uvm_fault(0xfffffd806c8ca018, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND 504128 24037 60929 0x10 0 1 syz-executor dt_ioctl_record_stop(ffff800001589000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(21e5f,1,2000,ffff80003a7ccd18) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,1,2000,ffff80003a7ccd18) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff800038bc92d0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805cef1a78,1,fffffd80097fd618,ffff80003a7ccd18) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c374e18,ffff80003a7ccd18) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c374e18,ffff80003a7ccd18) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c374e18,ffff80003a7ccd18) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffffd806c374e18,ffff80003a7ccd18) at closef+0x192 sys/kern/kern_descrip.c:1265 fdfree(ffff80003a7ccd18) at fdfree+0x116 sys/kern/kern_descrip.c:1196 exit1(ffff80003a7ccd18,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003a7ccd18,ffff800038bc9640,ffff800038bc9590) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800038bc9640) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800038bc9640) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78930bfa09e0, count: 3 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd806c8ca018, 0x0, 0, 1) -> e ddb{0}> trace dt_ioctl_record_stop(ffff800001589000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(21e5f,1,2000,ffff80003a7ccd18) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,1,2000,ffff80003a7ccd18) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff800038bc92d0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805cef1a78,1,fffffd80097fd618,ffff80003a7ccd18) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c374e18,ffff80003a7ccd18) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c374e18,ffff80003a7ccd18) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c374e18,ffff80003a7ccd18) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffffd806c374e18,ffff80003a7ccd18) at closef+0x192 sys/kern/kern_descrip.c:1265 fdfree(ffff80003a7ccd18) at fdfree+0x116 sys/kern/kern_descrip.c:1196 exit1(ffff80003a7ccd18,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003a7ccd18,ffff800038bc9640,ffff800038bc9590) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800038bc9640) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800038bc9640) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78930bfa09e0, count: -12 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800038bc9200 rbx 0x1 rdx 0 rcx 0xffff80003a7ccd18 rax 0xffffffff838e2980 dt_prov_static r8 0 r9 0x1 r10 0x7433e7563f0ffd1c r11 0x9da292f821bd1d r12 0 r13 0 r14 0 r15 0xffff800000c4a800 rip 0xffffffff813b0388 dt_ioctl_record_stop+0x108 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff800038bc91d0 ss 0 dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 ddb{0}> show proc PROC (syz-executor) tid=512335 pid=72465 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=77, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003a7ccd18 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003a7cc020,0xffff8000fffef250 process=0xffff80003abd5830 user=0xffff800038bc4000, vmspace=0xfffffd806c8ca018 estcpu=36, cpticks=6, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 65156 138785 61676 0 2 0 syz-executor 65156 270876 61676 0 3 0x4000080 kqsel syz-executor 81272 125872 23021 0 2 0 syz-executor 81272 362235 23021 0 3 0x4000080 fsleep syz-executor 65584 220716 12501 0 2 0 syz-executor 65584 155503 12501 0 3 0x4000080 fsleep syz-executor 24037 504128 15197 60929 7 0x10 syz-executor 24037 346723 15197 60929 3 0x4000090 fsleep syz-executor 96784 399482 44093 0 3 0x80 nanoslp syz-executor 96784 369119 44093 0 3 0x4000080 bpf syz-executor 96784 216131 44093 0 3 0x4000080 fsleep syz-executor 96784 293493 44093 0 3 0x4000080 fsleep syz-executor 50907 228379 31805 0 3 0x3000 suspend syz-executor 50907 511352 31805 0 2 0x4081000 syz-executor 50907 340789 31805 0 3 0x4081000 inode syz-executor 50907 32351 31805 0 3 0x4081000 inode syz-executor 15197 141784 23674 0 3 0x82 nanoslp syz-executor 31963 286426 1 0 3 0x100083 ttyin getty 23021 120595 23674 0 2 0xc82 syz-executor 59104 13259 23674 0 2 0xc82 syz-executor 12501 445014 23674 0 3 0x82 nanoslp syz-executor 31805 306808 23674 0 3 0x82 nanoslp syz-executor 44093 506480 23674 0 3 0x82 nanoslp syz-executor 25396 275448 23674 0 2 0x2 syz-executor 61676 417834 23674 0 3 0x82 nanoslp syz-executor 23674 401775 1 0 3 0x82 kqread syz-executor 11288 282690 69981 0 3 0x98 kqread sshd-session 69981 421589 1 0 3 0x92 kqread sshd-session 4132 511353 1 74 3 0x1100092 bpf pflogd 53434 354880 1 73 3 0x1100090 kqread syslogd 4405 74970 0 0 3 0x14200 bored smr 59709 94298 0 0 2 0x14200 zerothread 22152 390737 0 0 3 0x14200 aiodoned aiodoned 9732 185442 0 0 3 0x14200 syncer update 34003 184368 0 0 3 0x14200 cleaner cleaner 37566 27220 0 0 3 0x14200 reaper reaper 68953 270398 0 0 3 0x14200 pgdaemon pagedaemon 99664 198643 0 0 3 0x14200 bored viomb 77749 509907 0 0 3 0x40014200 acpi0 acpi0 34468 503511 0 0 3 0x40014200 idle1 78600 216743 0 0 3 0x14200 bored softnet1 17004 432265 0 0 2 0x14200 softnet0 36942 98464 0 0 3 0x14200 bored systqmp 19835 177394 0 0 3 0x14200 bored systq 45069 242252 0 0 3 0x14200 tmoslp softclockmp 53535 438434 0 0 3 0x40014200 tmoslp softclock 24634 71150 0 0 3 0x40014200 idle0 1 404036 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 24037 (syz-executor) thread 0xffff80003a7cd778 (504128) exclusive rwlock uobjlk r = 0 (0xfffffd806d827dc8) #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 uvm_fault+0x1e5 sys/uvm/uvm_fault.c:649 #3 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #4 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806c8caaa0) #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+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 Process 50907 (syz-executor) thread 0xffff8000fffeed10 (511352) exclusive rrwlock inode r = 0 (0xfffffd806c844310) #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+0x2bd sys/kern/sys_generic.c:384 #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:783 #9 Xsyscall+0x128 Process 50907 (syz-executor) thread 0xffff8000fffee2b0 (340789) exclusive rrwlock inode r = 0 (0xfffffd806c35d7b8) #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 domknodat+0xb4 sys/kern/vfs_syscalls.c:1611 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 Process 25396 (syz-executor) thread 0xffff8000ffffd9f8 (275448) exclusive rrwlock inode r = 0 (0xfffffd806c35dd80) #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+0x98a sys/kern/vfs_lookup.c:567 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1887 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d6bb7a0) #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:1887 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11076 12120K 12379K 166960K 12500 0 pcb 17 14K 16K 166960K 148 0 rtable 213 7K 8K 166960K 436 0 pf 39 18K 20K 166960K 67 0 ifaddr 44 7K 8K 166960K 63 0 ifgroup 59 2K 2K 166960K 76 0 sysctl 2 1K 9K 166960K 7 0 counters 72 37K 37K 166960K 92 0 ioctlops 0 0K 4K 166960K 1621 0 iov 0 0K 28K 166960K 13 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1298 82K 82K 166960K 1621 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 50 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 434 0 proc 21 33K 164K 166960K 622 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 0 0K 0K 166960K 19 0 in_multi 94 6K 7K 166960K 123 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 12 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 476 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 181 114K 186K 166960K 5614 0 UVM aobj 15 4K 4K 166960K 15 0 pinsyscall 27 54K 104K 166960K 1588 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 21 0 NDP 13 0K 2K 166960K 37 0 temp 43 9079K 9180K 166960K 14895 0 kqueue 5 8K 24K 166960K 89 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 42 0 42 3 2 1 1 0 8 1 rtentry 176 132 0 42 6 0 6 6 0 8 0 unpcb 144 233 0 223 5 4 1 3 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 56 0 52 1 0 1 1 0 8 0 arp 136 21 0 4 1 0 1 1 0 8 0 inpcb 328 316 0 306 6 5 1 6 0 8 0 nd6 152 28 0 7 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 1 0 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 8 0 8 1 1 0 1 0 8 0 pppxif 1576 1 0 1 1 1 0 1 0 8 0 pffrag 232 4 0 1 1 0 1 1 0 482 0 pffrnode 88 4 0 1 1 0 1 1 0 8 0 pffrent 40 7 0 4 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 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 0 1 0 1 1 0 8 0 pfstitem 24 43 0 0 1 0 1 1 0 8 0 pfstkey 128 43 0 0 2 0 2 2 0 8 0 pfstate 448 43 0 0 5 0 5 5 0 8 0 pfrule 1360 22 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 578 0 177 31 3 28 31 0 8 0 art_table 40 579 0 177 5 0 5 5 0 8 0 art_node 32 132 0 52 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 2 2 0 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 46 0 36 1 0 1 1 0 8 0 shmpl 112 12 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2093 0 621 93 0 93 93 0 8 0 ffsino 296 2093 0 621 114 0 114 114 0 8 0 nchpl 144 2671 0 966 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 1 0 1 0 8 0 vnodes 216 2321 0 0 129 0 129 129 0 8 0 namei 1024 8488 0 8486 4 3 1 3 0 8 0 percpumem 16 61 0 10 1 0 1 1 0 8 0 kstatmem 264 42 0 12 3 1 2 3 0 8 0 scsiplug 72 4 0 4 1 1 0 1 0 8 0 scxspl 216 20808 0 20808 9 8 1 7 1 8 1 plimitpl 152 82 0 65 1 0 1 1 0 8 0 sigapl 424 732 0 693 7 1 6 7 0 8 0 knotepl 120 257 0 0 8 0 8 8 0 8 0 kqueuepl 224 183 0 178 5 4 1 5 0 8 0 pipepl 344 176 0 148 6 2 4 6 0 8 0 fdescpl 528 716 0 693 3 0 3 3 0 8 0 filepl 160 3408 0 3209 14 3 11 14 0 8 0 lockfpl 104 112 0 111 1 0 1 1 0 8 0 lockfspl 48 55 0 54 1 0 1 1 0 8 0 sessionpl 144 31 0 25 1 0 1 1 0 8 0 pgrppl 48 40 0 26 1 0 1 1 0 8 0 ucredpl 104 419 0 409 1 0 1 1 0 8 0 zombiepl 144 715 0 713 1 0 1 1 0 8 0 processpl 1232 732 0 693 5 1 4 5 0 8 0 procpl 664 1194 0 1145 6 1 5 6 0 8 0 sosppl 176 3 0 3 1 1 0 1 0 8 0 sockpl 752 602 0 582 17 14 3 10 0 8 0 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 118 0 0 15 0 15 15 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mtagpl 96 8 0 0 1 0 1 1 0 8 0 mbufpl 256 177 0 0 12 0 12 12 0 8 0 bufpl 280 10066 0 3936 439 0 439 439 0 8 0 anonpl 32 11075 0 0 90 0 90 90 0 246 0 amapchunkpl 152 17987 0 17348 50 23 27 35 0 158 0 amappl16 200 3035 0 2929 23 13 10 23 0 8 0 amappl15 192 69 0 69 1 1 0 1 0 8 0 amappl14 184 444 0 443 1 0 1 1 0 8 0 amappl13 176 119 0 114 1 0 1 1 0 8 0 amappl12 168 972 0 950 2 0 2 2 0 8 0 amappl11 160 3 0 3 1 1 0 1 0 8 0 amappl10 152 67 0 63 1 0 1 1 0 8 0 amappl9 144 264 0 264 1 1 0 1 0 8 0 amappl8 136 105 0 103 1 0 1 1 0 8 0 amappl7 128 144 0 138 1 0 1 1 0 8 0 amappl6 120 171 0 171 1 1 0 1 0 8 0 amappl5 112 95 0 89 1 0 1 1 0 8 0 amappl4 104 291 0 281 1 0 1 1 0 8 0 amappl3 96 3364 0 3273 4 0 4 4 0 8 0 amappl2 88 525 0 498 2 0 2 2 0 8 0 amappl1 80 10575 0 10239 15 4 11 15 0 8 0 amappl 88 4795 0 4648 5 0 5 5 0 92 0 uvmvnodes 80 111 0 0 3 0 3 3 0 8 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 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 128 255 0 255 2 2 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 14 0 0 1 0 1 1 0 8 0 uaddrrnd 24 716 0 693 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 716 0 693 1 0 1 1 0 8 0 vmmpekpl 168 7502 0 7460 3 0 3 3 0 8 0 vmmpepl 168 53295 0 51901 93 15 78 93 0 357 0 vmsppl 488 715 0 693 5 1 4 5 0 8 0 rwobjpl 80 17938 0 17182 25 1 24 25 0 8 0 pdppl 4096 1439 0 1386 95 40 55 83 0 8 2 pvpl 32 21055 0 0 170 0 170 170 0 265 0 pmappl 256 715 0 693 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 276 0 51 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace dt_ioctl_record_stop(ffff800001589000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(21e5f,1,2000,ffff80003a7ccd18) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,1,2000,ffff80003a7ccd18) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff800038bc92d0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805cef1a78,1,fffffd80097fd618,ffff80003a7ccd18) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c374e18,ffff80003a7ccd18) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c374e18,ffff80003a7ccd18) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c374e18,ffff80003a7ccd18) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffffd806c374e18,ffff80003a7ccd18) at closef+0x192 sys/kern/kern_descrip.c:1265 fdfree(ffff80003a7ccd18) at fdfree+0x116 sys/kern/kern_descrip.c:1196 exit1(ffff80003a7ccd18,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003a7ccd18,ffff800038bc9640,ffff800038bc9590) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800038bc9640) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800038bc9640) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78930bfa09e0, count: -12 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299bdff0) 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+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff839d0340) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff839d0340) at __mp_lock+0x1a3 sys/kern/kern_lock.c:173 uvm_fault(fffffd806c8ca9a0,e79ded51000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:650 upageflttrap(ffff80002a268060,e79ded51000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80002a268060) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7b4ad73a5a10, count: 6 ddb{1}> trace x86_ipi_db(ffff8000299bdff0) 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+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff839d0340) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff839d0340) at __mp_lock+0x1a3 sys/kern/kern_lock.c:173 uvm_fault(fffffd806c8ca9a0,e79ded51000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:650 upageflttrap(ffff80002a268060,e79ded51000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80002a268060) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7b4ad73a5a10, count: -9