uvm_fault(0xfffffd805b7299c0, 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 154216 23958 0 0 0 1 syz-executor dt_ioctl_record_stop(ffff800001480000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(11e5f,81,2000,ffff80003c440558) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003c440558) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003a433610) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd807c7916c8,81,fffffd80097fb618,ffff80003c440558) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8067329c20,ffff80003c440558) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8067329c20,ffff80003c440558) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8067329c20,ffff80003c440558) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8067329c20,ffff80003c440558) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c440558) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c440558,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c440558,ffff80003a433980,ffff80003a4338d0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003a433980) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a433980) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6fd04d3d6e30, 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(0xfffffd805b7299c0, 0x0, 0, 1) -> e ddb{0}> trace dt_ioctl_record_stop(ffff800001480000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(11e5f,81,2000,ffff80003c440558) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003c440558) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003a433610) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd807c7916c8,81,fffffd80097fb618,ffff80003c440558) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8067329c20,ffff80003c440558) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8067329c20,ffff80003c440558) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8067329c20,ffff80003c440558) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8067329c20,ffff80003c440558) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c440558) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c440558,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c440558,ffff80003a433980,ffff80003a4338d0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003a433980) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a433980) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6fd04d3d6e30, count: -12 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003a433540 rbx 0x1 rdx 0 rcx 0xffff80003c440558 rax 0xffffffff8384a480 dt_prov_syscall r8 0 r9 0 r10 0xe59a623bf6faf90b r11 0xe6a662f46d860d2e r12 0 r13 0 r14 0 r15 0xffff8000015d4000 rip 0xffffffff82aa4568 dt_ioctl_record_stop+0x108 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff80003a433510 ss 0 dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 ddb{0}> show proc PROC (syz-executor) tid=92308 pid=47898 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=86, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c440558 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003c440028,0xffff80003c440800 process=0xffff80002a2a6b60 user=0xffff80003a42e000, vmspace=0xfffffd805b7299c0 estcpu=36, cpticks=5, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 69011 141389 17586 0 2 0x4000010 syz-executor 69011 394700 17586 0 3 0x4000090 fsleep syz-executor 69011 220468 17586 0 3 0x4000090 fsleep syz-executor 45963 56340 96303 0 2 0 syz-executor 45963 269150 96303 0 3 0x4000080 ttyout syz-executor 45963 520789 96303 0 2 0x4000000 syz-executor 23958 154216 21439 0 7 0 syz-executor 23958 339072 21439 0 3 0x4000080 kqread syz-executor 23958 379934 21439 0 3 0x4000080 fsleep syz-executor 68744 456918 48314 0 3 0x82 nanoslp syz-executor 18521 69683 40818 0 3 0x3000 suspend syz-executor 18521 287487 40818 0 2 0x4081000 syz-executor 18521 497854 40818 0 3 0x4081000 inode syz-executor 4036 8293 0 0 3 0x14200 acct acct 14754 396925 0 0 3 0x14280 nfsidl nfsio 19454 9564 0 0 3 0x14280 nfsidl nfsio 24236 278740 0 0 3 0x14200 bored sosplice 96303 364899 48314 0 3 0x82 nanoslp syz-executor 81963 211412 48314 0 3 0x82 wait syz-executor 19068 132770 48314 0 3 0x82 nanoslp syz-executor 40818 497793 48314 0 3 0x82 wait syz-executor 21439 61288 48314 0 3 0x82 nanoslp syz-executor 17586 441180 48314 0 3 0x82 nanoslp syz-executor 27303 344184 48314 0 2 0x2 syz-executor 48314 177475 25692 0 3 0x82 kqread syz-executor 25692 510820 81718 0 3 0x10008a sigsusp ksh 81718 438584 33486 0 3 0x98 kqread sshd-session 33486 396532 76624 0 3 0x92 kqread sshd-session 89257 246642 1 0 3 0x100083 ttyopn getty 76624 412082 1 0 3 0x88 kqread sshd 40466 281958 97867 74 3 0x1100092 bpf pflogd 97867 492747 1 0 3 0x80 sbwait pflogd 32728 86157 94832 73 3 0x1100090 kqread syslogd 94832 228783 1 0 3 0x100082 sbwait syslogd 46382 30086 1 0 3 0x100080 kqread resolvd 33322 456951 44301 77 3 0x100092 kqread dhcpleased 56662 309581 44301 77 3 0x100092 kqread dhcpleased 44301 449338 1 0 3 0x80 kqread dhcpleased 76426 201169 0 0 3 0x14200 bored smr 37486 215369 0 0 3 0x14200 pgzero zerothread 16320 303718 0 0 3 0x14200 aiodoned aiodoned 20099 135379 0 0 3 0x14200 syncer update 87616 118912 0 0 3 0x14200 cleaner cleaner 46627 267381 0 0 3 0x14200 reaper reaper 51174 143216 0 0 3 0x14200 pgdaemon pagedaemon 28735 288838 0 0 3 0x14200 bored viomb 68137 505947 0 0 3 0x40014200 acpi0 acpi0 97933 312349 0 0 3 0x40014200 idle1 20126 401944 0 0 3 0x14200 bored softnet7 37178 161646 0 0 3 0x14200 bored softnet6 78517 72223 0 0 3 0x14200 bored softnet5 22649 134871 0 0 3 0x14200 bored softnet4 82779 472683 0 0 3 0x14200 bored softnet3 73904 224125 0 0 3 0x14200 bored softnet2 71209 422800 0 0 3 0x14200 bored softnet1 62961 65225 0 0 3 0x14200 bored softnet0 30155 416537 0 0 3 0x14200 bored systqmp 60471 63496 0 0 3 0x14200 bored systq 8877 8016 0 0 3 0x14200 tmoslp softclockmp 3191 241040 0 0 3 0x40014200 tmoslp softclock 17313 276799 0 0 3 0x40014200 idle0 1 170368 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 23958 (syz-executor) thread 0xffff80003c441780 (154216) exclusive rwlock uobjlk r = 0 (0xfffffd806aa0cb78) #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:699 #3 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #4 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd805b729ca8) #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:1924 #3 uvm_fault_check+0x4a sys/uvm/uvm_fault.c:741 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #7 recall_trap+0x8 Process 18521 (syz-executor) thread 0xffff80003c440d20 (287487) exclusive rrwlock inode r = 0 (0xfffffd806e616358) #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 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:748 #9 Xsyscall+0x128 Process 27303 (syz-executor) thread 0xffff80002a2b87e0 (344184) exclusive rrwlock inode r = 0 (0xfffffd806aa01208) #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 (0xfffffd806ccb7b30) #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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10258 11075K 11174K 166960K 12093 0 pcb 20 16K 18K 166960K 392 0 rtable 185 10K 10K 166960K 530 0 pf 39 18K 20K 166960K 151 0 ifaddr 36 6K 8K 166960K 109 0 ifgroup 60 2K 3K 166960K 182 0 sysctl 4 1K 9K 166960K 10 0 counters 70 37K 38K 166960K 188 0 ioctlops 0 0K 4K 166960K 1717 0 iov 0 0K 28K 166960K 63 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1395 88K 89K 166960K 2128 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 16 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 115 0 dirhash 12 2K 3K 166960K 45 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 85K 166960K 1315 0 sigio 0 0K 0K 166960K 156 0 proc 73 115K 164K 166960K 737 0 subproc 72 4K 4K 166960K 82 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 189 0 in_multi 69 5K 7K 166960K 188 0 ether_multi 1 0K 0K 166960K 17 0 mrt 1 0K 0K 166960K 17 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 289 1288K 1288K 166960K 289 0 exec 0 0K 1K 166960K 573 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 243 160K 183K 166960K 13498 0 UVM aobj 4 2K 2K 166960K 5 0 pinsyscall 42 84K 100K 166960K 2489 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 98 0 NDP 13 0K 2K 166960K 75 0 temp 78 8652K 8907K 166960K 67483 0 kqueue 16 26K 30K 166960K 266 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 120 134 0 131 1 0 1 1 0 8 0 rtentry 176 146 0 76 5 0 5 5 0 8 0 unpcb 144 1028 0 1006 11 9 2 6 0 8 1 syncache 336 10 0 10 5 5 0 1 0 8 0 tcpqe 32 5 0 5 3 3 0 1 0 8 0 tcpcb 736 572 0 563 19 12 7 7 0 8 6 arp 128 18 0 8 1 0 1 1 0 8 0 inpcb 328 1812 0 1794 19 9 10 13 0 8 7 nd6 144 22 0 10 1 0 1 1 0 8 0 pkpcb 40 6 0 6 3 2 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 48 0 48 3 2 1 1 0 8 1 pppxif 1504 2 0 2 2 2 0 1 0 8 0 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 10 0 3 1 0 1 1 0 482 0 pffrnode 88 5 0 0 1 0 1 1 0 8 0 pffrent 40 18 0 11 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 1 1 0 1 0 8 0 pfstitem 24 95 0 36 1 0 1 1 0 8 0 pfstkey 128 97 0 38 2 0 2 2 0 8 0 pfstate 384 96 0 37 6 0 6 6 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 rttmr 136 5 0 5 2 2 0 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 758 0 442 28 3 25 28 0 8 2 art_table 40 762 0 442 5 0 5 5 0 8 0 art_node 32 145 0 89 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 9 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 112 0 102 1 0 1 1 0 8 0 shmpl 112 2 0 1 1 0 1 1 0 8 0 dirhash 1024 41 0 24 3 0 3 3 0 8 0 dino2pl 256 3938 0 2436 95 0 95 95 0 8 0 ffsino 296 3938 0 2436 117 0 117 117 0 8 0 nchpl 144 5782 0 4082 64 0 64 64 0 8 0 rtmask 32 7 0 7 2 2 0 1 0 8 0 uvmvnodes 80 4242 0 0 87 0 87 87 0 8 0 vnodes 216 4242 0 0 236 0 236 236 0 8 0 namei 1024 20908 0 20907 4 3 1 3 0 8 0 percpumem 16 109 0 59 1 0 1 1 0 8 0 kstatmem 264 118 0 88 3 0 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scxspl 216 29823 0 29823 15 14 1 8 1 8 1 plimitpl 152 482 0 463 1 0 1 1 0 8 0 sigapl 424 1641 0 1584 7 0 7 7 0 8 0 knotepl 120 528 0 0 16 0 16 16 0 8 0 kqueuepl 224 443 0 430 2 1 1 2 0 8 0 pipepl 344 320 0 291 12 7 5 9 0 8 2 fdescpl 528 1611 0 1580 3 0 3 3 0 8 0 filepl 160 11060 0 10813 28 14 14 20 0 8 2 lockfpl 104 824 0 819 5 4 1 3 0 8 0 lockfspl 48 219 0 215 1 0 1 1 0 8 0 sessionpl 144 29 0 20 1 0 1 1 0 8 0 pgrppl 48 59 0 42 1 0 1 1 0 8 0 ucredpl 104 2109 0 2093 1 0 1 1 0 8 0 zombiepl 144 1834 0 1830 2 1 1 1 0 8 0 processpl 1232 1641 0 1584 5 0 5 5 0 8 0 procpl 664 3712 0 3647 7 0 7 7 0 8 0 sosppl 168 9 0 9 4 4 0 1 0 8 0 sockpl 752 3031 0 2988 39 25 14 18 0 8 7 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 120 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 27 0 0 4 0 4 4 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 298 0 0 19 0 19 19 0 8 0 bufpl 280 12249 0 6106 440 0 440 440 0 8 0 anonpl 32 11525 0 0 93 0 93 93 0 246 0 amapchunkpl 152 48239 0 47724 52 21 31 31 0 158 5 amappl16 200 5644 0 5369 68 53 15 24 0 8 0 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 131 0 119 1 0 1 1 0 8 0 amappl13 176 9 0 9 3 2 1 1 0 8 1 amappl12 168 2298 0 2267 3 1 2 2 0 8 0 amappl11 160 118 0 104 1 0 1 1 0 8 0 amappl10 152 9 0 9 1 1 0 1 0 8 0 amappl9 144 252 0 252 1 1 0 1 0 8 0 amappl8 136 22 0 19 1 0 1 1 0 8 0 amappl7 128 117 0 105 1 0 1 1 0 8 0 amappl6 120 222 0 218 1 0 1 1 0 8 0 amappl5 112 132 0 122 1 0 1 1 0 8 0 amappl4 104 341 0 321 1 0 1 1 0 8 0 amappl3 96 9351 0 9236 5 1 4 4 0 8 0 amappl2 88 753 0 688 2 0 2 2 0 8 0 amappl1 80 14617 0 14020 15 0 15 15 0 8 0 amappl 88 12540 0 12370 5 0 5 5 0 92 0 dma4096 4096 3 0 3 3 3 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 128 253 0 253 1 1 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 4 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1611 0 1580 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1611 0 1580 1 0 1 1 0 8 0 vmmpekpl 168 15099 0 15056 3 0 3 3 0 8 0 vmmpepl 168 108440 0 106185 145 36 109 109 0 357 8 vmsppl 488 1610 0 1580 8 3 5 5 0 8 0 rwobjpl 80 34348 0 28918 113 2 111 111 0 8 0 pdppl 4096 3230 0 3160 118 44 74 84 0 8 4 pvpl 32 20350 0 0 164 0 164 164 0 265 0 pmappl 256 1610 0 1580 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 327 0 71 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace dt_ioctl_record_stop(ffff800001480000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586 dtclose(11e5f,81,2000,ffff80003c440558) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003c440558) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003a433610) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd807c7916c8,81,fffffd80097fb618,ffff80003c440558) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd8067329c20,ffff80003c440558) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8067329c20,ffff80003c440558) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd8067329c20,ffff80003c440558) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd8067329c20,ffff80003c440558) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c440558) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80003c440558,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c440558,ffff80003a433980,ffff80003a4338d0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003a433980) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a433980) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6fd04d3d6e30, 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 __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(ffffffff8399e0e8) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff8399e0e8) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 uvm_fault(fffffd805b729ba8,535a89cc000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:700 upageflttrap(ffff80002a365b90,535a89cc000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80002a365b90) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7392fc411370, count: 6 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 __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(ffffffff8399e0e8) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff8399e0e8) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 uvm_fault(fffffd805b729ba8,535a89cc000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:700 upageflttrap(ffff80002a365b90,535a89cc000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80002a365b90) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7392fc411370, count: -9