uvm_fault(0xfffffd806c200018, 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 448674 27086 0 0 0 1 syz-executor dt_ioctl_record_stop(ffff800001495000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,81,2000,ffff80003b008a80) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003b008a80) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff800030fe6d50) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061faa2c8,81,fffffd80097fb8f0,ffff80003b008a80) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806bd8f7d0,ffff80003b008a80) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806bd8f7d0,ffff80003b008a80) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806bd8f7d0,ffff80003b008a80) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806bd8f7d0,ffff80003b008a80) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003b008a80) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003b008a80,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003b008a80,ffff800030fe70c0,ffff800030fe7010) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800030fe70c0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800030fe70c0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7897b9f985a0, 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(0xfffffd806c200018, 0x0, 0, 1) -> e ddb{0}> trace dt_ioctl_record_stop(ffff800001495000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,81,2000,ffff80003b008a80) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003b008a80) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff800030fe6d50) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061faa2c8,81,fffffd80097fb8f0,ffff80003b008a80) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806bd8f7d0,ffff80003b008a80) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806bd8f7d0,ffff80003b008a80) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806bd8f7d0,ffff80003b008a80) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806bd8f7d0,ffff80003b008a80) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003b008a80) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003b008a80,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003b008a80,ffff800030fe70c0,ffff800030fe7010) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800030fe70c0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800030fe70c0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7897b9f985a0, count: -12 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800030fe6c80 rbx 0x1 rdx 0 rcx 0xffff80003b008a80 rax 0xffffffff8380c578 dt_prov_syscall r8 0xffffffffffffffff r9 0 r10 0x2482c01b0aa4ab50 r11 0xc567df32c18209bb r12 0 r13 0 r14 0 r15 0xffff8000014b0700 rip 0xffffffff81eb4db8 dt_ioctl_record_stop+0x108 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff800030fe6c50 ss 0x10 dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 ddb{0}> show proc PROC (syz-executor) tid=363794 pid=40622 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=75, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003b008a80 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003b009ca8,0xffff80003b009a20 process=0xffff80002a3cf508 user=0xffff800030fe2000, vmspace=0xfffffd806c200018 estcpu=25, cpticks=1, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 13009 420388 2269 0 2 0 syz-executor 13009 456202 2269 0 3 0x4000080 fsleep syz-executor 99313 106257 22459 0 2 0 syz-executor 99313 207621 22459 0 3 0x4000080 fsleep syz-executor 49915 303749 69801 0 2 0 syz-executor 49915 292235 69801 0 3 0x4000080 fsleep syz-executor 30848 160442 49907 0 2 0 syz-executor 30848 304139 49907 0 2 0x4000000 syz-executor 30848 441809 49907 0 2 0x4000000 syz-executor 30848 134710 49907 0 2 0x4000000 syz-executor 27086 448674 59081 0 7 0 syz-executor 27086 249006 59081 0 2 0x4000000 syz-executor 27086 47117 59081 0 2 0x4000000 syz-executor 92203 77164 0 0 3 0x14200 bored sosplice 2259 265625 48721 0 2 0x2 syz-executor 69801 455881 48721 0 2 0x2 syz-executor 35533 6323 48721 0 2 0x2 syz-executor 73893 487546 48721 0 2 0xc82 syz-executor 2269 187810 48721 0 2 0xc82 syz-executor 22459 81829 48721 0 2 0xc82 syz-executor 49907 138471 48721 0 2 0xc82 syz-executor 59081 378003 48721 0 3 0x82 nanoslp syz-executor 48721 265129 81199 0 3 0x82 kqread syz-executor 81199 468204 64094 0 3 0x10008a sigsusp ksh 64094 285163 24501 0 3 0x98 kqread sshd-session 24501 488128 68288 0 3 0x92 kqread sshd-session 93027 230389 1 0 3 0x100083 ttyin getty 68288 236261 1 0 3 0x88 kqread sshd 7062 103460 34882 74 3 0x1100092 bpf pflogd 34882 147932 1 0 3 0x80 sbwait pflogd 39439 310257 80420 73 3 0x1100090 kqread syslogd 80420 301861 1 0 3 0x100082 sbwait syslogd 48297 260669 1 0 3 0x100080 kqread resolvd 59200 464655 74323 77 3 0x100092 kqread dhcpleased 79739 31715 74323 77 3 0x100092 kqread dhcpleased 74323 116209 1 0 3 0x80 kqread dhcpleased 40213 425461 0 0 3 0x14200 bored smr 13895 469648 0 0 2 0x14200 zerothread 21314 302871 0 0 3 0x14200 aiodoned aiodoned 40658 391860 0 0 3 0x14200 syncer update 72859 520386 0 0 3 0x14200 cleaner cleaner 35475 6232 0 0 3 0x14200 reaper reaper 70201 176589 0 0 3 0x14200 pgdaemon pagedaemon 96162 508768 0 0 3 0x14200 bored viomb 61154 511902 0 0 3 0x40014200 acpi0 acpi0 67255 60377 0 0 3 0x40014200 idle1 76263 59454 0 0 3 0x14200 bored softnet1 5953 232412 0 0 3 0x14200 bored softnet0 56156 386786 0 0 3 0x14200 smrbar systqmp 27220 370191 0 0 3 0x14200 bored systq 55163 233465 0 0 3 0x14200 tmoslp softclockmp 22731 54153 0 0 3 0x40014200 tmoslp softclock 47557 195646 0 0 3 0x40014200 idle0 1 309803 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 2259 (syz-executor) thread 0xffff8000fffef4d8 (265625) exclusive rrwlock inode r = 0 (0xfffffd806e9facb0) #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 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c520328) #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 35533 (syz-executor) thread 0xffff8000fffefa08 (6323) exclusive rrwlock inode r = 0 (0xfffffd80621ce6b0) #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 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c5208f0) #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 56156 (systqmp) thread 0xffff8000ffffe000 (386786) shared rwlock systqmp r = 0 (0xffffffff83882b38) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10203 11056K 11283K 166960K 11564 0 pcb 17 14K 16K 166960K 131 0 rtable 218 7K 8K 166960K 398 0 pf 34 17K 21K 166960K 69 0 ifaddr 38 6K 7K 166960K 57 0 ifgroup 51 2K 2K 166960K 82 0 sysctl 3 1K 9K 166960K 10 0 counters 66 36K 37K 166960K 88 0 ioctlops 0 0K 4K 166960K 1520 0 iov 0 0K 18K 166960K 14 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1343 84K 85K 166960K 1573 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 7 0K 0K 166960K 12 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 110K 166960K 402 0 sigio 0 0K 0K 166960K 19 0 proc 72 115K 147K 166960K 548 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 39 0 in_multi 84 6K 7K 166960K 110 0 ether_multi 1 0K 0K 166960K 2 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 439 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 237 172K 182K 166960K 5366 0 UVM aobj 10 2K 2K 166960K 12 0 pinsyscall 41 82K 104K 166960K 1524 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 22 0 NDP 11 0K 1K 166960K 34 0 temp 43 8644K 8710K 166960K 19331 0 kqueue 13 20K 26K 166960K 82 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 45 0 42 1 0 1 1 0 8 0 rtentry 176 122 0 26 5 0 5 5 0 8 0 unpcb 144 325 0 306 6 0 6 6 0 8 5 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 736 135 0 130 7 0 7 7 0 8 6 arp 136 20 0 4 1 0 1 1 0 8 0 inpcb 328 408 0 399 7 0 7 7 0 8 6 nd6 152 25 0 5 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 5 0 5 1 0 1 1 0 8 1 pppxif 1504 3 0 3 1 1 0 1 0 8 0 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 2 0 0 1 0 1 1 0 482 0 pffrnode 88 2 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 0 1 0 1 1 0 8 0 pfosfp 40 1428 0 1428 5 0 5 5 0 8 5 pfosfpen 112 1428 0 1428 21 0 21 21 0 8 21 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pfstitem 24 41 0 2 1 0 1 1 0 8 0 pfstkey 128 45 0 6 2 0 2 2 0 8 0 pfstate 384 43 0 4 5 0 5 5 0 8 0 pfrule 1344 26 0 20 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 478 0 36 29 0 29 29 0 8 0 art_table 40 479 0 36 5 0 5 5 0 8 0 art_node 32 122 0 22 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semapl 112 8 0 3 1 0 1 1 0 8 0 shmpl 112 9 0 2 1 0 1 1 0 8 0 dirhash 1024 26 0 9 3 0 3 3 0 8 0 dino2pl 256 2093 0 582 96 0 96 96 0 8 0 ffsino 296 2093 0 582 118 0 118 118 0 8 0 nchpl 144 2632 0 934 64 0 64 64 0 8 0 vnodes 216 2280 0 0 127 0 127 127 0 8 0 namei 1024 8660 0 8658 1 0 1 1 0 8 0 percpumem 16 59 0 11 1 0 1 1 0 8 0 kstatmem 264 38 0 14 2 0 2 2 0 8 0 scsiplug 72 4 0 4 1 0 1 1 0 8 1 scxspl 216 12899 0 12899 3 2 1 2 1 8 1 plimitpl 152 132 0 114 1 0 1 1 0 8 0 sigapl 424 705 0 658 7 0 7 7 0 8 1 knotepl 120 313 0 0 10 0 10 10 0 8 0 kqueuepl 224 182 0 172 5 0 5 5 0 8 4 pipepl 344 205 0 178 9 0 9 9 0 8 6 fdescpl 528 688 0 658 3 0 3 3 0 8 0 filepl 160 3894 0 3672 21 3 18 21 0 8 8 lockfpl 104 113 0 110 1 0 1 1 0 8 0 lockfspl 48 48 0 45 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 38 0 21 1 0 1 1 0 8 0 ucredpl 104 385 0 371 1 0 1 1 0 8 0 zombiepl 144 659 0 658 1 0 1 1 0 8 0 processpl 1232 705 0 658 5 1 4 5 0 8 0 procpl 664 1179 0 1124 6 0 6 6 0 8 0 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 752 785 0 754 17 5 12 17 0 8 8 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 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 122 0 0 16 0 16 16 0 8 0 mcl2k 2048 36 0 0 5 0 5 5 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 293 0 0 19 0 19 19 0 8 0 bufpl 280 5211 0 143 362 0 362 362 0 8 0 anonpl 32 7740 0 0 63 0 63 63 0 246 0 amapchunkpl 152 16581 0 16123 27 3 24 27 0 158 4 amappl16 200 2687 0 2659 17 3 14 15 0 8 8 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 4 0 4 1 1 0 1 0 8 0 amappl13 176 464 0 463 1 0 1 1 0 8 0 amappl12 168 1075 0 1034 3 0 3 3 0 8 0 amappl11 160 79 0 79 1 1 0 1 0 8 0 amappl10 152 47 0 33 1 0 1 1 0 8 0 amappl9 144 250 0 250 1 1 0 1 0 8 0 amappl8 136 31 0 29 1 0 1 1 0 8 0 amappl7 128 144 0 143 1 0 1 1 0 8 0 amappl6 120 277 0 264 1 0 1 1 0 8 0 amappl5 112 110 0 99 1 0 1 1 0 8 0 amappl4 104 434 0 406 1 0 1 1 0 8 0 amappl3 96 2793 0 2707 4 1 3 3 0 8 0 amappl2 88 827 0 750 2 0 2 2 0 8 0 amappl1 80 10420 0 9831 15 1 14 15 0 8 0 amappl 88 4595 0 4438 5 0 5 5 0 92 0 uvmvnodes 80 2280 0 0 47 0 47 47 0 8 0 dma65536 65536 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 128 254 0 254 2 1 1 1 0 8 1 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 11 0 2 1 0 1 1 0 8 0 uaddrrnd 24 688 0 658 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 688 0 658 1 0 1 1 0 8 0 vmmpekpl 168 7687 0 7653 2 0 2 2 0 8 0 vmmpepl 168 51801 0 49944 100 2 98 100 0 357 8 vmsppl 488 687 0 658 5 0 5 5 0 8 1 rwobjpl 80 19286 0 16089 70 0 70 70 0 8 0 pdppl 4096 1383 0 1316 103 32 71 85 0 8 4 pvpl 32 15394 0 0 127 2 125 125 0 265 0 pmappl 256 687 0 658 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 291 0 36 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace dt_ioctl_record_stop(ffff800001495000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,81,2000,ffff80003b008a80) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003b008a80) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff800030fe6d50) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061faa2c8,81,fffffd80097fb8f0,ffff80003b008a80) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806bd8f7d0,ffff80003b008a80) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806bd8f7d0,ffff80003b008a80) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806bd8f7d0,ffff80003b008a80) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806bd8f7d0,ffff80003b008a80) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003b008a80) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003b008a80,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003b008a80,ffff800030fe70c0,ffff800030fe7010) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800030fe70c0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800030fe70c0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7897b9f985a0, count: -12 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299edff0) 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 end of kernel end trace frame: 0x74ca87720160, count: 12 ddb{1}> trace x86_ipi_db(ffff8000299edff0) 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 end of kernel end trace frame: 0x74ca87720160, count: -3