uvm_fault(0xfffffd806ba1a8b0, 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 *307726 1709 0 0 0x4000000 0 syz-executor ktrops(ffff80002a7f0a78,ffffffffffffffff,0,a0c7df9f,fffffd8065eea100,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f0a78,ffffffffffffffff,0,a0c7df9f,fffffd8065eea100,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8065eea100,4,20c7df9f,0,ffff80002a7f0a78) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8065eea100,4,20c7df9f,0,ffff80002a7f0a78) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7f0a78,ffff80002f1019e0,ffff80002f101930) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002f1019e0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002f1019e0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x67e17672c00, 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(0xfffffd806ba1a8b0, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a7f0a78,ffffffffffffffff,0,a0c7df9f,fffffd8065eea100,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f0a78,ffffffffffffffff,0,a0c7df9f,fffffd8065eea100,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8065eea100,4,20c7df9f,0,ffff80002a7f0a78) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8065eea100,4,20c7df9f,0,ffff80002a7f0a78) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7f0a78,ffff80002f1019e0,ffff80002f101930) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002f1019e0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002f1019e0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x67e17672c00, count: -5 ddb> show registers rdi 0xffff80002a8f6000 rsi 0x22a3 __ALIGN_SIZE+0x12a3 rbp 0xffff80002f101700 rbx 0xfffffd8007bfb888 rdx 0xffff80002a8f6000 rcx 0x22a2 __ALIGN_SIZE+0x12a2 rax 0xffffffff83255033 ktrops+0x43 r8 0xfffffd8065eea100 r9 0xfffffd8007bfb888 r10 0x54db6a59d3d14c20 r11 0x84c0cba2e41bcc9d r12 0xffff80002a7f0a78 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff83255048 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002f101680 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=307726 pid=1709 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=0xffff80002a7f0548,0xffff80002a7f1250 process=0xffff80003c9e4920 user=0xffff80002f0fc000, vmspace=0xfffffd806ba1a8b0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 93451 171434 29004 0 2 0 syz-executor 93451 27479 29004 0 2 0x4000000 syz-executor 19864 224847 13862 0 2 0 syz-executor 19864 154431 13862 0 3 0x4000080 fsleep syz-executor 1709 404133 4187 0 2 0 syz-executor * 1709 307726 4187 0 7 0x4000000 syz-executor 48639 344605 84820 0 2 0 syz-executor 48639 108088 84820 0 3 0x4000080 fsleep syz-executor 3403 215368 64410 0 2 0 syz-executor 3403 485208 64410 0 3 0x4000080 fsleep syz-executor 81505 19339 30877 0 2 0 syz-executor 81505 60545 30877 0 3 0x4000080 kqread syz-executor 79537 513093 31004 0 2 0 syz-executor 79537 297814 31004 0 3 0x4000080 fsleep syz-executor 35298 58944 0 0 3 0x14200 bored sosplice 64410 251628 78257 0 3 0x82 nanoslp syz-executor 1418 8156 0 0 3 0x14280 nfsidl nfsio 30484 115133 0 0 3 0x14280 nfsidl nfsio 2083 104987 0 0 3 0x14280 nfsidl nfsio 36540 436044 0 0 3 0x14280 nfsidl nfsio 77414 187952 0 0 3 0x14280 nfsidl nfsio 50493 206268 0 0 3 0x14280 nfsidl nfsio 53240 477773 0 0 3 0x14280 nfsidl nfsio 39900 269994 0 0 3 0x14280 nfsidl nfsio 78114 423909 0 0 3 0x14280 nfsidl nfsio 21426 155101 0 0 3 0x14280 nfsidl nfsio 67405 243035 0 0 3 0x14280 nfsidl nfsio 96667 335125 0 0 3 0x14280 nfsidl nfsio 14917 160199 0 0 3 0x14280 nfsidl nfsio 67900 374489 0 0 3 0x14280 nfsidl nfsio 28865 224090 0 0 3 0x14280 nfsidl nfsio 29287 419989 0 0 3 0x14280 nfsidl nfsio 77227 157588 0 0 3 0x14280 nfsidl nfsio 30573 198003 0 0 3 0x14280 nfsidl nfsio 7687 98790 0 0 3 0x14280 nfsidl nfsio 31672 401840 0 0 3 0x14280 nfsidl nfsio 30877 324346 78257 0 3 0x82 nanoslp syz-executor 29004 34060 78257 0 3 0x82 nanoslp syz-executor 31004 41011 78257 0 3 0x82 nanoslp syz-executor 13862 380350 78257 0 3 0x82 nanoslp syz-executor 84820 407438 78257 0 3 0x82 nanoslp syz-executor 93363 432138 78257 0 2 0x2 syz-executor 4187 192155 78257 0 3 0x82 nanoslp syz-executor 78257 310231 48538 0 2 0x2 syz-executor 48538 131260 16223 0 3 0x10008a sigsusp ksh 16223 33404 47913 0 3 0x98 kqread sshd-session 47913 116455 66603 0 3 0x92 kqread sshd-session 36953 21555 1 0 3 0x100083 ttyin getty 66603 216822 1 0 3 0x88 kqread sshd 42564 282927 97538 73 3 0x1100090 kqread syslogd 97538 33963 1 0 3 0x100082 sbwait syslogd 30724 146843 1 0 3 0x100080 kqread resolvd 60107 144494 75115 77 3 0x100092 kqread dhcpleased 42066 242714 75115 77 3 0x100092 kqread dhcpleased 75115 8782 1 0 3 0x80 kqread dhcpleased 79352 261120 0 0 3 0x14200 bored smr 41320 366500 0 0 2 0x14200 zerothread 45757 386330 0 0 3 0x14200 aiodoned aiodoned 37987 445588 0 0 3 0x14200 syncer update 67147 392175 0 0 3 0x14200 cleaner cleaner 39378 356652 0 0 3 0x14200 reaper reaper 54865 390398 0 0 3 0x14200 pgdaemon pagedaemon 48936 76807 0 0 3 0x14200 bored viomb 20914 72771 0 0 3 0x40014200 acpi0 acpi0 12902 74765 0 0 3 0x14200 bored softnet0 28936 163546 0 0 3 0x14200 bored systqmp 73622 283912 0 0 3 0x14200 bored systq 51300 178748 0 0 3 0x40014200 tmoslp softclock 18724 503949 0 0 3 0x40014200 idle0 1 224885 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 10180 11124K 11391K 166960K 11429 0 pcb 18 13K 14K 166960K 135 0 rtable 209 7K 7K 166960K 324 0 pf 31 13K 13K 166960K 45 0 ifaddr 43 7K 8K 166960K 57 0 ifgroup 50 2K 2K 166960K 67 0 sysctl 1 1K 9K 166960K 6 0 counters 32 17K 18K 166960K 42 0 ioctlops 0 0K 4K 166960K 48 0 iov 0 0K 16K 166960K 14 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1346 85K 85K 166960K 1477 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 8 0K 0K 166960K 8 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 89K 166960K 299 0 sigio 0 0K 0K 166960K 2 0 proc 60 59K 83K 166960K 515 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 19 0 in_multi 99 7K 7K 166960K 117 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 376 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 217 152K 160K 166960K 4218 0 UVM aobj 9 6K 6K 166960K 9 0 pinsyscall 38 76K 92K 166960K 1357 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 15 0 NDP 11 0K 2K 166960K 35 0 temp 37 8635K 8699K 166960K 14498 0 kqueue 13 20K 27K 166960K 52 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 52 0 49 1 0 1 1 0 8 0 rtentry 136 113 0 23 4 0 4 4 0 8 0 unpcb 144 125 0 106 1 0 1 1 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 54 0 50 1 0 1 1 0 8 0 arp 96 13 0 1 1 0 1 1 0 8 0 inpcb 328 331 0 322 11 9 2 7 0 8 1 ip6q 72 1 0 0 1 0 1 1 0 8 0 ip6af 40 2 0 0 1 0 1 1 0 8 0 nd6 112 20 0 2 1 0 1 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1072 8 0 8 2 1 1 1 0 8 1 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 2 0 0 1 0 1 1 0 8 0 pfstate 384 1 0 0 1 0 1 1 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 518 0 83 30 0 30 30 0 8 1 art_table 40 519 0 83 5 0 5 5 0 8 0 art_node 32 112 0 33 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 1 0 1 0 8 0 semapl 112 6 0 0 1 0 1 1 0 8 0 shmpl 112 6 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1826 0 320 95 0 95 95 0 8 0 ffsino 256 1826 0 320 95 0 95 95 0 8 0 nchpl 144 2255 0 572 63 0 63 63 0 8 0 rtmask 32 4 0 4 2 1 1 1 0 8 1 uvmvnodes 80 1973 0 0 41 0 41 41 0 8 0 vnodes 216 1973 0 0 110 0 110 110 0 8 0 namei 1024 6867 0 6866 3 2 1 2 0 8 0 kstatmem 264 34 0 12 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 216 8335 0 8335 15 7 8 8 1 8 8 plimitpl 152 121 0 105 1 0 1 1 0 8 0 sigapl 424 595 0 532 8 0 8 8 0 8 0 knotepl 120 24870 0 24823 16 14 2 9 0 8 0 kqueuepl 184 71 0 61 1 0 1 1 0 8 0 pipepl 304 112 0 84 3 0 3 3 0 8 0 fdescpl 448 561 0 532 5 1 4 5 0 8 0 filepl 120 2406 0 2186 11 2 9 9 0 8 1 lockfpl 104 117 0 114 1 0 1 1 0 8 0 lockfspl 48 26 0 23 1 0 1 1 0 8 0 sessionpl 144 22 0 14 1 0 1 1 0 8 0 pgrppl 48 31 0 15 1 0 1 1 0 8 0 ucredpl 104 221 0 209 1 0 1 1 0 8 0 zombiepl 144 588 0 588 3 2 1 1 0 8 1 processpl 1152 595 0 532 5 0 5 5 0 8 0 procpl 664 875 0 805 8 0 8 8 0 8 1 sockpl 552 511 0 480 10 7 3 7 0 8 0 mcl64k 65536 8 0 7 2 1 1 1 0 8 0 mcl16k 16384 2 0 2 2 2 0 1 0 8 0 mcl8k 8192 6 0 6 2 2 0 1 0 8 0 mcl4k 4096 2646 0 2594 15 7 8 14 0 8 1 mcl2k 2048 392 0 391 1 0 1 1 0 8 0 mtagpl 96 6 0 6 2 1 1 1 0 8 1 mbufpl 256 5316 0 5147 12 0 12 12 0 8 0 bufpl 280 3398 0 118 235 0 235 235 0 8 0 anonpl 24 98232 0 94627 26 1 25 26 0 187 0 amapchunkpl 152 12361 0 11893 25 0 25 25 0 158 2 amappl16 200 1509 0 1483 5 2 3 4 0 8 0 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 108 0 98 1 0 1 1 0 8 0 amappl13 176 2 0 2 1 1 0 1 0 8 0 amappl12 168 1188 0 1159 2 0 2 2 0 8 0 amappl11 160 42 0 32 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 1 0 1 0 8 0 amappl9 144 253 0 253 1 1 0 1 0 8 0 amappl8 136 22 0 20 1 0 1 1 0 8 0 amappl7 128 106 0 96 1 0 1 1 0 8 0 amappl6 120 179 0 175 1 0 1 1 0 8 0 amappl5 112 114 0 107 1 0 1 1 0 8 0 amappl4 104 265 0 249 1 0 1 1 0 8 0 amappl3 96 2084 0 2000 3 0 3 3 0 8 0 amappl2 88 789 0 719 2 0 2 2 0 8 0 amappl1 80 8536 0 7985 13 1 12 13 0 8 0 amappl 88 3536 0 3384 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 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 8 0 0 1 0 1 1 0 8 0 uaddrrnd 24 561 0 532 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 561 0 532 1 0 1 1 0 8 0 vmmpekpl 168 5998 0 5963 2 0 2 2 0 8 0 vmmpepl 168 40700 0 38877 86 1 85 85 0 357 1 vmsppl 368 560 0 532 4 1 3 4 0 8 0 rwobjpl 40 15251 0 12436 29 0 29 29 0 8 0 pdppl 4096 1128 0 1064 102 36 66 78 0 8 2 pvpl 32 254149 0 244984 93 6 87 93 0 265 2 pmappl 216 560 0 532 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 377 0 55 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a7f0a78,ffffffffffffffff,0,a0c7df9f,fffffd8065eea100,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f0a78,ffffffffffffffff,0,a0c7df9f,fffffd8065eea100,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8065eea100,4,20c7df9f,0,ffff80002a7f0a78) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8065eea100,4,20c7df9f,0,ffff80002a7f0a78) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7f0a78,ffff80002f1019e0,ffff80002f101930) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002f1019e0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002f1019e0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x67e17672c00, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a7f0a78,ffffffffffffffff,0,a0c7df9f,fffffd8065eea100,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7f0a78,ffffffffffffffff,0,a0c7df9f,fffffd8065eea100,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8065eea100,4,20c7df9f,0,ffff80002a7f0a78) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8065eea100,4,20c7df9f,0,ffff80002a7f0a78) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7f0a78,ffff80002f1019e0,ffff80002f101930) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80002f1019e0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002f1019e0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x67e17672c00, count: -5