uvm_fault(0xfffffd80670073f8, 0x20, 0, 1) -> e kernel: page fault trap, code=0 Stopped at mtx_enter_try+0x7b: movl 0x8(%r14),%r15d TID PID UID PRFLAGS PFLAGS CPU COMMAND mtx_enter_try(18) at mtx_enter_try+0x7b sys/kern/kern_lock.c:290 mtx_enter(18) at mtx_enter+0x62 sys/kern/kern_lock.c:261 clockintr_unbind(ffff8000014c2f30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff800001464000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(21e5f,41,2000,ffff80003c47ea90) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,41,2000,ffff80003c47ea90) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003b835a30) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8067338440,41,fffffd80097fb680,ffff80003c47ea90) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80659f47e0,ffff80003c47ea90) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80659f47e0,ffff80003c47ea90) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80659f47e0,ffff80003c47ea90) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd80659f47e0,ffff80003c47ea90) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c47ea90) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c47ea90,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c47ea90,ffff80003b835da0,ffff80003b835cf0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003b835da0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003b835da0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 end trace frame: 0xffff80003b835e20, count: 0 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd80670073f8, 0x20, 0, 1) -> e ddb{1}> trace mtx_enter_try(18) at mtx_enter_try+0x7b sys/kern/kern_lock.c:290 mtx_enter(18) at mtx_enter+0x62 sys/kern/kern_lock.c:261 clockintr_unbind(ffff8000014c2f30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff800001464000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(21e5f,41,2000,ffff80003c47ea90) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,41,2000,ffff80003c47ea90) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003b835a30) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8067338440,41,fffffd80097fb680,ffff80003c47ea90) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80659f47e0,ffff80003c47ea90) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80659f47e0,ffff80003c47ea90) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80659f47e0,ffff80003c47ea90) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd80659f47e0,ffff80003c47ea90) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c47ea90) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c47ea90,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c47ea90,ffff80003b835da0,ffff80003b835cf0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003b835da0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003b835da0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b73edb1fbe0, count: -15 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003b835890 rbx 0 rdx 0 rcx 0xffff80003c47ea90 rax 0xffff8000299edf00 r8 0xffffffffffffffff r9 0x1 r10 0x96e6848be6986b33 r11 0x9fbbfa226df0889b r12 0x1 r13 0xffff8000299edff0 r14 0x18 r15 0 rip 0xffffffff82bdfcfb mtx_enter_try+0x7b cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff80003b835850 ss 0x10 mtx_enter_try+0x7b: movl 0x8(%r14),%r15d ddb{1}> show proc PROC (syz-executor) tid=146217 pid=63937 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c47ea90 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80002a2bcd38,0xffffffff8387e128 process=0xffff80003b825d60 user=0xffff80003b830000, vmspace=0xfffffd80670073f8 estcpu=36, cpticks=3, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 16502 33676 5625 0 2 0 syz-executor 16502 95963 5625 0 3 0x4000080 fsleep syz-executor 72034 208372 74579 0 3 0x80 nanoslp syz-executor 72034 165892 74579 0 3 0x4000080 kqread syz-executor 7793 257622 36778 0 3 0x3000 suspend syz-executor 7793 208158 36778 0 3 0x4081000 biowait syz-executor 61241 408924 82773 0 3 0x2 biowait syz-executor 72714 323034 0 0 3 0x14200 bored sosplice 36778 469480 82773 0 3 0x82 wait syz-executor 5625 306843 82773 0 3 0x82 nanoslp syz-executor 80834 211939 82773 0 3 0x82 nanoslp syz-executor 74579 495395 82773 0 3 0x82 nanoslp syz-executor 50467 385545 82773 0 3 0x82 nanoslp syz-executor 21748 62286 82773 0 3 0x2 biowait syz-executor 78162 522725 82773 0 3 0x82 nanoslp syz-executor 82773 253445 18681 0 3 0x82 kqread syz-executor 18681 370973 57762 0 3 0x10008a sigsusp ksh 57762 230090 3240 0 3 0x98 kqread sshd-session 3240 488544 74006 0 3 0x92 kqread sshd-session 1892 145743 1 0 3 0x100083 ttyin getty 74006 483596 1 0 3 0x88 kqread sshd 58974 329770 44078 74 3 0x1100092 bpf pflogd 44078 212405 1 0 3 0x80 sbwait pflogd 25983 379609 21622 73 3 0x1100090 kqread syslogd 21622 315525 1 0 3 0x100082 sbwait syslogd 4623 469326 1 0 3 0x100080 kqread resolvd 59970 202841 56550 77 3 0x100092 kqread dhcpleased 34806 149533 56550 77 3 0x100092 kqread dhcpleased 56550 210780 1 0 3 0x80 kqread dhcpleased 55442 516988 0 0 3 0x14200 bored smr 39336 139822 0 0 3 0x14200 pgzero zerothread 70868 180058 0 0 3 0x14200 aiodoned aiodoned 9348 490487 0 0 3 0x14200 syncer update 56796 144338 0 0 3 0x14200 cleaner cleaner 44552 21054 0 0 3 0x14200 reaper reaper 97709 152916 0 0 3 0x14200 pgdaemon pagedaemon 43144 490849 0 0 3 0x14200 bored viomb 30541 214041 0 0 3 0x40014200 acpi0 acpi0 39567 72207 0 0 3 0x40014200 idle1 79532 357040 0 0 3 0x14200 bored softnet7 20063 384025 0 0 3 0x14200 bored softnet6 39763 440264 0 0 3 0x14200 bored softnet5 66878 209179 0 0 3 0x14200 bored softnet4 19612 462032 0 0 3 0x14200 bored softnet3 80347 173481 0 0 3 0x14200 bored softnet2 71318 104328 0 0 3 0x14200 bored softnet1 6448 48312 0 0 3 0x14200 bored softnet0 28112 78754 0 0 3 0x14200 bored systqmp 38389 20919 0 0 3 0x14200 bored systq 23272 216641 0 0 3 0x14200 tmoslp softclockmp 3281 11661 0 0 3 0x40014200 tmoslp softclock 71171 100200 0 0 3 0x40014200 idle0 1 440999 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 7793 (syz-executor) thread 0xffff80002a2bcfd0 (208158) Process 61241 (syz-executor) thread 0xffff80003b82ba18 (408924) Process 21748 (syz-executor) thread 0xffff80002a2d6d10 (62286) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10221 11138K 11492K 166960K 12201 0 pcb 17 13K 14K 166960K 153 0 rtable 209 8K 8K 166960K 379 0 pf 35 17K 19K 166960K 91 0 ifaddr 42 7K 8K 166960K 72 0 ifgroup 55 2K 2K 166960K 105 0 sysctl 3 1K 9K 166960K 8 0 counters 68 36K 37K 166960K 124 0 ioctlops 0 0K 8K 166960K 1547 0 iov 0 0K 12K 166960K 19 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1338 84K 85K 166960K 1799 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 14 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 88 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 97K 166960K 685 0 sigio 0 0K 0K 166960K 10 0 proc 73 115K 147K 166960K 599 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 59 0 in_multi 95 7K 7K 166960K 124 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 478 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 239 172K 177K 166960K 7872 0 UVM aobj 84 4K 4K 166960K 84 0 pinsyscall 40 80K 104K 166960K 1797 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 42 0 NDP 12 0K 2K 166960K 46 0 temp 51 8641K 8721K 166960K 27482 0 kqueue 14 22K 26K 166960K 94 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 120 127 0 123 3 0 3 3 0 8 2 rtentry 176 135 0 47 5 0 5 5 0 8 0 unpcb 144 296 0 278 1 0 1 1 0 8 0 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpcb 736 209 0 204 10 3 7 7 0 8 6 arp 128 19 0 5 1 0 1 1 0 8 0 inpcb 328 595 0 582 12 5 7 7 0 8 5 nd6 144 22 0 4 1 0 1 1 0 8 0 pkpcb 40 5 0 5 3 2 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 21 0 21 2 1 1 1 0 8 1 pppxif 1504 3 0 3 2 1 1 1 0 8 1 pfstscr 40 2 0 1 1 0 1 1 0 8 0 pffrag 232 3 0 0 1 0 1 1 0 482 0 pffrnode 88 3 0 0 1 0 1 1 0 8 0 pffrent 40 3 0 0 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 3 0 3 3 2 1 1 0 8 1 pfstitem 24 55 0 16 1 0 1 1 0 8 0 pfstkey 128 56 0 16 2 0 2 2 0 8 0 pfstate 384 54 0 16 5 0 5 5 0 8 0 pfrule 1344 24 0 17 2 1 1 2 0 8 0 rttmr 136 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 572 0 143 30 3 27 30 0 8 0 art_table 40 574 0 143 5 0 5 5 0 8 0 art_node 32 134 0 55 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 3 2 1 1 1 0 8 1 semapl 112 86 0 76 1 0 1 1 0 8 0 shmpl 112 81 0 0 3 0 3 3 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 2475 0 962 95 0 95 95 0 8 0 ffsino 296 2475 0 962 117 0 117 117 0 8 0 nchpl 144 3363 0 1669 64 0 64 64 0 8 0 rtmask 32 7 0 7 2 1 1 1 0 8 1 uvmvnodes 80 2838 0 0 58 0 58 58 0 8 0 vnodes 216 2838 0 0 158 0 158 158 0 8 0 namei 1024 10320 0 10320 2 1 1 1 0 8 1 percpumem 16 77 0 28 1 0 1 1 0 8 0 kstatmem 264 58 0 32 3 1 2 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 4 0 4 1 0 1 1 0 8 1 scxspl 216 22683 0 22680 9 8 1 8 1 8 0 plimitpl 152 83 0 65 1 0 1 1 0 8 0 sigapl 424 993 0 940 7 0 7 7 0 8 0 knotepl 120 432 0 0 13 0 13 13 0 8 0 kqueuepl 224 151 0 141 1 0 1 1 0 8 0 pipepl 344 132 0 105 3 0 3 3 0 8 0 fdescpl 528 965 0 936 3 0 3 3 0 8 0 filepl 160 4366 0 4141 18 3 15 15 0 8 4 lockfpl 104 407 0 405 1 0 1 1 0 8 0 lockfspl 48 194 0 192 1 0 1 1 0 8 0 sessionpl 144 24 0 15 1 0 1 1 0 8 0 pgrppl 48 33 0 16 1 0 1 1 0 8 0 ucredpl 104 541 0 528 1 0 1 1 0 8 0 zombiepl 144 1168 0 1164 1 0 1 1 0 8 0 processpl 1248 993 0 940 5 0 5 5 0 8 0 procpl 664 1884 0 1828 9 2 7 7 0 8 0 sosppl 168 2 0 2 2 2 0 1 0 8 0 sockpl 752 1032 0 997 24 12 12 17 0 8 7 mcl64k 65536 20 0 0 3 0 3 3 0 8 1 mcl16k 16384 9 0 0 2 0 2 2 0 8 0 mcl12k 12288 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 11 0 0 2 0 2 2 0 8 0 mcl4k 4096 134 0 0 17 0 17 17 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 278 0 0 17 0 17 17 0 8 0 bufpl 280 9776 0 3633 440 0 440 440 0 8 0 anonpl 32 9932 0 0 81 1 80 80 0 246 0 amapchunkpl 152 25183 0 24637 34 6 28 28 0 158 2 amappl16 200 3463 0 3259 33 13 20 20 0 8 3 amappl15 192 2 0 2 1 1 0 1 0 8 0 amappl14 184 113 0 101 1 0 1 1 0 8 0 amappl13 176 9 0 9 1 1 0 1 0 8 0 amappl12 168 1624 0 1594 4 1 3 3 0 8 0 amappl11 160 73 0 59 1 0 1 1 0 8 0 amappl10 152 14 0 14 1 1 0 1 0 8 0 amappl9 144 254 0 254 1 1 0 1 0 8 0 amappl8 136 24 0 22 1 0 1 1 0 8 0 amappl7 128 131 0 119 1 0 1 1 0 8 0 amappl6 120 180 0 177 1 0 1 1 0 8 0 amappl5 112 129 0 118 1 0 1 1 0 8 0 amappl4 104 305 0 285 1 0 1 1 0 8 0 amappl3 96 4918 0 4806 5 1 4 4 0 8 0 amappl2 88 649 0 587 2 0 2 2 0 8 0 amappl1 80 10695 0 10091 17 3 14 15 0 8 0 amappl 88 7102 0 6938 5 0 5 5 0 92 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 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 83 0 0 2 0 2 2 0 8 0 uaddrrnd 24 965 0 935 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 965 0 935 1 0 1 1 0 8 0 vmmpekpl 168 8898 0 8855 3 0 3 3 0 8 0 vmmpepl 168 66062 0 63951 117 13 104 104 0 357 0 vmsppl 488 964 0 935 6 2 4 5 0 8 0 rwobjpl 80 22685 0 18658 84 0 84 84 0 8 0 pdppl 4096 1938 0 1870 110 38 72 88 0 8 4 pvpl 32 18540 0 0 150 0 150 150 0 265 0 pmappl 256 964 0 935 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 304 0 49 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837c4ff0) 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 __mp_lock(ffffffff839714e0) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839714e0) at __mp_lock+0x199 sys/kern/kern_lock.c:165 intr_handler(ffff80003c464d10,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f Xspllower() at Xspllower+0x1d pmap_do_remove(fffffd806b814d00,e492f892000,e492f8a9000,0) at pmap_do_remove+0x6d6 sys/arch/amd64/amd64/pmap.c:1825 uvm_unmap_kill_entry_withlock(fffffd8067007210,fffffd805f57f388,0) at uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1863 uvm_map_teardown(fffffd8067007210) at uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline] uvm_map_teardown(fffffd8067007210) at uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2486 exit1(ffff80002a2bc808,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff80002a2bc808,ffff80003c465140,ffff80003c465090) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c465140) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c465140) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73b808e0d450, count: 1 ddb{0}> trace x86_ipi_db(ffffffff837c4ff0) 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 __mp_lock(ffffffff839714e0) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839714e0) at __mp_lock+0x199 sys/kern/kern_lock.c:165 intr_handler(ffff80003c464d10,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f Xspllower() at Xspllower+0x1d pmap_do_remove(fffffd806b814d00,e492f892000,e492f8a9000,0) at pmap_do_remove+0x6d6 sys/arch/amd64/amd64/pmap.c:1825 uvm_unmap_kill_entry_withlock(fffffd8067007210,fffffd805f57f388,0) at uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1863 uvm_map_teardown(fffffd8067007210) at uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline] uvm_map_teardown(fffffd8067007210) at uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2486 exit1(ffff80002a2bc808,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff80002a2bc808,ffff80003c465140,ffff80003c465090) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c465140) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c465140) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73b808e0d450, count: -14 ddb{0}> machine ddbcpu 1 Stopped at mtx_enter_try+0x7b: movl 0x8(%r14),%r15d mtx_enter_try(18) at mtx_enter_try+0x7b sys/kern/kern_lock.c:290 mtx_enter(18) at mtx_enter+0x62 sys/kern/kern_lock.c:261 clockintr_unbind(ffff8000014c2f30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff800001464000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(21e5f,41,2000,ffff80003c47ea90) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,41,2000,ffff80003c47ea90) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003b835a30) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8067338440,41,fffffd80097fb680,ffff80003c47ea90) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80659f47e0,ffff80003c47ea90) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80659f47e0,ffff80003c47ea90) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80659f47e0,ffff80003c47ea90) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd80659f47e0,ffff80003c47ea90) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c47ea90) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c47ea90,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c47ea90,ffff80003b835da0,ffff80003b835cf0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003b835da0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003b835da0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 end trace frame: 0xffff80003b835e20, count: 0 ddb{1}> trace mtx_enter_try(18) at mtx_enter_try+0x7b sys/kern/kern_lock.c:290 mtx_enter(18) at mtx_enter+0x62 sys/kern/kern_lock.c:261 clockintr_unbind(ffff8000014c2f30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff800001464000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(21e5f,41,2000,ffff80003c47ea90) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,41,2000,ffff80003c47ea90) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003b835a30) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8067338440,41,fffffd80097fb680,ffff80003c47ea90) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80659f47e0,ffff80003c47ea90) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80659f47e0,ffff80003c47ea90) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80659f47e0,ffff80003c47ea90) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd80659f47e0,ffff80003c47ea90) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c47ea90) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c47ea90,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c47ea90,ffff80003b835da0,ffff80003b835cf0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003b835da0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003b835da0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7b73edb1fbe0, count: -15