uvm_fault(0xfffffd806bba7d00, 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 *492973 71000 0 0 0x4000000 0 syz-executor ktrops(ffff80002a814a70,ffffffffffffffff,0,a0c7df9f,fffffd80774d0dc8,fffffd8007bfb750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a814a70,ffffffffffffffff,0,a0c7df9f,fffffd80774d0dc8,fffffd8007bfb750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80774d0dc8,4,20c7df9f,0,ffff80002a814a70) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80774d0dc8,4,20c7df9f,0,ffff80002a814a70) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a814a70,ffff80003c997bf0,ffff80003c997b40) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c997bf0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c997bf0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2a966b4d770, 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(0xfffffd806bba7d00, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a814a70,ffffffffffffffff,0,a0c7df9f,fffffd80774d0dc8,fffffd8007bfb750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a814a70,ffffffffffffffff,0,a0c7df9f,fffffd80774d0dc8,fffffd8007bfb750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80774d0dc8,4,20c7df9f,0,ffff80002a814a70) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80774d0dc8,4,20c7df9f,0,ffff80002a814a70) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a814a70,ffff80003c997bf0,ffff80003c997b40) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c997bf0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c997bf0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2a966b4d770, count: -5 ddb> show registers rdi 0xffff80002a814a70 rsi 0xffffffffffffffff rbp 0xffff80003c997910 rbx 0xfffffd8007bfb750 rdx 0 rcx 0xa0c7df9f rax 0xffff80002a814a70 r8 0xfffffd80774d0dc8 r9 0xfffffd8007bfb750 r10 0x843a578bc56c3ee6 r11 0xca6db4c5c5fd333f r12 0xffff80002a814a70 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff81bed0a8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c997890 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=492973 pid=71000 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=53, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a814030,0xffff80002a814d10 process=0xffff80003c976dd0 user=0xffff80003c992000, vmspace=0xfffffd806bba7d00 estcpu=3, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 46727 262539 0 0 3 0x14200 bored sosplice 71000 139 72361 0 2 0 syz-executor *71000 492973 72361 0 7 0x4000000 syz-executor 42725 462385 55154 0 2 0 syz-executor 42725 445929 55154 0 3 0x4000080 fsleep syz-executor 38510 253988 96029 0 2 0 syz-executor 38510 49860 96029 0 3 0x4000080 ttyout syz-executor 32731 125735 11486 60929 2 0x10 syz-executor 32731 3112 11486 60929 3 0x4000090 fsleep syz-executor 32731 126554 11486 60929 3 0x4000090 fsleep syz-executor 14367 334061 30304 0 2 0 syz-executor 14367 888 30304 0 3 0x4000080 fsleep syz-executor 40493 418682 13714 0 2 0 syz-executor 40493 144989 13714 0 3 0x4000080 kqsel syz-executor 40493 369756 13714 0 2 0x4000000 syz-executor 40493 107514 13714 0 2 0x4000000 syz-executor 79137 59023 52290 0 2 0x2 syz-executor 30304 4598 52290 0 2 0xc82 syz-executor 96029 191978 52290 0 3 0x82 nanoslp syz-executor 56749 253838 52290 0 3 0x82 nanoslp syz-executor 72361 61890 52290 0 3 0x82 nanoslp syz-executor 13714 366118 52290 0 2 0xc82 syz-executor 11486 315809 52290 0 3 0x82 nanoslp syz-executor 55154 102714 52290 0 3 0x82 nanoslp syz-executor 52290 82787 60050 0 3 0x82 kqread syz-executor 60050 421292 51955 0 3 0x10008a sigsusp ksh 51955 315555 80558 0 3 0x98 kqread sshd-session 80558 207606 19595 0 3 0x92 kqread sshd-session 62533 394926 1 0 3 0x100083 ttyin getty 19595 431115 1 0 3 0x88 kqread sshd 3400 450080 21252 73 3 0x1100090 kqread syslogd 21252 75247 1 0 3 0x100082 sbwait syslogd 93630 523976 1 0 3 0x100080 kqread resolvd 47443 439467 88583 77 3 0x100092 kqread dhcpleased 51945 396034 88583 77 3 0x100092 kqread dhcpleased 88583 499180 1 0 3 0x80 kqread dhcpleased 33634 244903 0 0 3 0x14200 bored smr 28517 404879 0 0 2 0x14200 zerothread 38728 75313 0 0 3 0x14200 aiodoned aiodoned 53280 26426 0 0 3 0x14200 syncer update 32940 155521 0 0 3 0x14200 cleaner cleaner 28807 465952 0 0 3 0x14200 reaper reaper 14312 356661 0 0 3 0x14200 pgdaemon pagedaemon 33732 239414 0 0 3 0x14200 bored viomb 12312 208271 0 0 3 0x40014200 acpi0 acpi0 31374 31944 0 0 3 0x14200 bored softnet7 75743 146023 0 0 3 0x14200 bored softnet6 89673 295764 0 0 3 0x14200 bored softnet5 2964 29692 0 0 3 0x14200 bored softnet4 40821 20024 0 0 3 0x14200 bored softnet3 76850 323732 0 0 3 0x14200 bored softnet2 26315 387142 0 0 3 0x14200 bored softnet1 35299 119453 0 0 2 0x14200 softnet0 59841 391303 0 0 3 0x14200 bored systqmp 66772 472330 0 0 3 0x14200 bored systq 93730 183739 0 0 3 0x40014200 tmoslp softclock 86301 97451 0 0 3 0x40014200 idle0 1 517144 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 10182 11108K 11303K 166960K 11324 0 pcb 18 12K 12K 166960K 18 0 rtable 205 5K 5K 166960K 257 0 pf 30 12K 12K 166960K 30 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 9K 166960K 5 0 counters 32 17K 17K 166960K 32 0 ioctlops 0 0K 2K 166960K 32 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1403 88K 88K 166960K 1494 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 6K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 3 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 97K 166960K 155 0 sigio 0 0K 0K 166960K 3 0 proc 60 59K 124K 166960K 476 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 99 7K 7K 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 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 344 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 220 151K 159K 166960K 2906 0 UVM aobj 5 2K 2K 166960K 5 0 pinsyscall 38 76K 96K 166960K 1177 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 11 0K 2K 166960K 27 0 temp 36 8662K 8726K 166960K 3842 0 kqueue 14 22K 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 37 0 33 1 0 1 1 0 8 0 rtentry 136 95 0 1 4 0 4 4 0 8 0 unpcb 144 42 0 27 1 0 1 1 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 11 0 7 1 0 1 1 0 8 0 arp 88 10 0 0 1 0 1 1 0 8 0 inpcb 328 68 0 58 2 1 1 2 0 8 0 nd6 104 16 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 437 0 0 28 0 28 28 0 8 0 art_table 40 438 0 0 5 0 5 5 0 8 0 art_node 32 95 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 1 0 1 0 8 0 semapl 112 1 0 0 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1647 0 138 95 0 95 95 0 8 0 ffsino 256 1647 0 138 95 0 95 95 0 8 0 nchpl 144 1860 0 179 63 0 63 63 0 8 0 uvmvnodes 80 1802 0 0 37 0 37 37 0 8 0 vnodes 216 1802 0 0 101 0 101 101 0 8 0 namei 1024 5622 0 5621 2 1 1 2 0 8 0 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 6189 0 6189 8 7 1 8 1 8 1 plimitpl 152 31 0 13 1 0 1 1 0 8 0 sigapl 424 438 0 388 7 1 6 7 0 8 0 knotepl 120 3732 0 3684 2 0 2 2 0 8 0 kqueuepl 184 26 0 14 1 0 1 1 0 8 0 pipepl 304 100 0 73 3 0 3 3 0 8 0 fdescpl 448 416 0 387 5 1 4 5 0 8 0 filepl 120 1653 0 1431 11 0 11 11 0 8 3 lockfpl 104 18 0 14 1 0 1 1 0 8 0 lockfspl 48 11 0 7 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 31 0 15 1 0 1 1 0 8 0 ucredpl 104 333 0 321 1 0 1 1 0 8 0 zombiepl 144 399 0 398 1 0 1 1 0 8 0 processpl 1168 438 0 388 5 1 4 5 0 8 0 procpl 656 482 0 423 7 1 6 6 0 8 0 sosppl 168 1 0 0 1 0 1 1 0 8 0 sockpl 552 147 0 118 3 0 3 3 0 8 0 mcl64k 65536 1 0 1 1 1 0 1 0 8 0 mcl16k 16384 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 4 0 4 1 1 0 1 0 8 0 mcl4k 4096 2451 0 2396 15 7 8 15 0 8 1 mcl2k 2048 184 0 183 2 1 1 1 0 8 0 mtagpl 96 5 0 4 1 0 1 1 0 8 0 mbufpl 256 3917 0 3762 12 1 11 11 0 8 0 bufpl 280 2848 0 117 196 0 196 196 0 8 0 anonpl 24 92214 0 89128 22 2 20 22 0 187 0 amapchunkpl 152 8284 0 7823 21 1 20 20 0 158 0 amappl16 200 1605 0 1581 5 3 2 5 0 8 0 amappl15 192 2 0 2 1 1 0 1 0 8 0 amappl14 184 106 0 96 1 0 1 1 0 8 0 amappl13 176 4 0 4 1 1 0 1 0 8 0 amappl12 168 1024 0 995 3 1 2 3 0 8 0 amappl11 160 48 0 38 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 247 0 247 1 1 0 1 0 8 0 amappl8 136 24 0 23 1 0 1 1 0 8 0 amappl7 128 93 0 83 1 0 1 1 0 8 0 amappl6 120 172 0 169 1 0 1 1 0 8 0 amappl5 112 114 0 107 1 0 1 1 0 8 0 amappl4 104 259 0 245 1 0 1 1 0 8 0 amappl3 96 1304 0 1201 3 0 3 3 0 8 0 amappl2 88 607 0 552 2 0 2 2 0 8 0 amappl1 80 7908 0 7355 13 0 13 13 0 8 0 amappl 88 2280 0 2124 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 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 416 0 387 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 416 0 387 1 0 1 1 0 8 0 vmmpekpl 168 4849 0 4823 2 0 2 2 0 8 0 vmmpepl 168 32548 0 30734 84 2 82 82 0 357 0 vmsppl 368 415 0 387 4 1 3 4 0 8 0 rwobjpl 40 13628 0 10991 27 0 27 27 0 8 0 pdppl 4096 838 0 774 98 32 66 82 0 8 2 pvpl 32 205454 0 196942 75 4 71 74 0 265 0 pmappl 216 415 0 387 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 373 0 51 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a814a70,ffffffffffffffff,0,a0c7df9f,fffffd80774d0dc8,fffffd8007bfb750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a814a70,ffffffffffffffff,0,a0c7df9f,fffffd80774d0dc8,fffffd8007bfb750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80774d0dc8,4,20c7df9f,0,ffff80002a814a70) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80774d0dc8,4,20c7df9f,0,ffff80002a814a70) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a814a70,ffff80003c997bf0,ffff80003c997b40) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c997bf0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c997bf0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2a966b4d770, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a814a70,ffffffffffffffff,0,a0c7df9f,fffffd80774d0dc8,fffffd8007bfb750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a814a70,ffffffffffffffff,0,a0c7df9f,fffffd80774d0dc8,fffffd8007bfb750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80774d0dc8,4,20c7df9f,0,ffff80002a814a70) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80774d0dc8,4,20c7df9f,0,ffff80002a814a70) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a814a70,ffff80003c997bf0,ffff80003c997b40) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c997bf0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c997bf0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2a966b4d770, count: -5