uvm_fault(0xfffffd8064544018, 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 *417539 70021 0 0 0x4000000 0 syz-executor ktrops(ffff800035d0ed20,ffffffffffffffff,0,a0c7df9f,fffffd8060af6a68,fffffd8007bfb4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800035d0ed20,ffffffffffffffff,0,a0c7df9f,fffffd8060af6a68,fffffd8007bfb4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8060af6a68,4,20c7df9f,0,ffff800035d0ed20) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8060af6a68,4,20c7df9f,0,ffff800035d0ed20) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800035d0ed20,ffff800038125220,ffff800038125170) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800038125220) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800038125220) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x46fe256ad10, 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(0xfffffd8064544018, 0xf, 0, 1) -> e ddb> trace ktrops(ffff800035d0ed20,ffffffffffffffff,0,a0c7df9f,fffffd8060af6a68,fffffd8007bfb4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800035d0ed20,ffffffffffffffff,0,a0c7df9f,fffffd8060af6a68,fffffd8007bfb4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8060af6a68,4,20c7df9f,0,ffff800035d0ed20) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8060af6a68,4,20c7df9f,0,ffff800035d0ed20) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800035d0ed20,ffff800038125220,ffff800038125170) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800038125220) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800038125220) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x46fe256ad10, count: -5 ddb> show registers rdi 0xffff80002a8f6000 rsi 0x4edd __ALIGN_SIZE+0x3edd rbp 0xffff800038124f40 rbx 0xfffffd8007bfb4e0 rdx 0xffff80002a8f6000 rcx 0x4edc __ALIGN_SIZE+0x3edc rax 0xffffffff81dd5f23 ktrops+0x43 r8 0xfffffd8060af6a68 r9 0xfffffd8007bfb4e0 r10 0x6b6a981ae392e800 r11 0x4d22e75456c2b8d4 r12 0xffff800035d0ed20 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff81dd5f38 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800038124ec0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=417539 pid=70021 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=0xffff800035d0efb8,0xffff800035d0f790 process=0xffff8000ffff9b18 user=0xffff800038120000, vmspace=0xfffffd8064544018 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 70021 477117 87339 0 2 0 syz-executor *70021 417539 87339 0 7 0x4000000 syz-executor 10097 25792 58286 0 2 0 syz-executor 10097 370587 58286 0 3 0x4000080 fsleep syz-executor 11107 281381 70995 0 2 0 syz-executor 11107 289332 70995 0 3 0x4000080 kqsel syz-executor 11107 495085 70995 0 3 0x4000080 fsleep syz-executor 27965 397647 52621 0 2 0 syz-executor 27965 233272 52621 0 3 0x4000080 fsleep syz-executor 54707 408977 87352 0 2 0x2 syz-executor 52621 451823 87352 0 3 0x82 nanoslp syz-executor 20168 236330 87352 0 3 0x82 nanoslp syz-executor 26236 413446 87352 0 2 0x2 syz-executor 58286 277491 87352 0 2 0xc82 syz-executor 70995 485648 87352 0 2 0xc82 syz-executor 23696 195025 87352 0 3 0x82 wait syz-executor 87339 448156 87352 0 3 0x82 nanoslp syz-executor 87352 367167 57938 0 3 0x82 kqread syz-executor 57938 304240 14683 0 3 0x10008a sigsusp ksh 14683 59120 6692 0 3 0x98 kqread sshd-session 6692 205091 21393 0 3 0x92 kqread sshd-session 49730 259190 1 0 3 0x100083 ttyin getty 21393 469439 1 0 3 0x88 kqread sshd 44649 520109 39892 73 3 0x1100090 kqread syslogd 39892 433746 1 0 3 0x100082 sbwait syslogd 77787 273943 1 0 3 0x100080 kqread resolvd 36611 8663 19631 77 3 0x100092 kqread dhcpleased 72938 134056 19631 77 3 0x100092 kqread dhcpleased 19631 484597 1 0 3 0x80 kqread dhcpleased 71179 498722 0 0 3 0x14200 bored smr 4609 177187 0 0 2 0x14200 zerothread 86601 482367 0 0 3 0x14200 aiodoned aiodoned 46225 241978 0 0 3 0x14200 syncer update 89023 242972 0 0 3 0x14200 cleaner cleaner 70464 465096 0 0 3 0x14200 reaper reaper 58938 72301 0 0 3 0x14200 pgdaemon pagedaemon 92952 373966 0 0 3 0x14200 bored viomb 38523 461142 0 0 3 0x40014200 acpi0 acpi0 91814 393000 0 0 3 0x14200 bored softnet0 64454 227564 0 0 3 0x14200 bored systqmp 93912 204892 0 0 3 0x14200 bored systq 52731 260174 0 0 3 0x40014200 tmoslp softclock 89316 263343 0 0 3 0x40014200 idle0 1 426926 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 10194 11191K 11317K 166960K 11488 0 pcb 18 12K 12K 166960K 56 0 rtable 211 6K 6K 166960K 278 0 pf 33 13K 14K 166960K 57 0 ifaddr 44 7K 8K 166960K 54 0 ifgroup 52 2K 2K 166960K 74 0 sysctl 1 1K 9K 166960K 5 0 counters 33 17K 18K 166960K 39 0 ioctlops 0 0K 4K 166960K 50 0 iov 0 0K 12K 166960K 7 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1376 87K 87K 166960K 1515 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 10 0K 0K 166960K 16 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 240K 166960K 309 0 sigio 0 0K 0K 166960K 2 0 proc 60 59K 83K 166960K 491 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 11 0 in_multi 99 7K 7K 166960K 112 0 ether_multi 1 0K 0K 166960K 8 0 mrt 0 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 352 0 fusefs mount 1 32K 32K 166960K 1 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 216 159K 176K 166960K 4186 0 UVM aobj 6 2K 2K 166960K 6 0 pinsyscall 37 74K 88K 166960K 1333 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 12 0 NDP 12 0K 2K 166960K 33 0 temp 42 8639K 8704K 166960K 10730 0 kqueue 14 22K 28K 166960K 68 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 43 0 40 1 0 1 1 0 8 0 rtentry 136 103 0 7 4 0 4 4 0 8 0 unpcb 144 180 0 165 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 133 0 127 2 0 2 2 0 8 1 arp 96 12 0 1 1 0 1 1 0 8 0 inpcb 328 305 0 295 2 0 2 2 0 8 1 ip6q 72 1 0 0 1 0 1 1 0 8 0 ip6af 40 1 0 0 1 0 1 1 0 8 0 nd6 112 16 0 0 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 3 0 2 1 0 1 1 0 8 0 pppxif 1384 1 0 1 1 0 1 1 0 8 1 pfstscr 40 1 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 2 0 0 1 0 1 1 0 8 0 pfstate 384 1 0 0 1 0 1 1 0 8 0 pfrule 1344 3 0 3 1 0 1 1 0 8 1 rttmr 136 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 256 483 0 45 30 0 30 30 0 8 2 art_table 40 484 0 45 5 0 5 5 0 8 0 art_node 32 103 0 19 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 3 1 0 1 1 0 8 0 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 14 0 6 1 0 1 1 0 8 0 shmpl 112 3 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1868 0 366 95 0 95 95 0 8 0 ffsino 256 1868 0 366 95 0 95 95 0 8 0 nchpl 144 2262 0 577 63 0 63 63 0 8 0 vnodes 216 2053 0 0 115 0 115 115 0 8 0 namei 1024 7613 0 7612 2 0 2 2 0 8 1 kstatmem 264 34 0 10 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 8244 0 8244 8 0 8 8 1 8 8 plimitpl 152 49 0 33 1 0 1 1 0 8 0 sigapl 424 576 0 535 6 0 6 6 0 8 1 knotepl 120 9261 0 9213 10 0 10 10 0 8 8 kqueuepl 184 93 0 82 1 0 1 1 0 8 0 pipepl 304 112 0 85 3 0 3 3 0 8 0 fdescpl 448 561 0 533 4 0 4 4 0 8 0 filepl 120 2451 0 2236 10 0 10 10 0 8 2 lockfpl 104 210 0 205 2 0 2 2 0 8 1 lockfspl 48 38 0 33 1 0 1 1 0 8 0 sessionpl 144 22 0 14 1 0 1 1 0 8 0 pgrppl 48 31 0 15 1 0 1 1 0 8 0 ucredpl 104 226 0 215 1 0 1 1 0 8 0 zombiepl 144 537 0 535 1 0 1 1 0 8 0 processpl 1152 576 0 535 4 0 4 4 0 8 0 procpl 664 840 0 794 6 0 6 6 0 8 1 sockpl 552 657 0 629 4 0 4 4 0 8 1 mcl64k 65536 9 0 9 1 0 1 1 0 8 1 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2667 0 2613 15 0 15 15 0 8 7 mcl2k 2048 371 0 369 1 0 1 1 0 8 0 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 5639 0 5467 20 1 19 20 0 8 7 bufpl 280 3174 0 117 219 0 219 219 0 8 0 anonpl 24 130578 0 127519 45 0 45 45 0 187 15 amapchunkpl 152 13752 0 13311 36 0 36 36 0 158 14 amappl16 200 2744 0 2718 18 8 10 14 0 8 8 amappl15 192 7 0 7 1 0 1 1 0 8 1 amappl14 184 106 0 96 1 0 1 1 0 8 0 amappl13 176 10 0 9 1 0 1 1 0 8 0 amappl12 168 1178 0 1150 2 0 2 2 0 8 0 amappl11 160 49 0 39 1 0 1 1 0 8 0 amappl10 152 6 0 6 1 0 1 1 0 8 1 amappl9 144 247 0 247 1 0 1 1 0 8 1 amappl8 136 26 0 25 1 0 1 1 0 8 0 amappl7 128 99 0 89 1 0 1 1 0 8 0 amappl6 120 170 0 167 1 0 1 1 0 8 0 amappl5 112 123 0 117 1 0 1 1 0 8 0 amappl4 104 270 0 254 1 0 1 1 0 8 0 amappl3 96 2059 0 1975 3 0 3 3 0 8 0 amappl2 88 792 0 720 2 0 2 2 0 8 0 amappl1 80 8840 0 8294 14 0 14 14 0 8 1 amappl 88 3504 0 3354 5 0 5 5 0 92 0 uvmvnodes 80 2053 0 0 42 0 42 42 0 8 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 5 0 0 1 0 1 1 0 8 0 uaddrrnd 24 561 0 533 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 561 0 533 1 0 1 1 0 8 0 vmmpekpl 168 5953 0 5917 2 0 2 2 0 8 0 vmmpepl 168 42666 0 40882 93 0 93 93 0 357 9 vmsppl 368 560 0 533 4 0 4 4 0 8 1 rwobjpl 40 16662 0 13774 31 0 31 31 0 8 1 pdppl 4096 1128 0 1066 92 26 66 76 0 8 4 pvpl 32 286459 0 278162 109 0 109 109 0 265 19 pmappl 216 560 0 533 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 370 0 27 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff800035d0ed20,ffffffffffffffff,0,a0c7df9f,fffffd8060af6a68,fffffd8007bfb4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800035d0ed20,ffffffffffffffff,0,a0c7df9f,fffffd8060af6a68,fffffd8007bfb4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8060af6a68,4,20c7df9f,0,ffff800035d0ed20) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8060af6a68,4,20c7df9f,0,ffff800035d0ed20) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800035d0ed20,ffff800038125220,ffff800038125170) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800038125220) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800038125220) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x46fe256ad10, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff800035d0ed20,ffffffffffffffff,0,a0c7df9f,fffffd8060af6a68,fffffd8007bfb4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800035d0ed20,ffffffffffffffff,0,a0c7df9f,fffffd8060af6a68,fffffd8007bfb4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8060af6a68,4,20c7df9f,0,ffff800035d0ed20) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8060af6a68,4,20c7df9f,0,ffff800035d0ed20) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800035d0ed20,ffff800038125220,ffff800038125170) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800038125220) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800038125220) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x46fe256ad10, count: -5