uvm_fault(0xfffffd806ba582f0, 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 *514032 55224 0 0x1000 0x4080000 0 syz-executor ktrops(ffff800035137cb0,ffffffffffffffff,0,80000510,fffffd807acae0f8,fffffd8007bfb750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800035137cb0,ffffffffffffffff,0,80000510,fffffd807acae0f8,fffffd8007bfb750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd807acae0f8,4,510,0,ffff800035137cb0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd807acae0f8,4,510,0,ffff800035137cb0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800035137cb0,ffff80003ca0cfa0,ffff80003ca0cef0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003ca0cfa0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003ca0cfa0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x65a2485a8a0, 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(0xfffffd806ba582f0, 0xf, 0, 1) -> e ddb> trace ktrops(ffff800035137cb0,ffffffffffffffff,0,80000510,fffffd807acae0f8,fffffd8007bfb750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800035137cb0,ffffffffffffffff,0,80000510,fffffd807acae0f8,fffffd8007bfb750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd807acae0f8,4,510,0,ffff800035137cb0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd807acae0f8,4,510,0,ffff800035137cb0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800035137cb0,ffff80003ca0cfa0,ffff80003ca0cef0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003ca0cfa0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003ca0cfa0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x65a2485a8a0, count: -5 ddb> show registers rdi 0xffff800035137cb0 rsi 0xffffffffffffffff rbp 0xffff80003ca0ccc0 rbx 0xfffffd8007bfb750 rdx 0 rcx 0x80000510 __kernel_virt_to_phys+0x510 rax 0xffff800035137cb0 r8 0xfffffd807acae0f8 r9 0xfffffd8007bfb750 r10 0xa5c8a2ddd6813d6d r11 0x4e888a206a0acd26 r12 0xffff800035137cb0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000510 __kernel_virt_to_phys+0x510 rip 0xffffffff8316d5f8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003ca0cc40 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=514032 pid=55224 tcnt=2 stat=onproc flags process=1000 proc=4080000 runpri=17, usrpri=51, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0xffff800035136558 scnt=1 ecnt=0 forw=0xffffffffffffffff, list=0xffff800035136558,0xffffffff838d2660 process=0xffff8000ffff2428 user=0xffff80003ca08000, vmspace=0xfffffd806ba582f0 estcpu=1, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 55224 283019 74633 0 3 0x3000 suspend syz-executor *55224 514032 74633 0 7 0x4081000 syz-executor 36953 405024 10854 0 2 0 syz-executor 36953 506484 10854 0 3 0x4000080 fsleep syz-executor 53728 60775 69000 0 2 0 syz-executor 53728 434364 69000 0 2 0x4000000 syz-executor 29821 192546 63652 0 2 0 syz-executor 29821 212832 63652 0 3 0x4000080 fsleep syz-executor 60125 429265 85772 0 2 0 syz-executor 60125 266821 85772 0 2 0x4000000 syz-executor 66889 29562 1 0 3 0x80 nanoslp init 45825 280532 0 0 3 0x14280 nfsidl nfsio 55695 17468 0 0 3 0x14280 nfsidl nfsio 38128 343500 0 0 3 0x14280 nfsidl nfsio 2573 155979 0 0 3 0x14280 nfsidl nfsio 94534 218317 0 0 3 0x14280 nfsidl nfsio 18465 213039 0 0 3 0x14280 nfsidl nfsio 67170 340879 0 0 3 0x14280 nfsidl nfsio 82732 54775 0 0 3 0x14280 nfsidl nfsio 43367 9672 0 0 3 0x14280 nfsidl nfsio 57893 485670 0 0 3 0x14280 nfsidl nfsio 63921 262985 0 0 3 0x14280 nfsidl nfsio 21337 423436 0 0 3 0x14280 nfsidl nfsio 34354 467999 0 0 3 0x14280 nfsidl nfsio 92925 301702 0 0 3 0x14280 nfsidl nfsio 75492 159517 0 0 3 0x14280 nfsidl nfsio 26231 160945 0 0 3 0x14280 nfsidl nfsio 52355 434933 0 0 3 0x14280 nfsidl nfsio 55313 203695 0 0 3 0x14280 nfsidl nfsio 56145 21281 0 0 3 0x14280 nfsidl nfsio 71620 127588 0 0 3 0x14280 nfsidl nfsio 98028 330131 0 0 3 0x14200 bored sosplice 85772 286034 49929 0 2 0xc82 syz-executor 11247 53177 49929 0 3 0x82 wait syz-executor 63652 232663 49929 0 2 0xc82 syz-executor 21121 333466 49929 0 2 0x2 syz-executor 69000 173565 49929 0 2 0xc82 syz-executor 2986 486336 49929 0 3 0x82 nanoslp syz-executor 10854 339432 49929 0 3 0x82 nanoslp syz-executor 74633 419354 49929 0 2 0xc82 syz-executor 49929 168216 86921 0 3 0x82 kqread syz-executor 86921 82426 29348 0 3 0x10008a sigsusp ksh 29348 339403 26244 0 3 0x98 kqread sshd-session 26244 128817 50606 0 3 0x92 kqread sshd-session 50606 438608 1 0 3 0x88 kqread sshd 99212 343247 2571 73 3 0x1100090 kqread syslogd 2571 56580 1 0 3 0x100082 sbwait syslogd 28526 4705 1 0 3 0x100080 kqread resolvd 51433 522203 73689 77 3 0x100092 kqread dhcpleased 99117 1571 73689 77 3 0x100092 kqread dhcpleased 73689 110528 1 0 3 0x80 kqread dhcpleased 30998 18898 0 0 3 0x14200 bored smr 55328 144282 0 0 2 0x14200 zerothread 27577 102497 0 0 3 0x14200 aiodoned aiodoned 4569 485620 0 0 3 0x14200 syncer update 57734 159693 0 0 3 0x14200 cleaner cleaner 24000 454159 0 0 3 0x14200 reaper reaper 38240 179567 0 0 3 0x14200 pgdaemon pagedaemon 28268 394898 0 0 3 0x14200 bored viomb 54518 4090 0 0 3 0x40014200 acpi0 acpi0 21153 434217 0 0 3 0x14200 bored softnet7 20586 106245 0 0 3 0x14200 bored softnet6 18636 818 0 0 3 0x14200 bored softnet5 20563 244367 0 0 3 0x14200 bored softnet4 95359 231040 0 0 3 0x14200 bored softnet3 14426 252431 0 0 3 0x14200 bored softnet2 41309 273754 0 0 3 0x14200 bored softnet1 66175 324646 0 0 3 0x14200 bored softnet0 94942 450108 0 0 3 0x14200 bored systqmp 76441 338238 0 0 3 0x14200 bored systq 25697 444861 0 0 2 0x40014200 softclock 91956 90365 0 0 3 0x40014200 idle0 1 386024 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 10205 11195K 11268K 166960K 11428 0 pcb 18 12K 12K 166960K 37 0 rtable 219 6K 7K 166960K 282 0 pf 31 13K 19K 166960K 47 0 ifaddr 42 7K 7K 166960K 47 0 ifgroup 50 2K 2K 166960K 59 0 sysctl 3 1K 9K 166960K 8 0 counters 32 17K 18K 166960K 37 0 ioctlops 0 0K 2K 166960K 78 0 iov 0 0K 2K 166960K 7 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1373 86K 87K 166960K 1484 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 5 0K 1K 166960K 11 0 dirhash 12 2K 3K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 97K 166960K 252 0 sigio 0 0K 0K 166960K 1 0 proc 51 50K 124K 166960K 493 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 20 0 in_multi 99 7K 7K 166960K 108 0 ether_multi 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 0 0K 1K 166960K 357 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 216 156K 175K 166960K 3928 0 UVM aobj 10 2K 2K 166960K 10 0 pinsyscall 37 74K 96K 166960K 1294 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 4 0 NDP 12 0K 2K 166960K 31 0 temp 38 8634K 8758K 166960K 6958 0 kqueue 14 22K 27K 166960K 52 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 44 0 40 1 0 1 1 0 8 0 rtentry 136 98 0 1 4 0 4 4 0 8 0 unpcb 144 101 0 85 1 0 1 1 0 8 0 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 736 44 0 39 1 0 1 1 0 8 0 arp 88 11 0 0 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 328 145 0 135 2 0 2 2 0 8 1 nd6 104 18 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1072 4 0 4 1 0 1 1 0 8 1 pfanchor 1288 3 0 0 1 0 1 1 0 8 0 pfstkey 128 2 0 2 1 0 1 1 0 8 1 pfstate 384 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 441 0 0 28 0 28 28 0 8 0 art_table 40 442 0 0 5 0 5 5 0 8 0 art_node 32 98 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 5 0 2 1 0 1 1 0 8 0 shmpl 112 7 0 0 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 1800 0 298 95 0 95 95 0 8 0 ffsino 256 1800 0 298 95 0 95 95 0 8 0 nchpl 144 2158 0 475 63 0 63 63 0 8 0 uvmvnodes 80 1955 0 0 40 0 40 40 0 8 0 vnodes 216 1955 0 0 109 0 109 109 0 8 0 namei 1024 6788 0 6788 2 0 2 2 0 8 2 kstatmem 264 28 0 6 2 0 2 2 0 8 0 scxspl 216 9664 0 9664 8 0 8 8 1 8 8 plimitpl 152 50 0 33 1 0 1 1 0 8 0 sigapl 424 560 0 490 8 0 8 8 0 8 0 knotepl 120 7109 0 7060 2 0 2 2 0 8 0 kqueuepl 184 55 0 45 1 0 1 1 0 8 0 pipepl 304 109 0 82 3 0 3 3 0 8 0 fdescpl 448 519 0 490 5 0 5 5 0 8 1 filepl 120 2142 0 1924 9 0 9 9 0 8 1 lockfpl 104 79 0 77 1 0 1 1 0 8 0 lockfspl 48 22 0 20 1 0 1 1 0 8 0 sessionpl 144 23 0 16 1 0 1 1 0 8 0 pgrppl 48 32 0 17 1 0 1 1 0 8 0 ucredpl 104 229 0 218 1 0 1 1 0 8 0 zombiepl 144 493 0 490 1 0 1 1 0 8 0 processpl 1152 560 0 490 6 0 6 6 0 8 0 procpl 664 757 0 682 8 0 8 8 0 8 1 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 552 296 0 266 3 0 3 3 0 8 0 mcl64k 65536 12 0 12 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 8 0 8 1 0 1 1 0 8 1 mcl4k 4096 2594 0 2543 13 0 13 13 0 8 6 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 335 0 328 1 0 1 1 0 8 0 mtagpl 96 10 0 5 1 0 1 1 0 8 0 mbufpl 256 4968 0 4786 12 0 12 12 0 8 0 bufpl 280 5242 0 118 366 0 366 366 0 8 0 anonpl 24 118145 0 112751 57 0 57 57 0 187 24 amapchunkpl 152 12200 0 11607 34 0 34 34 0 158 10 amappl16 200 2424 0 2398 18 7 11 15 0 8 8 amappl15 192 3 0 3 1 0 1 1 0 8 1 amappl14 184 111 0 102 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 0 1 1 0 8 1 amappl12 168 1132 0 1104 3 0 3 3 0 8 1 amappl11 160 46 0 36 1 0 1 1 0 8 0 amappl10 152 24 0 24 1 0 1 1 0 8 1 amappl9 144 253 0 253 1 0 1 1 0 8 1 amappl8 136 23 0 22 1 0 1 1 0 8 0 amappl7 128 112 0 103 1 0 1 1 0 8 0 amappl6 120 198 0 194 1 0 1 1 0 8 0 amappl5 112 120 0 111 1 0 1 1 0 8 0 amappl4 104 267 0 252 1 0 1 1 0 8 0 amappl3 96 1823 0 1739 3 0 3 3 0 8 0 amappl2 88 746 0 677 2 0 2 2 0 8 0 amappl1 80 8629 0 8109 13 0 13 13 0 8 1 amappl 88 3254 0 3099 5 0 5 5 0 92 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 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 9 0 0 1 0 1 1 0 8 0 uaddrrnd 24 519 0 490 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 519 0 490 1 0 1 1 0 8 0 vmmpekpl 168 5740 0 5713 2 0 2 2 0 8 0 vmmpepl 168 39928 0 38132 94 0 94 94 0 357 12 vmsppl 368 518 0 490 4 0 4 4 0 8 1 rwobjpl 40 15913 0 13164 30 0 30 30 0 8 0 pdppl 4096 1045 0 980 97 30 67 83 0 8 2 pvpl 32 264321 0 252697 138 0 138 138 0 265 41 pmappl 216 518 0 490 3 0 3 3 0 8 1 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 365 0 30 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff800035137cb0,ffffffffffffffff,0,80000510,fffffd807acae0f8,fffffd8007bfb750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800035137cb0,ffffffffffffffff,0,80000510,fffffd807acae0f8,fffffd8007bfb750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd807acae0f8,4,510,0,ffff800035137cb0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd807acae0f8,4,510,0,ffff800035137cb0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800035137cb0,ffff80003ca0cfa0,ffff80003ca0cef0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003ca0cfa0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003ca0cfa0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x65a2485a8a0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff800035137cb0,ffffffffffffffff,0,80000510,fffffd807acae0f8,fffffd8007bfb750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800035137cb0,ffffffffffffffff,0,80000510,fffffd807acae0f8,fffffd8007bfb750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd807acae0f8,4,510,0,ffff800035137cb0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd807acae0f8,4,510,0,ffff800035137cb0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800035137cb0,ffff80003ca0cfa0,ffff80003ca0cef0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003ca0cfa0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003ca0cfa0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x65a2485a8a0, count: -5