login: uvm_fault(0xffffef807b77d738, 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 * 87914 58150 0 0 0x4000000 0 syz-executor ktrops(ffff80002a760d08,ffffffffffffffff,0,a0c7fd9f,ffffef806a29f8d0,ffffef8007ffd618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a760d08,ffffffffffffffff,0,a0c7fd9f,ffffef806a29f8d0,ffffef8007ffd618) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(ffffef806a29f8d0,4,20c7fd9f,0,ffff80002a760d08) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(ffffef806a29f8d0,4,20c7fd9f,0,ffff80002a760d08) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002a760d08,ffff80002a7b7870,ffff80002a7b77c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a7b7870) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a7b7870) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd95eb0fde20, 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(0xffffef807b77d738, 0xf, 0, 1) -> e ddb> show kasan No such command ddb> trace ktrops(ffff80002a760d08,ffffffffffffffff,0,a0c7fd9f,ffffef806a29f8d0,ffffef8007ffd618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a760d08,ffffffffffffffff,0,a0c7fd9f,ffffef806a29f8d0,ffffef8007ffd618) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(ffffef806a29f8d0,4,20c7fd9f,0,ffff80002a760d08) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(ffffef806a29f8d0,4,20c7fd9f,0,ffff80002a760d08) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002a760d08,ffff80002a7b7870,ffff80002a7b77c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a7b7870) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a7b7870) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd95eb0fde20, count: -5 ddb> show registers rdi 0xffff800035cca000 rsi 0xce40 __ALIGN_SIZE+0xbe40 rbp 0xffff80002a7b7590 rbx 0xffffef8007ffd618 rdx 0xffff800035cca000 rcx 0xce3f __ALIGN_SIZE+0xbe3f rax 0xffffffff82db3283 ktrops+0x43 r8 0xffffef806a29f8d0 r9 0xffffef8007ffd618 r10 0x19174495482ccbb6 r11 0x81d0ceb208498e29 r12 0xffff80002a760d08 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7fd9f rip 0xffffffff82db3298 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a7b7510 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=87914 pid=58150 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=73, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a75cd10,0xffff80002a7614e0 process=0xffff80002a8304a8 user=0xffff80002a7b2000, vmspace=0xffffef807b77d738 estcpu=23, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 38174 218848 43004 0 3 0x2 0 clonelk ifconfig 43004 178462 14564 0 3 0x100002 0x88 sigsusp sh 75388 89690 1 0 3 0x2 0x80 nanoslp getty 16783 207121 84897 0 2 0 0 syz-executor 16783 482421 84897 0 3 0 0x4000080 fsleep syz-executor 58150 491872 61446 0 2 0 0 syz-executor *58150 87914 61446 0 7 0 0x4000000 syz-executor 56854 433655 75675 0 2 0 0 syz-executor 56854 387146 75675 0 3 0 0x4000080 bell syz-executor 56854 357800 75675 0 3 0 0x4000080 rest syz-executor 14564 344395 97471 0 3 0x2 0x80 wait syz-executor 75675 377054 97471 0 3 0x2 0x80 nanoslp syz-executor 56434 416979 97471 0 2 0x2 0xc80 syz-executor 64730 304625 0 0 3 0x14000 0x280 nfsidl nfsio 54039 313200 0 0 3 0x14000 0x280 nfsidl nfsio 99394 364218 0 0 3 0x14000 0x280 nfsidl nfsio 95315 367292 0 0 3 0x14000 0x280 nfsidl nfsio 45415 399458 0 0 3 0x14000 0x280 nfsidl nfsio 5917 273121 0 0 3 0x14000 0x280 nfsidl nfsio 75737 65661 0 0 3 0x14000 0x280 nfsidl nfsio 5972 479813 0 0 3 0x14000 0x280 nfsidl nfsio 61151 177707 0 0 3 0x14000 0x280 nfsidl nfsio 874 132106 0 0 3 0x14000 0x280 nfsidl nfsio 94818 114301 0 0 3 0x14000 0x280 nfsidl nfsio 95298 251840 0 0 3 0x14000 0x280 nfsidl nfsio 65864 308842 0 0 3 0x14000 0x280 nfsidl nfsio 37440 405718 0 0 3 0x14000 0x280 nfsidl nfsio 21687 9746 0 0 3 0x14000 0x280 nfsidl nfsio 56880 473719 0 0 3 0x14000 0x280 nfsidl nfsio 57179 74576 0 0 3 0x14000 0x280 nfsidl nfsio 29577 497130 0 0 3 0x14000 0x280 nfsidl nfsio 81586 456277 0 0 3 0x14000 0x280 nfsidl nfsio 49335 125054 0 0 3 0x14000 0x280 nfsidl nfsio 249 294879 97471 0 3 0x2 0 biowait syz-executor 84897 130393 97471 0 3 0x2 0x80 nanoslp syz-executor 61446 308727 97471 0 3 0x2 0x80 nanoslp syz-executor 97471 138721 1 0 3 0x2 0x80 nanoslp syz-executor 13292 368063 1 0 2 0x100800 0x2000 resolvd 1477 280918 0 0 3 0x14000 0x200 bored smr 14349 200951 0 0 2 0x14000 0x200 zerothread 35996 335068 0 0 3 0x14000 0x200 aiodoned aiodoned 58776 197736 0 0 3 0x14000 0x200 syncer update 81136 144563 0 0 3 0x14000 0x200 cleaner cleaner 25778 422146 0 0 3 0x14000 0x200 reaper reaper 19444 349330 0 0 3 0x14000 0x200 pgdaemon pagedaemon 92052 270485 0 0 3 0x14000 0x200 bored viomb 71535 401799 0 0 3 0x14000 0x40000200 acpi0 acpi0 45604 1563 0 0 3 0x14000 0x200 bored softnet0 53695 434586 0 0 3 0x14000 0x200 bored systqmp 66354 206230 0 0 3 0x14000 0x200 bored systq 25155 228136 0 0 3 0x14000 0x40000200 tmoslp softclock 92664 500953 0 0 3 0x14000 0x40000200 idle0 1 31922 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11032 12097K 12234K 166960K 12311 0 pcb 17 14K 16K 166960K 128 0 rtable 165 5K 11K 166960K 1015 0 pf 32 13K 18K 166960K 111 0 ifaddr 33 5K 7K 166960K 133 0 ifgroup 50 2K 2K 166960K 143 0 sysctl 1 1K 9K 166960K 5 0 counters 33 17K 18K 166960K 57 0 ioctlops 0 0K 4K 166960K 145 0 iov 0 0K 12K 166960K 9 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1295 81K 82K 166960K 1739 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 16 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 14 53K 97K 166960K 621 0 sigio 0 0K 0K 166960K 4 0 proc 34 42K 116K 166960K 1102 0 subproc 63 3K 4K 166960K 261 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 13 0 in_multi 64 4K 6K 166960K 324 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 9 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 2K 166960K 639 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 116 83K 175K 166960K 6391 0 UVM aobj 10 2K 2K 166960K 12 0 pinsyscall 19 38K 96K 166960K 2253 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 11 0K 2K 166960K 90 0 temp 31 9110K 9129K 166960K 17081 0 kqueue 5 6K 29K 166960K 66 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 120 279 0 278 3 0 3 3 0 8 2 rtentry 136 333 0 266 4 0 4 4 0 8 0 unpcb 144 207 0 207 3 0 3 3 0 8 3 syncache 336 5 0 5 1 1 0 1 0 8 0 tcpcb 736 80 0 78 4 0 4 4 0 8 3 arp 96 58 0 46 1 0 1 1 0 8 0 inpcb 328 363 0 360 11 7 4 7 0 8 3 nd6 112 84 0 69 1 0 1 1 0 8 0 pkpcb 40 4 0 4 3 2 1 1 0 8 1 kcovpl 48 29 0 22 1 0 1 1 0 8 0 ppxss 1072 1 0 1 1 0 1 1 0 8 1 pppxif 1416 1 0 1 1 0 1 1 0 8 1 pfrktable 1344 16 0 16 2 2 0 1 0 8 0 pfanchor 1288 4 0 4 2 2 0 1 0 8 0 pftag 88 3 0 1 2 1 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 3 0 1 2 1 1 1 0 8 0 pfstate 384 2 0 1 2 1 1 1 0 8 0 pfrule 1360 3 0 3 3 2 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 1351 0 1059 32 5 27 29 0 8 2 art_table 40 1353 0 1059 5 0 5 5 0 8 0 art_node 32 333 0 273 1 0 1 1 0 8 0 semapl 72 14 0 4 1 0 1 1 0 8 0 shmpl 120 9 0 2 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 2004 0 497 95 0 95 95 0 8 0 ffsino 256 2004 0 497 95 0 95 95 0 8 0 nchpl 144 2404 0 617 67 0 67 67 0 8 0 vnodes 216 2337 0 0 130 0 130 130 0 8 0 namei 1024 10731 0 10730 7 5 2 4 0 8 1 pfiaddrpl 120 5 0 5 2 2 0 1 0 8 0 kstatmem 264 69 0 46 2 0 2 2 0 8 0 scsiplug 72 2 0 2 2 1 1 1 0 8 1 scxspl 216 9768 0 9741 10 2 8 8 1 8 3 plimitpl 152 144 0 134 1 0 1 1 0 8 0 sigapl 424 896 0 845 9 1 8 8 0 8 0 knotepl 120 7904 0 7882 14 8 6 10 0 8 4 kqueuepl 184 85 0 81 1 0 1 1 0 8 0 pipepl 304 193 0 166 3 0 3 3 0 8 0 fdescpl 448 863 0 845 5 1 4 5 0 8 1 filepl 120 3600 0 3451 13 2 11 11 0 8 4 lockfpl 104 55 0 54 1 0 1 1 0 8 0 lockfspl 48 25 0 24 1 0 1 1 0 8 0 sessionpl 144 52 0 49 1 0 1 1 0 8 0 pgrppl 48 83 0 73 1 0 1 1 0 8 0 ucredpl 104 423 0 418 1 0 1 1 0 8 0 zombiepl 144 847 0 845 3 2 1 1 0 8 0 processpl 1160 896 0 845 5 0 5 5 0 8 0 procpl 664 1272 0 1217 8 1 7 7 0 8 0 sockpl 552 856 0 852 16 4 12 12 0 8 10 mcl64k 65536 10 0 10 3 2 1 1 0 8 1 mcl16k 16384 2 0 2 1 1 0 1 0 8 0 mcl9k128 9344 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 7 0 7 2 2 0 1 0 8 0 mcl4k 4096 2777 0 2726 15 6 9 14 0 8 0 mcl2k 2048 627 0 627 5 1 4 4 0 8 4 mextrefs 64 186 0 186 2 1 1 1 0 8 1 mtagpl 96 4 0 4 1 1 0 1 0 8 0 mbufpl 256 7846 0 7735 23 5 18 22 0 8 7 bufpl 272 4678 0 103 305 0 305 305 0 8 0 anonpl 24 123903 0 120637 49 21 28 33 0 187 0 amapchunkpl 152 18976 0 18577 57 36 21 39 0 158 1 amappl16 200 1334 0 1323 5 2 3 4 0 8 1 amappl15 192 2 0 2 1 1 0 1 0 8 0 amappl14 184 649 0 648 1 0 1 1 0 8 0 amappl13 176 159 0 157 1 0 1 1 0 8 0 amappl12 168 1266 0 1250 2 0 2 2 0 8 0 amappl11 160 23 0 23 1 1 0 1 0 8 0 amappl10 152 59 0 59 1 0 1 1 0 8 1 amappl9 144 269 0 269 1 1 0 1 0 8 0 amappl8 136 175 0 174 1 0 1 1 0 8 0 amappl7 128 187 0 184 1 0 1 1 0 8 0 amappl6 120 351 0 349 1 0 1 1 0 8 0 amappl5 112 104 0 103 1 0 1 1 0 8 0 amappl4 104 329 0 325 1 0 1 1 0 8 0 amappl3 96 3244 0 3195 3 0 3 3 0 8 0 amappl2 88 906 0 884 2 0 2 2 0 8 0 amappl1 80 13354 0 13247 13 1 12 13 0 8 5 amappl 88 5282 0 5186 5 1 4 5 0 92 0 uvmvnodes 80 105 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 11 0 2 1 0 1 1 0 8 0 uaddrrnd 24 863 0 845 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 863 0 845 1 0 1 1 0 8 0 vmmpekpl 168 8713 0 8672 3 0 3 3 0 8 0 vmmpepl 168 63287 0 62588 83 3 80 81 0 357 27 vmsppl 368 862 0 845 4 1 3 4 0 8 0 rwobjpl 40 19953 0 19556 11 0 11 11 0 8 0 pdppl 4096 1732 0 1690 106 38 68 82 0 8 26 pvpl 32 346800 0 340981 122 44 78 99 0 265 21 pmappl 216 862 0 845 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 714 0 72 19 0 19 19 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a760d08,ffffffffffffffff,0,a0c7fd9f,ffffef806a29f8d0,ffffef8007ffd618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a760d08,ffffffffffffffff,0,a0c7fd9f,ffffef806a29f8d0,ffffef8007ffd618) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(ffffef806a29f8d0,4,20c7fd9f,0,ffff80002a760d08) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(ffffef806a29f8d0,4,20c7fd9f,0,ffff80002a760d08) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002a760d08,ffff80002a7b7870,ffff80002a7b77c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a7b7870) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a7b7870) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd95eb0fde20, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a760d08,ffffffffffffffff,0,a0c7fd9f,ffffef806a29f8d0,ffffef8007ffd618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a760d08,ffffffffffffffff,0,a0c7fd9f,ffffef806a29f8d0,ffffef8007ffd618) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(ffffef806a29f8d0,4,20c7fd9f,0,ffff80002a760d08) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(ffffef806a29f8d0,4,20c7fd9f,0,ffff80002a760d08) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002a760d08,ffff80002a7b7870,ffff80002a7b77c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a7b7870) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a7b7870) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd95eb0fde20, count: -5 ddb>