uvm_fault(0xffffffff83a1fad0, 0xffff8000199b5ff8, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ffs_indirtrunc+0x689: movq 0(%rax,%rbx,8),%rbx TID PID UID PRFLAGS PFLAGS CPU COMMAND ffs_indirtrunc(fffffd806cf59900,fffffffffffffff4,96420,ffffffffffffffff,0,ffff80002a8b6c88) at ffs_indirtrunc+0x689 sys/ufs/ffs/ffs_inode.c:495 ffs_truncate(fffffd806cf59900,0,0,ffffffffffffffff) at ffs_truncate+0x1036 sys/ufs/ffs/ffs_inode.c:297 ufs_inactive(ffff80002a8b6de0) at ufs_inactive+0x1ff sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806d0dc2c0,ffff80002a7a0fa0) at VOP_INACTIVE+0xfb sys/kern/vfs_vops.c:498 vrele(fffffd806d0dc2c0) at vrele+0x120 sys/kern/vfs_subr.c:837 uvm_unmap_detach(ffff80002a8b6ee0,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1370 uvm_map_teardown(fffffd8077cbe2e8) at uvm_map_teardown+0x357 sys/uvm/uvm_map.c:2536 exit1(ffff80002a7a0fa0,43,0,1) at exit1+0x6e6 sys/kern/kern_exit.c:259 sys_exit(ffff80002a7a0fa0,ffff80002a8b70a0,ffff80002a8b6ff0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a8b70a0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8b70a0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7352d7c4b720, count: 4 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(0xffffffff83a1fad0, 0xffff8000199b5ff8, 0, 1) -> d ddb> trace ffs_indirtrunc(fffffd806cf59900,fffffffffffffff4,96420,ffffffffffffffff,0,ffff80002a8b6c88) at ffs_indirtrunc+0x689 sys/ufs/ffs/ffs_inode.c:495 ffs_truncate(fffffd806cf59900,0,0,ffffffffffffffff) at ffs_truncate+0x1036 sys/ufs/ffs/ffs_inode.c:297 ufs_inactive(ffff80002a8b6de0) at ufs_inactive+0x1ff sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd806d0dc2c0,ffff80002a7a0fa0) at VOP_INACTIVE+0xfb sys/kern/vfs_vops.c:498 vrele(fffffd806d0dc2c0) at vrele+0x120 sys/kern/vfs_subr.c:837 uvm_unmap_detach(ffff80002a8b6ee0,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1370 uvm_map_teardown(fffffd8077cbe2e8) at uvm_map_teardown+0x357 sys/uvm/uvm_map.c:2536 exit1(ffff80002a7a0fa0,43,0,1) at exit1+0x6e6 sys/kern/kern_exit.c:259 sys_exit(ffff80002a7a0fa0,ffff80002a8b70a0,ffff80002a8b6ff0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a8b70a0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8b70a0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7352d7c4b720, count: -11 ddb> show registers rdi 0x2 rsi 0x2 rbp 0xffff80002a8b6b60 rbx 0x7ff rdx 0 rcx 0xfffffffffffffff4 rax 0xffff8000199b2000 r8 0xffffffffffffffff r9 0xffff80002a8b6c88 r10 0x73af97442000ed0d r11 0xe539ad7d22a2cbe0 r12 0xfffffffffffff7f6 r13 0x1 r14 0x2 r15 0xfffffd806cf59900 rip 0xffffffff82686c39 ffs_indirtrunc+0x689 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a8b6a70 ss 0x10 ffs_indirtrunc+0x689: movq 0(%rax,%rbx,8),%rbx ddb> show proc PROC (syz-executor) tid=76220 pid=63585 tcnt=0 stat=onproc flags process=a proc=2000 runpri=84, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=1 forw=0xffffffffffffffff, list=0xffff80002a7a02a8,0xffff80002a78c2c0 process=0xffff80002a77f610 user=0xffff80002a8b2000, vmspace=0xfffffd8077cbe2e8 estcpu=34, cpticks=14, pctcpu=0.0, user=0, sys=2, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 51571 256682 1 0 3 0x100083 ttyin getty 49039 219671 0 0 3 0x14200 acct acct 74271 194388 0 0 3 0x14280 nfsidl nfsio 96120 385900 0 0 3 0x14280 nfsidl nfsio 37506 281918 0 0 3 0x14280 nfsidl nfsio 10117 412338 0 0 3 0x14280 nfsidl nfsio 37985 304293 0 0 3 0x14280 nfsidl nfsio 41587 264171 0 0 3 0x14280 nfsidl nfsio 45856 308656 0 0 3 0x14280 nfsidl nfsio 5710 437106 0 0 3 0x14280 nfsidl nfsio 46526 515982 0 0 3 0x14280 nfsidl nfsio 4241 22717 0 0 3 0x14280 nfsidl nfsio 89472 469015 0 0 3 0x14280 nfsidl nfsio 48345 328280 0 0 3 0x14280 nfsidl nfsio 17385 404754 0 0 3 0x14280 nfsidl nfsio 5689 288735 0 0 3 0x14280 nfsidl nfsio 23454 7692 0 0 3 0x14280 nfsidl nfsio 33569 220354 0 0 3 0x14280 nfsidl nfsio 44833 498322 0 0 3 0x14280 nfsidl nfsio 59029 422179 0 0 3 0x14280 nfsidl nfsio 62641 508384 0 0 3 0x14280 nfsidl nfsio 68637 364448 0 0 3 0x14280 nfsidl nfsio 53291 456230 1 0 3 0x1000008a kqread sshd 78567 404386 23485 73 3 0x1100090 kqread syslogd 23485 364647 1 0 3 0x100082 sbwait syslogd 60442 263344 1 0 3 0x100080 kqread resolvd 61866 100172 3720 77 3 0x100092 kqread dhcpleased 59212 371548 3720 77 3 0x100092 kqread dhcpleased 3720 398600 1 0 3 0x80 kqread dhcpleased 1174 70236 0 0 3 0x14200 bored smr 42196 180475 0 0 2 0x14200 zerothread 58265 183186 0 0 3 0x14200 aiodoned aiodoned 1598 268665 0 0 3 0x14200 syncer update 20094 280969 0 0 3 0x14200 cleaner cleaner 25241 436609 0 0 3 0x14200 reaper reaper 44787 337230 0 0 3 0x14200 pgdaemon pagedaemon 82796 113376 0 0 3 0x14200 bored viomb 21658 396550 0 0 3 0x40014200 acpi0 acpi0 8696 243607 0 0 3 0x14200 bored softnet0 56138 372167 0 0 3 0x14200 smrbar systqmp 11716 388266 0 0 3 0x14200 bored systq 51354 306982 0 0 3 0x40014200 tmoslp softclock 20052 176145 0 0 3 0x40014200 idle0 1 421131 0 0 3 0x80082 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 11055 12112K 13186K 166960K 14041 0 pcb 17 13K 17K 166960K 183 0 rtable 171 9K 11K 166960K 590 0 pf 29 13K 20K 166960K 296 0 ifaddr 26 4K 7K 166960K 71 0 ifgroup 34 1K 2K 166960K 104 0 sysctl 4 1K 9K 166960K 11 0 counters 29 17K 18K 166960K 54 0 ioctlops 0 0K 4K 166960K 604 0 iov 0 0K 16K 166960K 44 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1455 92K 92K 166960K 2902 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 25 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 44 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 5 16K 106K 166960K 1276 0 sigio 0 0K 0K 166960K 75 0 proc 60 59K 100K 166960K 684 0 subproc 36 2K 5K 166960K 243 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 120 0 in_multi 55 4K 7K 166960K 148 0 ether_multi 1 0K 0K 166960K 5 0 mrt 0 0K 0K 166960K 22 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 554 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 113 99K 177K 166960K 12828 0 UVM aobj 63 3K 5K 166960K 68 0 pinsyscall 21 42K 88K 166960K 2469 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 27 0 NDP 7 0K 2K 166960K 46 0 temp 54 9073K 9138K 166960K 35451 0 kqueue 10 14K 30K 166960K 174 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 120 177 0 174 1 0 1 1 0 8 0 rtentry 136 167 0 107 4 0 4 4 0 8 1 unpcb 144 560 0 548 4 3 1 4 0 8 0 syncache 336 6 0 6 2 1 1 1 0 8 1 tcpqe 32 4 0 4 2 1 1 1 0 8 1 tcpcb 736 332 0 326 8 1 7 7 0 8 6 arp 96 28 0 17 1 0 1 1 0 8 0 ipq 40 9 0 9 1 0 1 1 0 8 1 ipqe 40 17 0 17 1 0 1 1 0 8 1 inpcb 328 861 0 851 9 2 7 7 0 8 5 ip6q 72 5 0 2 1 0 1 1 0 8 0 ip6af 40 12 0 7 1 0 1 1 0 8 0 nd6 112 40 0 27 1 0 1 1 0 8 0 pkpcb 40 5 0 5 2 1 1 1 0 8 1 kcovpl 48 27 0 23 1 0 1 1 0 8 0 ppxss 1072 12 0 12 3 2 1 1 0 8 1 pppxif 1416 2 0 2 2 1 1 1 0 8 1 pfrktable 1344 19 0 14 2 1 1 1 0 8 0 pfsrclim 320 2 0 1 1 0 1 1 0 8 0 pfanchor 1288 7 0 2 2 1 1 1 0 8 0 pftag 88 3 0 2 1 0 1 1 0 8 0 pfqueue 320 3 0 3 2 1 1 1 0 8 1 pfstitem 24 5 0 0 1 0 1 1 0 8 0 pfstkey 128 11 0 8 1 0 1 1 0 8 0 pfstate 384 6 0 3 1 0 1 1 0 8 0 pfrule 1360 37 0 36 3 2 1 1 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 665 0 348 31 2 29 29 0 8 6 art_table 40 668 0 348 5 0 5 5 0 8 0 art_node 32 164 0 111 1 0 1 1 0 8 0 sysvmsgpl 40 79 0 76 2 1 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 41 0 31 1 0 1 1 0 8 0 shmpl 112 65 0 5 2 0 2 2 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 3841 0 2377 92 0 92 92 0 8 0 ffsino 256 3854 0 2390 93 0 93 93 0 8 1 nchpl 144 5515 0 3794 64 0 64 64 0 8 0 rtmask 32 3 0 3 2 2 0 1 0 8 0 vnodes 216 4793 0 0 267 0 267 267 0 8 0 namei 1024 19168 0 19168 5 3 2 2 0 8 2 pfiaddrpl 120 4 0 2 2 1 1 1 0 8 0 kstatmem 264 52 0 38 2 0 2 2 0 8 0 scsiplug 72 3 0 3 2 2 0 1 0 8 0 scxspl 216 25161 0 25161 10 8 2 8 1 8 2 plimitpl 152 445 0 435 1 0 1 1 0 8 0 sigapl 424 1556 0 1506 8 0 8 8 0 8 0 knotepl 120 41430 0 41405 32 22 10 17 0 8 8 kqueuepl 184 384 0 378 6 2 4 4 0 8 3 pipepl 304 315 0 307 5 0 5 5 0 8 2 fdescpl 448 1519 0 1505 4 0 4 4 0 8 0 filepl 120 9558 0 9465 13 2 11 11 0 8 2 lockfpl 104 777 0 775 4 2 2 2 0 8 1 lockfspl 48 304 0 302 1 0 1 1 0 8 0 sessionpl 144 68 0 60 1 0 1 1 0 8 0 pgrppl 48 109 0 97 1 0 1 1 0 8 0 ucredpl 104 2188 0 2178 1 0 1 1 0 8 0 zombiepl 144 1742 0 1736 1 0 1 1 0 8 0 processpl 1152 1556 0 1506 5 0 5 5 0 8 0 procpl 664 3114 0 3064 8 1 7 7 0 8 0 sockpl 552 1679 0 1654 13 5 8 8 0 8 5 mcl64k 65536 52 0 52 3 2 1 1 0 8 1 mcl16k 16384 10 0 10 3 2 1 1 0 8 1 mcl12k 12288 4 0 4 3 2 1 1 0 8 1 mcl9k 9216 4 0 4 2 1 1 1 0 8 1 mcl8k 8192 29 0 29 3 2 1 1 0 8 1 mcl4k 4096 4133 0 4081 16 7 9 14 0 8 1 mcl2k2 2112 4 0 4 2 1 1 1 0 8 1 mcl2k 2048 1259 0 1254 4 2 2 3 0 8 0 mtagpl 96 27 0 27 1 0 1 1 0 8 1 mbufpl 256 14962 0 14892 25 6 19 19 0 8 2 bufpl 280 9052 0 2838 445 0 445 445 0 8 0 anonpl 24 229639 0 228044 90 32 58 58 0 187 19 amapchunkpl 152 42655 0 42495 52 24 28 35 0 158 13 amappl16 200 4108 0 4091 29 15 14 16 0 8 8 amappl15 192 19 0 19 1 1 0 1 0 8 0 amappl14 184 451 0 451 1 0 1 1 0 8 1 amappl13 176 130 0 122 1 0 1 1 0 8 0 amappl12 168 1795 0 1780 2 0 2 2 0 8 0 amappl11 160 47 0 47 1 0 1 1 0 8 1 amappl10 152 57 0 47 1 0 1 1 0 8 0 amappl9 144 318 0 318 1 1 0 1 0 8 0 amappl8 136 112 0 111 1 0 1 1 0 8 0 amappl7 128 168 0 158 1 0 1 1 0 8 0 amappl6 120 195 0 195 1 0 1 1 0 8 1 amappl5 112 96 0 91 1 0 1 1 0 8 0 amappl4 104 298 0 282 1 0 1 1 0 8 0 amappl3 96 8570 0 8529 6 2 4 4 0 8 0 amappl2 88 589 0 550 2 0 2 2 0 8 0 amappl1 80 15519 0 15189 17 2 15 15 0 8 4 amappl 88 11841 0 11780 6 1 5 5 0 92 0 uvmvnodes 80 119 0 0 3 0 3 3 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 2 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 8 0 8 2 2 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 67 0 5 2 0 2 2 0 8 0 uaddrrnd 24 1519 0 1505 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1519 0 1505 1 0 1 1 0 8 0 vmmpekpl 168 13844 0 13815 3 0 3 3 0 8 0 vmmpepl 168 102989 0 102076 130 26 104 104 0 357 32 vmsppl 368 1518 0 1504 4 1 3 4 0 8 0 rwobjpl 40 28726 0 27997 17 2 15 15 0 8 1 pdppl 4096 3044 0 3008 116 58 58 74 0 8 22 pvpl 32 673829 0 669918 182 59 123 139 0 265 39 pmappl 216 1518 0 1504 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 421 0 91 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb>