uvm_fault(0xfffffd80094278a0, 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 *119418 15314 0 0 0x4000000 0 syz-executor ktrops(ffff80003c94f248,ffffffffffffffff,0,80000434,fffffd806b9deb40,fffffd8007bfb6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c94f248,ffffffffffffffff,0,80000434,fffffd806b9deb40,fffffd8007bfb6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806b9deb40,4,434,0,ffff80003c94f248) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806b9deb40,4,434,0,ffff80003c94f248) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c94f248,ffff80003bd63220,ffff80003bd63170) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003bd63220) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003bd63220) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2e6815abaa0, 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(0xfffffd80094278a0, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80003c94f248,ffffffffffffffff,0,80000434,fffffd806b9deb40,fffffd8007bfb6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c94f248,ffffffffffffffff,0,80000434,fffffd806b9deb40,fffffd8007bfb6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806b9deb40,4,434,0,ffff80003c94f248) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806b9deb40,4,434,0,ffff80003c94f248) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c94f248,ffff80003bd63220,ffff80003bd63170) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003bd63220) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003bd63220) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2e6815abaa0, count: -5 ddb> show registers rdi 0xffff80003b158000 rsi 0x1e2d __ALIGN_SIZE+0xe2d rbp 0xffff80003bd62f40 rbx 0xfffffd8007bfb6e8 rdx 0xffff80003b158000 rcx 0x1e2c __ALIGN_SIZE+0xe2c rax 0xffffffff81762ad3 ktrops+0x43 r8 0xfffffd806b9deb40 r9 0xfffffd8007bfb6e8 r10 0x96caa65c652a9c3e r11 0xc06ce19bfb217670 r12 0xffff80003c94f248 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000434 __kernel_virt_to_phys+0x434 rip 0xffffffff81762ae8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003bd62ec0 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=119418 pid=15314 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=82, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c94efb0,0xffff80002a7862b0 process=0xffff800037121698 user=0xffff80003bd5e000, vmspace=0xfffffd80094278a0 estcpu=32, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 5327 115781 11867 0 2 0xc80 syz-executor 5327 152805 11867 0 2 0x4000000 syz-executor 5327 343498 11867 0 2 0x4000c00 syz-executor 5327 424375 11867 0 3 0x4000000 pipecl syz-executor 5327 487298 11867 0 3 0x4000080 fsleep syz-executor 8558 211795 49994 0 2 0 syz-executor 8558 387900 49994 0 2 0x4000000 syz-executor 8558 79268 49994 0 3 0x4000080 fsleep syz-executor 15314 111437 37098 0 3 0x80 nanoslp syz-executor 15314 272609 37098 0 3 0x4000080 fsleep syz-executor *15314 119418 37098 0 7 0x4000000 syz-executor 41305 196170 3532 0 2 0x10 syz-executor 41305 67453 3532 0 2 0x4000010 syz-executor 41305 268579 3532 0 3 0x4000010 inode syz-executor 39604 30535 59628 0 3 0x80 nanoslp syz-executor 39604 392584 59628 0 3 0x4000080 kqpoll syz-executor 39604 43360 59628 0 3 0x4000080 fsleep syz-executor 59716 42158 66295 0 2 0xc82 syz-executor 38971 146629 1 0 3 0x100083 ttyin getty 37098 31863 66295 0 2 0xc82 syz-executor 88998 71705 0 0 3 0x14200 bored sosplice 81186 3213 66295 0 3 0x2 biowait syz-executor 84259 148663 66295 0 2 0x2 syz-executor 49994 524084 66295 0 2 0xc82 syz-executor 11867 73077 66295 0 2 0xc82 syz-executor 3532 347501 66295 0 2 0xc82 syz-executor 59628 515726 66295 0 2 0xc82 syz-executor 66295 281928 95685 0 3 0x82 kqread syz-executor 95685 377752 4787 0 3 0x10008a sigsusp ksh 4787 157182 53355 0 3 0x98 kqread sshd-session 53355 138656 87648 0 3 0x92 kqread sshd-session 87648 145066 1 0 3 0x88 kqread sshd 53158 243154 27566 73 3 0x1100090 kqread syslogd 27566 217641 1 0 3 0x100082 sbwait syslogd 3737 333668 1 0 3 0x100080 kqread resolvd 97759 95631 42056 77 3 0x100092 kqread dhcpleased 3699 477266 42056 77 3 0x100092 kqread dhcpleased 42056 395419 1 0 3 0x80 kqread dhcpleased 40216 43082 0 0 3 0x14200 bored smr 98124 6862 0 0 2 0x14200 zerothread 56989 507058 0 0 3 0x14200 aiodoned aiodoned 90051 36514 0 0 3 0x14200 syncer update 24526 411655 0 0 3 0x14200 cleaner cleaner 66899 145506 0 0 3 0x14200 reaper reaper 72841 214538 0 0 3 0x14200 pgdaemon pagedaemon 64713 324510 0 0 3 0x14200 bored viomb 48123 512410 0 0 3 0x40014200 acpi0 acpi0 61333 29151 0 0 3 0x14200 bored softnet0 92469 198468 0 0 3 0x14200 bored systqmp 35568 298253 0 0 3 0x14200 bored systq 28129 350342 0 0 3 0x40014200 tmoslp softclock 86991 86779 0 0 3 0x40014200 idle0 1 277729 0 0 3 0x82 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 10212 11119K 11624K 166960K 13664 0 pcb 19 14K 16K 166960K 352 0 rtable 204 10K 12K 166960K 658 0 pf 30 13K 20K 166960K 448 0 ifaddr 34 6K 8K 166960K 121 0 ifgroup 46 2K 2K 166960K 195 0 sysctl 4 1K 9K 166960K 15 0 counters 31 17K 18K 166960K 113 0 ioctlops 0 0K 4K 166960K 485 0 iov 0 0K 36K 166960K 82 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1465 92K 92K 166960K 2915 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 14 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 147 0 dirhash 12 2K 2K 166960K 27 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 240K 166960K 1440 0 sigio 0 0K 0K 166960K 25 0 proc 61 59K 116K 166960K 723 0 subproc 72 4K 4K 166960K 99 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 194 0 in_multi 75 5K 7K 166960K 208 0 ether_multi 1 0K 0K 166960K 31 0 mrt 1 0K 0K 166960K 18 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 247 1102K 1102K 166960K 247 0 exec 0 0K 1K 166960K 563 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 4K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 230 151K 168K 166960K 14085 0 UVM aobj 73 5K 5K 166960K 78 0 pinsyscall 37 74K 96K 166960K 2593 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 69 0 NDP 10 0K 2K 166960K 85 0 temp 67 8648K 8713K 166960K 55181 0 kqueue 15 24K 30K 166960K 280 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 120 198 0 194 2 0 2 2 0 8 1 rtentry 136 180 0 103 4 0 4 4 0 8 0 unpcb 144 866 0 851 6 0 6 6 0 8 5 syncache 336 6 0 6 1 0 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 736 583 0 579 13 4 9 13 0 8 8 arp 96 27 0 9 1 0 1 1 0 8 0 ipq 40 7 0 4 1 0 1 1 0 8 0 ipqe 40 10 0 7 1 0 1 1 0 8 0 inpcb 328 1555 0 1546 18 9 9 18 0 8 8 ip6q 72 9 0 5 1 0 1 1 0 8 0 ip6af 40 14 0 10 1 0 1 1 0 8 0 nd6 112 34 0 19 1 0 1 1 0 8 0 pkpcb 40 12 0 12 1 0 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1072 67 0 67 1 0 1 1 0 8 1 pppxif 1384 4 0 4 1 0 1 1 0 8 1 pfosfp 40 3 0 2 1 0 1 1 0 8 0 pfosfpen 112 3 0 1 1 0 1 1 0 8 0 pfrktable 1344 5 0 5 1 0 1 1 0 8 1 pfanchor 1288 3 0 1 1 0 1 1 0 8 0 pftag 88 3 0 1 1 0 1 1 0 8 0 pfstitem 24 5 0 2 1 0 1 1 0 8 0 pfstkey 128 8 0 4 1 0 1 1 0 8 0 pfstate 384 6 0 4 1 0 1 1 0 8 0 pfrule 1344 72 0 71 6 0 6 6 0 8 5 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 256 912 0 559 31 0 31 31 0 8 7 art_table 40 916 0 559 6 0 6 6 0 8 1 art_node 32 176 0 106 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 3 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 145 0 135 1 0 1 1 0 8 0 shmpl 112 75 0 5 2 0 2 2 0 8 0 dirhash 1024 27 0 10 3 0 3 3 0 8 0 dino2pl 256 4114 0 2606 95 0 95 95 0 8 0 ffsino 256 4114 0 2606 95 0 95 95 0 8 0 nchpl 144 6083 0 4374 64 0 64 64 0 8 0 rtmask 32 19 0 19 1 0 1 1 0 8 1 vnodes 216 5094 0 0 283 0 283 283 0 8 0 namei 1024 22138 0 22136 2 0 2 2 0 8 1 pfiaddrpl 120 65 0 65 2 0 2 2 0 8 2 kstatmem 264 126 0 106 2 0 2 2 0 8 0 scsiplug 72 3 0 3 1 0 1 1 0 8 1 scxspl 216 24923 0 24861 8 0 8 8 1 8 1 plimitpl 152 648 0 630 1 0 1 1 0 8 0 sigapl 424 1713 0 1671 6 0 6 6 0 8 0 knotepl 120 75764 0 75467 24 14 10 23 0 8 0 kqueuepl 184 688 0 676 4 0 4 4 0 8 3 pipepl 304 476 0 448 8 0 8 8 0 8 5 fdescpl 448 1694 0 1666 5 0 5 5 0 8 1 filepl 120 12612 0 12391 13 0 13 13 0 8 4 lockfpl 104 641 0 638 1 0 1 1 0 8 0 lockfspl 48 242 0 239 1 0 1 1 0 8 0 sessionpl 144 28 0 20 1 0 1 1 0 8 0 pgrppl 48 57 0 40 1 0 1 1 0 8 0 ucredpl 104 2234 0 2222 1 0 1 1 0 8 0 zombiepl 144 1672 0 1671 1 0 1 1 0 8 0 processpl 1152 1713 0 1671 4 0 4 4 0 8 0 procpl 664 3647 0 3593 6 0 6 6 0 8 1 sosppl 168 7 0 7 1 0 1 1 0 8 1 sockpl 552 2663 0 2635 18 8 10 17 0 8 7 mcl64k 65536 213 0 210 3 0 3 3 0 8 2 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl9k 9216 3 0 3 1 0 1 1 0 8 1 mcl8k 8192 13 0 13 1 0 1 1 0 8 1 mcl4k 4096 4174 0 4118 13 0 13 13 0 8 5 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 1977 0 1974 3 0 3 3 0 8 2 mtagpl 96 8 0 8 1 0 1 1 0 8 1 mbufpl 256 19182 0 19041 51 28 23 51 0 8 8 bufpl 280 11241 0 5019 445 0 445 445 0 8 0 anonpl 24 268908 0 262289 72 0 72 72 0 187 31 amapchunkpl 152 60004 0 59512 36 0 36 36 0 158 14 amappl16 200 6166 0 5945 52 40 12 27 0 8 0 amappl15 192 40 0 40 1 0 1 1 0 8 1 amappl14 184 54 0 54 1 0 1 1 0 8 1 amappl13 176 443 0 442 1 0 1 1 0 8 0 amappl12 168 2062 0 2025 2 0 2 2 0 8 0 amappl11 160 63 0 63 1 0 1 1 0 8 1 amappl10 152 42 0 32 1 0 1 1 0 8 0 amappl9 144 247 0 247 1 0 1 1 0 8 1 amappl8 136 26 0 24 1 0 1 1 0 8 0 amappl7 128 95 0 94 1 0 1 1 0 8 0 amappl6 120 306 0 295 1 0 1 1 0 8 0 amappl5 112 73 0 65 1 0 1 1 0 8 0 amappl4 104 409 0 384 1 0 1 1 0 8 0 amappl3 96 8302 0 8215 3 0 3 3 0 8 0 amappl2 88 1828 0 1757 2 0 2 2 0 8 0 amappl1 80 14489 0 13960 13 0 13 13 0 8 1 amappl 88 13121 0 12960 5 0 5 5 0 92 0 uvmvnodes 80 5094 0 0 104 0 104 104 0 8 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 7 0 7 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 21 0 20 1 0 1 1 0 8 0 aobjpl 72 77 0 5 2 0 2 2 0 8 0 uaddrrnd 24 1694 0 1666 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1694 0 1666 1 0 1 1 0 8 0 vmmpekpl 168 14572 0 14527 3 0 3 3 0 8 0 vmmpepl 168 111106 0 109168 100 0 100 100 0 357 11 vmsppl 368 1693 0 1666 4 0 4 4 0 8 1 rwobjpl 40 35527 0 29327 63 0 63 63 0 8 0 pdppl 4096 3395 0 3332 119 52 67 83 0 8 4 pvpl 32 738577 0 725821 153 0 153 153 0 265 44 pmappl 216 1693 0 1666 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 448 0 84 12 0 12 12 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80003c94f248,ffffffffffffffff,0,80000434,fffffd806b9deb40,fffffd8007bfb6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c94f248,ffffffffffffffff,0,80000434,fffffd806b9deb40,fffffd8007bfb6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806b9deb40,4,434,0,ffff80003c94f248) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806b9deb40,4,434,0,ffff80003c94f248) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c94f248,ffff80003bd63220,ffff80003bd63170) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003bd63220) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003bd63220) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2e6815abaa0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80003c94f248,ffffffffffffffff,0,80000434,fffffd806b9deb40,fffffd8007bfb6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c94f248,ffffffffffffffff,0,80000434,fffffd806b9deb40,fffffd8007bfb6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806b9deb40,4,434,0,ffff80003c94f248) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806b9deb40,4,434,0,ffff80003c94f248) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c94f248,ffff80003bd63220,ffff80003bd63170) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003bd63220) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003bd63220) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2e6815abaa0, count: -5