uvm_fault(0xfffffd806b966e78, 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 * 43808 44473 0 0 0x4000000 0 syz-executor ktrops(ffff80002a811240,ffffffffffffffff,0,80000618,fffffd805fa618b0,fffffd8007bfb750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a811240,ffffffffffffffff,0,80000618,fffffd805fa618b0,fffffd8007bfb750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805fa618b0,4,618,0,ffff80002a811240) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805fa618b0,4,618,0,ffff80002a811240) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a811240,ffff80003c9c7130,ffff80003c9c7080) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9c7130) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9c7130) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbaa75e82d10, 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(0xfffffd806b966e78, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a811240,ffffffffffffffff,0,80000618,fffffd805fa618b0,fffffd8007bfb750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a811240,ffffffffffffffff,0,80000618,fffffd805fa618b0,fffffd8007bfb750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805fa618b0,4,618,0,ffff80002a811240) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805fa618b0,4,618,0,ffff80002a811240) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a811240,ffff80003c9c7130,ffff80003c9c7080) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9c7130) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9c7130) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbaa75e82d10, count: -5 ddb> show registers rdi 0xffff800035d4a000 rsi 0xa8b rbp 0xffff80003c9c6e50 rbx 0xfffffd8007bfb750 rdx 0xffff800035d4a000 rcx 0xa8a rax 0xffffffff826a6e33 ktrops+0x43 r8 0xfffffd805fa618b0 r9 0xfffffd8007bfb750 r10 0x666c9de9471a5965 r11 0x43e5e2d5fb3d25cc r12 0xffff80002a811240 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000618 __kernel_virt_to_phys+0x618 rip 0xffffffff826a6e48 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c9c6dd0 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=43808 pid=44473 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=52, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7d8550,0xffff80002a8107f0 process=0xffff80002f12edc8 user=0xffff80003c9c2000, vmspace=0xfffffd806b966e78 estcpu=2, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 51351 361133 52721 0 2 0 syz-executor 79983 422104 91272 0 2 0 syz-executor 79983 238665 91272 0 2 0x4000000 syz-executor 18296 165868 66588 0 2 0 syz-executor 18296 17686 66588 0 2 0x4000000 syz-executor 28226 524042 0 0 3 0x14280 nfsidl nfsio 34377 115017 0 0 3 0x14280 nfsidl nfsio 40411 302650 0 0 3 0x14280 nfsidl nfsio 32301 5445 0 0 3 0x14280 nfsidl nfsio 51363 50357 0 0 3 0x14280 nfsidl nfsio 63145 291467 0 0 3 0x14280 nfsidl nfsio 14107 131374 0 0 3 0x14280 nfsidl nfsio 95811 347933 0 0 3 0x14280 nfsidl nfsio 59527 307768 0 0 3 0x14280 nfsidl nfsio 63345 156644 0 0 3 0x14280 nfsidl nfsio 38250 473040 0 0 3 0x14280 nfsidl nfsio 3034 343363 0 0 3 0x14280 nfsidl nfsio 58318 303059 0 0 3 0x14280 nfsidl nfsio 58391 78400 0 0 3 0x14280 nfsidl nfsio 19100 217846 0 0 3 0x14280 nfsidl nfsio 78633 237951 0 0 3 0x14280 nfsidl nfsio 29049 10004 0 0 3 0x14280 nfsidl nfsio 16311 193205 0 0 3 0x14280 nfsidl nfsio 16072 213712 0 0 3 0x14280 nfsidl nfsio 96150 127459 0 0 3 0x14280 nfsidl nfsio 44473 86513 1469 0 2 0 syz-executor *44473 43808 1469 0 7 0x4000000 syz-executor 65571 391800 18818 0 2 0xc80 syz-executor 65571 33311 18818 0 3 0x4000080 sbwait syz-executor 65571 382554 18818 0 3 0x4000080 fsleep syz-executor 65571 273768 18818 0 3 0x4000080 fsleep syz-executor 65571 131927 18818 0 3 0x4000080 fsleep syz-executor 39194 147770 0 0 3 0x14200 acct acct 1802 393589 0 0 3 0x14200 bored sosplice 87417 439341 1 0 3 0x100083 ttyin getty 18818 413908 34357 0 3 0x82 nanoslp syz-executor 29295 192660 34357 0 2 0x2 syz-executor 1469 500966 34357 0 2 0xc82 syz-executor 71358 244562 34357 0 2 0x2 syz-executor 2858 97425 34357 0 2 0x2 syz-executor 52721 261276 34357 0 3 0x82 nanoslp syz-executor 91272 208814 34357 0 3 0x82 nanoslp syz-executor 66588 483370 34357 0 3 0x82 nanoslp syz-executor 34357 185249 11397 0 3 0x82 kqread syz-executor 11397 60817 51734 0 3 0x10008a sigsusp ksh 51734 301492 46208 0 3 0x98 kqread sshd-session 46208 397359 83215 0 3 0x92 kqread sshd-session 83215 158885 1 0 3 0x88 kqread sshd 55551 519449 40022 73 3 0x1100090 kqread syslogd 40022 9701 1 0 3 0x100082 sbwait syslogd 95707 293552 1 0 3 0x100080 kqread resolvd 68323 287098 31316 77 3 0x100092 kqread dhcpleased 50884 351819 31316 77 3 0x100092 kqread dhcpleased 31316 240210 1 0 3 0x80 kqread dhcpleased 82410 17750 0 0 3 0x14200 bored smr 95091 214776 0 0 2 0x14200 zerothread 84328 208251 0 0 3 0x14200 aiodoned aiodoned 77178 38957 0 0 3 0x14200 syncer update 59766 404863 0 0 3 0x14200 cleaner cleaner 72608 373309 0 0 3 0x14200 reaper reaper 32610 401643 0 0 3 0x14200 pgdaemon pagedaemon 31231 298989 0 0 3 0x14200 bored viomb 57314 56557 0 0 3 0x40014200 acpi0 acpi0 22259 203457 0 0 3 0x14200 bored softnet7 57711 451033 0 0 3 0x14200 bored softnet6 57164 50238 0 0 3 0x14200 bored softnet5 76670 133057 0 0 3 0x14200 bored softnet4 13158 316880 0 0 3 0x14200 bored softnet3 64504 122196 0 0 3 0x14200 bored softnet2 26648 419323 0 0 3 0x14200 bored softnet1 53284 143454 0 0 2 0x14200 softnet0 83002 485772 0 0 3 0x14200 bored systqmp 18293 483137 0 0 3 0x14200 bored systq 62819 512414 0 0 3 0x40014200 tmoslp softclock 36594 360735 0 0 3 0x40014200 idle0 1 72851 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 10184 11059K 11301K 166960K 11465 0 pcb 17 14K 15K 166960K 59 0 rtable 202 7K 7K 166960K 279 0 pf 28 12K 14K 166960K 44 0 ifaddr 39 7K 7K 166960K 53 0 ifgroup 46 2K 2K 166960K 63 0 sysctl 3 1K 9K 166960K 7 0 counters 31 17K 18K 166960K 45 0 ioctlops 0 0K 4K 166960K 57 0 iov 0 0K 28K 166960K 4 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1408 89K 89K 166960K 1543 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 5 0K 1K 166960K 7 0 dirhash 15 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 110K 166960K 272 0 sigio 0 0K 0K 166960K 35 0 proc 59 59K 116K 166960K 511 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 7 0 in_multi 88 6K 7K 166960K 100 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 357 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 202 150K 160K 166960K 3989 0 UVM aobj 11 2K 2K 166960K 11 0 pinsyscall 36 72K 95K 166960K 1306 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 8 0 NDP 10 0K 2K 166960K 32 0 temp 39 8631K 8703K 166960K 8998 0 kqueue 13 20K 24K 166960K 44 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 47 0 44 1 0 1 1 0 8 0 rtentry 136 101 0 12 4 0 4 4 0 8 0 unpcb 144 100 0 82 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 107 0 102 7 0 7 7 0 8 5 arp 88 12 0 1 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 3 0 1 1 0 1 1 0 8 0 inpcb 328 310 0 302 10 0 10 10 0 8 8 ip6q 72 1 0 0 1 0 1 1 0 8 0 ip6af 40 1 0 0 1 0 1 1 0 8 0 nd6 104 17 0 3 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 12 0 12 1 0 1 1 0 8 1 pppxif 1384 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 256 462 0 63 29 0 29 29 0 8 1 art_table 40 463 0 63 5 0 5 5 0 8 0 art_node 32 101 0 22 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 112 4 0 1 1 0 1 1 0 8 0 shmpl 112 8 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 0 3 0 3 3 0 8 0 dino2pl 256 1815 0 313 95 0 95 95 0 8 0 ffsino 256 1815 0 313 95 0 95 95 0 8 0 nchpl 144 2181 0 501 63 0 63 63 0 8 0 rtmask 32 5 0 5 1 0 1 1 0 8 1 uvmvnodes 80 2026 0 0 42 0 42 42 0 8 0 vnodes 216 2026 0 0 113 0 113 113 0 8 0 namei 1024 6906 0 6902 2 0 2 2 0 8 1 kstatmem 264 32 0 12 2 0 2 2 0 8 0 scxspl 216 7477 0 7477 8 0 8 8 1 8 8 plimitpl 152 57 0 40 1 0 1 1 0 8 0 sigapl 424 573 0 504 9 0 9 9 0 8 0 knotepl 120 10999 0 10952 10 0 10 10 0 8 8 kqueuepl 184 60 0 51 1 0 1 1 0 8 0 pipepl 304 113 0 86 3 0 3 3 0 8 0 fdescpl 448 531 0 504 5 0 5 5 0 8 1 filepl 120 2576 0 2360 10 0 10 10 0 8 1 lockfpl 104 263 0 261 2 0 2 2 0 8 1 lockfspl 48 31 0 29 1 0 1 1 0 8 0 sessionpl 144 23 0 15 1 0 1 1 0 8 0 pgrppl 48 32 0 16 1 0 1 1 0 8 0 ucredpl 104 211 0 199 1 0 1 1 0 8 0 zombiepl 144 504 0 504 1 0 1 1 0 8 1 processpl 1168 573 0 504 6 0 6 6 0 8 0 procpl 664 784 0 708 8 0 8 8 0 8 1 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 552 462 0 433 10 0 10 10 0 8 6 mcl64k 65536 5 0 5 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 5 0 5 1 0 1 1 0 8 1 mcl4k 4096 2618 0 2566 14 0 14 14 0 8 7 mcl2k 2048 464 0 461 4 0 4 4 0 8 3 mtagpl 96 8 0 4 1 0 1 1 0 8 0 mbufpl 256 5598 0 5444 14 0 14 14 0 8 1 bufpl 280 3121 0 118 215 0 215 215 0 8 0 anonpl 24 74200 0 71259 26 0 26 26 0 187 4 amapchunkpl 152 11195 0 10795 24 0 24 24 0 158 4 amappl16 200 597 0 570 4 0 4 4 0 8 0 amappl15 192 3 0 3 1 0 1 1 0 8 1 amappl14 184 103 0 93 1 0 1 1 0 8 0 amappl13 176 4 0 4 1 0 1 1 0 8 1 amappl12 168 1142 0 1115 3 0 3 3 0 8 1 amappl11 160 42 0 32 1 0 1 1 0 8 0 amappl10 152 2 0 2 1 0 1 1 0 8 1 amappl9 144 255 0 255 1 0 1 1 0 8 1 amappl8 136 19 0 18 1 0 1 1 0 8 0 amappl7 128 97 0 87 1 0 1 1 0 8 0 amappl6 120 176 0 173 1 0 1 1 0 8 0 amappl5 112 110 0 104 1 0 1 1 0 8 0 amappl4 104 268 0 253 1 0 1 1 0 8 0 amappl3 96 2053 0 1962 4 0 4 4 0 8 1 amappl2 88 614 0 557 2 0 2 2 0 8 0 amappl1 80 8636 0 8099 13 0 13 13 0 8 0 amappl 88 3320 0 3180 5 0 5 5 0 92 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 10 0 0 1 0 1 1 0 8 0 uaddrrnd 24 531 0 504 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 531 0 504 1 0 1 1 0 8 0 vmmpekpl 168 5841 0 5815 2 0 2 2 0 8 0 vmmpepl 168 38649 0 36937 89 0 89 89 0 357 6 vmsppl 368 530 0 504 4 0 4 4 0 8 1 rwobjpl 40 14141 0 11295 30 0 30 30 0 8 0 pdppl 4096 1068 0 1008 98 30 68 82 0 8 8 pvpl 32 217196 0 209301 89 0 89 89 0 265 11 pmappl 216 530 0 504 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 384 0 30 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a811240,ffffffffffffffff,0,80000618,fffffd805fa618b0,fffffd8007bfb750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a811240,ffffffffffffffff,0,80000618,fffffd805fa618b0,fffffd8007bfb750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805fa618b0,4,618,0,ffff80002a811240) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805fa618b0,4,618,0,ffff80002a811240) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a811240,ffff80003c9c7130,ffff80003c9c7080) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9c7130) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9c7130) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbaa75e82d10, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a811240,ffffffffffffffff,0,80000618,fffffd805fa618b0,fffffd8007bfb750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a811240,ffffffffffffffff,0,80000618,fffffd805fa618b0,fffffd8007bfb750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805fa618b0,4,618,0,ffff80002a811240) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805fa618b0,4,618,0,ffff80002a811240) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a811240,ffff80003c9c7130,ffff80003c9c7080) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9c7130) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9c7130) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbaa75e82d10, count: -5