uvm_fault(0xfffff7806ca33d08, 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 *418495 61452 0 0 0x4000000 0 syz-executor ktrops(ffff800031cb3ca8,ffffffffffffffff,0,80000510,fffff7806ccd8bf8,fffff78007ffd6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff800031cb3ca8,ffffffffffffffff,0,80000510,fffff7806ccd8bf8,fffff78007ffd6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff7806ccd8bf8,4,510,0,ffff800031cb3ca8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff7806ccd8bf8,4,510,0,ffff800031cb3ca8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff800031cb3ca8,ffff80002a771500,ffff80002a771450) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a771500) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a771500) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78f4c4a6a80, 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(0xfffff7806ca33d08, 0xf, 0, 1) -> e ddb> trace ktrops(ffff800031cb3ca8,ffffffffffffffff,0,80000510,fffff7806ccd8bf8,fffff78007ffd6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff800031cb3ca8,ffffffffffffffff,0,80000510,fffff7806ccd8bf8,fffff78007ffd6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff7806ccd8bf8,4,510,0,ffff800031cb3ca8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff7806ccd8bf8,4,510,0,ffff800031cb3ca8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff800031cb3ca8,ffff80002a771500,ffff80002a771450) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a771500) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a771500) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78f4c4a6a80, count: -5 ddb> show registers rdi 0xffff800032cc4000 rsi 0x4aaf __ALIGN_SIZE+0x3aaf rbp 0xffff80002a771220 rbx 0xfffff78007ffd6e8 rdx 0xffff800032cc4000 rcx 0x4aae __ALIGN_SIZE+0x3aae rax 0xffffffff815a6153 ktrops+0x43 r8 0xfffff7806ccd8bf8 r9 0xfffff78007ffd6e8 r10 0x9ca7e8d6b034b992 r11 0x40ce2f549cc35a8 r12 0xffff800031cb3ca8 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000510 __kernel_virt_to_phys+0x510 rip 0xffffffff815a6168 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a7711a0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=418495 pid=61452 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800031cb2d18,0xffff800031cb2030 process=0xffff800031cb6d18 user=0xffff80002a76c000, vmspace=0xfffff7806ca33d08 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 17984 13774 64284 0 2 0 syz-executor 17984 43254 64284 0 2 0x4000000 syz-executor 61452 213430 21091 0 2 0 syz-executor *61452 418495 21091 0 7 0x4000000 syz-executor 59210 176791 14820 0 2 0xc80 syz-executor 59210 230113 14820 0 2 0x4000000 syz-executor 59210 178875 14820 0 3 0x4000080 fsleep syz-executor 59210 134506 14820 0 3 0x4000080 fsleep syz-executor 27469 442597 61325 0 2 0xc80 syz-executor 27469 315082 61325 0 3 0x4000080 sbwait syz-executor 27469 260544 61325 0 3 0x4000080 sbwait syz-executor 72936 441010 1 0 3 0x100083 ttyin getty 31370 756 96712 0 3 0x100082 sbwait arp 96712 188067 91824 0 3 0x10008a sigsusp sh 96647 270348 85273 0 2 0x2 syz-executor 64284 482331 85273 0 2 0xc82 syz-executor 21091 184775 85273 0 2 0xc82 syz-executor 32008 443480 85273 0 2 0x2 syz-executor 14820 478700 85273 0 2 0xc82 syz-executor 61325 183215 85273 0 2 0xc82 syz-executor 91824 86079 85273 0 3 0x82 wait syz-executor 46471 448007 85273 0 2 0x2 syz-executor 85273 379747 1 0 3 0x82 kqread syz-executor 19940 226972 0 0 3 0x14200 bored smr 44039 190423 0 0 2 0x14200 zerothread 10516 246695 0 0 3 0x14200 aiodoned aiodoned 92179 132052 0 0 3 0x14200 syncer update 22478 381459 0 0 3 0x14200 cleaner cleaner 71364 131351 0 0 3 0x14200 reaper reaper 57139 424243 0 0 3 0x14200 pgdaemon pagedaemon 80397 386964 0 0 3 0x14200 bored viomb 22113 200582 0 0 3 0x40014200 acpi0 acpi0 72959 520277 0 0 2 0x14200 softnet0 78455 435610 0 0 3 0x14200 smrbar systqmp 85862 284624 0 0 3 0x14200 bored systq 26837 420911 0 0 2 0x40014200 softclock 96945 508372 0 0 3 0x40014200 idle0 1 349967 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 11033 12118K 12449K 166960K 12313 0 pcb 18 12K 12K 166960K 49 0 rtable 214 6K 6K 166960K 390 0 pf 33 13K 16K 166960K 43 0 ifaddr 38 6K 7K 166960K 43 0 ifgroup 54 2K 2K 166960K 54 0 sysctl 3 1K 9K 166960K 8 0 counters 34 17K 17K 166960K 34 0 ioctlops 0 0K 4K 166960K 72 0 iov 0 0K 12K 166960K 7 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1305 82K 82K 166960K 1485 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 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 15 57K 89K 166960K 262 0 sigio 0 0K 0K 166960K 1 0 proc 19 25K 91K 166960K 512 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 75 0 in_multi 78 5K 6K 166960K 89 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 7 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 384 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 126 84K 162K 166960K 4069 0 UVM aobj 7 4K 4K 166960K 7 0 pinsyscall 19 38K 96K 166960K 1367 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1 0 NDP 12 0K 1K 166960K 26 0 temp 42 9107K 9171K 166960K 8099 0 kqueue 2 4K 22K 166960K 50 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 42 1 0 1 1 0 8 0 rtentry 136 112 0 20 4 0 4 4 0 8 0 unpcb 144 85 0 85 1 0 1 1 0 8 1 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpqe 32 15 0 15 1 0 1 1 0 8 1 tcpcb 736 38 0 37 1 0 1 1 0 8 0 arp 96 19 0 4 1 0 1 1 0 8 0 inpcb 328 168 0 165 2 0 2 2 0 8 1 nd6 112 23 0 4 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 pfrktable 1344 3 0 3 1 0 1 1 0 8 1 pfanchor 1288 1 0 1 1 0 1 1 0 8 1 pftag 88 3 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 0 1 0 1 1 0 8 0 pfrule 1360 6 0 5 1 0 1 1 0 8 0 rttmr 136 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 256 429 0 53 26 0 26 26 0 8 1 art_table 40 430 0 53 5 0 5 5 0 8 0 art_node 32 112 0 27 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 3 1 0 1 1 0 8 0 semapl 72 6 0 1 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1808 0 347 92 0 92 92 0 8 0 ffsino 256 1809 0 347 92 0 92 92 0 8 0 nchpl 144 2214 0 521 64 0 64 64 0 8 0 vnodes 216 1969 0 0 110 0 110 110 0 8 0 namei 1024 6690 0 6687 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 1 1 0 1 1 0 8 1 kstatmem 264 25 0 0 2 0 2 2 0 8 0 scsiplug 72 4 0 4 1 0 1 1 0 8 1 scxspl 216 7102 0 7102 4 0 4 4 1 8 4 plimitpl 152 46 0 35 1 0 1 1 0 8 0 sigapl 424 561 0 530 6 0 6 6 0 8 0 knotepl 120 11295 0 11023 9 0 9 9 0 8 0 kqueuepl 184 53 0 51 1 0 1 1 0 8 0 pipepl 304 130 0 103 3 0 3 3 0 8 0 fdescpl 448 548 0 530 5 0 5 5 0 8 1 filepl 120 2299 0 2140 8 0 8 8 0 8 1 lockfpl 104 163 0 163 1 0 1 1 0 8 1 lockfspl 48 31 0 31 1 0 1 1 0 8 1 sessionpl 144 27 0 24 1 0 1 1 0 8 0 pgrppl 48 36 0 25 1 0 1 1 0 8 0 ucredpl 104 253 0 250 1 0 1 1 0 8 0 zombiepl 144 530 0 530 1 0 1 1 0 8 1 processpl 1152 561 0 530 4 0 4 4 0 8 0 procpl 664 757 0 719 5 0 5 5 0 8 1 sosppl 176 2 0 2 1 0 1 1 0 8 1 sockpl 552 306 0 301 3 0 3 3 0 8 1 mcl64k 65536 10 0 10 1 0 1 1 0 8 1 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl8k 8192 6 0 6 1 0 1 1 0 8 1 mcl4k 4096 2676 0 2610 17 1 16 17 0 8 7 mcl2k 2048 242 0 240 4 0 4 4 0 8 3 mtagpl 96 7 0 5 1 0 1 1 0 8 0 mbufpl 256 5798 0 5640 17 0 17 17 0 8 4 bufpl 272 2507 0 102 161 0 161 161 0 8 0 anonpl 24 99217 0 97723 22 0 22 22 0 186 8 amapchunkpl 152 11646 0 11337 28 0 28 28 0 158 13 amappl16 200 1734 0 1720 6 0 6 6 0 8 3 amappl15 192 6 0 6 1 0 1 1 0 8 1 amappl14 184 411 0 410 1 0 1 1 0 8 0 amappl13 176 119 0 117 1 0 1 1 0 8 0 amappl12 168 784 0 767 2 0 2 2 0 8 0 amappl11 160 6 0 6 1 0 1 1 0 8 1 amappl10 152 77 0 77 1 0 1 1 0 8 1 amappl9 144 290 0 290 1 0 1 1 0 8 1 amappl8 136 93 0 93 1 0 1 1 0 8 1 amappl7 128 144 0 141 1 0 1 1 0 8 0 amappl6 120 148 0 147 1 0 1 1 0 8 0 amappl5 112 105 0 104 1 0 1 1 0 8 0 amappl4 104 261 0 257 1 0 1 1 0 8 0 amappl3 96 2273 0 2203 3 0 3 3 0 8 0 amappl2 88 519 0 510 2 0 2 2 0 8 0 amappl1 80 10674 0 10539 14 0 14 14 0 8 5 amappl 88 3359 0 3252 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 128 253 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 6 0 0 1 0 1 1 0 8 0 uaddrrnd 24 548 0 530 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 548 0 530 1 0 1 1 0 8 0 vmmpekpl 168 6245 0 6218 2 0 2 2 0 8 0 vmmpepl 168 43620 0 42860 83 0 83 83 0 357 43 vmsppl 368 547 0 530 4 0 4 4 0 8 1 rwobjpl 40 15368 0 14927 11 0 11 11 0 8 0 pdppl 4096 1102 0 1060 94 46 48 78 0 8 6 pvpl 32 251483 0 247643 74 0 74 74 0 265 23 pmappl 216 547 0 530 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 526 0 47 15 0 15 15 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff800031cb3ca8,ffffffffffffffff,0,80000510,fffff7806ccd8bf8,fffff78007ffd6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff800031cb3ca8,ffffffffffffffff,0,80000510,fffff7806ccd8bf8,fffff78007ffd6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff7806ccd8bf8,4,510,0,ffff800031cb3ca8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff7806ccd8bf8,4,510,0,ffff800031cb3ca8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff800031cb3ca8,ffff80002a771500,ffff80002a771450) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a771500) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a771500) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78f4c4a6a80, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff800031cb3ca8,ffffffffffffffff,0,80000510,fffff7806ccd8bf8,fffff78007ffd6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff800031cb3ca8,ffffffffffffffff,0,80000510,fffff7806ccd8bf8,fffff78007ffd6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff7806ccd8bf8,4,510,0,ffff800031cb3ca8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff7806ccd8bf8,4,510,0,ffff800031cb3ca8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff800031cb3ca8,ffff80002a771500,ffff80002a771450) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a771500) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a771500) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78f4c4a6a80, count: -5 ddb>