uvm_fault(0xfffffd806d6b8740, 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 *164351 57712 0 0 0x4000000 0 syz-executor ktrops(ffff80002a7774d0,ffffffffffffffff,0,80000832,fffffd8068366e68,fffffd8007ffd820) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7774d0,ffffffffffffffff,0,80000832,fffffd8068366e68,fffffd8007ffd820) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8068366e68,4,832,0,ffff80002a7774d0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8068366e68,4,832,0,ffff80002a7774d0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7774d0,ffff8000378d32f0,ffff8000378d3240) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff8000378d32f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000378d32f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x424993680, 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(0xfffffd806d6b8740, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a7774d0,ffffffffffffffff,0,80000832,fffffd8068366e68,fffffd8007ffd820) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7774d0,ffffffffffffffff,0,80000832,fffffd8068366e68,fffffd8007ffd820) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8068366e68,4,832,0,ffff80002a7774d0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8068366e68,4,832,0,ffff80002a7774d0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7774d0,ffff8000378d32f0,ffff8000378d3240) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff8000378d32f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000378d32f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x424993680, count: -5 ddb> show registers rdi 0xffff8000384e6000 rsi 0x45eb __ALIGN_SIZE+0x35eb rbp 0xffff8000378d3010 rbx 0xfffffd8007ffd820 rdx 0xffff8000384e6000 rcx 0x45ea __ALIGN_SIZE+0x35ea rax 0xffffffff832121d3 ktrops+0x43 r8 0xfffffd8068366e68 r9 0xfffffd8007ffd820 r10 0x2252195b4e421404 r11 0x8be5f06f252bf4ef r12 0xffff80002a7774d0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000832 __kernel_virt_to_phys+0x832 rip 0xffffffff832121e8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000378d2f90 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=164351 pid=57712 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=79, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a777768,0xffff80002a7762b8 process=0xffff8000ffff8d98 user=0xffff8000378ce000, vmspace=0xfffffd806d6b8740 estcpu=29, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 21849 175432 1 0 3 0x82 nanoslp getty 57712 106174 45244 0 2 0xc80 syz-executor 57712 143091 45244 0 3 0x4000080 fsleep syz-executor *57712 164351 45244 0 7 0x4000000 syz-executor 57712 246575 45244 0 3 0x4000080 fsleep syz-executor 3017 200434 9202 0 3 0x82 nanoslp syz-executor 45244 358402 9202 0 3 0x82 nanoslp syz-executor 44762 138880 9202 0 2 0x2 syz-executor 58760 118266 9202 0 2 0x2 syz-executor 61607 513097 9202 0 3 0x2 biowait syz-executor 90009 380288 9202 0 2 0x2 syz-executor 94544 200834 9202 0 3 0x2 biowait syz-executor 1355 174174 9202 0 2 0x2 syz-executor 9202 114572 1 0 3 0x82 kqread syz-executor 28648 369193 1 0 2 0x10102802 syslogd 74945 508032 1 0 2 0x102800 resolvd 75191 290788 0 0 3 0x14200 bored smr 87715 484174 0 0 3 0x14200 pgzero zerothread 32665 193541 0 0 3 0x14200 aiodoned aiodoned 39295 375868 0 0 3 0x14200 syncer update 83364 37083 0 0 3 0x14200 cleaner cleaner 22915 48999 0 0 3 0x14200 reaper reaper 5609 341952 0 0 3 0x14200 pgdaemon pagedaemon 59190 503931 0 0 3 0x14200 bored viomb 41375 40195 0 0 3 0x40014200 acpi0 acpi0 46668 39014 0 0 3 0x14200 bored softnet0 52845 195953 0 0 3 0x14200 smrbar systqmp 28677 285926 0 0 3 0x14200 bored systq 69857 251293 0 0 3 0x40014200 tmoslp softclock 97629 125670 0 0 3 0x40014200 idle0 1 160319 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 11033 12100K 12374K 166960K 12455 0 pcb 17 12K 12K 166960K 43 0 rtable 245 8K 9K 166960K 418 0 pf 32 13K 14K 166960K 53 0 ifaddr 41 7K 7K 166960K 57 0 ifgroup 54 2K 2K 166960K 81 0 sysctl 3 1K 9K 166960K 7 0 counters 34 17K 18K 166960K 50 0 ioctlops 0 0K 4K 166960K 160 0 iov 0 0K 12K 166960K 2 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1302 82K 82K 166960K 1454 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 11 1K 1K 166960K 13 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 10 37K 244K 166960K 255 0 sigio 0 0K 0K 166960K 78 0 proc 54 43K 108K 166960K 509 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 92 6K 7K 166960K 104 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 381 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 118 98K 176K 166960K 3994 0 UVM aobj 9 2K 2K 166960K 9 0 pinsyscall 18 36K 94K 166960K 1357 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 3 0 NDP 12 0K 1K 166960K 37 0 temp 41 9075K 9161K 166960K 13776 0 kqueue 2 4K 30K 166960K 54 0 SYN cache 2 16K 24K 166960K 3 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 48 0 47 1 0 1 1 0 8 0 rtentry 136 118 0 16 4 0 4 4 0 8 0 unpcb 144 88 0 85 1 0 1 1 0 8 0 syncache 336 7 0 7 1 0 1 1 0 8 1 tcpcb 736 173 0 172 7 6 1 7 0 8 0 arp 96 18 0 2 1 0 1 1 0 8 0 inpcb 328 276 0 275 7 5 2 7 0 8 1 nd6 112 26 0 4 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 14 0 14 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 455 0 46 29 1 28 29 0 8 0 art_table 40 457 0 46 5 0 5 5 0 8 0 art_node 32 116 0 23 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 2 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 11 0 2 1 0 1 1 0 8 0 shmpl 112 6 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1769 0 301 92 0 92 92 0 8 0 ffsino 256 1769 0 301 92 0 92 92 0 8 0 nchpl 144 2127 0 438 63 0 63 63 0 8 0 rtmask 32 4 0 4 1 1 0 1 0 8 0 vnodes 216 1910 0 0 107 0 107 107 0 8 0 namei 1024 6681 0 6678 2 0 2 2 0 8 0 kstatmem 264 43 0 18 2 0 2 2 0 8 0 scxspl 216 8024 0 7961 10 2 8 8 1 8 2 plimitpl 152 112 0 99 1 0 1 1 0 8 0 sigapl 424 540 0 510 6 0 6 6 0 8 1 knotepl 120 7924 0 7905 20 11 9 15 0 8 7 kqueuepl 184 127 0 125 4 3 1 4 0 8 0 pipepl 304 126 0 99 3 0 3 3 0 8 0 fdescpl 448 527 0 511 5 1 4 5 0 8 0 filepl 120 2485 0 2320 11 3 8 11 0 8 0 lockfpl 104 69 0 68 1 0 1 1 0 8 0 lockfspl 48 34 0 33 1 0 1 1 0 8 0 sessionpl 144 35 0 31 1 0 1 1 0 8 0 pgrppl 48 45 0 33 1 0 1 1 0 8 0 ucredpl 104 232 0 224 1 0 1 1 0 8 0 zombiepl 144 512 0 510 1 0 1 1 0 8 0 processpl 1152 540 0 510 4 0 4 4 0 8 0 procpl 664 728 0 695 5 0 5 5 0 8 0 sosppl 176 1 0 1 1 1 0 1 0 8 0 sockpl 552 412 0 407 7 4 3 7 0 8 1 mcl64k 65536 42 0 42 1 1 0 1 0 8 0 mcl16k 16384 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 7 0 7 1 1 0 1 0 8 0 mcl4k 4096 2636 0 2582 14 6 8 14 0 8 0 mcl2k 2048 268 0 266 2 1 1 2 0 8 0 mtagpl 96 10 0 6 1 0 1 1 0 8 0 mbufpl 256 5681 0 5538 15 2 13 15 0 8 0 bufpl 280 3517 0 102 244 0 244 244 0 8 0 anonpl 24 108595 0 105674 31 7 24 31 0 187 0 amapchunkpl 152 11806 0 11462 26 6 20 26 0 158 1 amappl16 200 1702 0 1685 5 2 3 5 0 8 0 amappl15 192 1 0 1 1 1 0 1 0 8 0 amappl14 184 413 0 413 1 1 0 1 0 8 0 amappl13 176 118 0 115 1 0 1 1 0 8 0 amappl12 168 812 0 797 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 1 0 1 0 8 0 amappl10 152 63 0 61 1 0 1 1 0 8 0 amappl9 144 263 0 263 1 1 0 1 0 8 0 amappl8 136 123 0 123 1 1 0 1 0 8 0 amappl7 128 172 0 170 1 0 1 1 0 8 0 amappl6 120 165 0 164 1 0 1 1 0 8 0 amappl5 112 94 0 92 1 0 1 1 0 8 0 amappl4 104 264 0 259 1 0 1 1 0 8 0 amappl3 96 2163 0 2110 3 0 3 3 0 8 0 amappl2 88 543 0 534 2 0 2 2 0 8 0 amappl1 80 10413 0 10314 15 2 13 15 0 8 2 amappl 88 3231 0 3144 4 0 4 4 0 92 0 uvmvnodes 80 101 0 0 3 0 3 3 0 8 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 8 0 0 1 0 1 1 0 8 0 uaddrrnd 24 527 0 511 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 527 0 511 1 0 1 1 0 8 0 vmmpekpl 168 6310 0 6275 2 0 2 2 0 8 0 vmmpepl 168 42995 0 42341 92 25 67 92 0 357 16 vmsppl 368 526 0 511 4 1 3 4 0 8 0 rwobjpl 40 15218 0 14820 12 1 11 12 0 8 0 pdppl 4096 1060 0 1022 104 54 50 80 0 8 12 pvpl 32 261092 0 255853 91 21 70 91 0 265 3 pmappl 216 526 0 511 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 378 0 77 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a7774d0,ffffffffffffffff,0,80000832,fffffd8068366e68,fffffd8007ffd820) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7774d0,ffffffffffffffff,0,80000832,fffffd8068366e68,fffffd8007ffd820) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8068366e68,4,832,0,ffff80002a7774d0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8068366e68,4,832,0,ffff80002a7774d0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7774d0,ffff8000378d32f0,ffff8000378d3240) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff8000378d32f0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000378d32f0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x424993680, count: -5 ddb> machine ddbcpu 1 No such command ddb>