uvm_fault(0xfffffd806ba58e70, 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 * 21955 3621 0 0 0x4000000 0 syz-executor ktrops(ffff80002a820a88,ffffffffffffffff,0,80000512,fffffd8078db8000,fffffd8007bfb6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a820a88,ffffffffffffffff,0,80000512,fffffd8078db8000,fffffd8007bfb6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8078db8000,4,512,ffffffff,ffff80002a820a88) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8078db8000,4,512,ffffffff,ffff80002a820a88) at doktrace+0x560 sys/kern/kern_ktrace.c:502 sys_ktrace(ffff80002a820a88,ffff80003c9a5cc0,ffff80003c9a5c10) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9a5cc0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9a5cc0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7757aa7acd0, 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(0xfffffd806ba58e70, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a820a88,ffffffffffffffff,0,80000512,fffffd8078db8000,fffffd8007bfb6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a820a88,ffffffffffffffff,0,80000512,fffffd8078db8000,fffffd8007bfb6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8078db8000,4,512,ffffffff,ffff80002a820a88) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8078db8000,4,512,ffffffff,ffff80002a820a88) at doktrace+0x560 sys/kern/kern_ktrace.c:502 sys_ktrace(ffff80002a820a88,ffff80003c9a5cc0,ffff80003c9a5c10) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9a5cc0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9a5cc0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7757aa7acd0, count: -5 ddb> show registers rdi 0xffff800033942000 rsi 0x4aa rbp 0xffff80003c9a59e0 rbx 0xfffffd8007bfb6e8 rdx 0xffff800033942000 rcx 0x4a9 rax 0xffffffff8235c7e3 ktrops+0x43 r8 0xfffffd8078db8000 r9 0xfffffd8007bfb6e8 r10 0xff5ec88d5c4a6734 r11 0xd00828f48f591ede r12 0xffff80002a820a88 r13 0x1 r14 0xffffffffffffffff r15 0x80000512 __kernel_virt_to_phys+0x512 rip 0xffffffff8235c7f8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c9a5960 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=21955 pid=3621 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=51, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a820028,0xffff80002a821cc0 process=0xffff80003c9871a0 user=0xffff80003c9a0000, vmspace=0xfffffd806ba58e70 estcpu=1, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 49923 488213 76269 0 2 0 syz-executor 3621 460620 61026 0 2 0 syz-executor * 3621 21955 61026 0 7 0x4000000 syz-executor 57978 450441 47299 0 3 0x90 nanoslp syz-executor 57978 184425 47299 0 2 0x4000c90 syz-executor 57978 176780 47299 0 3 0x4000090 fsleep syz-executor 59604 419245 34614 0 2 0 syz-executor 59604 139647 34614 0 2 0x4000000 syz-executor 44968 179255 64852 0 2 0x2 syz-executor 34614 218735 64852 0 3 0x82 nanoslp syz-executor 55919 261764 64852 0 2 0x2 syz-executor 61026 352816 64852 0 2 0xc82 syz-executor 51554 514952 64852 0 2 0x10000082 syz-executor 76269 193571 64852 0 3 0x82 nanoslp syz-executor 47299 7620 64852 0 2 0xc82 syz-executor 14410 441069 64852 0 2 0x2 syz-executor 64852 92401 70313 0 2 0x2 syz-executor 70313 496444 2015 0 3 0x10008a sigsusp ksh 2015 281546 74137 0 3 0x98 kqread sshd-session 74137 363617 32288 0 3 0x92 kqread sshd-session 39087 301013 1 0 3 0x100083 ttyin getty 32288 30297 1 0 3 0x88 kqread sshd 5709 431915 47838 73 3 0x1100090 kqread syslogd 47838 16773 1 0 3 0x100082 sbwait syslogd 7779 327154 1 0 3 0x100080 kqread resolvd 4946 432076 84012 77 3 0x100092 kqread dhcpleased 28399 382461 84012 77 3 0x100092 kqread dhcpleased 84012 341316 1 0 3 0x80 kqread dhcpleased 47783 511654 0 0 3 0x14200 bored smr 663 202525 0 0 2 0x14200 zerothread 84049 87921 0 0 3 0x14200 aiodoned aiodoned 62227 102822 0 0 3 0x14200 syncer update 51341 228191 0 0 3 0x14200 cleaner cleaner 97133 345937 0 0 3 0x14200 reaper reaper 45532 219597 0 0 3 0x14200 pgdaemon pagedaemon 12340 216842 0 0 3 0x14200 bored viomb 7916 517766 0 0 3 0x40014200 acpi0 acpi0 23394 335061 0 0 3 0x14200 bored softnet7 76172 283878 0 0 3 0x14200 bored softnet6 9493 344088 0 0 3 0x14200 bored softnet5 62585 421769 0 0 3 0x14200 bored softnet4 24690 429252 0 0 3 0x14200 bored softnet3 76464 63202 0 0 3 0x14200 bored softnet2 46808 184097 0 0 3 0x14200 bored softnet1 67375 486043 0 0 3 0x14200 bored softnet0 9416 362623 0 0 3 0x14200 smrbar systqmp 95885 479743 0 0 3 0x14200 bored systq 83454 414362 0 0 2 0x40014200 softclock 32554 23069 0 0 3 0x40014200 idle0 1 250858 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 10172 11099K 11115K 166960K 11265 0 pcb 20 12K 12K 166960K 35 0 rtable 193 6K 6K 166960K 263 0 pf 29 12K 12K 166960K 33 0 ifaddr 38 6K 6K 166960K 45 0 ifgroup 46 2K 2K 166960K 52 0 sysctl 1 1K 9K 166960K 5 0 counters 31 17K 17K 166960K 35 0 ioctlops 0 0K 4K 166960K 36 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1339 84K 84K 166960K 1364 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 3 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 14 49K 93K 166960K 150 0 proc 59 59K 116K 166960K 474 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 1 0K 0K 166960K 4 0 in_multi 88 6K 6K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 43 201K 201K 166960K 43 0 exec 0 0K 1K 166960K 346 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 190 150K 160K 166960K 2940 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 35 70K 94K 166960K 1172 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 12 0K 1K 166960K 28 0 temp 33 8630K 8694K 166960K 3726 0 kqueue 15 24K 26K 166960K 26 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 36 0 33 1 0 1 1 0 8 0 rtentry 136 96 0 10 3 0 3 3 0 8 0 unpcb 144 50 0 33 1 0 1 1 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 8 0 3 1 0 1 1 0 8 0 arp 88 10 0 1 1 0 1 1 0 8 0 inpcb 328 73 0 61 2 0 2 2 0 8 0 nd6 104 17 0 2 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 3 0 3 1 1 0 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 4 0 2 1 0 1 1 0 8 0 pfstate 384 2 0 1 1 0 1 1 0 8 0 pfrule 1344 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 447 0 0 28 0 28 28 0 8 0 art_table 40 448 0 0 5 0 5 5 0 8 0 art_node 32 96 0 10 1 0 1 1 0 8 0 semapl 112 1 0 1 1 1 0 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1576 0 68 95 0 95 95 0 8 0 ffsino 256 1576 0 68 95 0 95 95 0 8 0 nchpl 144 1778 0 93 63 0 63 63 0 8 0 rtmask 32 2 0 2 1 1 0 1 0 8 0 uvmvnodes 80 1663 0 0 34 0 34 34 0 8 0 vnodes 216 1663 0 0 93 0 93 93 0 8 0 namei 1024 5200 0 5196 2 1 1 2 0 8 0 kstatmem 264 24 0 4 2 0 2 2 0 8 0 scxspl 216 6285 0 6285 8 7 1 8 1 8 1 plimitpl 152 30 0 13 1 0 1 1 0 8 0 sigapl 424 431 0 384 7 1 6 7 0 8 0 knotepl 120 3952 0 3635 10 0 10 10 0 8 0 kqueuepl 184 24 0 12 1 0 1 1 0 8 0 pipepl 304 99 0 72 3 0 3 3 0 8 0 fdescpl 448 411 0 385 5 1 4 5 0 8 0 filepl 120 1371 0 1149 8 0 8 8 0 8 0 lockfpl 104 14 0 10 1 0 1 1 0 8 0 lockfspl 48 9 0 5 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 29 0 13 1 0 1 1 0 8 0 ucredpl 104 82 0 69 1 0 1 1 0 8 0 zombiepl 144 385 0 384 2 1 1 1 0 8 0 processpl 1152 431 0 384 5 1 4 5 0 8 0 procpl 664 461 0 410 6 0 6 6 0 8 0 sockpl 552 160 0 128 4 0 4 4 0 8 0 mcl8k 8192 4 0 4 1 1 0 1 0 8 0 mcl4k 4096 2437 0 2382 14 6 8 14 0 8 0 mcl2k 2048 184 0 182 2 1 1 1 0 8 0 mtagpl 96 4 0 4 1 1 0 1 0 8 0 mbufpl 256 3889 0 3743 10 0 10 10 0 8 0 bufpl 280 2835 0 117 195 0 195 195 0 8 0 anonpl 24 97691 0 94884 23 3 20 23 0 187 0 amapchunkpl 152 8415 0 8055 21 0 21 21 0 158 1 amappl16 200 1847 0 1831 6 4 2 5 0 8 1 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 100 0 90 1 0 1 1 0 8 0 amappl13 176 10 0 10 1 1 0 1 0 8 0 amappl12 168 1017 0 991 3 1 2 3 0 8 0 amappl11 160 42 0 32 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 1 0 1 0 8 0 amappl9 144 254 0 254 1 1 0 1 0 8 0 amappl8 136 25 0 24 1 0 1 1 0 8 0 amappl7 128 104 0 94 1 0 1 1 0 8 0 amappl6 120 170 0 167 1 0 1 1 0 8 0 amappl5 112 118 0 112 1 0 1 1 0 8 0 amappl4 104 268 0 253 1 0 1 1 0 8 0 amappl3 96 1284 0 1217 3 0 3 3 0 8 0 amappl2 88 636 0 566 2 0 2 2 0 8 0 amappl1 80 7850 0 7316 14 1 13 14 0 8 0 amappl 88 2311 0 2184 4 0 4 4 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 411 0 385 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 411 0 385 1 0 1 1 0 8 0 vmmpekpl 168 4818 0 4783 2 0 2 2 0 8 0 vmmpepl 168 32830 0 31208 83 1 82 82 0 357 1 vmsppl 368 410 0 385 4 1 3 4 0 8 0 rwobjpl 40 13638 0 11192 26 0 26 26 0 8 0 pdppl 4096 828 0 770 96 30 66 80 0 8 8 pvpl 32 210151 0 202354 73 2 71 73 0 265 0 pmappl 216 410 0 385 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 361 0 44 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a820a88,ffffffffffffffff,0,80000512,fffffd8078db8000,fffffd8007bfb6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a820a88,ffffffffffffffff,0,80000512,fffffd8078db8000,fffffd8007bfb6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8078db8000,4,512,ffffffff,ffff80002a820a88) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8078db8000,4,512,ffffffff,ffff80002a820a88) at doktrace+0x560 sys/kern/kern_ktrace.c:502 sys_ktrace(ffff80002a820a88,ffff80003c9a5cc0,ffff80003c9a5c10) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9a5cc0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9a5cc0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7757aa7acd0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a820a88,ffffffffffffffff,0,80000512,fffffd8078db8000,fffffd8007bfb6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a820a88,ffffffffffffffff,0,80000512,fffffd8078db8000,fffffd8007bfb6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8078db8000,4,512,ffffffff,ffff80002a820a88) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8078db8000,4,512,ffffffff,ffff80002a820a88) at doktrace+0x560 sys/kern/kern_ktrace.c:502 sys_ktrace(ffff80002a820a88,ffff80003c9a5cc0,ffff80003c9a5c10) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9a5cc0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9a5cc0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7757aa7acd0, count: -5