uvm_fault(0xfffff7806bdf72f0, 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 *186177 14315 0 0 0x4000000 0 syz-executor ktrops(ffff80002a756540,ffffffffffffffff,0,a0001916,fffff78075a23720,fffff78007ffd618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a756540,ffffffffffffffff,0,a0001916,fffff78075a23720,fffff78007ffd618) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff78075a23720,4,20001916,ffffffff,ffff80002a756540) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff78075a23720,4,20001916,ffffffff,ffff80002a756540) at doktrace+0x560 sys/kern/kern_ktrace.c:503 sys_ktrace(ffff80002a756540,ffff80002a74dbf0,ffff80002a74db40) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a74dbf0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a74dbf0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x43ece625c20, 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(0xfffff7806bdf72f0, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a756540,ffffffffffffffff,0,a0001916,fffff78075a23720,fffff78007ffd618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a756540,ffffffffffffffff,0,a0001916,fffff78075a23720,fffff78007ffd618) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff78075a23720,4,20001916,ffffffff,ffff80002a756540) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff78075a23720,4,20001916,ffffffff,ffff80002a756540) at doktrace+0x560 sys/kern/kern_ktrace.c:503 sys_ktrace(ffff80002a756540,ffff80002a74dbf0,ffff80002a74db40) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a74dbf0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a74dbf0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x43ece625c20, count: -5 ddb> show registers rdi 0xffff80002f0a2000 rsi 0x6363 __ALIGN_SIZE+0x5363 rbp 0xffff80002a74d910 rbx 0xfffff78007ffd618 rdx 0xffff80002f0a2000 rcx 0x6362 __ALIGN_SIZE+0x5362 rax 0xffffffff817a76c3 ktrops+0x43 r8 0xfffff78075a23720 r9 0xfffff78007ffd618 r10 0xcdcd471879cbf9b4 r11 0x96f7e07ec51698c5 r12 0xffff80002a756540 r13 0x1 r14 0xffffffffffffffff r15 0xa0001916 rip 0xffffffff817a76d8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a74d890 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=186177 pid=14315 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=53, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a757768,0xffff80002f0a1cb0 process=0xffff807fffff8498 user=0xffff80002a748000, vmspace=0xfffff7806bdf72f0 estcpu=3, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 40647 74851 37766 0 2 0 syz-executor 30741 174849 250 0 2 0 syz-executor 30741 123362 250 0 2 0x4000000 syz-executor 30741 257445 250 0 3 0x4000080 fsleep syz-executor 14315 141789 10128 0 2 0 syz-executor *14315 186177 10128 0 7 0x4000000 syz-executor 54656 432985 78743 0 2 0 syz-executor 54656 511992 78743 0 3 0x4000080 msgwait syz-executor 54656 453863 78743 0 2 0x4000000 syz-executor 18340 105155 72202 0 2 0 syz-executor 18340 462021 72202 0 2 0x4000000 syz-executor 79896 155264 83415 0 2 0xc80 syz-executor 79896 142480 83415 0 3 0x4000080 ttyretype syz-executor 79896 87049 83415 0 3 0x4000080 fsleep syz-executor 70665 60143 1 0 3 0x82 nanoslp getty 37766 110077 20247 0 2 0xc82 syz-executor 250 439122 20247 0 3 0x82 nanoslp syz-executor 45883 495345 20247 0 2 0x2 syz-executor 53993 72126 20247 0 2 0x2 syz-executor 78743 379755 20247 0 2 0xc82 syz-executor 10128 327676 20247 0 2 0xc82 syz-executor 72202 88012 20247 0 2 0xc82 syz-executor 83415 293097 20247 0 3 0x82 nanoslp syz-executor 20247 349003 1 0 3 0x82 kqread syz-executor 12483 467173 0 0 3 0x14200 bored smr 17676 151687 0 0 2 0x14200 zerothread 72047 250468 0 0 3 0x14200 aiodoned aiodoned 78753 347956 0 0 3 0x14200 syncer update 29146 498164 0 0 3 0x14200 cleaner cleaner 83168 459516 0 0 3 0x14200 reaper reaper 39473 523302 0 0 3 0x14200 pgdaemon pagedaemon 99070 84942 0 0 3 0x14200 bored viomb 1201 511775 0 0 3 0x40014200 acpi0 acpi0 18592 112744 0 0 2 0x14200 softnet0 96528 215838 0 0 3 0x14200 smrbar systqmp 35728 474516 0 0 3 0x14200 bored systq 74546 124847 0 0 3 0x40014200 tmoslp softclock 33131 377562 0 0 3 0x40014200 idle0 1 465962 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 11042 12292K 12362K 166960K 12282 0 pcb 18 12K 12K 166960K 43 0 rtable 225 6K 7K 166960K 382 0 pf 32 13K 14K 166960K 39 0 ifaddr 40 6K 7K 166960K 46 0 ifgroup 51 2K 2K 166960K 56 0 sysctl 3 1K 9K 166960K 7 0 counters 34 17K 18K 166960K 36 0 ioctlops 0 0K 4K 166960K 120 0 iov 0 0K 16K 166960K 8 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1291 81K 81K 166960K 1424 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 8 0K 0K 166960K 10 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 57K 89K 166960K 250 0 sigio 0 0K 0K 166960K 3 0 proc 20 25K 91K 166960K 522 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 13 0 in_multi 88 6K 7K 166960K 104 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 5 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 377 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 123 82K 166K 166960K 3823 0 UVM aobj 6 2K 2K 166960K 8 0 pinsyscall 18 36K 93K 166960K 1354 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 4 0 NDP 12 0K 2K 166960K 29 0 temp 41 9111K 9115K 166960K 5402 0 kqueue 1 2K 25K 166960K 62 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 40 1 0 1 1 0 8 1 rtentry 136 115 0 15 4 0 4 4 0 8 0 unpcb 144 116 0 116 1 0 1 1 0 8 1 syncache 336 6 0 6 1 0 1 1 0 8 1 tcpcb 736 52 0 49 1 0 1 1 0 8 0 arp 96 19 0 3 1 0 1 1 0 8 0 inpcb 328 156 0 152 2 0 2 2 0 8 0 ip6q 72 1 0 1 1 0 1 1 0 8 1 ip6af 40 3 0 3 1 0 1 1 0 8 1 nd6 112 25 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 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pfstkey 128 2 0 2 1 0 1 1 0 8 1 pfstate 384 1 0 1 1 0 1 1 0 8 1 pfrule 1360 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 256 459 0 2 29 0 29 29 0 8 0 art_table 40 460 0 2 5 0 5 5 0 8 0 art_node 32 115 0 14 1 0 1 1 0 8 0 semapl 72 8 0 2 1 0 1 1 0 8 0 shmpl 112 5 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1756 0 295 92 0 92 92 0 8 0 ffsino 256 1756 0 295 92 0 92 92 0 8 0 nchpl 144 2121 0 426 63 0 63 63 0 8 0 vnodes 216 1876 0 0 105 0 105 105 0 8 0 namei 1024 6510 0 6509 2 0 2 2 0 8 1 kstatmem 264 27 0 2 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 6992 0 6992 3 0 3 3 1 8 3 plimitpl 152 40 0 29 1 0 1 1 0 8 0 sigapl 424 546 0 515 6 0 6 6 0 8 1 knotepl 120 7079 0 7062 9 0 9 9 0 8 7 kqueuepl 184 58 0 57 1 0 1 1 0 8 0 pipepl 304 128 0 101 3 0 3 3 0 8 0 fdescpl 448 533 0 515 5 0 5 5 0 8 1 filepl 120 2237 0 2076 10 0 10 10 0 8 2 lockfpl 104 39 0 39 1 0 1 1 0 8 1 lockfspl 48 17 0 17 1 0 1 1 0 8 1 sessionpl 144 29 0 27 1 0 1 1 0 8 0 pgrppl 48 38 0 28 1 0 1 1 0 8 0 ucredpl 104 218 0 215 1 0 1 1 0 8 0 zombiepl 144 515 0 515 1 0 1 1 0 8 1 processpl 1152 546 0 515 4 0 4 4 0 8 0 procpl 664 728 0 689 5 0 5 5 0 8 1 sockpl 552 316 0 312 4 0 4 4 0 8 2 mcl64k 65536 43 0 43 1 0 1 1 0 8 1 mcl8k 8192 5 0 5 1 0 1 1 0 8 1 mcl4k 4096 2653 0 2597 14 0 14 14 0 8 7 mcl2k 2048 200 0 199 3 0 3 3 0 8 2 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 5626 0 5482 17 0 17 17 0 8 4 bufpl 272 2508 0 104 161 0 161 161 0 8 0 anonpl 24 109293 0 107838 57 0 57 57 0 88 37 amapchunkpl 152 11310 0 10990 27 0 27 27 0 158 9 amappl16 200 2037 0 2017 11 0 11 11 0 8 8 amappl15 192 6 0 6 1 0 1 1 0 8 1 amappl14 184 408 0 408 1 0 1 1 0 8 1 amappl13 176 136 0 135 1 0 1 1 0 8 0 amappl12 168 769 0 753 2 0 2 2 0 8 0 amappl11 160 21 0 21 1 0 1 1 0 8 1 amappl10 152 61 0 61 1 0 1 1 0 8 1 amappl9 144 284 0 284 1 0 1 1 0 8 1 amappl8 136 96 0 96 1 0 1 1 0 8 1 amappl7 128 211 0 209 1 0 1 1 0 8 0 amappl6 120 153 0 152 1 0 1 1 0 8 0 amappl5 112 90 0 89 1 0 1 1 0 8 0 amappl4 104 264 0 262 1 0 1 1 0 8 0 amappl3 96 2117 0 2047 3 0 3 3 0 8 0 amappl2 88 523 0 517 2 0 2 2 0 8 0 amappl1 80 10552 0 10438 13 0 13 13 0 8 7 amappl 88 3115 0 3008 4 0 4 4 0 92 0 uvmvnodes 80 99 0 0 3 0 3 3 0 8 0 dma32768 32768 2 0 2 1 0 1 1 0 8 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 7 0 2 1 0 1 1 0 8 0 uaddrrnd 24 533 0 515 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 533 0 515 1 0 1 1 0 8 0 vmmpekpl 168 6193 0 6162 2 0 2 2 0 8 0 vmmpepl 168 43011 0 42226 88 0 88 88 0 357 47 vmsppl 368 532 0 515 4 0 4 4 0 8 1 rwobjpl 40 15473 0 15065 12 0 12 12 0 8 0 pdppl 4096 1072 0 1030 92 28 64 78 0 8 22 pvpl 32 261171 0 256729 131 0 131 131 0 265 83 pmappl 216 532 0 515 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 524 0 28 15 0 15 15 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a756540,ffffffffffffffff,0,a0001916,fffff78075a23720,fffff78007ffd618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a756540,ffffffffffffffff,0,a0001916,fffff78075a23720,fffff78007ffd618) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff78075a23720,4,20001916,ffffffff,ffff80002a756540) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff78075a23720,4,20001916,ffffffff,ffff80002a756540) at doktrace+0x560 sys/kern/kern_ktrace.c:503 sys_ktrace(ffff80002a756540,ffff80002a74dbf0,ffff80002a74db40) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a74dbf0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a74dbf0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x43ece625c20, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a756540,ffffffffffffffff,0,a0001916,fffff78075a23720,fffff78007ffd618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a756540,ffffffffffffffff,0,a0001916,fffff78075a23720,fffff78007ffd618) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff78075a23720,4,20001916,ffffffff,ffff80002a756540) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff78075a23720,4,20001916,ffffffff,ffff80002a756540) at doktrace+0x560 sys/kern/kern_ktrace.c:503 sys_ktrace(ffff80002a756540,ffff80002a74dbf0,ffff80002a74db40) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a74dbf0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a74dbf0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x43ece625c20, count: -5 ddb>