witness: lock order reversal: 1st 0xffffffff837d8e00 &cq->cq_mtx (&cq->cq_mtx) 2nd 0xffffffff83a03b40 &sched_lock (&sched_lock) lock order [1] &cq->cq_mtx (&cq->cq_mtx) -> [2] &sched_lock (&sched_lock) #0 mtx_enter+0x47 sys/kern/kern_lock.c:238 #1 sleep_setup+0xc6 sys/kern/kern_synch.c:348 #2 msleep+0x114 sys/kern/kern_synch.c:245 #3 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:575 #4 dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #4 dtclose+0x105 sys/dev/dt/dt_dev.c:232 #5 spec_close+0x45f sys/kern/spec_vnops.c:-1 #6 VOP_CLOSE+0x133 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+0x126 sys/kern/kern_descrip.c:1267 #9 closef+0x192 sys/kern/kern_descrip.c:1251 #10 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #11 Xsyscall+0x128 lock order [2] &sched_lock (&sched_lock) -> [1] &cq->cq_mtx (&cq->cq_mtx) #0 mtx_enter+0x47 sys/kern/kern_lock.c:238 #1 clockintr_cancel+0x2f sys/kern/kern_clockintr.c:323 #2 mi_switch+0x165 x86_atomic_clearbits_u32 machine/atomic.h:-1 [inline] #2 mi_switch+0x165 sys/kern/sched_bsd.c:371 #3 sleep_finish+0x24f sys/kern/kern_synch.c:412 #4 sys_futex+0xa58 futex_wait sys/kern/sys_futex.c:304 [inline] #4 sys_futex+0xa58 sys/kern/sys_futex.c:152 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #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(ffffffff83a03b40,9,0) at witness_checkorder+0x10fb sys/kern/subr_witness.c:-1 mtx_enter(ffffffff83a03b30) at mtx_enter+0x47 sys/kern/kern_lock.c:238 sleep_setup(ffffffff837d8e50,220,ffffffff833a63e9) at sleep_setup+0xc6 sys/kern/kern_synch.c:348 msleep(ffffffff837d8e50,ffffffff837d8df0,220,ffffffff833a63e9,0) at msleep+0x114 sys/kern/kern_synch.c:245 dt_ioctl_record_stop(ffff80000148d000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:575 dtclose(21e5f,81,2000,ffff80003c42a548) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80003c42a548) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff800030fdc100) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805f4b3dd0,81,fffffd807f7d2270,ffff80003c42a548) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806cc4cb58,ffff80003c42a548) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806cc4cb58,ffff80003c42a548) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806cc4cb58,ffff80003c42a548) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806cc4cb58,ffff80003c42a548) at closef+0x192 sys/kern/kern_descrip.c:1251 syscall(ffff800030fdc360) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800030fdc360) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x436714d3f80, count: -14 ddb{1}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff800030fdbe10 rbx 0xfffffd8004738c48 rdx 0xffff800001480f00 rcx 0xffff80003c42a548 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff800030fdbcf0 r9 0x8080808080808080 r10 0xd2390a37d94eb0db r11 0x67accbc44e9938d2 r12 0 r13 0xfffffd8003f48300 r14 0x3 r15 0xffffffff rip 0xffffffff8291a315 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800030fdbe00 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=18017 pid=27438 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c42b738,0xffffffff8398f2c0 process=0xffff80003c4aaf58 user=0xffff800030fd7000, vmspace=0xfffffd806be8a3d8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 27438 297597 10537 0 7 0 syz-executor *27438 18017 10537 0 7 0x4000000 syz-executor 89261 299976 40160 0 2 0 syz-executor 89261 143465 40160 0 3 0x4000080 fsleep syz-executor 30502 459016 97500 0 2 0 syz-executor 30502 1474 97500 0 2 0x4000000 syz-executor 62439 323014 37159 -1 2 0x10 syz-executor 62439 174924 37159 -1 3 0x4000090 fsleep syz-executor 41607 117098 99619 0 3 0x80 nanoslp syz-executor 41607 84118 99619 0 3 0x4000080 kqread syz-executor 41607 122370 99619 0 3 0x4000080 fsleep syz-executor 14168 280049 0 0 3 0x14200 acct acct 94615 197951 19066 0 3 0x80 nanoslp syz-executor 94615 521599 19066 0 3 0x4000080 dtread syz-executor 94615 306627 19066 0 3 0x4000080 bell syz-executor 94615 159265 19066 0 3 0x4000080 bell syz-executor 94615 55847 19066 0 3 0x4000080 fsleep syz-executor 34483 477469 0 0 3 0x14280 nfsidl nfsio 3400 362444 0 0 3 0x14280 nfsidl nfsio 20975 161664 0 0 3 0x14280 nfsidl nfsio 16090 154923 0 0 3 0x14280 nfsidl nfsio 60341 150874 0 0 3 0x14280 nfsidl nfsio 40321 347178 0 0 3 0x14280 nfsidl nfsio 11347 512547 0 0 3 0x14280 nfsidl nfsio 44056 202855 0 0 3 0x14280 nfsidl nfsio 5347 270356 0 0 3 0x14280 nfsidl nfsio 26820 498610 0 0 3 0x14280 nfsidl nfsio 45441 25527 0 0 3 0x14280 nfsidl nfsio 86913 411827 0 0 3 0x14280 nfsidl nfsio 13478 520268 0 0 3 0x14280 nfsidl nfsio 8345 181234 0 0 3 0x14280 nfsidl nfsio 27302 369044 0 0 3 0x14280 nfsidl nfsio 3835 103381 0 0 3 0x14280 nfsidl nfsio 35348 229609 0 0 3 0x14280 nfsidl nfsio 50854 405967 0 0 3 0x14280 nfsidl nfsio 40324 189128 0 0 3 0x14280 nfsidl nfsio 83630 316521 0 0 3 0x14280 nfsidl nfsio 92598 320152 0 0 3 0x14200 bored sosplice 99619 108905 22465 0 3 0x82 nanoslp syz-executor 10537 94377 22465 0 3 0x82 nanoslp syz-executor 16084 128456 22465 0 2 0x10000002 syz-executor 37159 254657 22465 0 3 0x82 nanoslp syz-executor 40160 504561 22465 0 3 0x82 nanoslp syz-executor 97500 415369 22465 0 3 0x82 nanoslp syz-executor 19066 376694 22465 0 3 0x82 nanoslp syz-executor 9288 255699 22465 0 3 0x2 biowait syz-executor 22465 240280 25252 0 2 0x2 syz-executor 25252 321108 78484 0 3 0x10008a sigsusp ksh 78484 414896 80968 0 3 0x98 kqread sshd-session 80968 224576 51039 0 3 0x92 kqread sshd-session 90075 309949 1 0 3 0x100083 ttyin getty 51039 114702 1 0 3 0x88 kqread sshd 33065 363968 44678 74 3 0x1100092 bpf pflogd 44678 498934 1 0 3 0x80 sbwait pflogd 69084 439123 23515 73 3 0x1100090 kqread syslogd 23515 199866 1 0 3 0x100082 sbwait syslogd 87357 127916 1 0 3 0x100080 kqread resolvd 94681 38737 74608 77 3 0x100092 kqread dhcpleased 89927 81506 74608 77 3 0x100092 kqread dhcpleased 74608 77134 1 0 3 0x80 kqread dhcpleased 23202 296332 0 0 3 0x14200 bored smr 1845 378390 0 0 2 0x14200 zerothread 21698 293759 0 0 3 0x14200 aiodoned aiodoned 79979 44664 0 0 3 0x14200 syncer update 13567 277472 0 0 3 0x14200 cleaner cleaner 31779 124295 0 0 3 0x14200 reaper reaper 18762 255702 0 0 3 0x14200 pgdaemon pagedaemon 95839 106513 0 0 3 0x14200 bored viomb 50251 155609 0 0 3 0x40014200 acpi0 acpi0 42181 107169 0 0 3 0x40014200 idle1 77217 446058 0 0 3 0x14200 bored softnet3 37455 309180 0 0 3 0x14200 bored softnet2 77460 116158 0 0 3 0x14200 bored softnet1 45356 32202 0 0 3 0x14200 bored softnet0 32928 117333 0 0 3 0x14200 bored systqmp 14057 56973 0 0 3 0x14200 bored systq 85557 450045 0 0 3 0x14200 tmoslp softclockmp 9297 253407 0 0 3 0x40014200 tmoslp softclock 77357 399279 0 0 3 0x40014200 idle0 1 430715 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 (0xffffffff837d8e00) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0xb5 sys/kern/kern_lock.c:239 #3 clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 #4 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:575 #5 dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #5 dtclose+0x105 sys/dev/dt/dt_dev.c:232 #6 spec_close+0x45f sys/kern/spec_vnops.c:-1 #7 VOP_CLOSE+0x133 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+0x126 sys/kern/kern_descrip.c:1267 #10 closef+0x192 sys/kern/kern_descrip.c:1251 #11 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #12 Xsyscall+0x128 Process 27438 (syz-executor) thread 0xffff80003c42a548 (18017) exclusive rwlock dtlk r = 0 (0xffffffff83828a28) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x367 sys/kern/kern_rwlock.c:311 #2 dt_ioctl_record_stop+0x68 sys/dev/dt/dt_dev.c:-1 #3 dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #3 dtclose+0x105 sys/dev/dt/dt_dev.c:232 #4 spec_close+0x45f sys/kern/spec_vnops.c:-1 #5 VOP_CLOSE+0x133 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+0x126 sys/kern/kern_descrip.c:1267 #8 closef+0x192 sys/kern/kern_descrip.c:1251 #9 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838d47b0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 vn_closefile+0x41 sys/kern/vfs_vnops.c:608 #2 fdrop+0x126 sys/kern/kern_descrip.c:1267 #3 closef+0x192 sys/kern/kern_descrip.c:1251 #4 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #5 Xsyscall+0x128 exclusive mutex &cq->cq_mtx r = 0 (0xffffffff837d8e00) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0xb5 sys/kern/kern_lock.c:239 #3 clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 #4 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:575 #5 dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #5 dtclose+0x105 sys/dev/dt/dt_dev.c:232 #6 spec_close+0x45f sys/kern/spec_vnops.c:-1 #7 VOP_CLOSE+0x133 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+0x126 sys/kern/kern_descrip.c:1267 #10 closef+0x192 sys/kern/kern_descrip.c:1251 #11 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #12 Xsyscall+0x128 Process 9288 (syz-executor) thread 0xffff80002a2a5208 (255699) exclusive rrwlock inode r = 0 (0xfffffd8069b729a0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x367 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:606 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:693 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1864 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806f53a898) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x367 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:606 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:693 #6 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x21b sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #10 namei+0x7aa sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1864 #12 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #13 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10214 11080K 11346K 166960K 12403 0 pcb 20 16K 18K 166960K 119 0 rtable 208 8K 9K 166960K 434 0 pf 30 16K 81K 166960K 96 0 ifaddr 35 6K 8K 166960K 71 0 ifgroup 47 2K 3K 166960K 114 0 sysctl 4 1K 9K 166960K 10 0 counters 62 36K 37K 166960K 112 0 ioctlops 0 0K 4K 166960K 1572 0 iov 0 0K 16K 166960K 41 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1398 88K 89K 166960K 1997 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 5K 13K 166960K 21 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 19 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 89K 166960K 779 0 sigio 1 0K 0K 166960K 12 0 proc 72 91K 140K 166960K 621 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 96 0 in_multi 77 5K 7K 166960K 124 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 457 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 234 167K 185K 166960K 8860 0 UVM aobj 21 4K 4K 166960K 21 0 pinsyscall 41 82K 104K 166960K 1893 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 44 0 NDP 10 0K 1K 166960K 47 0 temp 61 8680K 8747K 166960K 27665 0 kqueue 16 26K 30K 166960K 132 0 SYN cache 2 10K 18K 166960K 3 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 120 139 0 136 3 2 1 3 0 8 0 rtentry 176 130 0 38 6 0 6 6 0 8 0 unpcb 144 383 0 355 3 1 2 2 0 8 0 syncache 336 6 0 6 2 1 1 1 0 8 1 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 808 437 0 431 11 8 3 11 0 8 2 arp 128 22 0 6 1 0 1 1 0 8 0 inpcb 384 1023 0 1005 12 4 8 11 0 8 6 nd6 144 28 0 9 1 0 1 1 0 8 0 pkpcb 40 7 0 7 1 0 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 14 0 14 2 1 1 1 0 8 1 pppxif 1504 4 0 4 2 1 1 1 0 8 1 pffrag 232 7 0 0 1 0 1 1 0 482 0 pffrnode 88 6 0 0 1 0 1 1 0 8 0 pffrent 40 42 0 35 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 0 1 0 1 1 0 8 0 pftag 88 1 0 1 1 1 0 1 0 8 0 pfstitem 24 45 0 13 1 0 1 1 0 8 0 pfstkey 128 45 0 13 2 0 2 2 0 8 0 pfstate 384 45 0 13 5 0 5 5 0 8 0 pfrule 1344 23 0 17 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 525 0 150 29 2 27 29 0 8 2 art_table 32 527 0 150 4 0 4 4 0 8 0 art_node 16 128 0 44 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 10 1 0 1 1 0 8 0 semapl 112 16 0 6 1 0 1 1 0 8 0 shmpl 112 18 0 0 1 0 1 1 0 8 0 dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 2773 0 1270 95 0 95 95 0 8 0 ffsino 288 2773 0 1270 109 0 109 109 0 8 0 nchpl 144 3917 0 3363 63 39 24 63 0 8 0 rtmask 32 1 0 1 1 1 0 1 0 8 0 uvmvnodes 80 3241 0 0 67 0 67 67 0 8 0 vnodes 216 3241 0 0 181 0 181 181 0 8 0 namei 1024 12846 0 12846 2 1 1 2 0 8 1 percpumem 16 71 0 25 1 0 1 1 0 8 0 kstatmem 264 60 0 38 3 1 2 3 0 8 0 scsiplug 72 2 0 2 2 2 0 1 0 8 0 scxspl 216 12010 0 12009 10 9 1 8 1 8 0 plimitpl 152 130 0 113 1 0 1 1 0 8 0 sigapl 424 1101 0 1030 10 1 9 9 0 8 0 knotepl 120 815 0 0 25 0 25 25 0 8 0 kqueuepl 224 291 0 279 5 0 5 5 0 8 4 pipepl 336 161 0 134 3 0 3 3 0 8 0 fdescpl 520 1059 0 1029 3 0 3 3 0 8 0 filepl 160 6344 0 6106 16 3 13 16 0 8 3 lockfpl 104 284 0 282 2 1 1 2 0 8 0 lockfspl 48 83 0 81 1 0 1 1 0 8 0 sessionpl 144 25 0 16 1 0 1 1 0 8 0 pgrppl 48 45 0 28 1 0 1 1 0 8 0 ucredpl 104 787 0 772 1 0 1 1 0 8 0 zombiepl 144 1031 0 1030 1 0 1 1 0 8 0 processpl 1208 1101 0 1030 6 0 6 6 0 8 0 procpl 656 2261 0 2180 8 0 8 8 0 8 0 srpgc 96 4 0 4 2 1 1 1 0 8 1 sosppl 168 5 0 5 2 1 1 1 0 8 1 sockpl 728 1573 0 1525 17 8 9 15 0 8 4 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 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 15 0 15 15 0 8 0 mcl2k 2048 35 0 0 4 0 4 4 0 8 0 mtagpl 96 84 0 0 3 0 3 3 0 8 0 mbufpl 256 295 0 0 19 0 19 19 0 8 0 bufpl 280 3635 0 126 251 0 251 251 0 8 0 anonpl 32 7811 0 0 63 0 63 63 0 246 0 amapchunkpl 152 29984 0 29516 34 5 29 34 0 158 6 amappl16 200 3262 0 3229 22 14 8 15 0 8 4 amappl15 192 21 0 21 1 1 0 1 0 8 0 amappl14 184 125 0 113 1 0 1 1 0 8 0 amappl13 176 7 0 6 1 0 1 1 0 8 0 amappl12 168 1716 0 1686 4 1 3 3 0 8 0 amappl11 160 56 0 40 1 0 1 1 0 8 0 amappl10 152 6 0 6 1 1 0 1 0 8 0 amappl9 144 265 0 265 1 1 0 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 109 0 96 1 0 1 1 0 8 0 amappl6 120 209 0 205 1 0 1 1 0 8 0 amappl5 112 128 0 118 1 0 1 1 0 8 0 amappl4 104 342 0 322 1 0 1 1 0 8 0 amappl3 96 5632 0 5524 4 0 4 4 0 8 0 amappl2 88 664 0 600 2 0 2 2 0 8 0 amappl1 80 11351 0 10752 15 1 14 15 0 8 0 amappl 88 8030 0 7870 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 0 1 1 0 8 1 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 20 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1059 0 1029 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1059 0 1029 1 0 1 1 0 8 0 vmmpekpl 168 10148 0 10100 3 0 3 3 0 8 0 vmmpepl 168 72286 0 70343 100 4 96 100 0 357 6 vmsppl 480 1058 0 1029 5 0 5 5 0 8 0 rwobjpl 72 24148 0 19954 77 0 77 77 0 8 0 pdppl 4096 2126 0 2058 106 34 72 84 0 8 4 pvpl 32 15873 0 0 129 0 129 129 0 265 0 pmappl 256 1058 0 1029 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 412 0 50 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff837d7ff0) 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 clockintr_dispatch(ffff80002f7d6830) at clockintr_dispatch+0x3b4 sys/kern/kern_clockintr.c:215 lapic_clockintr(0,0) at lapic_clockintr+0x51 sys/arch/amd64/amd64/lapic.c:489 Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a end of kernel end trace frame: 0x72207d6eeec0, 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(ffffffff83a03b40,9,0) at witness_checkorder+0x10fb sys/kern/subr_witness.c:-1 mtx_enter(ffffffff83a03b30) at mtx_enter+0x47 sys/kern/kern_lock.c:238 sleep_setup(ffffffff837d8e50,220,ffffffff833a63e9) at sleep_setup+0xc6 sys/kern/kern_synch.c:348 msleep(ffffffff837d8e50,ffffffff837d8df0,220,ffffffff833a63e9,0) at msleep+0x114 sys/kern/kern_synch.c:245 dt_ioctl_record_stop(ffff80000148d000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:575 dtclose(21e5f,81,2000,ffff80003c42a548) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80003c42a548) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff800030fdc100) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805f4b3dd0,81,fffffd807f7d2270,ffff80003c42a548) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806cc4cb58,ffff80003c42a548) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806cc4cb58,ffff80003c42a548) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806cc4cb58,ffff80003c42a548) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806cc4cb58,ffff80003c42a548) at closef+0x192 sys/kern/kern_descrip.c:1251 syscall(ffff800030fdc360) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800030fdc360) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x436714d3f80, count: -14