login: uvm_fault(0xfffffd806c223b90, 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 dt_ioctl_record_stop(ffff800001490d80) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,1,2000,ffff80003c94bca8) at dtclose+0xd9 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80003c94bca8) at dtclose+0xd9 sys/dev/dt/dt_dev.c:239 spec_close(ffff800035d13950) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8068f8f8a0,1,fffffd8007bfb4e0,ffff80003c94bca8) at VOP_CLOSE+0x129 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c208f08,ffff80003c94bca8) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c208f08,ffff80003c94bca8) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd806c208f08,ffff80003c94bca8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c208f08,ffff80003c94bca8) at closef+0x190 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c94bca8) at fdfree+0x115 sys/kern/kern_descrip.c:1195 exit1(ffff80003c94bca8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c94bca8,ffff800035d13cb0,ffff800035d13c00) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800035d13cb0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800035d13cb0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77eecd98c400, 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: uvm_fault(0xfffffd806c223b90, 0x0, 0, 1) -> e ddb> trace dt_ioctl_record_stop(ffff800001490d80) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,1,2000,ffff80003c94bca8) at dtclose+0xd9 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80003c94bca8) at dtclose+0xd9 sys/dev/dt/dt_dev.c:239 spec_close(ffff800035d13950) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8068f8f8a0,1,fffffd8007bfb4e0,ffff80003c94bca8) at VOP_CLOSE+0x129 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c208f08,ffff80003c94bca8) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c208f08,ffff80003c94bca8) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd806c208f08,ffff80003c94bca8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c208f08,ffff80003c94bca8) at closef+0x190 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c94bca8) at fdfree+0x115 sys/kern/kern_descrip.c:1195 exit1(ffff80003c94bca8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c94bca8,ffff800035d13cb0,ffff800035d13c00) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800035d13cb0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800035d13cb0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77eecd98c400, count: -12 ddb> show registers rdi 0 rsi 0 rbp 0xffff800035d13880 rbx 0x1 rdx 0 rcx 0xffff80003c94bca8 rax 0xffff80003c94bca8 r8 0xffffffffffffffff r9 0 r10 0xada852f675f5e1d6 r11 0x2131b0a6aa040b7a r12 0 r13 0 r14 0 r15 0xffff8000014df900 rip 0xffffffff815a31d8 dt_ioctl_record_stop+0x108 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800035d13850 ss 0x10 dt_ioctl_record_stop+0x108: movq 0(%r14),%r14 ddb> show proc PROC (syz-executor) tid=233164 pid=73963 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c94bca8 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003c94ba10,0xffff80002a7cdcb0 process=0xffff8000ffff8018 user=0xffff800035d0e000, vmspace=0xfffffd806c223b90 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 31150 470358 37845 0 2 0 syz-executor 34391 327761 44465 0 3 0x80 nanoslp syz-executor 34391 45880 44465 0 3 0x4000080 kqsel syz-executor 40547 28181 59619 0 3 0x80 nanoslp syz-executor 40547 283676 59619 0 3 0x4000080 lockf syz-executor 40547 310908 59619 0 3 0x4000080 fsleep syz-executor 8990 504763 86823 0 3 0x80 nanoslp syz-executor 8990 73826 86823 0 3 0x4000080 piperd syz-executor 8990 191434 86823 0 3 0x4000080 fsleep syz-executor 31612 501330 43943 0 3 0x80 nanoslp syz-executor 31612 389984 43943 0 3 0x4000080 ttyin syz-executor 31612 451320 43943 0 3 0x4000080 fsleep syz-executor 80911 337175 0 0 3 0x14200 bored sosplice 7748 142009 1 0 3 0x100083 ttyin getty 58147 405233 5541 0 3 0x82 wait syz-executor 43943 88629 5541 0 3 0x82 nanoslp syz-executor 59619 420495 5541 0 3 0x82 nanoslp syz-executor 47571 105139 5541 0 3 0x82 nanoslp syz-executor 37845 117069 5541 0 3 0x82 nanoslp syz-executor 10066 337440 5541 0 3 0x82 nanoslp syz-executor 86823 22072 5541 0 3 0x82 nanoslp syz-executor 44465 230101 5541 0 3 0x82 nanoslp syz-executor 5541 376495 32153 0 3 0x82 kqread syz-executor 32153 448297 32041 0 3 0x10008a sigsusp ksh 32041 308782 21674 0 3 0x98 kqread sshd-session 21674 4595 55318 0 3 0x92 kqread sshd-session 55318 397496 1 0 3 0x88 kqread sshd 38909 66816 71041 73 3 0x1100090 kqread syslogd 71041 19472 1 0 3 0x100082 sbwait syslogd 51794 20043 1 0 3 0x100080 kqread resolvd 60922 522028 76017 77 3 0x100092 kqread dhcpleased 25093 175269 76017 77 3 0x100092 kqread dhcpleased 76017 317270 1 0 3 0x80 kqread dhcpleased 42325 105947 0 0 3 0x14200 bored smr 20849 387233 0 0 2 0x14200 zerothread 63493 488375 0 0 3 0x14200 aiodoned aiodoned 45177 174646 0 0 3 0x14200 syncer update 22661 142152 0 0 3 0x14200 cleaner cleaner 26680 76798 0 0 3 0x14200 reaper reaper 65010 137333 0 0 3 0x14200 pgdaemon pagedaemon 53914 191733 0 0 3 0x14200 bored viomb 82053 187321 0 0 3 0x40014200 acpi0 acpi0 93210 115063 0 0 3 0x14200 bored softnet0 41140 109781 0 0 3 0x14200 bored systqmp 86523 295678 0 0 3 0x14200 bored systq 85954 112241 0 0 3 0x40014200 tmoslp softclock 13787 67069 0 0 3 0x40014200 idle0 1 318012 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10203 11158K 11315K 166960K 12048 0 pcb 19 14K 16K 166960K 237 0 rtable 207 8K 9K 166960K 455 0 pf 32 13K 20K 166960K 75 0 ifaddr 37 6K 7K 166960K 62 0 ifgroup 50 2K 2K 166960K 83 0 sysctl 3 1K 9K 166960K 10 0 counters 32 17K 18K 166960K 49 0 ioctlops 0 0K 4K 166960K 116 0 iov 0 0K 16K 166960K 26 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1345 85K 85K 166960K 1838 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 10 0K 0K 166960K 15 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 97K 166960K 518 0 sigio 0 0K 0K 166960K 67 0 proc 60 59K 108K 166960K 527 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 115 0 in_multi 78 5K 7K 166960K 122 0 ether_multi 2 0K 0K 166960K 5 0 mrt 3 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 127 572K 572K 166960K 127 0 exec 0 0K 1K 166960K 425 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 238 151K 165K 166960K 6270 0 UVM aobj 12 3K 3K 166960K 14 0 pinsyscall 39 78K 96K 166960K 1595 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 25 0 NDP 11 0K 2K 166960K 38 0 temp 47 8640K 8768K 166960K 17429 0 kqueue 14 22K 28K 166960K 94 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 160 0 157 3 0 3 3 0 8 2 rtentry 136 132 0 51 4 0 4 4 0 8 0 unpcb 144 258 0 243 1 0 1 1 0 8 0 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpcb 736 189 0 182 7 0 7 7 0 8 6 arp 96 21 0 6 1 0 1 1 0 8 0 ipq 40 2 0 1 1 0 1 1 0 8 0 ipqe 40 4 0 3 1 0 1 1 0 8 0 inpcb 328 541 0 526 7 0 7 7 0 8 5 ip6q 72 3 0 1 1 0 1 1 0 8 0 ip6af 40 6 0 3 1 0 1 1 0 8 0 nd6 112 27 0 8 1 0 1 1 0 8 0 pkpcb 40 7 0 7 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 13 0 13 1 0 1 1 0 8 1 pppxif 1384 1 0 1 1 0 1 1 0 8 1 pfosfp 40 1 0 0 1 0 1 1 0 8 0 pfosfpen 112 1 0 0 1 0 1 1 0 8 0 pfrktable 1344 2 0 0 1 0 1 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 2 0 0 1 0 1 1 0 8 0 pfstate 384 1 0 0 1 0 1 1 0 8 0 pfrule 1344 1 0 0 1 0 1 1 0 8 0 rttmr 136 1 0 0 1 0 1 1 0 8 0 art_heap8 4096 3 0 1 3 0 3 3 0 8 1 art_heap4 256 576 0 198 30 0 30 30 0 8 4 art_table 40 579 0 199 5 0 5 5 0 8 0 art_node 32 130 0 57 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 6 1 0 1 1 0 8 1 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 12 0 4 1 0 1 1 0 8 0 shmpl 112 11 0 2 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2449 0 949 95 0 95 95 0 8 0 ffsino 256 2449 0 949 95 0 95 95 0 8 0 nchpl 144 3200 0 1506 64 0 64 64 0 8 0 rtmask 32 3 0 3 1 0 1 1 0 8 1 vnodes 216 2700 0 0 150 0 150 150 0 8 0 namei 1024 10290 0 10290 2 0 2 2 0 8 2 kstatmem 264 44 0 22 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 12063 0 12063 8 0 8 8 1 8 8 plimitpl 152 171 0 155 1 0 1 1 0 8 0 sigapl 424 808 0 764 6 0 6 6 0 8 0 knotepl 120 33759 0 33706 23 13 10 17 0 8 8 kqueuepl 184 123 0 111 1 0 1 1 0 8 0 pipepl 304 144 0 115 3 0 3 3 0 8 0 fdescpl 448 793 0 763 5 0 5 5 0 8 1 filepl 120 4587 0 4358 13 0 13 13 0 8 5 lockfpl 104 175 0 171 1 0 1 1 0 8 0 lockfspl 48 72 0 69 1 0 1 1 0 8 0 sessionpl 144 23 0 15 1 0 1 1 0 8 0 pgrppl 48 35 0 19 1 0 1 1 0 8 0 ucredpl 104 1166 0 1155 1 0 1 1 0 8 0 zombiepl 144 767 0 764 1 0 1 1 0 8 0 processpl 1152 808 0 764 4 0 4 4 0 8 0 procpl 664 1373 0 1322 6 0 6 6 0 8 1 sockpl 552 981 0 948 8 0 8 8 0 8 5 mcl64k 65536 144 0 143 1 0 1 1 0 8 0 mcl9k 9216 65 0 65 1 0 1 1 0 8 1 mcl8k 8192 7 0 7 1 0 1 1 0 8 1 mcl4k 4096 2954 0 2901 15 0 15 15 0 8 7 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 971 0 967 4 0 4 4 0 8 3 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 9090 0 8931 18 0 18 18 0 8 4 bufpl 280 5317 0 122 372 0 372 372 0 8 0 anonpl 24 153083 0 149442 49 0 49 49 0 187 23 amapchunkpl 152 19895 0 19380 29 0 29 29 0 158 7 amappl16 200 3224 0 3195 20 9 11 16 0 8 8 amappl15 192 4 0 4 1 0 1 1 0 8 1 amappl14 184 47 0 47 1 0 1 1 0 8 1 amappl13 176 408 0 407 1 0 1 1 0 8 0 amappl12 168 1135 0 1097 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 0 1 1 0 8 1 amappl10 152 43 0 33 1 0 1 1 0 8 0 amappl9 144 246 0 246 1 0 1 1 0 8 1 amappl8 136 24 0 22 1 0 1 1 0 8 0 amappl7 128 82 0 81 1 0 1 1 0 8 0 amappl6 120 264 0 253 1 0 1 1 0 8 0 amappl5 112 75 0 68 1 0 1 1 0 8 0 amappl4 104 394 0 370 1 0 1 1 0 8 0 amappl3 96 3374 0 3284 3 0 3 3 0 8 0 amappl2 88 915 0 845 2 0 2 2 0 8 0 amappl1 80 10595 0 10060 13 0 13 13 0 8 1 amappl 88 5492 0 5322 5 0 5 5 0 92 0 uvmvnodes 80 2700 0 0 56 0 56 56 0 8 0 dma32768 32768 1 0 1 1 0 1 1 0 8 1 dma8192 8192 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 0 1 1 0 8 1 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 254 0 254 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 13 0 2 1 0 1 1 0 8 0 uaddrrnd 24 793 0 763 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 793 0 763 1 0 1 1 0 8 0 vmmpekpl 168 7671 0 7638 2 0 2 2 0 8 0 vmmpepl 168 57387 0 55571 89 0 89 89 0 357 8 vmsppl 368 792 0 763 4 0 4 4 0 8 1 rwobjpl 40 20939 0 17386 36 0 36 36 0 8 0 pdppl 4096 1592 0 1526 100 34 66 82 0 8 0 pvpl 32 379075 0 369819 121 0 121 121 0 265 34 pmappl 216 792 0 763 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 390 0 34 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace dt_ioctl_record_stop(ffff800001490d80) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,1,2000,ffff80003c94bca8) at dtclose+0xd9 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80003c94bca8) at dtclose+0xd9 sys/dev/dt/dt_dev.c:239 spec_close(ffff800035d13950) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8068f8f8a0,1,fffffd8007bfb4e0,ffff80003c94bca8) at VOP_CLOSE+0x129 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c208f08,ffff80003c94bca8) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c208f08,ffff80003c94bca8) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd806c208f08,ffff80003c94bca8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c208f08,ffff80003c94bca8) at closef+0x190 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c94bca8) at fdfree+0x115 sys/kern/kern_descrip.c:1195 exit1(ffff80003c94bca8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c94bca8,ffff800035d13cb0,ffff800035d13c00) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800035d13cb0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800035d13cb0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77eecd98c400, count: -12 ddb> machine ddbcpu 1 No such command ddb> trace dt_ioctl_record_stop(ffff800001490d80) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(11e5f,1,2000,ffff80003c94bca8) at dtclose+0xd9 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80003c94bca8) at dtclose+0xd9 sys/dev/dt/dt_dev.c:239 spec_close(ffff800035d13950) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8068f8f8a0,1,fffffd8007bfb4e0,ffff80003c94bca8) at VOP_CLOSE+0x129 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c208f08,ffff80003c94bca8) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c208f08,ffff80003c94bca8) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd806c208f08,ffff80003c94bca8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c208f08,ffff80003c94bca8) at closef+0x190 sys/kern/kern_descrip.c:1264 fdfree(ffff80003c94bca8) at fdfree+0x115 sys/kern/kern_descrip.c:1195 exit1(ffff80003c94bca8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80003c94bca8,ffff800035d13cb0,ffff800035d13c00) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800035d13cb0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800035d13cb0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77eecd98c400, count: -12