uvm_fault(0xfffffd806ca95740, 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 *281261 85046 0 0 0x4000000 0 syz-executor ktrops(ffff80002f0b0fa8,ffffffffffffffff,0,a0c7df9f,fffffd806ce1abe0,fffffd8007ffd410) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002f0b0fa8,ffffffffffffffff,0,a0c7df9f,fffffd806ce1abe0,fffffd8007ffd410) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffffd806ce1abe0,4,20c7df9f,0,ffff80002f0b0fa8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffffd806ce1abe0,4,20c7df9f,0,ffff80002f0b0fa8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002f0b0fa8,ffff800035cc3670,ffff800035cc35c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff800035cc3670) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800035cc3670) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x95ee2fb90a0, 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(0xfffffd806ca95740, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002f0b0fa8,ffffffffffffffff,0,a0c7df9f,fffffd806ce1abe0,fffffd8007ffd410) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002f0b0fa8,ffffffffffffffff,0,a0c7df9f,fffffd806ce1abe0,fffffd8007ffd410) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffffd806ce1abe0,4,20c7df9f,0,ffff80002f0b0fa8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffffd806ce1abe0,4,20c7df9f,0,ffff80002f0b0fa8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002f0b0fa8,ffff800035cc3670,ffff800035cc35c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff800035cc3670) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800035cc3670) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x95ee2fb90a0, count: -5 ddb> show registers rdi 0xffff80002f0b0fa8 rsi 0xffffffffffffffff rbp 0xffff800035cc3390 rbx 0xfffffd8007ffd410 rdx 0 rcx 0xa0c7df9f rax 0xffff80002f0b0fa8 r8 0xfffffd806ce1abe0 r9 0xfffffd8007ffd410 r10 0xa28228f6de4a1949 r11 0xa572195f7b1a83c2 r12 0xffff80002f0b0fa8 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff81cdf378 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800035cc3310 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=281261 pid=85046 tcnt=3 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=0xffff80002f0b02b0,0xffff80003c8fb4f0 process=0xffff8000ffff8d98 user=0xffff800035cbe000, vmspace=0xfffffd806ca95740 estcpu=6, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 28354 300312 25167 0 2 0 syz-executor 28354 479402 25167 0 3 0x4000080 fsleep syz-executor 96503 101232 47994 0 2 0 syz-executor 96503 22294 47994 0 3 0x4000080 nanoslp syz-executor 96503 109164 47994 0 2 0x4000000 syz-executor 85046 440012 69423 0 2 0 syz-executor *85046 281261 69423 0 7 0x4000000 syz-executor 85046 239148 69423 0 3 0x4000080 fsleep syz-executor 69192 418742 86934 0 2 0 syz-executor 69192 300474 86934 0 3 0x4000080 netacc syz-executor 95451 502659 92571 0 2 0xc80 syz-executor 95451 318979 92571 0 3 0x4000080 lockf syz-executor 95451 394256 92571 0 3 0x4000080 lockf syz-executor 95451 123235 92571 0 3 0x4000080 fsleep syz-executor 88148 137254 1 0 3 0x82 nanoslp getty 47066 103882 69239 0 3 0x80 nanoslp syz-executor 47066 303585 69239 0 3 0x4000080 semwait syz-executor 47066 439735 69239 0 3 0x4000080 fsleep syz-executor 47066 501112 69239 0 3 0x4000080 fsleep syz-executor 92571 82777 76834 0 2 0xc82 syz-executor 33223 124619 76834 0 2 0x2 syz-executor 86934 235232 76834 0 3 0x82 nanoslp syz-executor 47994 444758 76834 0 2 0xc82 syz-executor 69423 213590 76834 0 3 0x82 nanoslp syz-executor 69239 507925 76834 0 2 0xc82 syz-executor 25167 155377 76834 0 3 0x82 nanoslp syz-executor 97623 278139 76834 0 2 0x2 syz-executor 76834 184766 97882 0 3 0x82 kqread syz-executor 97882 70947 36527 0 3 0x10008a sigsusp ksh 36527 421301 72490 0 3 0x98 kqread sshd-session 72490 35938 88214 0 3 0x92 kqread sshd-session 88214 386656 1 0 3 0x88 kqread sshd 84860 393710 40868 73 3 0x1100090 kqread syslogd 40868 24579 1 0 3 0x100082 sbwait syslogd 88961 383165 1 0 3 0x100080 kqread resolvd 94429 282009 7716 77 3 0x100092 kqread dhcpleased 10139 185875 7716 77 3 0x100092 kqread dhcpleased 7716 378680 1 0 3 0x80 kqread dhcpleased 47054 317783 0 0 3 0x14200 bored smr 3481 149896 0 0 2 0x14200 zerothread 22651 27908 0 0 3 0x14200 aiodoned aiodoned 66242 423802 0 0 3 0x14200 syncer update 33572 152509 0 0 3 0x14200 cleaner cleaner 6018 208038 0 0 3 0x14200 reaper reaper 16972 331111 0 0 3 0x14200 pgdaemon pagedaemon 36066 7610 0 0 3 0x14200 bored viomb 1601 251231 0 0 3 0x40014200 acpi0 acpi0 40049 165983 0 0 2 0x14200 softnet0 39679 163642 0 0 3 0x14200 smrbar systqmp 82005 53998 0 0 3 0x14200 bored systq 93072 233810 0 0 3 0x40014200 tmoslp softclock 78304 358418 0 0 3 0x40014200 idle0 1 318623 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 11031 12097K 12264K 166960K 12145 0 pcb 18 12K 12K 166960K 31 0 rtable 217 6K 6K 166960K 355 0 pf 28 12K 16K 166960K 37 0 ifaddr 38 6K 7K 166960K 45 0 ifgroup 46 2K 2K 166960K 52 0 sysctl 1 1K 9K 166960K 5 0 counters 32 17K 17K 166960K 34 0 ioctlops 0 0K 4K 166960K 32 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1289 81K 81K 166960K 1371 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 4 0K 0K 166960K 6 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 89K 166960K 162 0 proc 60 67K 108K 166960K 521 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 2 0 in_multi 88 6K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 370 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 211 150K 160K 166960K 3035 0 UVM aobj 3 2K 2K 166960K 4 0 pinsyscall 37 74K 92K 166960K 1266 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1 0 NDP 24 1K 2K 166960K 28 0 temp 35 9102K 9166K 166960K 6477 0 kqueue 13 20K 22K 166960K 30 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 136 112 0 12 4 0 4 4 0 8 0 unpcb 144 41 0 25 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 17 0 13 1 0 1 1 0 8 0 arp 96 18 0 2 1 0 1 1 0 8 0 inpcb 328 85 0 73 2 0 2 2 0 8 0 nd6 112 24 0 3 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 1 0 1 1 0 1 1 0 8 1 pfanchor 1288 1 0 1 1 0 1 1 0 8 1 pfrule 1360 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 256 459 0 6 29 0 29 29 0 8 0 art_table 40 460 0 6 5 0 5 5 0 8 0 art_node 32 112 0 22 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 72 3 0 1 1 0 1 1 0 8 0 shmpl 112 1 0 1 1 0 1 1 0 8 1 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1599 0 135 92 0 92 92 0 8 0 ffsino 256 1599 0 135 92 0 92 92 0 8 0 nchpl 144 1838 0 142 63 0 63 63 0 8 0 vnodes 216 1691 0 0 94 0 94 94 0 8 0 namei 1024 5951 0 5950 2 0 2 2 0 8 1 kstatmem 264 25 0 4 2 0 2 2 0 8 0 scxspl 216 6105 0 6105 3 0 3 3 1 8 3 plimitpl 152 34 0 16 1 0 1 1 0 8 0 sigapl 424 458 0 417 6 0 6 6 0 8 1 knotepl 120 12604 0 12557 9 0 9 9 0 8 7 kqueuepl 184 96 0 85 4 0 4 4 0 8 3 pipepl 304 155 0 96 5 0 5 5 0 8 0 fdescpl 448 445 0 417 5 0 5 5 0 8 1 filepl 120 1919 0 1625 11 0 11 11 0 8 1 lockfpl 104 17 0 10 1 0 1 1 0 8 0 lockfspl 48 8 0 4 1 0 1 1 0 8 0 sessionpl 144 24 0 17 1 0 1 1 0 8 0 pgrppl 48 65 0 50 1 0 1 1 0 8 0 ucredpl 104 227 0 216 1 0 1 1 0 8 0 zombiepl 144 417 0 417 1 0 1 1 0 8 1 processpl 1152 458 0 417 4 0 4 4 0 8 0 procpl 664 505 0 452 6 0 6 6 0 8 0 sockpl 552 164 0 133 3 0 3 3 0 8 0 mcl64k 65536 2 0 2 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2503 0 2441 15 0 15 15 0 8 7 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 171 0 170 1 0 1 1 0 8 0 mtagpl 96 6 0 6 1 0 1 1 0 8 1 mbufpl 256 4408 0 4270 9 0 9 9 0 8 0 bufpl 280 2310 0 102 158 0 158 158 0 8 0 anonpl 24 74587 0 71498 20 0 20 20 0 186 0 amapchunkpl 152 8334 0 7895 20 0 20 20 0 158 0 amappl16 200 879 0 857 4 0 4 4 0 8 2 amappl15 192 1 0 1 1 0 1 1 0 8 1 amappl14 184 408 0 407 1 0 1 1 0 8 0 amappl13 176 115 0 104 1 0 1 1 0 8 0 amappl12 168 683 0 656 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 0 1 1 0 8 1 amappl10 152 58 0 48 1 0 1 1 0 8 0 amappl9 144 273 0 273 1 0 1 1 0 8 1 amappl8 136 94 0 93 1 0 1 1 0 8 0 amappl7 128 143 0 132 1 0 1 1 0 8 0 amappl6 120 144 0 143 1 0 1 1 0 8 0 amappl5 112 90 0 82 1 0 1 1 0 8 0 amappl4 104 265 0 248 1 0 1 1 0 8 0 amappl3 96 1557 0 1458 3 0 3 3 0 8 0 amappl2 88 521 0 469 2 0 2 2 0 8 0 amappl1 80 10252 0 9703 13 0 13 13 0 8 0 amappl 88 2342 0 2193 4 0 4 4 0 92 0 uvmvnodes 80 99 0 0 3 0 3 3 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 128 253 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 3 0 1 1 0 1 1 0 8 0 uaddrrnd 24 445 0 417 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 445 0 417 1 0 1 1 0 8 0 vmmpekpl 168 5615 0 5571 3 0 3 3 0 8 0 vmmpepl 168 36837 0 35117 81 0 81 81 0 357 1 vmsppl 368 444 0 417 4 0 4 4 0 8 1 rwobjpl 40 13386 0 12456 11 0 11 11 0 8 0 pdppl 4096 896 0 834 92 14 78 78 0 8 16 pvpl 32 199752 0 191512 73 0 73 73 0 265 2 pmappl 216 444 0 417 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 353 0 14 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002f0b0fa8,ffffffffffffffff,0,a0c7df9f,fffffd806ce1abe0,fffffd8007ffd410) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002f0b0fa8,ffffffffffffffff,0,a0c7df9f,fffffd806ce1abe0,fffffd8007ffd410) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffffd806ce1abe0,4,20c7df9f,0,ffff80002f0b0fa8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffffd806ce1abe0,4,20c7df9f,0,ffff80002f0b0fa8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002f0b0fa8,ffff800035cc3670,ffff800035cc35c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff800035cc3670) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800035cc3670) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x95ee2fb90a0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002f0b0fa8,ffffffffffffffff,0,a0c7df9f,fffffd806ce1abe0,fffffd8007ffd410) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002f0b0fa8,ffffffffffffffff,0,a0c7df9f,fffffd806ce1abe0,fffffd8007ffd410) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffffd806ce1abe0,4,20c7df9f,0,ffff80002f0b0fa8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffffd806ce1abe0,4,20c7df9f,0,ffff80002f0b0fa8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002f0b0fa8,ffff800035cc3670,ffff800035cc35c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff800035cc3670) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800035cc3670) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x95ee2fb90a0, count: -5