uvm_fault(0xfffffd8009427e60, 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 *408985 94419 0 0 0x4000000 0 syz-executor.3 ktrops(ffff80002a87bcb8,ffffffffffffffff,0,85d3cbf7,fffffd80661a5128,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a87bcb8,ffffffffffffffff,0,85d3cbf7,fffffd80661a5128,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80661a5128,4,85d3cbf7,0,ffff80002a87bcb8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80661a5128,4,85d3cbf7,0,ffff80002a87bcb8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a87bcb8,ffff80002aa01b20,ffff80002aa01a70) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002aa01b20) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002aa01b20) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb30982b6700, 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(0xfffffd8009427e60, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a87bcb8,ffffffffffffffff,0,85d3cbf7,fffffd80661a5128,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a87bcb8,ffffffffffffffff,0,85d3cbf7,fffffd80661a5128,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80661a5128,4,85d3cbf7,0,ffff80002a87bcb8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80661a5128,4,85d3cbf7,0,ffff80002a87bcb8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a87bcb8,ffff80002aa01b20,ffff80002aa01a70) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002aa01b20) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002aa01b20) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb30982b6700, count: -5 ddb> show registers rdi 0xffff80002a87bcb8 rsi 0xffffffffffffffff rbp 0xffff80002aa01840 rbx 0xfffffd8007bfb888 rdx 0 rcx 0x85d3cbf7 __kernel_virt_to_phys+0x5d3cbf7 rax 0x1 r8 0xfffffd80661a5128 r9 0xfffffd8007bfb888 r10 0x8734916ae6ef5054 r11 0xba6e0a143b21b287 r12 0xffff80002a87bcb8 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x85d3cbf7 __kernel_virt_to_phys+0x5d3cbf7 rip 0xffffffff828daa78 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002aa017c0 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor.3) tid=408985 pid=94419 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=80, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a813248,0xffff80002a87ba30 process=0xffff80002a854d98 user=0xffff80002a9fc000, vmspace=0xfffffd8009427e60 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 92117 166627 89192 0 2 0 syz-executor.2 92117 63172 89192 0 3 0x4000000 ffs_fsync syz-executor.2 31092 1693 62135 0 2 0 syz-executor.5 31092 136453 62135 0 2 0x4000000 syz-executor.5 94419 150229 38161 0 2 0 syz-executor.3 *94419 408985 38161 0 7 0x4000000 syz-executor.3 37849 204791 76705 0 3 0x10000082 nanoslp syz-executor.7 32891 443284 76705 0 2 0x2 syz-executor.0 14635 447466 76705 0 2 0x2 syz-executor.4 38161 32071 76705 0 3 0x82 nanoslp syz-executor.3 89192 423086 76705 0 3 0x82 nanoslp syz-executor.2 62135 265577 76705 0 3 0x82 nanoslp syz-executor.5 58585 191241 76705 0 2 0x2 syz-executor.1 85682 230712 76705 0 2 0x2 syz-executor.6 76705 258718 780 0 3 0x82 wait syz-execprog 76705 120098 780 0 3 0x4000082 thrsleep syz-execprog 76705 374208 780 0 3 0x4000082 kqread syz-execprog 76705 344971 780 0 3 0x4000082 thrsleep syz-execprog 76705 517005 780 0 3 0x4000082 wait syz-execprog 76705 186029 780 0 3 0x4000082 thrsleep syz-execprog 76705 339050 780 0 3 0x4000082 wait syz-execprog 76705 282890 780 0 3 0x4000082 wait syz-execprog 76705 277638 780 0 3 0x4000082 thrsleep syz-execprog 76705 15708 780 0 3 0x4000082 wait syz-execprog 76705 202518 780 0 3 0x4000082 thrsleep syz-execprog 76705 518941 780 0 3 0x4000082 wait syz-execprog 76705 340925 780 0 3 0x4000082 wait syz-execprog 76705 410832 780 0 3 0x4000082 wait syz-execprog 780 193779 52981 0 3 0x10008a sigsusp ksh 52981 278522 44624 0 3 0x98 kqread sshd-session 44624 310584 56299 0 3 0x92 kqread sshd-session 41760 15317 1 0 3 0x100083 ttyin getty 56299 77722 1 0 3 0x88 kqread sshd 42373 43772 54812 73 3 0x1100090 kqread syslogd 54812 84840 1 0 3 0x100082 sbwait syslogd 43890 153968 1 0 3 0x100080 kqread resolvd 21439 231453 68232 77 3 0x100092 kqread dhcpleased 5123 382897 68232 77 3 0x100092 kqread dhcpleased 68232 309728 1 0 3 0x80 kqread dhcpleased 78735 398078 0 0 3 0x14200 bored smr 96526 209312 0 0 2 0x14200 zerothread 77421 317730 0 0 3 0x14200 aiodoned aiodoned 78073 425379 0 0 3 0x14200 syncer update 74928 55334 0 0 3 0x14200 cleaner cleaner 88231 120793 0 0 3 0x14200 reaper reaper 24518 323702 0 0 3 0x14200 pgdaemon pagedaemon 4217 473585 0 0 3 0x14200 bored viomb 23801 142309 0 0 3 0x40014200 acpi0 acpi0 62264 475628 0 0 3 0x14200 bored softnet7 84244 307922 0 0 3 0x14200 bored softnet6 90625 84461 0 0 3 0x14200 bored softnet5 14260 100284 0 0 3 0x14200 bored softnet4 75355 122678 0 0 3 0x14200 bored softnet3 8050 294900 0 0 3 0x14200 bored softnet2 14088 150496 0 0 3 0x14200 bored softnet1 3388 32809 0 0 3 0x14200 bored softnet0 9886 158680 0 0 3 0x14200 bored systqmp 37483 319313 0 0 3 0x14200 bored systq 550 214374 0 0 3 0x40014200 tmoslp softclock 94758 373846 0 0 3 0x40014200 idle0 1 378527 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 10169 11040K 11053K 166960K 11345 0 pcb 17 12K 12K 166960K 17 0 rtable 205 5K 5K 166960K 851 0 pf 30 12K 12K 166960K 97 0 ifaddr 42 7K 7K 166960K 180 0 ifgroup 50 2K 2K 166960K 183 0 sysctl 1 1K 9K 166960K 5 0 counters 32 17K 17K 166960K 65 0 ioctlops 0 0K 2K 166960K 62 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1262 79K 80K 166960K 1278 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 13 45K 85K 166960K 1646 0 proc 57 58K 108K 166960K 1396 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 99 7K 7K 166960K 462 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 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 831 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 237 154K 208K 166960K 14726 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 35 70K 104K 166960K 3856 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 11 0K 2K 166960K 126 0 temp 1 8628K 8712K 166960K 56700 0 kqueue 13 20K 20K 166960K 45 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 120 102 0 99 1 0 1 1 0 8 0 rtentry 136 392 0 298 4 0 4 4 0 8 0 unpcb 144 67 0 52 1 0 1 1 0 8 0 syncache 336 9 0 9 1 0 1 1 0 8 1 tcpcb 736 11 0 8 1 0 1 1 0 8 0 arp 88 43 0 33 1 0 1 1 0 8 0 inpcb 328 191 0 185 2 0 2 2 0 8 1 nd6 104 82 0 66 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1832 0 1390 29 1 28 28 0 8 0 art_table 40 1833 0 1390 5 0 5 5 0 8 0 art_node 32 392 0 308 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3705 0 1978 108 0 108 108 0 8 0 ffsino 256 3705 0 1978 108 0 108 108 0 8 0 nchpl 144 6197 0 4441 67 0 67 67 0 8 1 uvmvnodes 80 3714 0 0 76 0 76 76 0 8 0 vnodes 216 3714 0 0 207 0 207 207 0 8 0 namei 1024 19985 0 19984 3 0 3 3 0 8 2 kstatmem 264 88 0 66 2 0 2 2 0 8 0 scxspl 216 100257 0 100256 8 0 8 8 1 8 7 plimitpl 152 90 0 74 1 0 1 1 0 8 0 sigapl 424 1925 0 1879 7 0 7 7 0 8 1 knotepl 120 7885 0 7806 4 0 4 4 0 8 1 kqueuepl 184 41 0 32 1 0 1 1 0 8 0 pipepl 304 302 0 274 3 0 3 3 0 8 0 fdescpl 448 1905 0 1880 4 0 4 4 0 8 0 filepl 120 4850 0 4711 5 0 5 5 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 66 0 50 1 0 1 1 0 8 0 pgrppl 48 66 0 50 1 0 1 1 0 8 0 ucredpl 104 148 0 137 1 0 1 1 0 8 0 zombiepl 144 1880 0 1879 1 0 1 1 0 8 0 processpl 1152 1925 0 1879 4 0 4 4 0 8 0 procpl 664 3148 0 3086 7 0 7 7 0 8 0 sockpl 552 360 0 336 3 0 3 3 0 8 1 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 8963 0 8905 16 0 16 16 0 8 8 mcl2k 2048 778 0 778 1 0 1 1 0 8 1 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 14241 0 14064 13 0 13 13 0 8 1 bufpl 280 82531 0 72595 710 0 710 710 0 8 0 anonpl 24 534590 0 529416 53 0 53 53 0 187 15 amapchunkpl 152 46033 0 45508 27 0 27 27 0 158 2 amappl16 200 19897 0 19756 11 0 11 11 0 8 2 amappl15 192 13 0 12 1 0 1 1 0 8 0 amappl14 184 377 0 363 2 0 2 2 0 8 0 amappl13 176 15 0 14 1 0 1 1 0 8 0 amappl12 168 3067 0 3039 2 0 2 2 0 8 0 amappl11 160 48 0 38 1 0 1 1 0 8 0 amappl10 152 104 0 94 1 0 1 1 0 8 0 amappl9 144 969 0 969 1 0 1 1 0 8 1 amappl8 136 264 0 236 2 0 2 2 0 8 0 amappl7 128 285 0 263 2 0 2 2 0 8 0 amappl6 120 637 0 633 1 0 1 1 0 8 0 amappl5 112 297 0 291 1 0 1 1 0 8 0 amappl4 104 630 0 612 2 0 2 2 0 8 1 amappl3 96 7958 0 7890 3 0 3 3 0 8 0 amappl2 88 2716 0 2646 4 0 4 4 0 8 1 amappl1 80 24033 0 23468 27 7 20 23 0 8 7 amappl 88 13104 0 12958 5 0 5 5 0 92 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1905 0 1880 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1905 0 1880 1 0 1 1 0 8 0 vmmpekpl 168 17741 0 17692 3 0 3 3 0 8 0 vmmpepl 168 151837 0 150018 123 0 123 123 0 357 33 vmsppl 368 1904 0 1880 4 0 4 4 0 8 1 rwobjpl 40 58238 0 53534 49 0 49 49 0 8 0 pdppl 4096 3816 0 3760 194 128 66 76 0 8 10 pvpl 32 1073473 0 1063000 396 102 294 396 0 265 199 pmappl 216 1904 0 1880 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 490 0 129 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a87bcb8,ffffffffffffffff,0,85d3cbf7,fffffd80661a5128,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a87bcb8,ffffffffffffffff,0,85d3cbf7,fffffd80661a5128,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80661a5128,4,85d3cbf7,0,ffff80002a87bcb8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80661a5128,4,85d3cbf7,0,ffff80002a87bcb8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a87bcb8,ffff80002aa01b20,ffff80002aa01a70) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002aa01b20) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002aa01b20) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb30982b6700, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a87bcb8,ffffffffffffffff,0,85d3cbf7,fffffd80661a5128,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a87bcb8,ffffffffffffffff,0,85d3cbf7,fffffd80661a5128,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd80661a5128,4,85d3cbf7,0,ffff80002a87bcb8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd80661a5128,4,85d3cbf7,0,ffff80002a87bcb8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a87bcb8,ffff80002aa01b20,ffff80002aa01a70) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002aa01b20) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002aa01b20) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb30982b6700, count: -5