uvm_fault(0xfffff1806d05e748, 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 *149515 59949 0 0 0x4000000 0 syz-executor ktrops(ffff80003c0de2b8,ffffffffffffffff,0,a0c7df9f,fffff18072550518,fffff18007ffd618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80003c0de2b8,ffffffffffffffff,0,a0c7df9f,fffff18072550518,fffff18007ffd618) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff18072550518,4,20c7df9f,0,ffff80003c0de2b8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff18072550518,4,20c7df9f,0,ffff80003c0de2b8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80003c0de2b8,ffff80003c909330,ffff80003c909280) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003c909330) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c909330) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1ef1dba9450, 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(0xfffff1806d05e748, 0xf, 0, 1) -> e ddb> show kasan No such command ddb> trace ktrops(ffff80003c0de2b8,ffffffffffffffff,0,a0c7df9f,fffff18072550518,fffff18007ffd618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80003c0de2b8,ffffffffffffffff,0,a0c7df9f,fffff18072550518,fffff18007ffd618) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff18072550518,4,20c7df9f,0,ffff80003c0de2b8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff18072550518,4,20c7df9f,0,ffff80003c0de2b8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80003c0de2b8,ffff80003c909330,ffff80003c909280) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003c909330) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c909330) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1ef1dba9450, count: -5 ddb> show registers rdi 0xffff8000338be000 rsi 0x205b __ALIGN_SIZE+0x105b rbp 0xffff80003c909050 rbx 0xfffff18007ffd618 rdx 0xffff8000338be000 rcx 0x205a __ALIGN_SIZE+0x105a rax 0xffffffff81706243 ktrops+0x43 r8 0xfffff18072550518 r9 0xfffff18007ffd618 r10 0xd91560875fa13eb3 r11 0x60f9ae85ff9abf49 r12 0xffff80003c0de2b8 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff81706258 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c908fd0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=149515 pid=59949 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=78, usrpri=79, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c0df4e0,0xffff80002a77cd20 process=0xffff800045ff8d98 user=0xffff80003c904000, vmspace=0xfffff1806d05e748 estcpu=29, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 59949 503662 77734 0 2 0 0 syz-executor *59949 149515 77734 0 7 0 0x4000000 syz-executor 49357 51683 83544 60929 2 0x10 0 syz-executor 49357 358161 83544 60929 2 0x10 0x4000000 syz-executor 49357 164241 83544 60929 3 0x10 0x4000000 inode syz-executor 49357 56836 83544 60929 3 0x10 0x4000080 fsleep syz-executor 90769 480957 38218 0 2 0 0 syz-executor 90769 342640 38218 0 2 0 0x4000000 syz-executor 17543 303516 68580 0 2 0x10 0 syz-executor 17543 434081 68580 0 3 0x10 0x4000080 fsleep syz-executor 9706 439644 1 0 3 0x100003 0x80 ttyin getty 7658 456756 56038 0 3 0x2 0x80 nanoslp syz-executor 83544 7133 56038 0 2 0x2 0xc80 syz-executor 16419 477438 56038 0 3 0x2 0x80 nanoslp syz-executor 77734 234223 56038 0 2 0x2 0xc80 syz-executor 68580 101977 56038 0 2 0x2 0xc80 syz-executor 6076 62652 56038 0 2 0x2 0 syz-executor 38218 80306 56038 0 2 0x2 0xc80 syz-executor 59351 118952 56038 0 2 0x2 0 syz-executor 56038 395878 1 0 3 0x2 0x80 kqread syz-executor 243 96554 0 0 3 0x14000 0x200 bored smr 94713 328826 0 0 2 0x14000 0x200 zerothread 46296 160864 0 0 3 0x14000 0x200 aiodoned aiodoned 86271 418763 0 0 3 0x14000 0x200 syncer update 20982 474541 0 0 3 0x14000 0x200 cleaner cleaner 93629 186046 0 0 3 0x14000 0x200 reaper reaper 75488 93181 0 0 3 0x14000 0x200 pgdaemon pagedaemon 58314 193062 0 0 3 0x14000 0x200 bored viomb 6783 354604 0 0 3 0x14000 0x40000200 acpi0 acpi0 22645 271326 0 0 3 0x14000 0x200 bored softnet0 51775 19201 0 0 3 0x14000 0x200 smrbar systqmp 79170 420734 0 0 3 0x14000 0x200 bored systq 82514 419112 0 0 3 0x14000 0x40000200 tmoslp softclock 86486 159831 0 0 3 0x14000 0x40000200 idle0 1 139667 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 11025 12170K 13685K 166960K 12974 0 pcb 17 12K 12K 166960K 52 0 rtable 231 7K 7K 166960K 406 0 pf 30 13K 18K 166960K 49 0 ifaddr 39 7K 7K 166960K 48 0 ifgroup 46 2K 2K 166960K 54 0 sysctl 1 1K 9K 166960K 10 0 counters 32 17K 18K 166960K 37 0 ioctlops 0 0K 4K 166960K 64 0 iov 0 0K 12K 166960K 5 0 mount 1 1K 1K 166960K 1 0 log 6 1K 1K 166960K 10 0 vnodes 1524 96K 96K 166960K 1800 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 14 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 13 49K 85K 166960K 328 0 sigio 0 0K 0K 166960K 7 0 proc 20 25K 83K 166960K 527 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 24 0 in_multi 88 5K 6K 166960K 108 0 ether_multi 1 0K 0K 166960K 2 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 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 441 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 128 82K 167K 166960K 4511 0 UVM aobj 11 2K 2K 166960K 11 0 pinsyscall 18 36K 88K 166960K 1432 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 9 0 NDP 10 0K 2K 166960K 30 0 temp 42 9111K 9174K 166960K 8952 0 kqueue 1 2K 22K 166960K 65 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 49 0 49 1 0 1 1 0 8 1 rtentry 136 124 0 22 4 0 4 4 0 8 0 unpcb 144 326 0 324 6 0 6 6 0 8 5 syncache 336 7 0 7 1 0 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 736 53 0 50 1 0 1 1 0 8 0 arp 96 20 0 3 1 0 1 1 0 8 0 ipq 40 4 0 1 1 0 1 1 0 8 0 ipqe 40 5 0 2 1 0 1 1 0 8 0 inpcb 328 197 0 194 2 0 2 2 0 8 1 ip6q 72 2 0 1 1 0 1 1 0 8 0 ip6af 40 3 0 2 1 0 1 1 0 8 0 nd6 112 28 0 6 1 0 1 1 0 8 0 pkpcb 40 5 0 5 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 4 0 4 1 0 1 1 0 8 1 pfstscr 40 2 0 0 1 0 1 1 0 8 0 pfrktable 1344 2 0 2 1 0 1 1 0 8 1 pftag 88 4 0 4 1 0 1 1 0 8 1 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 4 0 0 1 0 1 1 0 8 0 pfstate 384 2 0 0 1 0 1 1 0 8 0 pfrule 1360 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 468 0 55 29 0 29 29 0 8 2 art_table 40 470 0 55 5 0 5 5 0 8 0 art_node 32 123 0 30 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 3 1 0 1 1 0 8 1 semapl 72 11 0 1 1 0 1 1 0 8 0 shmpl 112 8 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 1909 0 451 92 0 92 92 0 8 0 ffsino 256 1909 0 451 92 0 92 92 0 8 0 nchpl 144 2378 0 682 64 0 64 64 0 8 0 vnodes 216 2372 0 0 132 0 132 132 0 8 0 namei 1024 7693 0 7691 2 0 2 2 0 8 1 kstatmem 264 27 0 6 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 7875 0 7875 4 0 4 4 1 8 4 plimitpl 152 119 0 109 1 0 1 1 0 8 0 sigapl 424 624 0 593 6 0 6 6 0 8 1 knotepl 120 10488 0 10471 14 4 10 14 0 8 8 kqueuepl 184 65 0 64 1 0 1 1 0 8 0 pipepl 304 131 0 102 3 0 3 3 0 8 0 fdescpl 448 611 0 593 4 0 4 4 0 8 0 filepl 120 3107 0 2943 12 0 12 12 0 8 3 lockfpl 104 149 0 149 2 0 2 2 0 8 2 lockfspl 48 69 0 69 1 0 1 1 0 8 1 sessionpl 144 34 0 31 1 0 1 1 0 8 0 pgrppl 48 43 0 32 1 0 1 1 0 8 0 ucredpl 104 230 0 224 1 0 1 1 0 8 0 zombiepl 144 595 0 593 1 0 1 1 0 8 0 processpl 1152 624 0 593 4 0 4 4 0 8 0 procpl 664 913 0 876 5 0 5 5 0 8 0 sosppl 176 3 0 3 1 0 1 1 0 8 1 sockpl 552 591 0 586 12 2 10 12 0 8 8 mcl64k 65536 41 0 41 1 0 1 1 0 8 1 mcl9k128 9344 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 10 0 10 1 0 1 1 0 8 1 mcl4k 4096 2764 0 2711 15 0 15 15 0 8 8 mcl2k 2048 271 0 269 1 0 1 1 0 8 0 mextrefs 64 130 0 130 1 0 1 1 0 8 1 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 6337 0 6193 17 0 17 17 0 8 4 bufpl 272 2702 0 102 174 0 174 174 0 8 0 anonpl 24 109990 0 108480 36 0 36 36 0 187 16 amapchunkpl 152 13911 0 13561 28 0 28 28 0 158 12 amappl16 200 1922 0 1902 14 3 11 14 0 8 8 amappl15 192 17 0 17 1 0 1 1 0 8 1 amappl14 184 450 0 450 1 0 1 1 0 8 1 amappl13 176 122 0 121 1 0 1 1 0 8 0 amappl12 168 890 0 873 2 0 2 2 0 8 0 amappl11 160 47 0 46 1 0 1 1 0 8 0 amappl10 152 95 0 95 1 0 1 1 0 8 1 amappl9 144 271 0 271 1 0 1 1 0 8 1 amappl8 136 94 0 94 1 0 1 1 0 8 1 amappl7 128 140 0 138 1 0 1 1 0 8 0 amappl6 120 170 0 170 1 0 1 1 0 8 1 amappl5 112 96 0 96 1 0 1 1 0 8 1 amappl4 104 258 0 254 1 0 1 1 0 8 0 amappl3 96 2468 0 2408 3 0 3 3 0 8 0 amappl2 88 748 0 725 2 0 2 2 0 8 0 amappl1 80 10886 0 10771 13 0 13 13 0 8 6 amappl 88 3783 0 3670 4 0 4 4 0 92 0 uvmvnodes 80 99 0 0 3 0 3 3 0 8 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 128 254 0 254 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 24 611 0 593 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 611 0 593 1 0 1 1 0 8 0 vmmpekpl 168 6701 0 6668 2 0 2 2 0 8 0 vmmpepl 168 47670 0 46875 81 0 81 81 0 357 41 vmsppl 368 610 0 593 4 0 4 4 0 8 1 rwobjpl 40 16241 0 15820 11 0 11 11 0 8 1 pdppl 4096 1228 0 1186 90 44 46 76 0 8 4 pvpl 32 282336 0 278117 97 0 97 97 0 265 42 pmappl 216 610 0 593 2 0 2 2 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 533 0 44 14 0 14 14 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80003c0de2b8,ffffffffffffffff,0,a0c7df9f,fffff18072550518,fffff18007ffd618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80003c0de2b8,ffffffffffffffff,0,a0c7df9f,fffff18072550518,fffff18007ffd618) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff18072550518,4,20c7df9f,0,ffff80003c0de2b8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff18072550518,4,20c7df9f,0,ffff80003c0de2b8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80003c0de2b8,ffff80003c909330,ffff80003c909280) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003c909330) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c909330) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1ef1dba9450, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80003c0de2b8,ffffffffffffffff,0,a0c7df9f,fffff18072550518,fffff18007ffd618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80003c0de2b8,ffffffffffffffff,0,a0c7df9f,fffff18072550518,fffff18007ffd618) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff18072550518,4,20c7df9f,0,ffff80003c0de2b8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff18072550518,4,20c7df9f,0,ffff80003c0de2b8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80003c0de2b8,ffff80003c909330,ffff80003c909280) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003c909330) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c909330) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1ef1dba9450, count: -5 ddb>