witness: lock order reversal: 1st 0xffff8000299dee30 &cq->cq_mtx (&cq->cq_mtx) 2nd 0xffffffff83915588 &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 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #11 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 sleep_finish+0x2d8 sys/kern/kern_synch.c:369 #4 sys_futex+0xb90 futex_wait sys/kern/sys_futex.c:306 [inline] #4 sys_futex+0xb90 sys/kern/sys_futex.c:155 #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 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 witness_checkorder(ffffffff83915588,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 mtx_enter(ffffffff83915578) at mtx_enter+0x95 sys/kern/kern_lock.c:406 sleep_setup(ffff8000299dee80,220,ffffffff8342dee8) at sleep_setup+0xed sys/kern/kern_synch.c:304 msleep_nsec(ffff8000299dee80,ffff8000299dee20,220,ffffffff8342dee8,ffffffffffffffff) at msleep_nsec+0x10b sys/kern/kern_synch.c:217 dt_ioctl_record_stop(ffff800001589000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(21e5f,81,2000,ffff8000fffeed10) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff8000fffeed10) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff800038feba90) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8065bd57b8,81,fffffd80097fd548,ffff8000fffeed10) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806d0d6208,ffff8000fffeed10) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806d0d6208,ffff8000fffeed10) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806d0d6208,ffff8000fffeed10) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806d0d6208,ffff8000fffeed10) at closef+0x192 sys/kern/kern_descrip.c:1264 syscall(ffff800038febcf0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800038febcf0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x305626c67d0, count: -14 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800038feb760 rbx 0 rdx 0 rcx 0xffff8000fffeed10 rax 0xffffffff8389cff0 cpu_info_full_primary+0x1ff0 r8 0xffff800038feb640 r9 0x8080808080808080 r10 0x48d3f12a4e47b65f r11 0xd9d90736d31e3f55 r12 0xfffffd8003f4ce40 r13 0xfffffd80046f7330 r14 0x3 r15 0xffffffff8341ed46 substchar+0xb9ee rip 0xffffffff81fbe8e5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800038feb750 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=34993 pid=98171 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003bc02558,0xffff8000fffee2c0 process=0xffff8000ffff4008 user=0xffff800038fe6000, vmspace=0xfffffd806c747020 estcpu=34, cpticks=1, pctcpu=0.1, user=0, sys=0, intr=1 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 79416 128328 79292 0 2 0 syz-executor 79416 285353 79292 0 3 0x4000080 kqread syz-executor 5305 210172 80030 0 2 0 syz-executor 5305 474465 80030 0 3 0x4000080 fsleep syz-executor 10789 104424 17273 0 2 0 syz-executor 10789 417775 17273 0 3 0x4000080 fsleep syz-executor 72198 11208 9799 0 2 0 syz-executor 72198 9613 9799 0 3 0x4000080 fsleep syz-executor 3511 414047 62537 0 2 0 syz-executor 3511 21061 62537 0 3 0x4000080 fsleep syz-executor 3511 265806 62537 0 3 0x4000080 kqpoll syz-executor 3511 437389 62537 0 3 0x4000080 fsleep syz-executor 71404 113469 50694 0 2 0 syz-executor 71404 39504 50694 0 3 0x4000000 biowait syz-executor 98171 241093 14291 0 2 0 syz-executor *98171 34993 14291 0 7 0x4000000 syz-executor 98171 291007 14291 0 3 0x4000080 fsleep syz-executor 87352 507381 44780 -1 2 0x10 syz-executor 87352 442702 44780 -1 3 0x4000010 biowait syz-executor 87352 489411 44780 -1 3 0x4000010 inode syz-executor 87352 42255 44780 -1 3 0x4000010 inode syz-executor 87352 491427 44780 -1 2 0x4000010 syz-executor 74678 242885 0 0 3 0x14200 acct acct 44780 281909 79405 0 3 0x82 nanoslp syz-executor 90007 20494 1 0 3 0x100083 ttyin getty 50694 376112 79405 0 3 0x82 nanoslp syz-executor 14291 472396 79405 0 3 0x82 nanoslp syz-executor 9799 27813 79405 0 3 0x82 nanoslp syz-executor 79292 340110 79405 0 3 0x82 nanoslp syz-executor 17273 253440 79405 0 3 0x82 nanoslp syz-executor 80030 260927 79405 0 3 0x82 nanoslp syz-executor 62537 164572 79405 0 3 0x82 nanoslp syz-executor 79405 167088 41422 0 3 0x82 kqread syz-executor 41422 232142 81161 0 3 0x10008a sigsusp ksh 81161 65478 75028 0 3 0x98 kqread sshd-session 75028 379653 32510 0 3 0x92 kqread sshd-session 32510 339691 1 0 3 0x88 kqread sshd 96712 339828 9292 74 3 0x1100092 bpf pflogd 9292 429993 1 0 3 0x80 sbwait pflogd 91948 272456 91103 73 3 0x1100090 kqread syslogd 91103 127035 1 0 3 0x100082 sbwait syslogd 66044 141121 1 0 3 0x100080 kqread resolvd 52218 424673 51219 77 3 0x100092 kqread dhcpleased 3750 207362 51219 77 3 0x100092 kqread dhcpleased 51219 502785 1 0 3 0x80 kqread dhcpleased 82460 331099 0 0 3 0x14200 bored smr 32575 85796 0 0 2 0x14200 zerothread 31759 272213 0 0 3 0x14200 aiodoned aiodoned 53195 104186 0 0 3 0x14200 syncer update 35845 11624 0 0 3 0x14200 cleaner cleaner 64807 84444 0 0 3 0x14200 reaper reaper 59458 99173 0 0 3 0x14200 pgdaemon pagedaemon 78078 76652 0 0 3 0x14200 bored viomb 58002 90648 0 0 3 0x40014200 acpi0 acpi0 871 286372 0 0 7 0x40014200 idle1 89472 106097 0 0 3 0x14200 bored softnet1 50103 329484 0 0 3 0x14200 bored softnet0 19601 414642 0 0 3 0x14200 bored systqmp 75021 419647 0 0 3 0x14200 bored systq 50277 201266 0 0 3 0x14200 tmoslp softclockmp 69546 136702 0 0 3 0x40014200 tmoslp softclock 95210 147274 0 0 3 0x40014200 idle0 1 44407 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &cq->cq_mtx r = 0 (0xffff8000299dee30) #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 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #11 Xsyscall+0x128 Process 71404 (syz-executor) thread 0xffff80003bc02558 (39504) exclusive rrwlock inode r = 0 (0xfffffd8079a0a8f8) #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 98171 (syz-executor) thread 0xffff8000fffeed10 (34993) exclusive rwlock dtlk r = 0 (0xffffffff837bfb18) #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:572 #3 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #3 dtclose+0x109 sys/dev/dt/dt_dev.c:239 #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:775 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838b93c8) #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:775 #5 Xsyscall+0x128 exclusive mutex &cq->cq_mtx r = 0 (0xffff8000299dee30) #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 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #11 Xsyscall+0x128 Process 87352 (syz-executor) thread 0xffff80003bc027f0 (442702) exclusive rrwlock inode r = 0 (0xfffffd8078b5eb50) #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 87352 (syz-executor) thread 0xffff80003bc02028 (489411) exclusive rrwlock inode r = 0 (0xfffffd806ea79b78) #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 uipc_bind+0x328 sys/kern/uipc_usrreq.c:371 #8 sys_bind+0x2f6 sys/kern/uipc_syscalls.c:190 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #10 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11089 12145K 12361K 166960K 14126 0 pcb 18 18K 26K 166960K 784 0 rtable 249 16K 16K 166960K 895 0 pf 36 18K 19K 166960K 276 0 ifaddr 38 7K 9K 166960K 198 0 ifgroup 55 2K 2K 166960K 363 0 sysctl 4 1K 9K 166960K 27 0 counters 70 37K 38K 166960K 460 0 ioctlops 0 0K 4K 166960K 2092 0 iov 0 0K 28K 166960K 157 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1424 90K 90K 166960K 3311 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 10K 166960K 54 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 203 0 dirhash 12 2K 2K 166960K 57 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 240K 166960K 2565 0 sigio 1 0K 0K 166960K 314 0 proc 72 115K 164K 166960K 1008 0 subproc 72 4K 4K 166960K 144 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 319 0 in_multi 77 5K 7K 166960K 294 0 ether_multi 1 0K 0K 166960K 35 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 814 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 7 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 269 160K 175K 166960K 25090 0 UVM aobj 104 22K 22K 166960K 122 0 pinsyscall 43 86K 103K 166960K 3950 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 223 0 NDP 12 0K 2K 166960K 146 0 temp 81 8680K 8756K 166960K 145734 0 kqueue 18 26K 30K 166960K 489 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 120 300 0 296 1 0 1 1 0 8 0 rtentry 176 260 0 167 6 0 6 6 0 8 0 unpcb 144 1892 0 1867 17 15 2 6 0 8 1 syncache 336 10 0 10 6 5 1 1 0 8 1 tcpqe 32 2 0 2 2 2 0 1 0 8 0 tcpcb 736 691 0 686 14 12 2 7 0 8 1 arp 136 40 0 24 1 0 1 1 0 8 0 inpcb 328 3356 0 3346 49 41 8 13 0 8 6 nd6 152 56 0 31 2 0 2 2 0 8 0 pkpcb 40 24 0 24 9 8 1 1 0 8 1 kcovpl 48 16 0 8 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1192 156 0 156 7 6 1 1 0 8 1 pppxif 1504 17 0 17 8 8 0 1 0 8 0 pffrag 232 24 0 15 1 0 1 1 0 482 0 pffrnode 88 21 0 12 1 0 1 1 0 8 0 pffrent 40 47 0 38 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 2 0 2 2 1 1 1 0 8 1 rttmr 136 5 0 5 4 4 0 1 0 8 0 art_heap8 4096 5 0 0 5 0 5 5 0 8 0 art_heap4 256 1214 0 821 42 15 27 31 0 8 2 art_table 40 1219 0 821 5 0 5 5 0 8 0 art_node 32 259 0 176 1 0 1 1 0 8 0 sysvmsgpl 40 46 0 15 1 0 1 1 0 8 0 semupl 112 5 0 5 1 1 0 1 0 8 0 semapl 112 198 0 188 1 0 1 1 0 8 0 shmpl 112 108 0 15 3 0 3 3 0 8 0 dirhash 1024 47 0 30 3 0 3 3 0 8 0 dino2pl 256 6472 0 4956 96 0 96 96 0 8 0 ffsino 296 6472 0 4956 118 0 118 118 0 8 0 nchpl 144 9860 0 8132 65 0 65 65 0 8 0 rtmask 32 25 0 25 8 8 0 1 0 8 0 vnodes 216 5287 0 0 294 0 294 294 0 8 0 namei 1024 34904 0 34902 6 5 1 2 0 8 0 percpumem 16 245 0 195 1 0 1 1 0 8 0 vcpupl 3968 8 0 0 1 0 1 1 0 8 0 vmpool 848 11 0 3 1 0 1 1 0 8 0 kstatmem 264 232 0 204 4 1 3 3 0 8 0 scsiplug 72 15 0 15 8 7 1 1 0 8 1 scxspl 216 94045 0 94043 18 17 1 8 1 8 0 plimitpl 152 865 0 846 2 1 1 2 0 8 0 sigapl 424 2867 0 2818 7 1 6 7 0 8 0 knotepl 120 573 0 0 18 0 18 18 0 8 0 kqueuepl 224 1055 0 1038 13 11 2 5 0 8 1 pipepl 344 415 0 387 9 6 3 9 0 8 0 fdescpl 528 2839 0 2807 3 0 3 3 0 8 0 filepl 160 19382 0 19146 43 30 13 20 0 8 2 lockfpl 104 936 0 933 3 2 1 2 0 8 0 lockfspl 48 350 0 347 1 0 1 1 0 8 0 sessionpl 144 39 0 30 1 0 1 1 0 8 0 pgrppl 48 117 0 100 1 0 1 1 0 8 0 ucredpl 104 3202 0 3188 1 0 1 1 0 8 0 zombiepl 144 3252 0 3252 4 3 1 1 0 8 1 processpl 1232 2867 0 2818 6 2 4 5 0 8 0 procpl 664 6847 0 6784 7 1 6 6 0 8 0 sosppl 176 9 0 9 4 4 0 1 0 8 0 sockpl 752 5810 0 5771 75 63 12 19 0 8 7 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 3 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 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 118 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 42 0 0 5 1 4 5 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 1781 0 0 112 0 112 112 0 8 0 bufpl 280 40203 0 34067 439 0 439 439 0 8 0 anonpl 32 18301 0 0 148 0 148 148 0 246 0 amapchunkpl 152 86219 0 85574 72 43 29 41 0 158 1 amappl16 200 14336 0 13861 104 74 30 45 0 8 0 amappl15 192 13 0 12 2 1 1 1 0 8 0 amappl14 184 21 0 21 1 1 0 1 0 8 0 amappl13 176 530 0 529 1 0 1 1 0 8 0 amappl12 168 3281 0 3238 3 0 3 3 0 8 0 amappl11 160 20 0 20 1 1 0 1 0 8 0 amappl10 152 48 0 34 1 0 1 1 0 8 0 amappl9 144 256 0 255 1 0 1 1 0 8 0 amappl8 136 36 0 32 1 0 1 1 0 8 0 amappl7 128 119 0 118 1 0 1 1 0 8 0 amappl6 120 400 0 387 1 0 1 1 0 8 0 amappl5 112 84 0 72 1 0 1 1 0 8 0 amappl4 104 516 0 486 1 0 1 1 0 8 0 amappl3 96 15214 0 15107 3 0 3 3 0 8 0 amappl2 88 3063 0 2985 2 0 2 2 0 8 0 amappl1 80 21573 0 20974 14 0 14 14 0 8 0 amappl 88 23722 0 23531 5 0 5 5 0 92 0 uvmvnodes 80 202 0 0 5 0 5 5 0 8 0 dma8192 8192 2 0 2 2 2 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 dma256 256 8 0 8 3 3 0 1 0 8 0 dma128 128 260 0 260 4 4 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 20 0 19 1 0 1 1 0 8 0 aobjpl 72 121 0 18 2 0 2 2 0 8 0 uaddrrnd 24 2839 0 2807 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2839 0 2807 1 0 1 1 0 8 0 vmmpekpl 168 22671 0 22617 3 0 3 3 0 8 0 vmmpepl 168 191396 0 188943 158 43 115 123 0 357 0 vmsppl 488 2838 0 2807 7 2 5 5 0 8 0 rwobjpl 80 54196 0 52478 48 7 41 43 0 8 0 pdppl 4096 5707 0 5628 129 50 79 83 0 8 0 pvpl 32 26924 0 0 217 0 217 217 0 265 0 pmappl 256 2849 0 2810 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 450 0 95 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 witness_checkorder(ffffffff83915588,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 mtx_enter(ffffffff83915578) at mtx_enter+0x95 sys/kern/kern_lock.c:406 sleep_setup(ffff8000299dee80,220,ffffffff8342dee8) at sleep_setup+0xed sys/kern/kern_synch.c:304 msleep_nsec(ffff8000299dee80,ffff8000299dee20,220,ffffffff8342dee8,ffffffffffffffff) at msleep_nsec+0x10b sys/kern/kern_synch.c:217 dt_ioctl_record_stop(ffff800001589000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(21e5f,81,2000,ffff8000fffeed10) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff8000fffeed10) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff800038feba90) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8065bd57b8,81,fffffd80097fd548,ffff8000fffeed10) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806d0d6208,ffff8000fffeed10) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806d0d6208,ffff8000fffeed10) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806d0d6208,ffff8000fffeed10) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806d0d6208,ffff8000fffeed10) at closef+0x192 sys/kern/kern_descrip.c:1264 syscall(ffff800038febcf0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800038febcf0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x305626c67d0, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff8000299ddff0) 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(ffff8000299dee20) at mtx_enter+0x377 sys/kern/kern_lock.c:454 clockintr_dispatch(ffff80002a21c930) 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(ffff8000299ddff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -9