uvm_fault(0xfffffd8068a87028, 0x48, 0, 1) -> e kernel: page fault trap, code=0 Stopped at witness_checkorder+0xb5: movl 0x20(%r14),%r15d TID PID UID PRFLAGS PFLAGS CPU COMMAND 127122 30536 0 0 0 1 syz-executor witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(18) at mtx_enter+0x4a sys/kern/kern_lock.c:260 clockintr_unbind(ffff800001575c30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff800001560000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(11e5f,41,2000,ffff800035817a28) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,41,2000,ffff800035817a28) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003bc2cf80) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806da35c10,41,fffffd80097fb3a8,ffff800035817a28) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806051acf8,ffff800035817a28) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806051acf8,ffff800035817a28) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806051acf8,ffff800035817a28) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806051acf8,ffff800035817a28) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800035817a28) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800035817a28,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800035817a28,ffff80003bc2d2f0,ffff80003bc2d240) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003bc2d2f0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003bc2d2f0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 end trace frame: 0xffff80003bc2d370, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd8068a87028, 0x48, 0, 1) -> e ddb{0}> trace witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(18) at mtx_enter+0x4a sys/kern/kern_lock.c:260 clockintr_unbind(ffff800001575c30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff800001560000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(11e5f,41,2000,ffff800035817a28) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,41,2000,ffff800035817a28) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003bc2cf80) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806da35c10,41,fffffd80097fb3a8,ffff800035817a28) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806051acf8,ffff800035817a28) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806051acf8,ffff800035817a28) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806051acf8,ffff800035817a28) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806051acf8,ffff800035817a28) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800035817a28) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800035817a28,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800035817a28,ffff80003bc2d2f0,ffff80003bc2d240) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003bc2d2f0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003bc2d2f0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7879467fa140, count: -15 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003bc2cde0 rbx 0 rdx 0 rcx 0xffff800035817a28 rax 0xffffffff837cbffe cpu_info_full_primary+0x1ffe r8 0x120 r9 0 r10 0xfd363417e2fb1574 r11 0x2e91161299dec9b5 r12 0xfe r13 0x9 r14 0x28 r15 0 rip 0xffffffff82d2dd45 witness_checkorder+0xb5 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003bc2cd40 ss 0x10 witness_checkorder+0xb5: movl 0x20(%r14),%r15d ddb{0}> show proc PROC (syz-executor) tid=178308 pid=79776 tcnt=0 stat=onproc flags process=4001008 proc=2000 runpri=32, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff800035817a28 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff800035816038,0xffff80003bc39cc8 process=0xffff8000390279e0 user=0xffff80003bc28000, vmspace=0xfffffd8068a87028 estcpu=34, cpticks=17, pctcpu=0.5, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 30536 127122 78721 0 7 0 syz-executor 30536 245997 78721 0 2 0x4000080 syz-executor 30536 462370 78721 0 2 0x4000080 syz-executor 35867 514644 61255 0 2 0 syz-executor 35867 47802 61255 0 2 0x4000000 syz-executor 14397 295783 56932 0 2 0 syz-executor 14397 58903 56932 0 3 0x4000080 fsleep syz-executor 43927 458479 20486 0 2 0 syz-executor 43927 320745 20486 0 3 0x4000080 kqread syz-executor 68315 254396 64761 0 3 0x80 nanoslp syz-executor 68315 13890 64761 0 3 0x4000080 msgwait syz-executor 68315 36243 64761 0 3 0x4000080 fsleep syz-executor 94913 13877 87572 0 2 0xc80 syz-executor 94913 115448 87572 0 3 0x4000080 semwait syz-executor 94913 199134 87572 0 3 0x4000080 fsleep syz-executor 94913 166597 87572 0 3 0x4000080 fsleep syz-executor 69903 117315 36401 0 2 0x1 syz-executor 69903 339203 36401 0 3 0x4000080 sbwait syz-executor 69903 39942 36401 0 3 0x4000080 kqsel syz-executor 69903 167751 36401 0 3 0x4000080 fsleep syz-executor 69903 137058 36401 0 3 0x4000080 fsleep syz-executor 84405 437321 0 0 3 0x14200 bored sosplice 20486 519034 88408 0 2 0xc82 syz-executor 36401 137473 88408 0 3 0x82 nanoslp syz-executor 87572 20478 88408 0 3 0x82 nanoslp syz-executor 64761 285912 88408 0 3 0x82 nanoslp syz-executor 56932 360338 88408 0 2 0xc82 syz-executor 61255 106819 88408 0 3 0x82 nanoslp syz-executor 31628 438637 88408 0 2 0x3 syz-executor 78721 39973 88408 0 2 0xc82 syz-executor 88408 373078 79522 0 3 0x82 kqread syz-executor 79522 516765 33822 0 3 0x10008a sigsusp ksh 33822 265693 32496 0 3 0x98 kqread sshd-session 32496 218319 23028 0 3 0x92 kqread sshd-session 92645 148511 1 0 3 0x100083 ttyin getty 23028 79657 1 0 3 0x88 kqread sshd 53325 230534 11223 74 3 0x1100092 bpf pflogd 11223 106285 1 0 3 0x80 sbwait pflogd 47631 32718 34045 73 3 0x1100090 kqread syslogd 34045 92371 1 0 3 0x100082 sbwait syslogd 15233 170905 1 0 3 0x100080 kqread resolvd 58300 439905 30233 77 3 0x100092 kqread dhcpleased 9585 504047 30233 77 3 0x100092 kqread dhcpleased 30233 28866 1 0 3 0x80 kqread dhcpleased 18210 467542 0 0 2 0x14200 smr 32245 245977 0 0 2 0x14200 zerothread 70327 168051 0 0 3 0x14200 aiodoned aiodoned 25985 203236 0 0 3 0x14200 syncer update 58211 373322 0 0 3 0x14200 cleaner cleaner 11464 139645 0 0 2 0x14200 reaper 80869 333725 0 0 3 0x14200 pgdaemon pagedaemon 74016 472551 0 0 3 0x14200 bored viomb 69543 256110 0 0 3 0x40014200 acpi0 acpi0 16599 9599 0 0 3 0x40014200 idle1 35319 90199 0 0 3 0x14200 bored softnet7 56569 360079 0 0 3 0x14200 bored softnet6 18731 193503 0 0 3 0x14200 bored softnet5 90809 32525 0 0 3 0x14200 bored softnet4 74694 476670 0 0 3 0x14200 bored softnet3 36780 384439 0 0 3 0x14200 bored softnet2 52816 113663 0 0 3 0x14200 bored softnet1 41279 185688 0 0 3 0x14200 bored softnet0 88201 338049 0 0 3 0x14200 bored systqmp 37667 424318 0 0 3 0x14200 bored systq 54816 322708 0 0 3 0x14200 tmoslp softclockmp 27415 118714 0 0 2 0x40014200 softclock 7898 283483 0 0 3 0x40014200 idle0 1 39006 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 11464 (reaper) thread 0xffff8000ffffc008 (139645) exclusive rwlock kmmaplk r = 0 (0xffffffff838e3498) #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 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvm_unmap+0x7d sys/uvm/uvm_map.c:1792 #4 km_free+0x87 sys/uvm/uvm_km.c:831 #5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304 #6 reaper+0x1aa sys/kern/kern_exit.c:493 #7 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10249 11051K 11774K 166960K 11911 0 pcb 17 12K 20K 166960K 135 0 rtable 234 11K 11K 166960K 323 0 pf 36 17K 81K 166960K 94 0 ifaddr 46 8K 8K 166960K 71 0 ifgroup 57 2K 2K 166960K 107 0 sysctl 4 1K 9K 166960K 10 0 counters 70 37K 37K 166960K 140 0 ioctlops 0 0K 4K 166960K 1613 0 iov 0 0K 16K 166960K 55 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1405 88K 89K 166960K 1804 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 16 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 106K 166960K 547 0 sigio 0 0K 0K 166960K 13 0 proc 72 115K 163K 166960K 561 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 6 0K 0K 166960K 51 0 in_multi 100 7K 7K 166960K 114 0 ether_multi 1 0K 0K 166960K 3 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 265 1182K 1182K 166960K 265 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 261 190K 191K 166960K 6866 0 UVM aobj 25 2K 4K 166960K 27 0 pinsyscall 43 86K 101K 166960K 1668 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 13 0K 1K 166960K 48 0 temp 53 8645K 8712K 166960K 32625 0 kqueue 17 26K 30K 166960K 105 0 SYN cache 2 8K 16K 166960K 3 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 60 0 57 1 0 1 1 0 8 0 rtentry 176 104 0 8 5 0 5 5 0 8 0 unpcb 144 300 0 277 3 1 2 2 0 8 1 syncache 336 5 0 5 2 1 1 1 0 8 1 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 124 0 119 2 1 1 2 0 8 0 arp 136 11 0 1 1 0 1 1 0 8 0 inpcb 328 569 0 558 8 1 7 7 0 8 5 nd6 144 17 0 0 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 32 0 31 1 0 1 1 0 8 0 pppxif 1504 2 0 2 1 0 1 1 0 8 1 pffrag 232 5 0 1 1 0 1 1 0 482 0 pffrnode 88 5 0 1 1 0 1 1 0 8 0 pffrent 40 13 0 9 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 pfstitem 24 45 0 1 1 0 1 1 0 8 0 pfstkey 128 45 0 1 2 0 2 2 0 8 0 pfstate 384 45 0 1 5 0 5 5 0 8 0 pfrule 1344 24 0 19 2 1 1 2 0 8 0 rttmr 136 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 483 0 46 30 2 28 30 0 8 0 art_table 40 485 0 46 5 0 5 5 0 8 0 art_node 32 104 0 18 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 4 2 1 1 1 0 8 0 semapl 112 12 0 5 1 0 1 1 0 8 0 shmpl 112 24 0 2 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2421 0 915 95 0 95 95 0 8 0 ffsino 296 2421 0 915 117 0 117 117 0 8 0 nchpl 144 3202 0 1509 64 0 64 64 0 8 0 rtmask 32 9 0 9 2 1 1 1 0 8 1 uvmvnodes 80 2727 0 0 56 0 56 56 0 8 0 vnodes 216 2727 0 0 152 0 152 152 0 8 0 namei 1024 10665 0 10665 3 2 1 2 0 8 1 percpumem 16 85 0 35 1 0 1 1 0 8 0 kstatmem 264 66 0 38 4 1 3 3 0 8 0 scxspl 216 12940 0 12940 10 2 8 8 1 8 8 plimitpl 152 115 0 95 1 0 1 1 0 8 0 sigapl 424 859 0 804 7 0 7 7 0 8 0 knotepl 120 533 0 0 17 0 17 17 0 8 0 kqueuepl 224 167 0 151 3 2 1 2 0 8 0 pipepl 344 144 0 117 3 0 3 3 0 8 0 fdescpl 528 834 0 802 3 0 3 3 0 8 0 filepl 160 4673 0 4432 17 2 15 15 0 8 4 lockfpl 104 255 0 252 2 0 2 2 0 8 1 lockfspl 48 116 0 113 1 0 1 1 0 8 0 sessionpl 144 24 0 15 1 0 1 1 0 8 0 pgrppl 48 42 0 25 1 0 1 1 0 8 0 ucredpl 104 813 0 800 1 0 1 1 0 8 0 zombiepl 144 968 0 967 1 0 1 1 0 8 0 processpl 1232 859 0 804 5 0 5 5 0 8 0 procpl 664 1611 0 1539 8 1 7 7 0 8 0 sosppl 168 4 0 4 1 1 0 1 0 8 0 sockpl 752 981 0 944 14 3 11 11 0 8 6 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 103 0 0 13 0 13 13 0 8 0 mcl2k 2048 22 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 172 0 0 11 0 11 11 0 8 0 bufpl 280 4984 0 125 348 0 348 348 0 8 0 anonpl 32 8802 0 0 71 0 71 71 0 246 0 amapchunkpl 152 22753 0 22025 40 9 31 34 0 158 2 amappl16 200 2949 0 2914 25 12 13 15 0 8 7 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 148 0 136 1 0 1 1 0 8 0 amappl13 176 67 0 66 1 0 1 1 0 8 0 amappl12 168 1495 0 1463 4 2 2 3 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 11 0 11 1 1 0 1 0 8 0 amappl9 144 253 0 253 1 1 0 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 111 0 99 1 0 1 1 0 8 0 amappl6 120 202 0 198 1 0 1 1 0 8 0 amappl5 112 130 0 120 1 0 1 1 0 8 0 amappl4 104 326 0 306 1 0 1 1 0 8 0 amappl3 96 3669 0 3563 4 1 3 3 0 8 0 amappl2 88 1081 0 1003 2 0 2 2 0 8 0 amappl1 80 10641 0 10026 16 1 15 15 0 8 1 amappl 88 6075 0 5892 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 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 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 26 0 2 1 0 1 1 0 8 0 uaddrrnd 24 834 0 802 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 834 0 802 1 0 1 1 0 8 0 vmmpekpl 168 8363 0 8330 2 0 2 2 0 8 0 vmmpepl 168 59632 0 57556 102 2 100 101 0 357 7 vmsppl 488 833 0 802 6 1 5 5 0 8 1 rwobjpl 80 21203 0 17494 77 1 76 76 0 8 0 pdppl 4096 1676 0 1604 100 26 74 84 0 8 2 pvpl 32 16825 0 0 136 0 136 136 0 265 0 pmappl 256 833 0 802 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 274 0 35 7 0 7 7 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(18) at mtx_enter+0x4a sys/kern/kern_lock.c:260 clockintr_unbind(ffff800001575c30,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff800001560000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:582 dtclose(11e5f,41,2000,ffff800035817a28) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,41,2000,ffff800035817a28) at dtclose+0x109 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003bc2cf80) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806da35c10,41,fffffd80097fb3a8,ffff800035817a28) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806051acf8,ffff800035817a28) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806051acf8,ffff800035817a28) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806051acf8,ffff800035817a28) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806051acf8,ffff800035817a28) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff800035817a28) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff800035817a28,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff800035817a28,ffff80003bc2d2f0,ffff80003bc2d240) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003bc2d2f0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003bc2d2f0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7879467fa140, count: -15 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: 0x6fd37856cfa0, 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: 0x6fd37856cfa0, count: -3