uvm_fault(0xfffffd806c0a25b0, 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 *367265 53377 0 0 0x4000000 0 syz-executor ktrops(ffff80003390cf88,ffffffffffffffff,0,c0000530,fffffd806fc76110,fffffd807f7d72d8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003390cf88,ffffffffffffffff,0,c0000530,fffffd806fc76110,fffffd807f7d72d8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806fc76110,4,40000530,0,ffff80003390cf88) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806fc76110,4,40000530,0,ffff80003390cf88) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003390cf88,ffff800036519070,ffff800036518fc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800036519070) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800036519070) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x640cd25a050, 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(0xfffffd806c0a25b0, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80003390cf88,ffffffffffffffff,0,c0000530,fffffd806fc76110,fffffd807f7d72d8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003390cf88,ffffffffffffffff,0,c0000530,fffffd806fc76110,fffffd807f7d72d8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806fc76110,4,40000530,0,ffff80003390cf88) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806fc76110,4,40000530,0,ffff80003390cf88) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003390cf88,ffff800036519070,ffff800036518fc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800036519070) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800036519070) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x640cd25a050, count: -5 ddb> show registers rdi 0xffff80003711a000 rsi 0x64f rbp 0xffff800036518d90 rbx 0xfffffd807f7d72d8 rdx 0xffff80003711a000 rcx 0x64e rax 0xffffffff8283b1c3 ktrops+0x43 r8 0xfffffd806fc76110 r9 0xfffffd807f7d72d8 r10 0xf3186d0efa6588a r11 0xc61e62ffd77620c1 r12 0xffff80003390cf88 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xc0000530 rip 0xffffffff8283b1d8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800036518d10 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=367265 pid=53377 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003390d738,0xffffffff838fffc8 process=0xffff8000ffff8470 user=0xffff800036514000, vmspace=0xfffffd806c0a25b0 estcpu=24, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 53377 270394 73828 0 2 0 syz-executor *53377 367265 73828 0 7 0x4000000 syz-executor 57629 34778 91069 0 2 0 syz-executor 57629 256083 91069 0 3 0x4000080 fsleep syz-executor 27493 477807 62841 0 2 0 syz-executor 27493 37061 62841 0 3 0x4000080 ttyout syz-executor 47396 161349 54022 0 2 0 syz-executor 47396 314271 54022 0 3 0x4000080 kqread syz-executor 47396 142363 54022 0 3 0x4000080 fsleep syz-executor 47396 157200 54022 0 3 0x4000080 fsleep syz-executor 9984 232348 0 0 3 0x14200 bored sosplice 54022 331398 25756 0 2 0x482 syz-executor 73828 181625 25756 0 3 0x82 nanoslp syz-executor 43780 467132 25756 0 2 0x2 syz-executor 62841 402237 25756 0 2 0x482 syz-executor 92192 85822 25756 0 3 0x82 nanoslp syz-executor 82370 406154 25756 0 2 0x2 syz-executor 91069 86487 25756 0 2 0x482 syz-executor 97381 180210 25756 0 2 0x2 syz-executor 25756 227838 50715 0 3 0x82 kqread syz-executor 50715 484311 99009 0 3 0x10008a sigsusp ksh 99009 384384 40072 0 3 0x98 kqread sshd-session 40072 223159 59239 0 3 0x92 kqread sshd-session 91087 120669 1 0 3 0x100083 ttyin getty 59239 294502 1 0 3 0x88 kqread sshd 76904 4945 17853 73 3 0x1100090 kqread syslogd 17853 493591 1 0 3 0x100082 sbwait syslogd 79497 432956 1 0 3 0x100080 kqread resolvd 4149 95005 22264 77 3 0x100092 kqread dhcpleased 17602 422335 22264 77 3 0x100092 kqread dhcpleased 22264 65538 1 0 3 0x80 kqread dhcpleased 47850 299707 0 0 3 0x14200 bored smr 80223 263557 0 0 2 0x14200 zerothread 60423 147422 0 0 3 0x14200 aiodoned aiodoned 11423 160791 0 0 3 0x14200 syncer update 31025 145501 0 0 3 0x14200 cleaner cleaner 41280 68186 0 0 3 0x14200 reaper reaper 51110 431679 0 0 3 0x14200 pgdaemon pagedaemon 39144 309371 0 0 3 0x14200 bored viomb 87101 182179 0 0 3 0x40014200 acpi0 acpi0 49219 86067 0 0 3 0x14200 bored softnet3 73947 6387 0 0 3 0x14200 bored softnet2 88612 363837 0 0 3 0x14200 bored softnet1 15599 307574 0 0 3 0x14200 bored softnet0 78837 262749 0 0 3 0x14200 bored systqmp 39365 247644 0 0 3 0x14200 bored systq 73748 281614 0 0 3 0x40014200 tmoslp softclock 40497 273322 0 0 3 0x40014200 idle0 1 141761 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 10199 11235K 11238K 166960K 11354 0 pcb 17 12K 12K 166960K 32 0 rtable 220 8K 8K 166960K 366 0 pf 29 12K 16K 166960K 38 0 ifaddr 38 6K 7K 166960K 46 0 ifgroup 46 2K 2K 166960K 55 0 sysctl 3 1K 1K 166960K 3 0 counters 29 17K 17K 166960K 33 0 ioctlops 0 0K 4K 166960K 41 0 iov 0 0K 12K 166960K 4 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1336 84K 85K 166960K 1405 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 3 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 97K 166960K 202 0 sigio 0 0K 0K 166960K 6 0 proc 60 59K 124K 166960K 482 0 subproc 72 4K 4K 166960K 73 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 15 0 in_multi 88 6K 7K 166960K 101 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 139 625K 625K 166960K 139 0 exec 0 0K 1K 166960K 418 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 208 150K 163K 166960K 3401 0 UVM aobj 3 2K 2K 166960K 4 0 pinsyscall 36 72K 96K 166960K 1234 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 6 0 NDP 10 0K 2K 166960K 28 0 temp 35 8670K 8734K 166960K 4705 0 kqueue 15 24K 28K 166960K 40 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 40 0 37 1 0 1 1 0 8 0 rtentry 136 112 0 13 4 0 4 4 0 8 0 unpcb 144 54 0 39 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 808 22 0 18 1 0 1 1 0 8 0 arp 88 18 0 2 1 0 1 1 0 8 0 inpcb 344 107 0 99 2 0 2 2 0 8 1 nd6 104 24 0 3 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 2 0 2 1 0 1 1 0 8 1 pppxif 1384 2 0 2 1 0 1 1 0 8 1 pfrktable 1344 4 0 1 1 0 1 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfrule 1344 1 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 458 0 50 29 0 29 29 0 8 2 art_table 32 459 0 50 4 0 4 4 0 8 0 art_node 16 111 0 21 1 0 1 1 0 8 0 semapl 112 1 0 0 1 0 1 1 0 8 0 shmpl 112 1 0 1 1 0 1 1 0 8 1 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 1668 0 171 95 0 95 95 0 8 0 ffsino 248 1668 0 171 95 0 95 95 0 8 0 nchpl 144 1954 0 275 63 0 63 63 0 8 0 uvmvnodes 80 1780 0 0 37 0 37 37 0 8 0 vnodes 216 1780 0 0 99 0 99 99 0 8 0 namei 1024 6286 0 6284 2 0 2 2 0 8 1 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 24 0 4 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 6212 0 6212 3 0 3 3 1 8 3 plimitpl 152 39 0 23 1 0 1 1 0 8 0 sigapl 424 483 0 439 7 0 7 7 0 8 1 futexpl 64 1161 0 1158 1 0 1 1 0 8 0 knotepl 120 5621 0 5568 10 0 10 10 0 8 8 kqueuepl 184 111 0 100 1 0 1 1 0 8 0 pipepl 296 104 0 77 3 0 3 3 0 8 0 fdescpl 440 466 0 439 5 0 5 5 0 8 1 filepl 120 1915 0 1702 8 0 8 8 0 8 1 lockfpl 104 19 0 16 1 0 1 1 0 8 0 lockfspl 48 11 0 8 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 104 202 0 191 1 0 1 1 0 8 0 zombiepl 144 440 0 439 1 0 1 1 0 8 0 processpl 1112 483 0 439 4 0 4 4 0 8 0 procpl 656 587 0 537 6 0 6 6 0 8 0 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 528 201 0 175 3 0 3 3 0 8 1 mcl8k 8192 5 0 5 1 0 1 1 0 8 1 mcl4k 4096 2512 0 2461 14 0 14 14 0 8 7 mcl2k 2048 255 0 253 1 0 1 1 0 8 0 mtagpl 96 11 0 4 1 0 1 1 0 8 0 mbufpl 256 4912 0 4772 11 0 11 11 0 8 0 bufpl 280 2403 0 117 164 0 164 164 0 8 0 anonpl 24 90000 0 87080 31 0 31 31 0 187 9 amapchunkpl 152 9663 0 9244 22 0 22 22 0 158 2 amappl16 200 1418 0 1396 4 0 4 4 0 8 2 amappl15 192 5 0 5 1 0 1 1 0 8 1 amappl14 184 102 0 92 1 0 1 1 0 8 0 amappl13 176 2 0 2 1 0 1 1 0 8 1 amappl12 168 1074 0 1047 3 0 3 3 0 8 1 amappl11 160 46 0 35 1 0 1 1 0 8 0 amappl10 152 42 0 42 1 0 1 1 0 8 1 amappl9 144 272 0 272 1 0 1 1 0 8 1 amappl8 136 20 0 19 1 0 1 1 0 8 0 amappl7 128 100 0 89 1 0 1 1 0 8 0 amappl6 120 171 0 168 1 0 1 1 0 8 0 amappl5 112 111 0 105 1 0 1 1 0 8 0 amappl4 104 285 0 269 1 0 1 1 0 8 0 amappl3 96 1618 0 1523 3 0 3 3 0 8 0 amappl2 88 622 0 568 2 0 2 2 0 8 0 amappl1 80 8106 0 7567 14 0 14 14 0 8 2 amappl 88 2751 0 2606 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 3 0 1 1 0 1 1 0 8 0 uaddrrnd 24 466 0 439 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 466 0 439 1 0 1 1 0 8 0 vmmpekpl 168 5216 0 5183 2 0 2 2 0 8 0 vmmpepl 168 35502 0 33788 83 0 83 83 0 357 2 vmsppl 360 465 0 439 4 0 4 4 0 8 1 rwobjpl 32 13851 0 11258 22 0 22 22 0 8 0 pdppl 4096 938 0 878 98 32 66 82 0 8 6 pvpl 32 217979 0 210220 85 0 85 85 0 265 14 pmappl 216 465 0 439 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 260 0 32 7 0 7 7 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80003390cf88,ffffffffffffffff,0,c0000530,fffffd806fc76110,fffffd807f7d72d8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003390cf88,ffffffffffffffff,0,c0000530,fffffd806fc76110,fffffd807f7d72d8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806fc76110,4,40000530,0,ffff80003390cf88) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806fc76110,4,40000530,0,ffff80003390cf88) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003390cf88,ffff800036519070,ffff800036518fc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800036519070) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800036519070) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x640cd25a050, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80003390cf88,ffffffffffffffff,0,c0000530,fffffd806fc76110,fffffd807f7d72d8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003390cf88,ffffffffffffffff,0,c0000530,fffffd806fc76110,fffffd807f7d72d8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806fc76110,4,40000530,0,ffff80003390cf88) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806fc76110,4,40000530,0,ffff80003390cf88) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003390cf88,ffff800036519070,ffff800036518fc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800036519070) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800036519070) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x640cd25a050, count: -5