uvm_fault(0xfffffd8070ded858, 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 *172853 63188 0 0 0x4000000 0 syz-executor ktrops(ffff80002a48d968,ffffffffffffffff,0,a0001430,fffffd806cc78a38,fffffd807f7d77b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a48d968,ffffffffffffffff,0,a0001430,fffffd806cc78a38,fffffd807f7d77b8) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd806cc78a38,4,20001430,ffffffff,ffff80002a48d968) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806cc78a38,4,20001430,ffffffff,ffff80002a48d968) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a48d968,ffff80003763f680,ffff80003763f5d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80003763f680) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa6bf506a010, 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(0xfffffd8070ded858, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a48d968,ffffffffffffffff,0,a0001430,fffffd806cc78a38,fffffd807f7d77b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a48d968,ffffffffffffffff,0,a0001430,fffffd806cc78a38,fffffd807f7d77b8) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd806cc78a38,4,20001430,ffffffff,ffff80002a48d968) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806cc78a38,4,20001430,ffffffff,ffff80002a48d968) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a48d968,ffff80003763f680,ffff80003763f5d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80003763f680) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa6bf506a010, count: -5 ddb> show registers rdi 0xffff800034204000 rsi 0x1bdc __ALIGN_SIZE+0xbdc rbp 0xffff80003763f3a0 rbx 0xfffffd807f7d77b8 rdx 0xffff800034204000 rcx 0x1bdb __ALIGN_SIZE+0xbdb rax 0xffffffff829fa5c3 ktrops+0x43 r8 0xfffffd806cc78a38 r9 0xfffffd807f7d77b8 r10 0xbff1a2876df1a9b0 r11 0x8eb11400e96d1fc6 r12 0xffff80002a48d968 r13 0x1 r14 0xffffffffffffffff r15 0xa0001430 rip 0xffffffff829fa5d8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003763f320 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=172853 pid=63188 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=83, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a48c2a0,0xffff800032802ce0 process=0xffff8000303f59c8 user=0xffff80003763a000, vmspace=0xfffffd8070ded858 estcpu=33, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 37474 181061 11082 0 2 0 syz-executor 37474 308752 11082 0 3 0x4000080 fsleep syz-executor 82146 188713 63865 0 2 0 syz-executor 82146 197830 63865 0 3 0x4000080 fsleep syz-executor 82146 440371 63865 0 3 0x4000080 fsleep syz-executor 98368 489972 60010 0 3 0x80 nanoslp syz-executor 98368 14687 60010 0 3 0x4000080 fsleep syz-executor 98368 43798 60010 0 2 0x4000000 syz-executor 63188 171539 79273 0 2 0 syz-executor *63188 172853 79273 0 7 0x4000000 syz-executor 63188 217099 79273 0 3 0x4000080 fsleep syz-executor 63188 227210 79273 0 2 0x4000000 syz-executor 73832 209662 0 0 3 0x14200 bored sosplice 11082 500921 94625 0 2 0x482 syz-executor 79273 193341 94625 0 3 0x82 nanoslp syz-executor 32855 228880 94625 0 2 0x2 syz-executor 63865 179487 94625 0 2 0x482 syz-executor 40838 523051 94625 0 2 0x2 syz-executor 76044 105699 94625 0 2 0x482 syz-executor 60010 73729 94625 0 2 0x482 syz-executor 69058 265817 94625 0 2 0x2 syz-executor 94625 92734 59416 0 2 0x2 syz-executor 59416 101936 64475 0 3 0x10008a sigsusp ksh 64475 386924 85276 0 3 0x98 kqread sshd-session 85276 43656 41836 0 3 0x92 kqread sshd-session 43944 400375 1 0 3 0x100083 ttyin getty 41836 273627 1 0 3 0x88 kqread sshd 87073 86861 70474 73 3 0x1100090 kqread syslogd 70474 492063 1 0 3 0x100082 sbwait syslogd 57539 316895 1 0 3 0x100080 kqread resolvd 30485 306462 42650 77 3 0x100092 kqread dhcpleased 20296 363451 42650 77 3 0x100092 kqread dhcpleased 42650 290903 1 0 3 0x80 kqread dhcpleased 67442 165773 0 0 3 0x14200 bored smr 75847 331004 0 0 2 0x14200 zerothread 33412 442671 0 0 3 0x14200 aiodoned aiodoned 67149 511387 0 0 3 0x14200 syncer update 96890 489017 0 0 3 0x14200 cleaner cleaner 66390 320953 0 0 3 0x14200 reaper reaper 80224 122228 0 0 3 0x14200 pgdaemon pagedaemon 65612 478547 0 0 3 0x14200 bored viomb 88757 176280 0 0 3 0x40014200 acpi0 acpi0 94500 287234 0 0 3 0x14200 bored softnet3 39615 110392 0 0 3 0x14200 bored softnet2 98809 293980 0 0 3 0x14200 bored softnet1 30647 398922 0 0 3 0x14200 bored softnet0 15524 442189 0 0 3 0x14200 bored systqmp 54678 147708 0 0 3 0x14200 bored systq 2073 484814 0 0 3 0x40014200 tmoslp softclock 92495 237092 0 0 3 0x40014200 idle0 1 489391 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 10183 11063K 11498K 166960K 12625 0 pcb 17 16K 18K 166960K 420 0 rtable 185 6K 9K 166960K 506 0 pf 30 13K 14K 166960K 74 0 ifaddr 36 6K 7K 166960K 66 0 ifgroup 46 2K 2K 166960K 83 0 sysctl 2 0K 0K 166960K 2 0 counters 29 17K 17K 166960K 41 0 ioctlops 0 0K 4K 166960K 106 0 iov 0 0K 16K 166960K 57 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1460 92K 92K 166960K 2248 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 20 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 60 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 16 57K 93K 166960K 987 0 sigio 0 0K 0K 166960K 88 0 proc 60 59K 91K 166960K 556 0 subproc 104 6K 6K 166960K 104 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 101 0 in_multi 76 5K 7K 166960K 160 0 ether_multi 1 0K 0K 166960K 6 0 mrt 2 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 505 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 212 72K 89K 166960K 10900 0 UVM aobj 36 2K 4K 166960K 40 0 pinsyscall 37 74K 96K 166960K 2015 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 44 0 NDP 12 0K 2K 166960K 44 0 temp 52 6814K 6881K 166960K 38000 0 kqueue 13 20K 30K 166960K 191 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 120 139 0 136 2 0 2 2 0 8 1 rtentry 112 161 0 80 4 0 4 4 0 8 0 unpcb 144 842 0 825 10 6 4 4 0 8 3 syncache 336 9 0 9 3 2 1 1 0 8 1 tcpqe 32 4 0 4 3 2 1 1 0 8 1 tcpcb 808 375 0 367 9 1 8 8 0 8 6 arp 88 32 0 10 1 0 1 1 0 8 0 ipq 40 3 0 2 1 0 1 1 0 8 0 ipqe 40 51 0 50 1 0 1 1 0 8 0 inpcb 336 1457 0 1440 22 9 13 13 0 8 10 nd6 104 32 0 18 1 0 1 1 0 8 0 pkpcb 40 4 0 4 3 2 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 7 0 7 2 1 1 1 0 8 1 pfstscr 40 4 0 4 1 1 0 1 0 8 0 pfstkey 128 4 0 4 1 1 0 1 0 8 0 pfstate 344 3 0 3 1 1 0 1 0 8 0 pfrule 1344 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 748 0 332 33 5 28 33 0 8 2 art_table 32 751 0 332 5 0 5 5 0 8 0 art_node 16 157 0 85 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 1 1 0 1 1 0 8 0 semapl 112 56 0 46 1 0 1 1 0 8 0 shmpl 112 37 0 4 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 3167 0 1675 95 0 95 95 0 8 0 ffsino 240 3167 0 1675 89 0 89 89 0 8 0 nchpl 144 4649 0 4120 63 42 21 63 0 8 0 uvmvnodes 80 3815 0 0 78 0 78 78 0 8 0 vnodes 216 3815 0 0 212 0 212 212 0 8 0 namei 1024 15712 0 15711 5 3 2 2 0 8 1 kstatmem 264 44 0 24 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 216 12938 0 12938 10 9 1 8 1 8 1 plimitpl 152 274 0 258 1 0 1 1 0 8 0 sigapl 424 1269 0 1224 6 0 6 6 0 8 0 futexpl 64 14380 0 14375 1 0 1 1 0 8 0 knotepl 120 35473 0 35426 28 18 10 16 0 8 8 kqueuepl 184 428 0 419 4 0 4 4 0 8 3 pipepl 288 214 0 186 7 4 3 5 0 8 1 fdescpl 432 1251 0 1223 5 1 4 5 0 8 0 filepl 120 8584 0 8341 20 6 14 14 0 8 5 lockfpl 104 272 0 268 1 0 1 1 0 8 0 lockfspl 48 107 0 104 1 0 1 1 0 8 0 sessionpl 144 24 0 16 1 0 1 1 0 8 0 pgrppl 48 42 0 26 1 0 1 1 0 8 0 ucredpl 104 1825 0 1814 1 0 1 1 0 8 0 zombiepl 144 1528 0 1527 1 0 1 1 0 8 0 processpl 1096 1269 0 1224 4 0 4 4 0 8 0 procpl 648 2685 0 2632 7 1 6 6 0 8 1 sosppl 168 4 0 4 1 0 1 1 0 8 1 sockpl 504 2458 0 2421 52 22 30 30 0 8 23 mcl64k 65536 13 0 11 2 1 1 1 0 8 0 mcl16k 16384 8 0 8 3 2 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 27 0 27 3 2 1 1 0 8 1 mcl4k 4096 3866 0 3815 18 10 8 16 0 8 0 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 1091 0 1082 12 9 3 9 0 8 1 mtagpl 96 69 0 20 2 0 2 2 0 8 0 mbufpl 256 24352 0 23984 618 588 30 423 0 8 6 bufpl 280 3758 0 99 262 0 262 262 0 8 0 anonpl 24 260841 0 257737 87 42 45 45 0 187 20 amapchunkpl 152 37343 0 36895 45 18 27 36 0 158 6 amappl16 200 6913 0 6885 39 29 10 15 0 8 8 amappl15 192 10 0 10 1 1 0 1 0 8 0 amappl14 184 132 0 122 1 0 1 1 0 8 0 amappl13 176 11 0 11 1 1 0 1 0 8 0 amappl12 168 1865 0 1838 2 0 2 2 0 8 0 amappl11 160 58 0 48 1 0 1 1 0 8 0 amappl10 152 19 0 19 2 2 0 1 0 8 0 amappl9 144 115 0 115 1 1 0 1 0 8 0 amappl8 136 26 0 25 1 0 1 1 0 8 0 amappl7 128 119 0 108 1 0 1 1 0 8 0 amappl6 120 161 0 159 1 0 1 1 0 8 0 amappl5 112 139 0 130 1 0 1 1 0 8 0 amappl4 104 309 0 294 1 0 1 1 0 8 0 amappl3 96 6730 0 6644 3 0 3 3 0 8 0 amappl2 88 1555 0 1478 2 0 2 2 0 8 0 amappl1 80 10483 0 9975 14 1 13 13 0 8 0 amappl 88 10459 0 10301 5 0 5 5 0 92 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 128 254 0 254 2 2 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 8 0 8 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 39 0 4 1 0 1 1 0 8 0 uaddrrnd 24 1251 0 1223 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1251 0 1223 1 0 1 1 0 8 0 vmmpekpl 168 11122 0 11084 3 0 3 3 0 8 0 vmmpepl 168 85176 0 83522 103 14 89 89 0 357 7 vmsppl 352 1250 0 1223 4 1 3 4 0 8 0 rwobjpl 24 30636 0 25945 30 1 29 29 0 8 0 pdppl 4096 2508 0 2446 104 38 66 80 0 8 4 pvpl 32 595905 0 587875 172 57 115 115 0 265 33 pmappl 216 1250 0 1223 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 1084 0 698 22 9 13 22 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a48d968,ffffffffffffffff,0,a0001430,fffffd806cc78a38,fffffd807f7d77b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a48d968,ffffffffffffffff,0,a0001430,fffffd806cc78a38,fffffd807f7d77b8) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd806cc78a38,4,20001430,ffffffff,ffff80002a48d968) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806cc78a38,4,20001430,ffffffff,ffff80002a48d968) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a48d968,ffff80003763f680,ffff80003763f5d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80003763f680) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa6bf506a010, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a48d968,ffffffffffffffff,0,a0001430,fffffd806cc78a38,fffffd807f7d77b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a48d968,ffffffffffffffff,0,a0001430,fffffd806cc78a38,fffffd807f7d77b8) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd806cc78a38,4,20001430,ffffffff,ffff80002a48d968) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806cc78a38,4,20001430,ffffffff,ffff80002a48d968) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a48d968,ffff80003763f680,ffff80003763f5d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80003763f680) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa6bf506a010, count: -5