uvm_fault(0xfffff8006bdf1d00, 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 *393271 97375 0 0x1 0x4000000 0 syz-executor ktrops(ffff80003b8dcd18,ffffffffffffffff,0,80000510,fffff80075be02c0,fffff80007ffd8f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80003b8dcd18,ffffffffffffffff,0,80000510,fffff80075be02c0,fffff80007ffd8f0) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff80075be02c0,4,510,0,ffff80003b8dcd18) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff80075be02c0,4,510,0,ffff80003b8dcd18) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80003b8dcd18,ffff8000318adec0,ffff8000318ade10) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff8000318adec0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000318adec0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb23de3c73d0, 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(0xfffff8006bdf1d00, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80003b8dcd18,ffffffffffffffff,0,80000510,fffff80075be02c0,fffff80007ffd8f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80003b8dcd18,ffffffffffffffff,0,80000510,fffff80075be02c0,fffff80007ffd8f0) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff80075be02c0,4,510,0,ffff80003b8dcd18) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff80075be02c0,4,510,0,ffff80003b8dcd18) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80003b8dcd18,ffff8000318adec0,ffff8000318ade10) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff8000318adec0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000318adec0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb23de3c73d0, count: -5 ddb> show registers rdi 0xffff8000358ba000 rsi 0x1a6d __ALIGN_SIZE+0xa6d rbp 0xffff8000318adbe0 rbx 0xfffff80007ffd8f0 rdx 0xffff8000358ba000 rcx 0x1a6c __ALIGN_SIZE+0xa6c rax 0xffffffff82a5fa03 ktrops+0x43 r8 0xfffff80075be02c0 r9 0xfffff80007ffd8f0 r10 0x739cca826706f1c7 r11 0xa60a652bec6393a4 r12 0xffff80003b8dcd18 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000510 __kernel_virt_to_phys+0x510 rip 0xffffffff82a5fa18 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000318adb60 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=393271 pid=97375 tcnt=2 stat=onproc flags process=1 proc=4000000 runpri=17, usrpri=76, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003b8dd4e0,0xffff80003b8dc7f8 process=0xffff8000394c1218 user=0xffff8000318a8000, vmspace=0xfffff8006bdf1d00 estcpu=26, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 76553 133147 53924 0 2 0 syz-executor 76553 295116 53924 0 3 0x4000080 fsleep syz-executor 94585 72638 5030 0 2 0 syz-executor 94585 118274 5030 0 3 0x4000080 fsleep syz-executor 90841 311908 18995 0 2 0 syz-executor 90841 131035 18995 0 3 0x4000080 fsleep syz-executor 43422 222132 58345 0 2 0 syz-executor 43422 131984 58345 0 3 0x4000080 kqpoll syz-executor 43422 391262 58345 0 3 0x4000080 fsleep syz-executor 97375 116435 58758 0 2 0x1 syz-executor *97375 393271 58758 0 7 0x4000001 syz-executor 821 167216 1758 0 2 0 syz-executor 821 482790 1758 0 3 0x4000080 netcon syz-executor 50668 383709 1 0 3 0x80 nanoslp init 80400 280102 74174 0 2 0x2 syz-executor 58758 315390 74174 0 3 0x82 nanoslp syz-executor 1758 284981 74174 0 3 0x82 nanoslp syz-executor 18995 173765 74174 0 2 0xc82 syz-executor 58345 511506 74174 0 3 0x82 nanoslp syz-executor 5030 341588 74174 0 2 0xc82 syz-executor 53924 213081 74174 0 2 0xc82 syz-executor 76256 220143 74174 0 2 0x2 syz-executor 74174 363815 1 0 3 0x82 kqread syz-executor 97242 369354 0 0 3 0x14200 bored smr 23052 153776 0 0 2 0x14200 zerothread 18846 48732 0 0 3 0x14200 aiodoned aiodoned 88572 41450 0 0 3 0x14200 syncer update 45113 462795 0 0 3 0x14200 cleaner cleaner 37735 243208 0 0 3 0x14200 reaper reaper 77929 61584 0 0 3 0x14200 pgdaemon pagedaemon 33857 82065 0 0 3 0x14200 bored viomb 73690 156191 0 0 3 0x40014200 acpi0 acpi0 78045 269733 0 0 2 0x14200 softnet0 79365 120283 0 0 3 0x14200 bored systqmp 6744 220544 0 0 3 0x14200 bored systq 65496 336721 0 0 3 0x40014200 tmoslp softclock 24343 494135 0 0 3 0x40014200 idle0 1 128574 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 11060 12108K 12355K 166960K 12464 0 pcb 17 12K 12K 166960K 66 0 rtable 215 8K 8K 166960K 400 0 pf 34 13K 19K 166960K 56 0 ifaddr 40 6K 7K 166960K 54 0 ifgroup 54 2K 2K 166960K 68 0 sysctl 2 1K 9K 166960K 9 0 counters 34 17K 18K 166960K 42 0 ioctlops 0 0K 4K 166960K 155 0 iov 0 0K 8K 166960K 10 0 mount 1 1K 1K 166960K 1 0 log 1 0K 0K 166960K 5 0 vnodes 1371 86K 87K 166960K 1629 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 7 0K 0K 166960K 12 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 57K 109K 166960K 363 0 sigio 0 0K 0K 166960K 6 0 proc 11 17K 100K 166960K 527 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 31 0 in_multi 88 6K 7K 166960K 107 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 12 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 223 996K 996K 166960K 223 0 exec 0 0K 1K 166960K 383 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 113 77K 166K 166960K 4771 0 UVM aobj 8 2K 2K 166960K 8 0 pinsyscall 17 34K 92K 166960K 1461 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 5 0 NDP 12 0K 2K 166960K 32 0 temp 38 9106K 9170K 166960K 11486 0 kqueue 1 2K 28K 166960K 73 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 50 0 50 1 0 1 1 0 8 1 rtentry 136 117 0 27 4 0 4 4 0 8 0 unpcb 144 262 0 260 1 0 1 1 0 8 0 syncache 336 8 0 8 1 0 1 1 0 8 1 tcpcb 736 60 0 58 1 0 1 1 0 8 0 arp 96 18 0 2 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 328 284 0 282 2 0 2 2 0 8 1 nd6 112 24 0 3 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1072 6 0 6 1 0 1 1 0 8 1 pppxif 1416 2 0 2 1 0 1 1 0 8 1 pfstscr 40 3 0 2 1 0 1 1 0 8 0 pfosfp 40 1 0 0 1 0 1 1 0 8 0 pfosfpen 112 1 0 0 1 0 1 1 0 8 0 pfrktable 1344 1 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 1 1 0 1 1 0 8 1 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 1360 5 0 4 1 0 1 1 0 8 0 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 256 496 0 97 29 0 29 29 0 8 1 art_table 40 497 0 97 5 0 5 5 0 8 0 art_node 32 117 0 36 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 72 10 0 5 1 0 1 1 0 8 0 shmpl 112 5 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2005 0 546 92 0 92 92 0 8 0 ffsino 256 2005 0 546 92 0 92 92 0 8 0 nchpl 144 2519 0 828 64 0 64 64 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 vnodes 216 2260 0 0 126 0 126 126 0 8 0 namei 1024 8070 0 8069 2 0 2 2 0 8 1 kstatmem 264 33 0 8 2 0 2 2 0 8 0 scxspl 216 9089 0 9089 3 0 3 3 1 8 3 plimitpl 152 156 0 147 1 0 1 1 0 8 0 sigapl 424 654 0 623 6 0 6 6 0 8 1 knotepl 120 11113 0 11096 9 0 9 9 0 8 7 kqueuepl 184 94 0 92 1 0 1 1 0 8 0 pipepl 304 129 0 102 3 0 3 3 0 8 0 fdescpl 448 640 0 622 4 0 4 4 0 8 0 filepl 120 3152 0 2990 9 0 9 9 0 8 2 lockfpl 104 105 0 104 1 0 1 1 0 8 0 lockfspl 48 47 0 46 1 0 1 1 0 8 0 sessionpl 144 32 0 28 1 0 1 1 0 8 0 pgrppl 48 41 0 29 1 0 1 1 0 8 0 ucredpl 104 403 0 399 1 0 1 1 0 8 0 zombiepl 144 623 0 623 1 0 1 1 0 8 1 processpl 1152 654 0 623 4 0 4 4 0 8 0 procpl 664 988 0 950 5 0 5 5 0 8 1 sosppl 176 2 0 2 1 0 1 1 0 8 1 sockpl 552 610 0 606 3 0 3 3 0 8 2 mcl64k 65536 4 0 4 1 0 1 1 0 8 1 mcl9k128 9344 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 38 0 38 1 0 1 1 0 8 1 mcl4k 4096 2809 0 2756 14 0 14 14 0 8 7 mcl2k 2048 432 0 430 4 0 4 4 0 8 3 mtagpl 96 6 0 5 1 0 1 1 0 8 0 mbufpl 256 6588 0 6319 19 0 19 19 0 8 1 bufpl 272 3272 0 104 212 0 212 212 0 8 0 anonpl 24 119211 0 117840 44 0 44 44 0 88 23 amapchunkpl 152 14971 0 14670 28 0 28 28 0 158 13 amappl16 200 2379 0 2364 16 5 11 14 0 8 8 amappl15 192 6 0 6 1 0 1 1 0 8 1 amappl14 184 441 0 441 1 0 1 1 0 8 1 amappl13 176 115 0 115 1 0 1 1 0 8 1 amappl12 168 884 0 868 2 0 2 2 0 8 0 amappl11 160 6 0 6 1 0 1 1 0 8 1 amappl10 152 59 0 59 1 0 1 1 0 8 1 amappl9 144 288 0 287 1 0 1 1 0 8 0 amappl8 136 94 0 94 1 0 1 1 0 8 1 amappl7 128 141 0 139 1 0 1 1 0 8 0 amappl6 120 149 0 149 1 0 1 1 0 8 1 amappl5 112 92 0 91 1 0 1 1 0 8 0 amappl4 104 264 0 261 1 0 1 1 0 8 0 amappl3 96 2843 0 2779 3 0 3 3 0 8 0 amappl2 88 539 0 530 2 0 2 2 0 8 0 amappl1 80 10814 0 10726 13 0 13 13 0 8 6 amappl 88 4050 0 3948 4 0 4 4 0 92 0 uvmvnodes 80 104 0 0 3 0 3 3 0 8 0 dma16384 16384 1 0 1 1 0 1 1 0 8 1 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 7 0 0 1 0 1 1 0 8 0 uaddrrnd 24 640 0 622 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 640 0 622 1 0 1 1 0 8 0 vmmpekpl 168 6872 0 6841 2 0 2 2 0 8 0 vmmpepl 168 49054 0 48322 89 0 89 89 0 357 51 vmsppl 368 639 0 622 4 0 4 4 0 8 1 rwobjpl 40 16713 0 16353 12 0 12 12 0 8 0 pdppl 4096 1286 0 1244 96 50 46 76 0 8 4 pvpl 32 302343 0 298814 110 0 110 110 0 265 62 pmappl 216 639 0 622 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 582 0 50 16 0 16 16 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80003b8dcd18,ffffffffffffffff,0,80000510,fffff80075be02c0,fffff80007ffd8f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80003b8dcd18,ffffffffffffffff,0,80000510,fffff80075be02c0,fffff80007ffd8f0) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff80075be02c0,4,510,0,ffff80003b8dcd18) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff80075be02c0,4,510,0,ffff80003b8dcd18) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80003b8dcd18,ffff8000318adec0,ffff8000318ade10) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff8000318adec0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000318adec0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb23de3c73d0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80003b8dcd18,ffffffffffffffff,0,80000510,fffff80075be02c0,fffff80007ffd8f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80003b8dcd18,ffffffffffffffff,0,80000510,fffff80075be02c0,fffff80007ffd8f0) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff80075be02c0,4,510,0,ffff80003b8dcd18) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff80075be02c0,4,510,0,ffff80003b8dcd18) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80003b8dcd18,ffff8000318adec0,ffff8000318ade10) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff8000318adec0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000318adec0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb23de3c73d0, count: -5 ddb>