uvm_fault(0xfffff8006fd8e458, 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 *192636 572 0 0 0x4000000 0 syz-executor ktrops(ffff80003c8fa550,ffffffffffffffff,0,a0c7df9f,fffff8006a8edd00,fffff80007ffd7b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80003c8fa550,ffffffffffffffff,0,a0c7df9f,fffff8006a8edd00,fffff80007ffd7b8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff8006a8edd00,4,20c7df9f,0,ffff80003c8fa550) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff8006a8edd00,4,20c7df9f,0,ffff80003c8fa550) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80003c8fa550,ffff80002a75d800,ffff80002a75d750) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a75d800) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a75d800) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5909d15b5d0, 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(0xfffff8006fd8e458, 0xf, 0, 1) -> e ddb> show kasan No such command ddb> trace ktrops(ffff80003c8fa550,ffffffffffffffff,0,a0c7df9f,fffff8006a8edd00,fffff80007ffd7b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80003c8fa550,ffffffffffffffff,0,a0c7df9f,fffff8006a8edd00,fffff80007ffd7b8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff8006a8edd00,4,20c7df9f,0,ffff80003c8fa550) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff8006a8edd00,4,20c7df9f,0,ffff80003c8fa550) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80003c8fa550,ffff80002a75d800,ffff80002a75d750) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a75d800) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a75d800) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5909d15b5d0, count: -5 ddb> show registers rdi 0xffff8000314b8000 rsi 0x4e0c __ALIGN_SIZE+0x3e0c rbp 0xffff80002a75d520 rbx 0xfffff80007ffd7b8 rdx 0xffff8000314b8000 rcx 0x4e0b __ALIGN_SIZE+0x3e0b rax 0xffffffff8280a813 ktrops+0x43 r8 0xfffff8006a8edd00 r9 0xfffff80007ffd7b8 r10 0x8757012d48f0ed07 r11 0xe8d870cd3c8250b2 r12 0xffff80003c8fa550 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff8280a828 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a75d4a0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=192636 pid=572 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=0xffff80003c8fa020,0xffff80002f0b0028 process=0xffff800045ff9b18 user=0xffff80002a758000, vmspace=0xfffff8006fd8e458 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 20551 169495 86382 0 4 0x2000 0x80000 syz-executor 20551 243455 86382 0 3 0x2000 0x4080000 smrbar syz-executor 20551 459771 86382 0 3 0x2000 0x4000000 suspend syz-executor 60849 366477 1684 0 2 0 0 syz-executor 60849 364492 1684 0 3 0 0x4000080 fsleep syz-executor 572 350512 93525 0 2 0 0 syz-executor * 572 192636 93525 0 7 0 0x4000000 syz-executor 33666 200164 98048 0 3 0x10 0x80 nanoslp syz-executor 33666 163947 98048 0 3 0x10 0x4000080 kqread syz-executor 33666 198905 98048 0 3 0x10 0x4000080 fsleep syz-executor 33666 111028 98048 0 3 0x10 0x4000080 fsleep syz-executor 79836 499248 1 0 3 0 0x80 nanoslp init 1684 249227 95677 0 3 0x2 0x80 nanoslp syz-executor 2438 159156 95677 0 2 0x2 0 syz-executor 71409 94307 95677 0 2 0x2 0 syz-executor 64249 297477 95677 0 2 0x10000002 0x80 syz-executor 93525 142799 95677 0 3 0x2 0x80 nanoslp syz-executor 86382 5623 95677 0 3 0x2 0x80 nanoslp syz-executor 98048 247294 95677 0 3 0x2 0x80 nanoslp syz-executor 66210 194919 95677 0 2 0x2 0 syz-executor 95677 448465 1 0 3 0x2 0x80 kqread syz-executor 14265 189198 0 0 3 0x14000 0x200 bored smr 21234 27461 0 0 2 0x14000 0x200 zerothread 52998 366500 0 0 3 0x14000 0x200 aiodoned aiodoned 22495 428202 0 0 3 0x14000 0x200 syncer update 28814 336734 0 0 3 0x14000 0x200 cleaner cleaner 16435 445857 0 0 3 0x14000 0x200 reaper reaper 74989 478068 0 0 3 0x14000 0x200 pgdaemon pagedaemon 20518 167419 0 0 3 0x14000 0x200 bored viomb 38552 91441 0 0 3 0x14000 0x40000200 acpi0 acpi0 77201 57943 0 0 2 0x14000 0x200 softnet0 76905 342836 0 0 3 0x14000 0x200 bored systqmp 52333 219406 0 0 3 0x14000 0x200 bored systq 47053 92614 0 0 3 0x14000 0x40000200 tmoslp softclock 25800 70837 0 0 3 0x14000 0x40000200 idle0 1 344041 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 11066 12191K 12378K 166960K 12801 0 pcb 17 13K 13K 166960K 124 0 rtable 261 9K 11K 166960K 511 0 pf 37 14K 73K 166960K 142 0 ifaddr 42 7K 8K 166960K 66 0 ifgroup 59 2K 2K 166960K 101 0 sysctl 4 1K 9K 166960K 10 0 counters 35 18K 18K 166960K 57 0 ioctlops 0 0K 4K 166960K 207 0 iov 0 0K 12K 166960K 23 0 mount 1 1K 1K 166960K 1 0 log 1 0K 0K 166960K 5 0 vnodes 1379 87K 87K 166960K 1941 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 17 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 78 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 13 49K 240K 166960K 705 0 sigio 0 0K 0K 166960K 7 0 proc 11 17K 116K 166960K 592 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 116 0 in_multi 95 6K 7K 166960K 131 0 ether_multi 1 0K 0K 166960K 3 0 mrt 0 0K 0K 166960K 24 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 480 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 104 77K 168K 166960K 7525 0 UVM aobj 35 3K 3K 166960K 37 0 pinsyscall 15 30K 94K 166960K 1797 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 23 0 NDP 13 0K 2K 166960K 43 0 temp 43 9112K 9175K 166960K 13306 0 kqueue 2 4K 26K 166960K 113 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 87 0 86 2 1 1 1 0 8 0 rtentry 136 140 0 33 5 0 5 5 0 8 0 unpcb 144 380 0 378 2 0 2 2 0 8 1 syncache 336 17 0 17 2 1 1 1 0 8 1 tcpqe 32 10 0 10 1 1 0 1 0 8 0 tcpcb 736 307 0 296 7 5 2 7 0 8 0 arp 96 18 0 4 1 0 1 1 0 8 0 ipq 40 7 0 0 1 0 1 1 0 8 0 ipqe 40 7 0 0 1 0 1 1 0 8 0 inpcb 328 682 0 661 10 5 5 7 0 8 2 ip6q 72 1 0 1 1 0 1 1 0 8 1 ip6af 40 2 0 2 1 0 1 1 0 8 1 nd6 112 47 0 16 2 0 2 2 0 8 0 pkpcb 40 4 0 4 2 1 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 17 0 17 2 1 1 1 0 8 1 pppxif 1416 2 0 2 1 1 0 1 0 8 0 pfstscr 40 4 0 2 1 0 1 1 0 8 0 pfrktable 1344 12 0 12 2 1 1 1 0 8 1 pfanchor 1288 8 0 3 1 0 1 1 0 8 0 pftag 88 4 0 2 2 1 1 1 0 8 0 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 8 0 8 2 1 1 1 0 8 1 rttmr 136 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 836 0 302 45 9 36 43 0 8 1 art_table 40 838 0 302 7 1 6 7 0 8 0 art_node 32 140 0 43 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 1 1 0 1 1 0 8 0 semapl 72 73 0 63 1 0 1 1 0 8 0 shmpl 112 34 0 2 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2644 0 1194 92 0 92 92 0 8 0 ffsino 256 2644 0 1194 92 0 92 92 0 8 0 nchpl 144 3630 0 1937 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 vnodes 216 3024 0 0 168 0 168 168 0 8 0 namei 1024 11578 0 11577 3 2 1 2 0 8 0 pfiaddrpl 120 3 0 3 2 1 1 1 0 8 1 kstatmem 264 55 0 28 3 0 3 3 0 8 1 scsiplug 72 3 0 3 2 1 1 1 0 8 1 scxspl 216 13546 0 13546 4 3 1 4 1 8 1 plimitpl 152 221 0 211 1 0 1 1 0 8 0 sigapl 424 989 0 959 6 1 5 6 0 8 0 knotepl 120 24869 0 24851 16 7 9 9 0 8 7 kqueuepl 184 152 0 150 1 0 1 1 0 8 0 pipepl 304 157 0 130 3 0 3 3 0 8 0 fdescpl 448 976 0 960 5 1 4 5 0 8 0 filepl 120 5288 0 5124 12 2 10 10 0 8 3 lockfpl 104 312 0 312 2 0 2 2 0 8 2 lockfspl 48 149 0 149 1 0 1 1 0 8 1 sessionpl 144 44 0 42 1 0 1 1 0 8 0 pgrppl 48 56 0 46 1 0 1 1 0 8 0 ucredpl 104 1292 0 1285 1 0 1 1 0 8 0 zombiepl 144 960 0 959 1 0 1 1 0 8 0 processpl 1152 989 0 959 4 0 4 4 0 8 0 procpl 664 1749 0 1712 6 1 5 6 0 8 0 sockpl 552 1173 0 1149 9 4 5 7 0 8 2 mcl64k 65536 137 0 137 2 1 1 1 0 8 1 mcl16k 16384 16 0 16 2 1 1 1 0 8 1 mcl12k 12288 2 0 2 2 1 1 1 0 8 1 mcl8k 8192 20 0 20 2 1 1 1 0 8 1 mcl4k 4096 3313 0 3258 15 7 8 15 0 8 0 mcl2k 2048 614 0 605 3 1 2 3 0 8 0 mextrefs 64 341 0 340 2 1 1 1 0 8 0 mtagpl 96 69 0 69 2 1 1 1 0 8 1 mbufpl 256 10506 0 10244 20 2 18 20 0 8 0 bufpl 272 4659 0 103 304 0 304 304 0 8 0 anonpl 24 149029 0 147674 48 23 25 48 0 187 1 amapchunkpl 152 24691 0 24421 33 9 24 25 0 158 10 amappl16 200 2463 0 2435 15 9 6 15 0 8 1 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 413 0 413 1 1 0 1 0 8 0 amappl13 176 169 0 169 1 1 0 1 0 8 0 amappl12 168 1218 0 1204 2 0 2 2 0 8 0 amappl11 160 10 0 10 1 1 0 1 0 8 0 amappl10 152 55 0 55 1 1 0 1 0 8 0 amappl9 144 269 0 269 1 1 0 1 0 8 0 amappl8 136 117 0 117 1 1 0 1 0 8 0 amappl7 128 146 0 144 1 0 1 1 0 8 0 amappl6 120 153 0 152 1 0 1 1 0 8 0 amappl5 112 104 0 103 2 1 1 1 0 8 0 amappl4 104 262 0 260 1 0 1 1 0 8 0 amappl3 96 5013 0 4954 3 0 3 3 0 8 0 amappl2 88 525 0 517 2 0 2 2 0 8 0 amappl1 80 12406 0 12327 13 5 8 13 0 8 0 amappl 88 6740 0 6646 4 0 4 4 0 92 0 uvmvnodes 80 113 0 0 3 0 3 3 0 8 0 dma8192 8192 1 0 1 1 1 0 1 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 128 255 0 255 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 36 0 2 1 0 1 1 0 8 0 uaddrrnd 24 976 0 960 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 976 0 960 1 0 1 1 0 8 0 vmmpekpl 168 8951 0 8917 2 0 2 2 0 8 0 vmmpepl 168 67720 0 67066 81 36 45 81 0 357 5 vmsppl 368 975 0 960 4 1 3 4 0 8 0 rwobjpl 40 20076 0 19674 11 1 10 11 0 8 0 pdppl 4096 1958 0 1920 100 54 46 80 0 8 8 pvpl 32 419796 0 415093 100 34 66 96 0 265 8 pmappl 216 975 0 960 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 709 0 90 18 0 18 18 0 8 0 ddb> machine ddbcpu 0 No such command ddb>