uvm_fault(0xfffffd807c6e3018, 0xf, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND *428020 25591 0 0 0x4000000 0 syz-executor ktrops(ffff80002a8ab790,ffffffffffffffff,0,80000008,fffffd805a95f110,fffffd8007bfb8f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a8ab790,ffffffffffffffff,0,80000008,fffffd805a95f110,fffffd8007bfb8f0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805a95f110,4,8,0,ffff80002a8ab790) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805a95f110,4,8,0,ffff80002a8ab790) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a8ab790,ffff80003995fd30,ffff80003995fc80) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003995fd30) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003995fd30) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x14a3a88a600, count: 10 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(0xfffffd807c6e3018, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a8ab790,ffffffffffffffff,0,80000008,fffffd805a95f110,fffffd8007bfb8f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a8ab790,ffffffffffffffff,0,80000008,fffffd805a95f110,fffffd8007bfb8f0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805a95f110,4,8,0,ffff80002a8ab790) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805a95f110,4,8,0,ffff80002a8ab790) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a8ab790,ffff80003995fd30,ffff80003995fc80) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003995fd30) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003995fd30) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x14a3a88a600, count: -5 ddb> show registers rdi 0xffff80003393c000 rsi 0x7e3 rbp 0xffff80003995fa50 rbx 0xfffffd8007bfb8f0 rdx 0xffff80003393c000 rcx 0x7e2 rax 0xffffffff813ea683 ktrops+0x43 r8 0xfffffd805a95f110 r9 0xfffffd8007bfb8f0 r10 0x4e248a0181bb1047 r11 0xff02cb0f3c71caa r12 0xffff80002a8ab790 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000008 __kernel_virt_to_phys+0x8 rip 0xffffffff813ea698 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003995f9d0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=428020 pid=25591 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7f4d18,0xffff80002a8aa578 process=0xffff8000389504a8 user=0xffff80003995a000, vmspace=0xfffffd807c6e3018 estcpu=36, cpticks=5, pctcpu=0.0, user=0, sys=5, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 25591 436058 68826 0 2 0 syz-executor *25591 428020 68826 0 7 0x4000000 syz-executor 52232 370450 28899 0 3 0x80 nanoslp syz-executor 52232 462397 28899 0 3 0x4000080 ttyin syz-executor 52232 404212 28899 0 3 0x4000080 fsleep syz-executor 18489 450251 71956 0 2 0 syz-executor 18489 65668 71956 0 3 0x4000080 fsleep syz-executor 18489 142134 71956 0 3 0x4000080 fsleep syz-executor 89498 373253 3825 0 2 0 syz-executor 89498 197260 3825 0 3 0x4000080 nanoslp syz-executor 87187 260159 0 0 3 0x14200 acct acct 30995 247746 0 0 3 0x14280 nfsidl nfsio 96735 348061 0 0 3 0x14280 nfsidl nfsio 93682 475541 0 0 3 0x14280 nfsidl nfsio 65296 464898 0 0 3 0x14280 nfsidl nfsio 82424 308964 0 0 3 0x14280 nfsidl nfsio 50360 62033 0 0 3 0x14280 nfsidl nfsio 38433 8662 0 0 3 0x14280 nfsidl nfsio 89389 438053 0 0 3 0x14280 nfsidl nfsio 48769 292205 0 0 3 0x14280 nfsidl nfsio 77293 468719 0 0 3 0x14280 nfsidl nfsio 93085 469202 0 0 3 0x14280 nfsidl nfsio 36783 124025 0 0 3 0x14280 nfsidl nfsio 25243 117470 0 0 3 0x14280 nfsidl nfsio 21924 58474 0 0 3 0x14280 nfsidl nfsio 13125 451831 0 0 3 0x14280 nfsidl nfsio 49675 518184 0 0 3 0x14280 nfsidl nfsio 20157 38784 0 0 3 0x14280 nfsidl nfsio 31001 46392 0 0 3 0x14280 nfsidl nfsio 45966 230964 0 0 3 0x14280 nfsidl nfsio 84985 320982 0 0 3 0x14280 nfsidl nfsio 71956 392513 84416 0 3 0x82 nanoslp syz-executor 32727 260670 0 0 3 0x14200 bored sosplice 28958 98415 84416 0 2 0x2 syz-executor 62567 391561 84416 0 3 0x82 nanoslp syz-executor 28899 432668 84416 0 3 0x82 nanoslp syz-executor 68826 113190 84416 0 3 0x82 nanoslp syz-executor 3825 352793 84416 0 3 0x82 nanoslp syz-executor 68708 422964 84416 0 2 0x2 syz-executor 42374 429296 84416 0 2 0x2 syz-executor 84416 67862 97196 0 3 0x82 kqread syz-executor 97196 311437 17128 0 3 0x10008a sigsusp ksh 17128 425818 33017 0 3 0x98 kqread sshd-session 33017 213092 83235 0 3 0x92 kqread sshd-session 46160 201962 1 0 3 0x100083 ttyopn getty 83235 64997 1 0 3 0x88 kqread sshd 74740 68177 1288 73 3 0x1100090 kqread syslogd 1288 346806 1 0 3 0x100082 sbwait syslogd 96147 120563 1 0 3 0x100080 kqread resolvd 71152 8445 4838 77 3 0x100092 kqread dhcpleased 39322 323 4838 77 3 0x100092 kqread dhcpleased 4838 214106 1 0 3 0x80 kqread dhcpleased 42988 344693 0 0 3 0x14200 bored smr 77945 519840 0 0 2 0x14200 zerothread 65661 430293 0 0 3 0x14200 aiodoned aiodoned 69317 466624 0 0 3 0x14200 syncer update 25475 174564 0 0 3 0x14200 cleaner cleaner 51737 60941 0 0 3 0x14200 reaper reaper 57450 285582 0 0 3 0x14200 pgdaemon pagedaemon 16766 314386 0 0 3 0x14200 bored viomb 59111 53065 0 0 3 0x40014200 acpi0 acpi0 8882 425117 0 0 3 0x14200 bored softnet7 25401 208003 0 0 3 0x14200 bored softnet6 20566 360081 0 0 3 0x14200 bored softnet5 33938 75279 0 0 3 0x14200 bored softnet4 90126 449686 0 0 3 0x14200 bored softnet3 9023 511391 0 0 3 0x14200 bored softnet2 91395 165099 0 0 3 0x14200 bored softnet1 66522 65905 0 0 3 0x14200 bored softnet0 51889 3396 0 0 3 0x14200 bored systqmp 12559 489897 0 0 3 0x14200 bored systq 29450 414365 0 0 3 0x40014200 tmoslp softclock 39198 397548 0 0 3 0x40014200 idle0 1 166146 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 10186 11050K 12233K 166960K 12951 0 pcb 18 16K 18K 166960K 457 0 rtable 130 8K 9K 166960K 423 0 pf 31 13K 14K 166960K 119 0 ifaddr 28 4K 7K 166960K 96 0 ifgroup 46 2K 2K 166960K 161 0 sysctl 4 1K 9K 166960K 19 0 counters 31 17K 18K 166960K 90 0 ioctlops 0 0K 4K 166960K 451 0 iov 0 0K 28K 166960K 322 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1517 95K 96K 166960K 2471 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 10K 14K 166960K 36 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 48 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 240K 166960K 1307 0 sigio 0 0K 0K 166960K 100 0 proc 60 59K 108K 166960K 651 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 307 0 in_multi 47 3K 7K 166960K 169 0 ether_multi 1 0K 0K 166960K 17 0 mrt 2 0K 0K 166960K 18 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 109 493K 493K 166960K 109 0 exec 0 0K 1K 166960K 464 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 224 136K 156K 166960K 12928 0 UVM aobj 133 4K 4K 166960K 137 0 pinsyscall 36 72K 94K 166960K 2358 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 82 0 NDP 10 0K 2K 166960K 67 0 temp 79 8644K 8720K 166960K 76474 0 kqueue 14 22K 30K 166960K 244 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 120 112 0 109 1 0 1 1 0 8 0 rtentry 136 129 0 88 4 0 4 4 0 8 0 unpcb 144 1552 0 1537 6 0 6 6 0 8 5 syncache 336 7 0 7 1 0 1 1 0 8 1 tcpqe 32 3 0 3 1 0 1 1 0 8 1 tcpcb 736 570 0 563 7 0 7 7 0 8 5 arp 88 13 0 7 1 0 1 1 0 8 0 ipq 40 6 0 4 1 0 1 1 0 8 0 ipqe 40 14 0 12 1 0 1 1 0 8 0 inpcb 328 1845 0 1834 10 1 9 10 0 8 7 ip6q 72 6 0 2 1 0 1 1 0 8 0 ip6af 40 10 0 4 1 0 1 1 0 8 0 nd6 104 20 0 14 1 0 1 1 0 8 0 pkpcb 40 5 0 5 1 0 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 2 0 2 1 0 1 1 0 8 1 ppxss 1072 44 0 44 1 0 1 1 0 8 1 pppxif 1384 2 0 2 1 0 1 1 0 8 1 pfstscr 40 2 0 2 1 0 1 1 0 8 1 pfstitem 24 1 0 0 1 0 1 1 0 8 0 pfstkey 128 35 0 34 1 0 1 1 0 8 0 pfstate 384 35 0 34 1 0 1 1 0 8 0 pfrule 1344 2 0 1 1 0 1 1 0 8 0 rttmr 136 3 0 3 1 0 1 1 0 8 1 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 673 0 453 28 5 23 28 0 8 8 art_table 40 677 0 453 5 0 5 5 0 8 0 art_node 32 128 0 93 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 45 0 35 1 0 1 1 0 8 0 shmpl 112 134 0 4 4 0 4 4 0 8 0 dirhash 1024 31 0 14 3 0 3 3 0 8 0 dino2pl 256 3894 0 2395 95 0 95 95 0 8 0 ffsino 256 3894 0 2395 95 0 95 95 0 8 0 nchpl 144 5774 0 4088 63 0 63 63 0 8 0 rtmask 32 6 0 6 1 0 1 1 0 8 1 uvmvnodes 80 4585 0 0 94 0 94 94 0 8 0 vnodes 216 4585 0 0 255 0 255 255 0 8 0 namei 1024 21558 0 21558 2 0 2 2 0 8 2 kstatmem 264 96 0 76 3 0 3 3 0 8 1 scsiplug 72 4 0 4 1 0 1 1 0 8 1 scxspl 216 24458 0 24458 8 0 8 8 1 8 8 plimitpl 152 264 0 246 1 0 1 1 0 8 0 sigapl 424 1592 0 1523 9 0 9 9 0 8 0 knotepl 120 328844 0 328795 37 26 11 19 0 8 8 kqueuepl 184 643 0 633 4 0 4 4 0 8 3 pipepl 304 279 0 252 5 0 5 5 0 8 2 fdescpl 448 1546 0 1519 5 0 5 5 0 8 1 filepl 120 11758 0 11531 15 0 15 15 0 8 7 lockfpl 104 485 0 482 1 0 1 1 0 8 0 lockfspl 48 206 0 203 1 0 1 1 0 8 0 sessionpl 144 26 0 18 1 0 1 1 0 8 0 pgrppl 48 56 0 39 1 0 1 1 0 8 0 ucredpl 104 1586 0 1574 1 0 1 1 0 8 0 zombiepl 144 1524 0 1523 1 0 1 1 0 8 0 processpl 1152 1592 0 1523 6 0 6 6 0 8 0 procpl 664 3371 0 3296 8 0 8 8 0 8 0 sosppl 168 6 0 6 1 0 1 1 0 8 1 sockpl 552 3565 0 3536 21 9 12 16 0 8 8 mcl64k 65536 143 0 143 1 0 1 1 0 8 1 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl12k 12288 3 0 3 1 0 1 1 0 8 1 mcl8k 8192 18 0 18 1 0 1 1 0 8 1 mcl4k 4096 4061 0 4009 14 0 14 14 0 8 6 mcl2k 2048 1956 0 1948 8 0 8 8 0 8 6 mtagpl 96 14 0 11 1 0 1 1 0 8 0 mbufpl 256 16462 0 16332 27 5 22 27 0 8 8 bufpl 280 9658 0 3430 445 0 445 445 0 8 0 anonpl 24 266536 0 258266 88 0 88 88 0 187 12 amapchunkpl 152 44870 0 44325 35 0 35 35 0 158 10 amappl16 200 5540 0 5272 51 24 27 27 0 8 0 amappl15 192 45 0 45 1 0 1 1 0 8 1 amappl14 184 200 0 190 1 0 1 1 0 8 0 amappl13 176 13 0 13 1 0 1 1 0 8 1 amappl12 168 2171 0 2144 2 0 2 2 0 8 0 amappl11 160 46 0 36 1 0 1 1 0 8 0 amappl10 152 26 0 26 1 0 1 1 0 8 1 amappl9 144 251 0 250 1 0 1 1 0 8 0 amappl8 136 22 0 20 1 0 1 1 0 8 0 amappl7 128 114 0 103 1 0 1 1 0 8 0 amappl6 120 187 0 182 1 0 1 1 0 8 0 amappl5 112 122 0 115 1 0 1 1 0 8 0 amappl4 104 281 0 263 1 0 1 1 0 8 0 amappl3 96 8809 0 8706 4 0 4 4 0 8 0 amappl2 88 654 0 596 2 0 2 2 0 8 0 amappl1 80 13281 0 12732 13 0 13 13 0 8 0 amappl 88 11998 0 11838 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma2048 2048 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 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 20 0 19 1 0 1 1 0 8 0 aobjpl 72 136 0 4 3 0 3 3 0 8 0 uaddrrnd 24 1546 0 1519 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1546 0 1519 1 0 1 1 0 8 0 vmmpekpl 168 12927 0 12884 3 0 3 3 0 8 0 vmmpepl 168 102211 0 100176 106 0 106 106 0 357 4 vmsppl 368 1545 0 1519 4 0 4 4 0 8 1 rwobjpl 40 32288 0 26467 60 0 60 60 0 8 0 pdppl 4096 3098 0 3038 112 46 66 80 0 8 6 pvpl 32 710998 0 695565 167 0 167 167 0 265 24 pmappl 216 1545 0 1519 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 414 0 56 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a8ab790,ffffffffffffffff,0,80000008,fffffd805a95f110,fffffd8007bfb8f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a8ab790,ffffffffffffffff,0,80000008,fffffd805a95f110,fffffd8007bfb8f0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805a95f110,4,8,0,ffff80002a8ab790) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805a95f110,4,8,0,ffff80002a8ab790) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a8ab790,ffff80003995fd30,ffff80003995fc80) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003995fd30) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003995fd30) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x14a3a88a600, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a8ab790,ffffffffffffffff,0,80000008,fffffd805a95f110,fffffd8007bfb8f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a8ab790,ffffffffffffffff,0,80000008,fffffd805a95f110,fffffd8007bfb8f0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805a95f110,4,8,0,ffff80002a8ab790) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805a95f110,4,8,0,ffff80002a8ab790) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a8ab790,ffff80003995fd30,ffff80003995fc80) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003995fd30) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003995fd30) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x14a3a88a600, count: -5