272 0 166 4 0 4 4 0 8 0 pfstate 384 262 0 159 12 0 12 12 0 8 0 pfrule 1344 39 0 32 2 1 1 2 0 8 0 rttmr 136 3 0 3 3 3 0 1 0 8 0 art_heap8 4096 7 0 3 7 3 4 5 0 8 0 art_heap4 256 1718 0 1399 50 22 28 42 0 8 1 art_table 40 1725 0 1402 7 1 6 7 0 8 0 art_node 32 410 0 357 2 0 2 2 0 8 0 sysvmsgpl 40 6 0 5 1 0 1 1 0 8 0 semupl 112 3 0 3 3 3 0 1 0 8 0 semapl 112 370 0 360 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 63 0 46 3 0 3 3 0 8 0 dino2pl 256 8696 0 7147 98 0 98 98 0 8 0 ffsino 296 8696 0 7147 120 0 120 120 0 8 0 nchpl 144 14026 0 13436 65 35 30 65 0 8 3 rtmask 32 33 0 33 6 6 0 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 50763 0 50762 8 7 1 2 0 8 0 percpumem 16 268 0 217 1 0 1 1 0 8 0 kstatmem 264 322 0 288 3 0 3 3 0 8 0 scsiplug 72 23 0 23 8 8 0 1 0 8 0 scxspl 216 116273 0 116272 16 15 1 8 1 8 0 plimitpl 152 926 0 905 1 0 1 1 0 8 0 sigapl 424 4242 0 4187 9 1 8 9 0 8 0 knotepl 120 853 0 0 25 0 25 25 0 8 0 kqueuepl 224 1554 0 1542 20 17 3 7 0 8 1 pipepl 344 585 0 557 8 4 4 6 0 8 1 fdescpl 528 4181 0 4149 3 0 3 3 0 8 0 filepl 160 28919 0 28687 44 29 15 21 0 8 3 lockfpl 104 2568 0 2566 5 3 2 2 0 8 1 lockfspl 48 692 0 690 1 0 1 1 0 8 0 sessionpl 144 42 0 34 1 0 1 1 0 8 0 pgrppl 48 211 0 195 1 0 1 1 0 8 0 ucredpl 104 4194 0 4179 1 0 1 1 0 8 0 zombiepl 144 5421 0 5417 3 2 1 1 0 8 0 processpl 1248 4242 0 4187 6 0 6 6 0 8 0 procpl 664 10601 0 10537 8 1 7 8 0 8 0 sosppl 168 31 0 29 8 7 1 1 0 8 0 sockpl 752 7472 0 7438 78 71 7 23 0 8 2 mcl64k 65536 28 0 0 4 0 4 4 0 8 0 mcl16k 16384 2 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 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 114 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 108 0 0 9 1 8 8 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 1166 0 0 71 0 71 71 0 8 0 bufpl 280 49198 0 43055 440 0 440 440 0 8 0 anonpl 32 16549 0 0 134 0 134 134 0 246 0 amapchunkpl 152 128995 0 128106 90 55 35 39 0 158 0 amappl16 200 17414 0 17207 124 94 30 36 0 8 8 amappl15 192 3 0 3 3 3 0 1 0 8 0 amappl14 184 173 0 162 1 0 1 1 0 8 0 amappl13 176 6 0 6 4 4 0 1 0 8 0 amappl12 168 5087 0 5055 3 1 2 2 0 8 0 amappl11 160 54 0 39 1 0 1 1 0 8 0 amappl10 152 11 0 10 1 0 1 1 0 8 0 amappl9 144 272 0 272 1 1 0 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 158 0 147 1 0 1 1 0 8 0 amappl6 120 347 0 343 1 0 1 1 0 8 0 amappl5 112 219 0 208 1 0 1 1 0 8 0 amappl4 104 319 0 301 1 0 1 1 0 8 0 amappl3 96 26468 0 26348 6 2 4 4 0 8 0 amappl2 88 913 0 851 2 0 2 2 0 8 0 amappl1 80 25711 0 25129 14 0 14 14 0 8 0 amappl 88 34759 0 34566 5 0 5 5 0 92 0 dma65536 65536 2 0 2 1 1 0 1 0 8 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma4096 4096 3 0 3 3 3 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 8 0 8 3 3 0 1 0 8 0 dma128 128 264 0 264 8 8 0 1 0 8 0 dma64 64 9 0 9 4 4 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 20 0 19 1 0 1 1 0 8 0 aobjpl 72 136 0 6 3 0 3 3 0 8 0 uaddrrnd 24 4181 0 4149 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4181 0 4149 1 0 1 1 0 8 0 vmmpekpl 168 29709 0 29654 3 0 3 3 0 8 0 vmmpepl 168 270103 0 267856 163 48 115 119 0 357 8 vmsppl 488 4180 0 4149 6 1 5 5 0 8 0 rwobjpl 80 75518 0 68353 159 4 155 155 0 8 0 pdppl 4096 8369 0 8298 117 46 71 85 0 8 0 pvpl 32 25719 0 0 207 0 207 207 0 265 0 pmappl 256 4180 0 4149 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 423 0 114 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(ffffffff83847ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:153 clockintr_dispatch(ffff80002a313d50) at clockintr_dispatch+0x3b1 sys/kern/kern_clockintr.c:215 lapic_clockintr(0,0) at lapic_clockintr+0x51 sys/arch/amd64/amd64/lapic.c:484 Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a end of kernel end trace frame: 0x7a1137867cf0, 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(ffffffff83881e10,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1 mtx_enter(ffffffff83881e00) at mtx_enter+0x4a sys/kern/kern_lock.c:260 sleep_setup(ffffffff83848e58,220,ffffffff833f8599) at sleep_setup+0xc6 sys/kern/kern_synch.c:302 msleep_nsec(ffffffff83848e58,ffffffff83848df8,220,ffffffff833f8599,ffffffffffffffff) at msleep_nsec+0x10b sys/kern/kern_synch.c:217 dt_ioctl_record_stop(ffff80000146a000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(11e5f,9,2000,ffff80002a2b7248) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,9,2000,ffff80002a2b7248) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c482da0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806f8250e8,9,fffffd80097fb478,ffff80002a2b7248) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd800d014078,ffff80002a2b7248) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd800d014078,ffff80002a2b7248) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd800d014078,ffff80002a2b7248) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd800d014078,ffff80002a2b7248) at closef+0x192 sys/kern/kern_descrip.c:1264 syscall(ffff80003c483000) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c483000) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb7fcd409d00, count: -14