uvm_fault(0xfffffd806f0ffac8, 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 *273037 65949 0 0 0x4000000 0 syz-executor ktrops(ffff80002a5b9bf0,ffffffffffffffff,0,80001100,fffffd8073f57958,fffffd807f7d7548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a5b9bf0,ffffffffffffffff,0,80001100,fffffd8073f57958,fffffd807f7d7548) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8073f57958,4,1100,ffffffff,ffff80002a5b9bf0) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8073f57958,4,1100,ffffffff,ffff80002a5b9bf0) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a5b9bf0,ffff80002a4c1bd0,ffff80002a4c1b20) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002a4c1bd0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x96bb62f4760, 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(0xfffffd806f0ffac8, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a5b9bf0,ffffffffffffffff,0,80001100,fffffd8073f57958,fffffd807f7d7548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a5b9bf0,ffffffffffffffff,0,80001100,fffffd8073f57958,fffffd807f7d7548) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8073f57958,4,1100,ffffffff,ffff80002a5b9bf0) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8073f57958,4,1100,ffffffff,ffff80002a5b9bf0) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a5b9bf0,ffff80002a4c1bd0,ffff80002a4c1b20) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002a4c1bd0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x96bb62f4760, count: -5 ddb> show registers rdi 0xffff80002d9e8000 rsi 0x798 rbp 0xffff80002a4c18f0 rbx 0xfffffd807f7d7548 rdx 0xffff80002d9e8000 rcx 0x797 rax 0xffffffff81562293 ktrops+0x43 r8 0xfffffd8073f57958 r9 0xfffffd807f7d7548 r10 0x4c04f5e9a7c07e58 r11 0xf1f37f9146c0abbd r12 0xffff80002a5b9bf0 r13 0x1 r14 0xffffffffffffffff r15 0x80001100 __kernel_virt_to_phys+0x1100 rip 0xffffffff815622a8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a4c1870 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=273037 pid=65949 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=0xffff80002a5b91d0,0xffffffff835e3490 process=0xffff8000ffffb7c0 user=0xffff80002a4bc000, vmspace=0xfffffd806f0ffac8 estcpu=36, cpticks=20, pctcpu=0.0, user=0, sys=20, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 65949 365912 18707 0 3 0x80 fsleep syz-executor *65949 273037 18707 0 7 0x4000000 syz-executor 74473 18738 15346 0 3 0x80 fsleep syz-executor 74473 186780 15346 0 3 0x4000080 bell syz-executor 69085 143833 71046 0 3 0x80 fsleep syz-executor 69085 522781 71046 0 3 0x4000080 pipewr syz-executor 17789 500444 7773 0 2 0x2 syz-executor 63264 510257 1 0 3 0x100083 ttyin getty 4417 375274 7773 0 2 0x482 syz-executor 71046 430079 7773 0 2 0x482 syz-executor 15346 396616 7773 0 2 0x482 syz-executor 58373 113189 7773 0 2 0x2 syz-executor 18707 125182 7773 0 2 0x482 syz-executor 41008 393714 7773 0 2 0x2 syz-executor 15553 270329 7773 0 2 0x2 syz-executor 7686 28871 0 0 3 0x14200 bored sosplice 42229 101507 0 0 3 0x14280 nfsidl nfsio 1106 330788 0 0 3 0x14280 nfsidl nfsio 95775 77617 0 0 3 0x14280 nfsidl nfsio 33950 193055 0 0 3 0x14280 nfsidl nfsio 2152 30069 0 0 3 0x14280 nfsidl nfsio 24134 411933 0 0 3 0x14280 nfsidl nfsio 78827 324298 0 0 3 0x14280 nfsidl nfsio 79741 15869 0 0 3 0x14280 nfsidl nfsio 9134 294677 0 0 3 0x14280 nfsidl nfsio 90379 360365 0 0 3 0x14280 nfsidl nfsio 62174 382861 0 0 3 0x14280 nfsidl nfsio 24308 382937 0 0 3 0x14280 nfsidl nfsio 4950 501375 0 0 3 0x14280 nfsidl nfsio 68036 35061 0 0 3 0x14280 nfsidl nfsio 87951 464952 0 0 3 0x14280 nfsidl nfsio 9341 298363 0 0 3 0x14280 nfsidl nfsio 42767 95265 0 0 3 0x14280 nfsidl nfsio 40738 192410 0 0 3 0x14280 nfsidl nfsio 93844 302231 0 0 3 0x14280 nfsidl nfsio 95034 60083 0 0 3 0x14280 nfsidl nfsio 7773 70962 26633 0 3 0x82 kqread syz-executor 26633 383127 36005 0 3 0x10008a sigsusp ksh 36005 251797 62781 0 3 0x98 kqread sshd-session 62781 484817 1 0 3 0x92 kqread sshd-session 65283 436935 32364 73 3 0x1100090 kqread syslogd 32364 105677 1 0 3 0x100082 sbwait syslogd 814 472885 1 0 3 0x100080 kqread resolvd 32956 452231 63844 77 3 0x100092 kqread dhcpleased 98398 489425 63844 77 3 0x100092 kqread dhcpleased 63844 488039 1 0 3 0x80 kqread dhcpleased 81121 445035 0 0 2 0x14200 smr 67760 459612 0 0 2 0x14200 zerothread 99786 85477 0 0 3 0x14200 aiodoned aiodoned 24459 31866 0 0 3 0x14200 syncer update 83991 471955 0 0 3 0x14200 cleaner cleaner 79023 187433 0 0 3 0x14200 reaper reaper 96412 192947 0 0 3 0x14200 pgdaemon pagedaemon 32449 109372 0 0 3 0x14200 bored viomb 10190 285755 0 0 3 0x40014200 acpi0 acpi0 15066 385203 0 0 3 0x14200 bored softnet3 22502 173424 0 0 3 0x14200 bored softnet2 83701 163144 0 0 3 0x14200 bored softnet1 2031 76918 0 0 2 0x14200 softnet0 42700 15356 0 0 3 0x14200 bored systqmp 84039 14110 0 0 3 0x14200 bored systq 8234 283479 0 0 2 0x40014200 softclock 30996 190082 0 0 3 0x40014200 idle0 1 423295 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10201 14199K 14446K 166960K 12833 0 pcb 17 18K 20K 166960K 466 0 rtable 195 8K 10K 166960K 1814 0 pf 38 14K 22K 166960K 164 0 ifaddr 39 6K 8K 166960K 238 0 ifgroup 59 2K 2K 166960K 256 0 sysctl 2 0K 1K 166960K 6 0 counters 32 17K 18K 166960K 82 0 ioctlops 0 0K 4K 166960K 288 0 iov 0 0K 32K 166960K 140 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1498 94K 95K 166960K 3100 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 20 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 21 0 dirhash 12 2K 3K 166960K 33 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 14 49K 93K 166960K 1741 0 sigio 0 0K 0K 166960K 37 0 proc 60 59K 91K 166960K 1772 0 subproc 104 6K 7K 166960K 650 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 160 0 in_multi 77 5K 7K 166960K 625 0 ether_multi 1 0K 0K 166960K 8 0 mrt 1 0K 0K 166960K 4 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 1092 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 179 71K 81K 166960K 14869 0 UVM aobj 21 2K 4K 166960K 29 0 pinsyscall 33 66K 95K 166960K 3873 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 53 0 NDP 15 0K 1K 166960K 167 0 temp 76 6816K 6956K 166960K 56867 0 kqueue 12 18K 30K 166960K 176 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 120 206 0 201 1 0 1 1 0 8 0 rtentry 112 637 0 554 4 0 4 4 0 8 0 unpcb 144 1108 0 1093 6 0 6 6 0 8 5 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 808 461 0 458 8 0 8 8 0 8 7 arp 88 114 0 99 1 0 1 1 0 8 0 ipq 40 3 0 3 1 0 1 1 0 8 1 ipqe 40 114 0 114 1 0 1 1 0 8 1 inpcb 336 2120 0 2113 21 11 10 13 0 8 8 nd6 104 160 0 141 1 0 1 1 0 8 0 pkpcb 40 35 0 35 1 0 1 1 0 8 1 kcovpl 48 50 0 42 1 0 1 1 0 8 0 ppxss 1072 3 0 3 1 0 1 1 0 8 1 pfanchor 1288 1 0 1 1 0 1 1 0 8 1 pfstkey 128 5 0 5 1 0 1 1 0 8 1 pfstate 344 3 0 3 1 0 1 1 0 8 1 pfrule 1344 3 0 3 1 0 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 2459 0 2101 31 3 28 30 0 8 2 art_table 32 2462 0 2101 4 0 4 4 0 8 0 art_node 16 632 0 559 1 0 1 1 0 8 0 sysvmsgpl 40 25 0 13 1 0 1 1 0 8 0 semapl 112 18 0 8 1 0 1 1 0 8 0 shmpl 112 26 0 8 1 0 1 1 0 8 0 dirhash 1024 31 0 14 3 0 3 3 0 8 0 dino2pl 256 3633 0 2061 99 0 99 99 0 8 0 ffsino 240 3633 0 2061 93 0 93 93 0 8 0 nchpl 144 5259 0 3528 65 0 65 65 0 8 0 uvmvnodes 80 4967 0 0 102 0 102 102 0 8 0 vnodes 216 4967 0 0 276 0 276 276 0 8 0 namei 1024 22357 0 22354 2 0 2 2 0 8 1 kstatmem 264 126 0 100 3 0 3 3 0 8 0 scsiplug 72 3 0 3 1 0 1 1 0 8 1 scxspl 216 28775 0 28775 8 0 8 8 1 8 8 plimitpl 152 457 0 441 1 0 1 1 0 8 0 sigapl 424 1963 0 1901 8 0 8 8 0 8 0 futexpl 64 15168 0 15165 1 0 1 1 0 8 0 knotepl 120 40581 0 40536 17 7 10 17 0 8 8 kqueuepl 184 405 0 397 4 0 4 4 0 8 3 pipepl 288 428 0 400 7 0 7 7 0 8 4 fdescpl 432 1925 0 1900 5 0 5 5 0 8 1 filepl 120 12069 0 11826 16 1 15 16 0 8 6 lockfpl 104 612 0 610 1 0 1 1 0 8 0 lockfspl 48 279 0 277 1 0 1 1 0 8 0 sessionpl 144 67 0 60 1 0 1 1 0 8 0 pgrppl 48 133 0 118 1 0 1 1 0 8 0 ucredpl 104 1822 0 1810 1 0 1 1 0 8 0 zombiepl 144 1902 0 1901 1 0 1 1 0 8 0 processpl 1096 1963 0 1901 6 0 6 6 0 8 0 procpl 648 3427 0 3362 7 0 7 7 0 8 0 sosppl 168 8 0 8 1 0 1 1 0 8 1 sockpl 504 3485 0 3458 67 54 13 25 0 8 8 mcl64k 65536 17 0 17 1 0 1 1 0 8 1 mcl16k 16384 3 0 3 1 0 1 1 0 8 1 mcl12k 12288 3 0 3 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 17 0 17 1 0 1 1 0 8 1 mcl4k 4096 7 0 7 1 0 1 1 0 8 1 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 8457 0 8336 29 7 22 29 0 8 6 mtagpl 96 91 0 86 2 0 2 2 0 8 1 mbufpl 256 22303 0 22022 76 52 24 76 0 8 5 bufpl 280 10227 0 3980 447 0 447 447 0 8 0 anonpl 24 322428 0 319612 50 0 50 50 0 187 17 amapchunkpl 152 48965 0 48603 31 0 31 31 0 158 13 amappl16 200 7193 0 7171 37 29 8 15 0 8 5 amappl15 192 4 0 4 1 0 1 1 0 8 1 amappl14 184 193 0 184 1 0 1 1 0 8 0 amappl13 176 37 0 37 1 0 1 1 0 8 1 amappl12 168 3213 0 3188 3 0 3 3 0 8 1 amappl11 160 54 0 44 1 0 1 1 0 8 0 amappl10 152 10 0 10 1 0 1 1 0 8 1 amappl9 144 177 0 177 1 0 1 1 0 8 1 amappl8 136 55 0 54 1 0 1 1 0 8 0 amappl7 128 195 0 186 1 0 1 1 0 8 0 amappl6 120 577 0 576 1 0 1 1 0 8 0 amappl5 112 296 0 287 1 0 1 1 0 8 0 amappl4 104 415 0 403 1 0 1 1 0 8 0 amappl3 96 9350 0 9270 4 0 4 4 0 8 1 amappl2 88 1259 0 1204 2 0 2 2 0 8 0 amappl1 80 14808 0 14376 13 0 13 13 0 8 1 amappl 88 14105 0 13974 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 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 128 253 0 253 1 0 1 1 0 8 1 dma64 64 7 0 7 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 28 0 8 1 0 1 1 0 8 0 uaddrrnd 24 1925 0 1900 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1925 0 1900 1 0 1 1 0 8 0 vmmpekpl 168 15243 0 15193 3 0 3 3 0 8 0 vmmpepl 168 122901 0 121477 90 0 90 90 0 357 17 vmsppl 344 1924 0 1900 4 0 4 4 0 8 1 rwobjpl 24 40824 0 35131 35 0 35 35 0 8 0 pdppl 4096 3856 0 3800 166 100 66 80 0 8 10 pvpl 32 912249 0 903777 217 0 217 217 0 265 126 pmappl 216 1924 0 1900 3 0 3 3 0 8 1 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 614 0 227 13 0 13 13 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a5b9bf0,ffffffffffffffff,0,80001100,fffffd8073f57958,fffffd807f7d7548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a5b9bf0,ffffffffffffffff,0,80001100,fffffd8073f57958,fffffd807f7d7548) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8073f57958,4,1100,ffffffff,ffff80002a5b9bf0) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8073f57958,4,1100,ffffffff,ffff80002a5b9bf0) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a5b9bf0,ffff80002a4c1bd0,ffff80002a4c1b20) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002a4c1bd0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x96bb62f4760, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a5b9bf0,ffffffffffffffff,0,80001100,fffffd8073f57958,fffffd807f7d7548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a5b9bf0,ffffffffffffffff,0,80001100,fffffd8073f57958,fffffd807f7d7548) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8073f57958,4,1100,ffffffff,ffff80002a5b9bf0) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8073f57958,4,1100,ffffffff,ffff80002a5b9bf0) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a5b9bf0,ffff80002a4c1bd0,ffff80002a4c1b20) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002a4c1bd0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x96bb62f4760, count: -5