uvm_fault(0xfffffd806c2742c0, 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 *119239 58253 0 0 0x4000000 0 syz-executor ktrops(ffff8000376711e0,ffffffffffffffff,0,80001100,fffffd8079e09498,fffffd807f7d7340) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff8000376711e0,ffffffffffffffff,0,80001100,fffffd8079e09498,fffffd807f7d7340) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8079e09498,4,1100,ffffffff,ffff8000376711e0) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8079e09498,4,1100,ffffffff,ffff8000376711e0) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff8000376711e0,ffff800035c2b040,ffff800035c2af90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800035c2b040) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xadf001c56a0, 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(0xfffffd806c2742c0, 0xf, 0, 1) -> e ddb> trace ktrops(ffff8000376711e0,ffffffffffffffff,0,80001100,fffffd8079e09498,fffffd807f7d7340) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff8000376711e0,ffffffffffffffff,0,80001100,fffffd8079e09498,fffffd807f7d7340) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8079e09498,4,1100,ffffffff,ffff8000376711e0) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8079e09498,4,1100,ffffffff,ffff8000376711e0) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff8000376711e0,ffff800035c2b040,ffff800035c2af90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800035c2b040) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xadf001c56a0, count: -5 ddb> show registers rdi 0xffff8000359fe000 rsi 0x648 rbp 0xffff800035c2ad60 rbx 0xfffffd807f7d7340 rdx 0xffff8000359fe000 rcx 0x647 rax 0xffffffff81024613 ktrops+0x43 r8 0xfffffd8079e09498 r9 0xfffffd807f7d7340 r10 0xd843a09e58ed36ea r11 0xc862efb0f52b45e r12 0xffff8000376711e0 r13 0x1 r14 0xffffffffffffffff r15 0x80001100 __kernel_virt_to_phys+0x1100 rip 0xffffffff81024628 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800035c2ace0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=119239 pid=58253 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800037671978,0xffffffff83567200 process=0xffff80003766ef38 user=0xffff800035c26000, vmspace=0xfffffd806c2742c0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 58253 508425 28717 0 2 0 syz-executor *58253 119239 28717 0 7 0x4000000 syz-executor 92157 161719 92038 0 2 0 syz-executor 92157 409577 92038 0 3 0x4000080 fsleep syz-executor 42736 13280 24353 0 2 0 syz-executor 42736 68650 24353 0 2 0x4000000 syz-executor 8639 422324 69967 0 2 0 syz-executor 8639 90255 69967 0 3 0x4000080 fsleep syz-executor 8639 198296 69967 0 3 0x4000080 fsleep syz-executor 74060 269173 0 0 3 0x14200 acct acct 45824 453417 27564 0 3 0x82 nanoslp syz-executor 71060 222194 27564 0 2 0x2 syz-executor 92038 251138 27564 0 3 0x82 nanoslp syz-executor 57226 33679 27564 0 2 0x2 syz-executor 69967 512589 27564 0 3 0x82 nanoslp syz-executor 38413 353378 27564 0 3 0x82 nanoslp syz-executor 28717 74222 27564 0 3 0x82 nanoslp syz-executor 24353 351414 27564 0 3 0x82 nanoslp syz-executor 36185 27328 0 0 3 0x14280 nfsidl nfsio 30934 206196 0 0 3 0x14280 nfsidl nfsio 9872 249154 0 0 3 0x14280 nfsidl nfsio 32453 245630 0 0 3 0x14280 nfsidl nfsio 2577 178888 0 0 3 0x14280 nfsidl nfsio 52499 274521 0 0 3 0x14280 nfsidl nfsio 64908 295005 0 0 3 0x14280 nfsidl nfsio 36253 376554 0 0 3 0x14280 nfsidl nfsio 45746 339406 0 0 3 0x14280 nfsidl nfsio 88917 103266 0 0 3 0x14280 nfsidl nfsio 51128 13122 0 0 3 0x14280 nfsidl nfsio 30968 399865 0 0 3 0x14280 nfsidl nfsio 67058 68475 0 0 3 0x14280 nfsidl nfsio 50005 437495 0 0 3 0x14280 nfsidl nfsio 26567 347024 0 0 3 0x14280 nfsidl nfsio 60725 498057 0 0 3 0x14280 nfsidl nfsio 39811 70195 0 0 3 0x14280 nfsidl nfsio 60552 484686 0 0 3 0x14280 nfsidl nfsio 52505 82878 0 0 3 0x14280 nfsidl nfsio 93234 87335 0 0 3 0x14280 nfsidl nfsio 53670 56244 0 0 3 0x14200 bored sosplice 27564 121686 30184 0 3 0x82 kqread syz-executor 30184 109261 75890 0 3 0x10008a sigsusp ksh 75890 324058 57484 0 3 0x98 kqread sshd-session 57484 387401 94978 0 3 0x92 kqread sshd-session 63939 237311 1 0 3 0x100083 ttyin getty 94978 297900 1 0 3 0x88 kqread sshd 19171 206547 51261 73 3 0x1100090 kqread syslogd 51261 470696 1 0 3 0x100082 sbwait syslogd 1153 12229 1 0 3 0x100080 kqread resolvd 96859 252927 26272 77 3 0x100092 kqread dhcpleased 7305 377726 26272 77 3 0x100092 kqread dhcpleased 26272 290849 1 0 3 0x80 kqread dhcpleased 17388 389034 0 0 3 0x14200 bored smr 92748 300795 0 0 2 0x14200 zerothread 72164 343583 0 0 3 0x14200 aiodoned aiodoned 86726 477184 0 0 3 0x14200 syncer update 5990 388022 0 0 3 0x14200 cleaner cleaner 16164 328429 0 0 3 0x14200 reaper reaper 99652 274992 0 0 3 0x14200 pgdaemon pagedaemon 95013 99062 0 0 3 0x14200 bored viomb 9393 108415 0 0 3 0x40014200 acpi0 acpi0 86068 181669 0 0 3 0x14200 bored softnet3 10277 515975 0 0 3 0x14200 bored softnet2 8692 111247 0 0 3 0x14200 bored softnet1 41144 105229 0 0 3 0x14200 bored softnet0 29816 247523 0 0 3 0x14200 bored systqmp 62821 467259 0 0 3 0x14200 bored systq 66627 894 0 0 3 0x40014200 tmoslp softclock 46850 203303 0 0 3 0x40014200 idle0 1 87477 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 10179 10088K 10413K 166960K 11984 0 pcb 19 14K 15K 166960K 90 0 rtable 251 9K 9K 166960K 1083 0 pf 36 14K 18K 166960K 105 0 ifaddr 44 8K 8K 166960K 143 0 ifgroup 58 2K 2K 166960K 162 0 sysctl 3 0K 0K 166960K 3 0 counters 32 17K 17K 166960K 59 0 ioctlops 0 0K 4K 166960K 84 0 iov 0 0K 12K 166960K 19 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1426 90K 90K 166960K 1987 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 68K 76K 166960K 12 0 VM map 2 1K 1K 166960K 2 0 sem 5 0K 0K 166960K 6 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 15 53K 97K 166960K 789 0 sigio 0 0K 0K 166960K 74 0 proc 58 59K 124K 166960K 1122 0 subproc 104 6K 6K 166960K 390 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 60 0 in_multi 99 7K 7K 166960K 356 0 ether_multi 1 0K 0K 166960K 3 0 mrt 1 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 664 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 200 71K 104K 166960K 7130 0 UVM aobj 16 2K 4K 166960K 18 0 pinsyscall 36 72K 100K 166960K 2374 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 33 0 NDP 13 0K 2K 166960K 100 0 temp 52 6810K 6921K 166960K 11624 0 kqueue 14 22K 30K 166960K 59 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 120 107 0 104 1 0 1 1 0 8 0 rtentry 112 373 0 260 4 0 4 4 0 8 0 unpcb 144 581 0 565 4 0 4 4 0 8 2 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 808 199 0 195 8 0 8 8 0 8 7 arp 88 66 0 48 1 0 1 1 0 8 0 inpcb 336 723 0 714 10 1 9 10 0 8 8 nd6 104 92 0 68 1 0 1 1 0 8 0 pkpcb 40 38 0 38 1 0 1 1 0 8 1 kcovpl 48 30 0 22 1 0 1 1 0 8 0 ppxss 1072 4 0 4 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pfrktable 1344 3 0 1 1 0 1 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pfstkey 128 1 0 1 1 0 1 1 0 8 1 pfstate 344 1 0 1 1 0 1 1 0 8 1 pfrule 1344 5 0 4 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1449 0 991 29 0 29 29 0 8 0 art_table 32 1450 0 991 4 0 4 4 0 8 0 art_node 16 369 0 269 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 1 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 3 0 0 1 0 1 1 0 8 0 shmpl 112 15 0 2 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2210 0 662 97 0 97 97 0 8 0 ffsino 240 2210 0 662 92 0 92 92 0 8 0 nchpl 144 2879 0 1169 64 0 64 64 0 8 0 uvmvnodes 80 2799 0 0 58 0 58 58 0 8 0 vnodes 216 2799 0 0 156 0 156 156 0 8 0 namei 1024 11422 0 11419 2 0 2 2 0 8 1 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 80 0 54 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 15921 0 15921 8 0 8 8 1 8 8 plimitpl 152 157 0 139 1 0 1 1 0 8 0 sigapl 424 1044 0 978 8 0 8 8 0 8 0 futexpl 64 5209 0 5206 1 0 1 1 0 8 0 knotepl 120 14902 0 14850 10 0 10 10 0 8 8 kqueuepl 184 120 0 109 3 0 3 3 0 8 2 pipepl 288 264 0 236 7 0 7 7 0 8 4 fdescpl 432 1006 0 979 5 0 5 5 0 8 1 filepl 120 5068 0 4818 16 1 15 16 0 8 5 lockfpl 104 92 0 90 1 0 1 1 0 8 0 lockfspl 48 45 0 43 1 0 1 1 0 8 0 sessionpl 144 43 0 35 1 0 1 1 0 8 0 pgrppl 48 78 0 62 1 0 1 1 0 8 0 ucredpl 104 536 0 525 1 0 1 1 0 8 0 zombiepl 144 980 0 978 1 0 1 1 0 8 0 processpl 1096 1044 0 978 5 0 5 5 0 8 0 procpl 648 1501 0 1430 7 0 7 7 0 8 0 sockpl 504 1450 0 1422 23 10 13 18 0 8 7 mcl64k 65536 4 0 4 1 0 1 1 0 8 1 mcl16k 16384 3 0 3 1 0 1 1 0 8 1 mcl9k 9216 2 0 2 1 0 1 1 0 8 1 mcl8k 8192 15 0 15 1 0 1 1 0 8 1 mcl4k 4096 5 0 5 1 0 1 1 0 8 1 mcl2k 2048 6115 0 6014 29 9 20 29 0 8 6 mtagpl 96 12 0 12 1 0 1 1 0 8 1 mbufpl 256 12000 0 11815 15 0 15 15 0 8 2 bufpl 280 5827 0 92 410 0 410 410 0 8 0 anonpl 24 181198 0 178089 50 0 50 50 0 187 28 amapchunkpl 152 22589 0 22180 36 0 36 36 0 158 17 amappl16 200 3652 0 3636 5 0 5 5 0 8 3 amappl15 192 11 0 11 1 0 1 1 0 8 1 amappl14 184 150 0 139 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 0 1 1 0 8 1 amappl12 168 1968 0 1941 3 0 3 3 0 8 1 amappl11 160 51 0 41 1 0 1 1 0 8 0 amappl10 152 8 0 8 1 0 1 1 0 8 1 amappl9 144 129 0 129 1 0 1 1 0 8 1 amappl8 136 27 0 26 1 0 1 1 0 8 0 amappl7 128 137 0 127 1 0 1 1 0 8 0 amappl6 120 376 0 375 1 0 1 1 0 8 0 amappl5 112 211 0 202 1 0 1 1 0 8 0 amappl4 104 347 0 333 1 0 1 1 0 8 0 amappl3 96 4494 0 4399 4 0 4 4 0 8 0 amappl2 88 897 0 841 2 0 2 2 0 8 0 amappl1 80 10752 0 10224 14 0 14 14 0 8 2 amappl 88 6619 0 6473 5 0 5 5 0 92 0 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 128 254 0 254 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 17 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1006 0 979 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1006 0 979 1 0 1 1 0 8 0 vmmpekpl 168 9707 0 9650 3 0 3 3 0 8 0 vmmpepl 168 67515 0 65886 80 0 80 80 0 357 2 vmsppl 344 1005 0 979 4 0 4 4 0 8 1 rwobjpl 24 24506 0 20873 23 0 23 23 0 8 0 pdppl 4096 2019 0 1958 127 60 67 83 0 8 6 pvpl 32 493847 0 484614 212 0 212 212 0 265 126 pmappl 216 1005 0 979 3 0 3 3 0 8 1 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 451 0 80 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff8000376711e0,ffffffffffffffff,0,80001100,fffffd8079e09498,fffffd807f7d7340) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff8000376711e0,ffffffffffffffff,0,80001100,fffffd8079e09498,fffffd807f7d7340) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8079e09498,4,1100,ffffffff,ffff8000376711e0) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8079e09498,4,1100,ffffffff,ffff8000376711e0) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff8000376711e0,ffff800035c2b040,ffff800035c2af90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800035c2b040) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xadf001c56a0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff8000376711e0,ffffffffffffffff,0,80001100,fffffd8079e09498,fffffd807f7d7340) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff8000376711e0,ffffffffffffffff,0,80001100,fffffd8079e09498,fffffd807f7d7340) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8079e09498,4,1100,ffffffff,ffff8000376711e0) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8079e09498,4,1100,ffffffff,ffff8000376711e0) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff8000376711e0,ffff800035c2b040,ffff800035c2af90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800035c2b040) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xadf001c56a0, count: -5