uvm_fault(0xfffffd806b9f6b90, 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 *476188 75959 0 0 0x4000000 0 syz-executor ktrops(ffff80003691a020,ffffffffffffffff,0,a0c7df9f,fffffd806f5127f0,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003691a020,ffffffffffffffff,0,a0c7df9f,fffffd806f5127f0,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806f5127f0,4,20c7df9f,0,ffff80003691a020) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806f5127f0,4,20c7df9f,0,ffff80003691a020) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003691a020,ffff80003c967e60,ffff80003c967db0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c967e60) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c967e60) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77fbcb92f10, 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(0xfffffd806b9f6b90, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80003691a020,ffffffffffffffff,0,a0c7df9f,fffffd806f5127f0,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003691a020,ffffffffffffffff,0,a0c7df9f,fffffd806f5127f0,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806f5127f0,4,20c7df9f,0,ffff80003691a020) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806f5127f0,4,20c7df9f,0,ffff80003691a020) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003691a020,ffff80003c967e60,ffff80003c967db0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c967e60) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c967e60) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77fbcb92f10, count: -5 ddb> show registers rdi 0xffff80003691a020 rsi 0xffffffffffffffff rbp 0xffff80003c967b80 rbx 0xfffffd8007bfb888 rdx 0 rcx 0xa0c7df9f rax 0xffff80003691a020 r8 0xfffffd806f5127f0 r9 0xfffffd8007bfb888 r10 0x451859d220033ec8 r11 0x1a7f8c9fd37fe73e r12 0xffff80003691a020 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff812b9608 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c967b00 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=476188 pid=75959 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=73, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003691a550,0xffff80003691afc0 process=0xffff8000ffff9698 user=0xffff80003c962000, vmspace=0xfffffd806b9f6b90 estcpu=23, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 57686 99224 64900 0 2 0 syz-executor 57686 501902 64900 0 3 0x4000080 fsleep syz-executor 57686 359395 64900 0 2 0x4000000 syz-executor 72583 383232 50609 0 2 0x1 syz-executor 72583 24304 50609 0 2 0x4000001 syz-executor 72583 130945 50609 0 3 0x4000080 fsleep syz-executor 72583 220582 50609 0 3 0x4000080 fsleep syz-executor 59826 255012 18271 0 2 0 syz-executor 59826 272992 18271 0 2 0x4000000 syz-executor 59826 405610 18271 0 2 0x4000000 syz-executor 20508 149999 53850 60929 2 0x11 syz-executor 20508 325831 53850 60929 2 0x4000010 syz-executor 75959 506379 99054 0 2 0 syz-executor 75959 441496 99054 0 2 0x4000000 syz-executor *75959 476188 99054 0 7 0x4000000 syz-executor 51191 5181 38557 0 2 0 syz-executor 51191 504728 38557 0 2 0x4000001 syz-executor 73665 263648 23514 0 3 0x82 wait syz-executor 38557 437652 23514 0 2 0x3 syz-executor 50609 201117 23514 0 2 0x3 syz-executor 53850 449906 23514 0 2 0x3 syz-executor 99054 17152 23514 0 2 0x3 syz-executor 87036 393017 23514 0 2 0x2 syz-executor 64900 314842 23514 0 3 0x82 nanoslp syz-executor 18271 339120 23514 0 3 0x82 nanoslp syz-executor 23514 182664 82392 0 3 0x82 kqread syz-executor 82392 458295 70573 0 3 0x10008a sigsusp ksh 70573 275171 92231 0 3 0x98 kqread sshd-session 92231 271611 37765 0 3 0x92 kqread sshd-session 87547 3801 1 0 3 0x100083 ttyopn getty 37765 345644 1 0 3 0x88 kqread sshd 35105 77966 21206 73 3 0x1100090 kqread syslogd 21206 173699 1 0 3 0x100082 sbwait syslogd 14566 308909 1 0 3 0x100080 kqread resolvd 43527 20542 7602 77 3 0x100092 kqread dhcpleased 15422 29012 7602 77 3 0x100092 kqread dhcpleased 7602 477283 1 0 3 0x80 kqread dhcpleased 58258 182337 0 0 3 0x14200 bored smr 68062 453209 0 0 2 0x14200 zerothread 1722 289337 0 0 3 0x14200 aiodoned aiodoned 89644 411778 0 0 3 0x14200 syncer update 48983 301264 0 0 3 0x14200 cleaner cleaner 53108 375791 0 0 3 0x14200 reaper reaper 40734 41340 0 0 3 0x14200 pgdaemon pagedaemon 61466 51315 0 0 3 0x14200 bored viomb 43678 213903 0 0 3 0x40014200 acpi0 acpi0 67513 216803 0 0 3 0x14200 bored softnet0 8530 415407 0 0 3 0x14200 bored systqmp 7014 218636 0 0 3 0x14200 bored systq 58984 132157 0 0 3 0x40014200 tmoslp softclock 3885 149784 0 0 3 0x40014200 idle0 1 209944 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 10172 11046K 11315K 166960K 11337 0 pcb 17 14K 16K 166960K 106 0 rtable 209 6K 6K 166960K 269 0 pf 32 13K 17K 166960K 36 0 ifaddr 43 7K 7K 166960K 46 0 ifgroup 52 2K 2K 166960K 54 0 sysctl 1 1K 9K 166960K 5 0 counters 33 17K 18K 166960K 36 0 ioctlops 0 0K 4K 166960K 43 0 iov 0 0K 12K 166960K 5 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1404 88K 88K 166960K 1460 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 7 0K 0K 166960K 8 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 202 0 sigio 0 0K 0K 166960K 3 0 proc 60 59K 91K 166960K 479 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 1 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 352 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 219 168K 171K 166960K 3510 0 UVM aobj 4 2K 2K 166960K 4 0 pinsyscall 38 76K 94K 166960K 1234 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 38 8635K 8763K 166960K 9922 0 kqueue 14 22K 28K 166960K 37 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 44 0 41 1 0 1 1 0 8 0 rtentry 136 95 0 1 4 0 4 4 0 8 0 unpcb 144 66 0 51 1 0 1 1 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 23 0 19 1 0 1 1 0 8 0 arp 96 10 0 0 1 0 1 1 0 8 0 inpcb 328 154 0 147 8 1 7 7 0 8 6 nd6 112 16 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 4 0 3 1 0 1 1 0 8 0 pfrule 1344 1 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 436 0 0 28 0 28 28 0 8 0 art_table 40 437 0 0 5 0 5 5 0 8 0 art_node 32 95 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semapl 112 6 0 1 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1673 0 168 95 0 95 95 0 8 0 ffsino 256 1673 0 168 95 0 95 95 0 8 0 nchpl 144 1972 0 289 63 0 63 63 0 8 0 uvmvnodes 80 1846 0 0 38 0 38 38 0 8 0 vnodes 216 1846 0 0 103 0 103 103 0 8 0 namei 1024 6076 0 6074 2 1 1 2 0 8 0 kstatmem 264 26 0 2 2 0 2 2 0 8 0 scxspl 216 7228 0 7228 15 7 8 8 1 8 8 plimitpl 152 43 0 26 1 0 1 1 0 8 0 sigapl 424 479 0 437 6 1 5 6 0 8 0 knotepl 120 5080 0 5030 10 0 10 10 0 8 7 kqueuepl 184 49 0 38 1 0 1 1 0 8 0 pipepl 304 105 0 78 3 0 3 3 0 8 0 fdescpl 448 466 0 437 5 1 4 5 0 8 0 filepl 120 1964 0 1712 12 0 12 12 0 8 4 lockfpl 104 86 0 44 2 0 2 2 0 8 0 lockfspl 48 24 0 21 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 29 0 13 1 0 1 1 0 8 0 ucredpl 104 213 0 201 1 0 1 1 0 8 0 zombiepl 144 482 0 481 2 1 1 1 0 8 0 processpl 1152 479 0 437 4 0 4 4 0 8 0 procpl 664 619 0 566 6 0 6 6 0 8 1 sockpl 552 266 0 241 8 0 8 8 0 8 6 mcl64k 65536 9 0 9 2 1 1 1 0 8 1 mcl8k 8192 4 0 4 1 1 0 1 0 8 0 mcl4k 4096 2523 0 2470 15 7 8 15 0 8 1 mcl2k 2048 244 0 243 1 0 1 1 0 8 0 mtagpl 96 4 0 4 1 1 0 1 0 8 0 mbufpl 256 4598 0 4433 21 9 12 18 0 8 0 bufpl 280 3042 0 119 209 0 209 209 0 8 0 anonpl 24 102841 0 97665 34 0 34 34 0 187 1 amapchunkpl 152 10228 0 9652 27 0 27 27 0 158 2 amappl16 200 1857 0 1829 6 3 3 5 0 8 0 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 103 0 93 1 0 1 1 0 8 0 amappl13 176 24 0 24 1 1 0 1 0 8 0 amappl12 168 1074 0 1045 3 1 2 3 0 8 0 amappl11 160 80 0 69 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 250 0 250 1 1 0 1 0 8 0 amappl8 136 18 0 17 1 0 1 1 0 8 0 amappl7 128 99 0 89 1 0 1 1 0 8 0 amappl6 120 175 0 172 1 0 1 1 0 8 0 amappl5 112 111 0 104 1 0 1 1 0 8 0 amappl4 104 265 0 248 1 0 1 1 0 8 0 amappl3 96 1563 0 1478 3 0 3 3 0 8 0 amappl2 88 687 0 618 2 0 2 2 0 8 0 amappl1 80 8208 0 7658 13 1 12 13 0 8 0 amappl 88 2861 0 2708 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 128 253 0 253 1 1 0 1 0 8 0 dma64 64 7 0 7 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 466 0 437 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 466 0 437 1 0 1 1 0 8 0 vmmpekpl 168 5279 0 5240 2 0 2 2 0 8 0 vmmpepl 168 36105 0 34274 84 0 84 84 0 357 1 vmsppl 368 465 0 437 4 1 3 4 0 8 0 rwobjpl 40 14568 0 11891 28 0 28 28 0 8 0 pdppl 4096 939 0 874 95 28 67 81 0 8 2 pvpl 32 232046 0 220432 106 1 105 105 0 265 2 pmappl 216 465 0 437 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 373 0 52 11 1 10 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80003691a020,ffffffffffffffff,0,a0c7df9f,fffffd806f5127f0,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003691a020,ffffffffffffffff,0,a0c7df9f,fffffd806f5127f0,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806f5127f0,4,20c7df9f,0,ffff80003691a020) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806f5127f0,4,20c7df9f,0,ffff80003691a020) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003691a020,ffff80003c967e60,ffff80003c967db0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c967e60) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c967e60) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77fbcb92f10, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80003691a020,ffffffffffffffff,0,a0c7df9f,fffffd806f5127f0,fffffd8007bfb888) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003691a020,ffffffffffffffff,0,a0c7df9f,fffffd806f5127f0,fffffd8007bfb888) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806f5127f0,4,20c7df9f,0,ffff80003691a020) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806f5127f0,4,20c7df9f,0,ffff80003691a020) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003691a020,ffff80003c967e60,ffff80003c967db0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c967e60) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c967e60) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77fbcb92f10, count: -5