uvm_fault(0xfffffd806946d850, 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 *378440 98350 0 0 0x4000000 0 syz-executor.7 ktrops(ffff80002a546020,ffffffffffffffff,0,80000120,fffffd806b1b3108,fffffd807f7d7820) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a546020,ffffffffffffffff,0,80000120,fffffd806b1b3108,fffffd807f7d7820) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd806b1b3108,4,120,0,ffff80002a546020) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806b1b3108,4,120,0,ffff80002a546020) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a546020,ffff80002a661260,ffff80002a6611b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002a661260) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x461d3c1c460, 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(0xfffffd806946d850, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a546020,ffffffffffffffff,0,80000120,fffffd806b1b3108,fffffd807f7d7820) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a546020,ffffffffffffffff,0,80000120,fffffd806b1b3108,fffffd807f7d7820) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd806b1b3108,4,120,0,ffff80002a546020) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806b1b3108,4,120,0,ffff80002a546020) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a546020,ffff80002a661260,ffff80002a6611b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002a661260) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x461d3c1c460, count: -5 ddb> show registers rdi 0xffff80002a546020 rsi 0xffffffffffffffff rbp 0xffff80002a660f80 rbx 0xfffffd807f7d7820 rdx 0 rcx 0x80000120 __kernel_virt_to_phys+0x120 rax 0x1 r8 0xfffffd806b1b3108 r9 0xfffffd807f7d7820 r10 0x4b3728fe415140eb r11 0xce1a922f8faf7c1d r12 0xffff80002a546020 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000120 __kernel_virt_to_phys+0x120 rip 0xffffffff81f2dbc8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a660f00 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor.7) tid=378440 pid=98350 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=0xffff80002a5476e8,0xffffffff8362dc98 process=0xffff80002a4eef30 user=0xffff80002a65c000, vmspace=0xfffffd806946d850 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 98350 5654 40464 0 2 0 syz-executor.7 *98350 378440 40464 0 7 0x4000000 syz-executor.7 48741 379378 55714 0 2 0x2 syz-executor.6 346 260427 55714 0 2 0x2 syz-executor.4 47254 232241 55714 0 3 0x82 nanoslp syz-executor.2 40464 306945 55714 0 3 0x82 nanoslp syz-executor.7 41851 188826 55714 0 2 0x2 syz-executor.5 49764 223134 55714 0 2 0x2 syz-executor.3 93878 85056 55714 0 2 0x2 syz-executor.1 48782 434554 55714 0 2 0x2 syz-executor.0 55714 85674 22319 0 3 0x82 thrsleep syz-execprog 55714 420173 22319 0 3 0x4000082 nanoslp syz-execprog 55714 216208 22319 0 3 0x4000082 wait syz-execprog 55714 53477 22319 0 3 0x4000082 thrsleep syz-execprog 55714 39275 22319 0 3 0x4000082 wait syz-execprog 55714 312042 22319 0 3 0x4000082 wait syz-execprog 55714 476485 22319 0 3 0x4000082 wait syz-execprog 55714 328038 22319 0 3 0x4000082 wait syz-execprog 55714 220662 22319 0 3 0x4000082 thrsleep syz-execprog 55714 64166 22319 0 3 0x4000082 wait syz-execprog 55714 430055 22319 0 3 0x4000082 wait syz-execprog 55714 155190 22319 0 3 0x4000082 wait syz-execprog 55714 328842 22319 0 3 0x4000082 kqread syz-execprog 22319 62999 54988 0 3 0x10008a sigsusp ksh 54988 199822 30855 0 3 0x98 kqread sshd-session 30855 10473 18055 0 3 0x92 kqread sshd-session 38072 254203 1 0 3 0x100083 ttyin getty 18055 437543 1 0 3 0x88 kqread sshd 3082 439333 29295 73 3 0x1100090 kqread syslogd 29295 43738 1 0 3 0x100082 sbwait syslogd 90961 131155 1 0 3 0x100080 kqread resolvd 52837 458605 24447 77 3 0x100092 kqread dhcpleased 39665 457251 24447 77 3 0x100092 kqread dhcpleased 24447 337758 1 0 3 0x80 kqread dhcpleased 62483 300767 0 0 3 0x14200 bored smr 57125 217020 0 0 2 0x14200 zerothread 56529 127490 0 0 3 0x14200 aiodoned aiodoned 22198 206715 0 0 3 0x14200 syncer update 15086 201275 0 0 3 0x14200 cleaner cleaner 36652 481846 0 0 3 0x14200 reaper reaper 77605 212561 0 0 3 0x14200 pgdaemon pagedaemon 76871 7808 0 0 3 0x14200 bored viomb 9351 45671 0 0 3 0x40014200 acpi0 acpi0 50515 145265 0 0 3 0x14200 bored softnet3 74087 464854 0 0 3 0x14200 bored softnet2 64568 177693 0 0 3 0x14200 bored softnet1 35652 213533 0 0 3 0x14200 bored softnet0 92879 11525 0 0 3 0x14200 bored systqmp 61423 168567 0 0 3 0x14200 bored systq 54636 184796 0 0 3 0x40014200 tmoslp softclock 47381 245530 0 0 3 0x40014200 idle0 1 108262 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 10165 11039K 11052K 166960K 11246 0 pcb 17 12K 12K 166960K 17 0 rtable 234 6K 6K 166960K 380 0 pf 30 12K 12K 166960K 33 0 ifaddr 42 7K 7K 166960K 48 0 ifgroup 50 2K 2K 166960K 55 0 counters 30 17K 17K 166960K 31 0 ioctlops 0 0K 2K 166960K 30 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1260 79K 79K 166960K 1276 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 11 37K 77K 166960K 219 0 proc 57 58K 83K 166960K 500 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 99 7K 7K 166960K 110 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 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 406 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 207 72K 74K 166960K 4675 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 33 66K 104K 166960K 1540 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 27 2K 2K 166960K 30 0 temp 1 6860K 6924K 166960K 5115 0 kqueue 13 20K 20K 166960K 46 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 38 0 35 1 0 1 1 0 8 0 rtentry 112 122 0 12 4 0 4 4 0 8 0 unpcb 144 217 0 202 1 0 1 1 0 8 0 syncache 336 9 0 9 1 0 1 1 0 8 1 tcpcb 808 12 0 9 1 0 1 1 0 8 0 arp 88 20 0 2 1 0 1 1 0 8 0 inpcb 336 66 0 60 1 0 1 1 0 8 0 nd6 104 27 0 3 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 501 0 48 29 0 29 29 0 8 0 art_table 32 502 0 48 4 0 4 4 0 8 0 art_node 16 121 0 21 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1751 0 207 97 0 97 97 0 8 0 ffsino 240 1751 0 207 91 0 91 91 0 8 0 nchpl 144 2177 0 399 67 0 67 67 0 8 0 uvmvnodes 80 1760 0 0 36 0 36 36 0 8 0 vnodes 216 1760 0 0 98 0 98 98 0 8 0 namei 1024 8097 0 8094 3 0 3 3 0 8 2 kstatmem 264 24 0 2 2 0 2 2 0 8 0 scxspl 216 9137 0 9137 8 0 8 8 1 8 8 plimitpl 152 58 0 42 1 0 1 1 0 8 0 sigapl 424 560 0 520 6 0 6 6 0 8 0 futexpl 64 499 0 499 1 0 1 1 0 8 1 knotepl 120 8876 0 8797 4 0 4 4 0 8 0 kqueuepl 184 42 0 33 1 0 1 1 0 8 0 pipepl 288 183 0 155 3 0 3 3 0 8 0 fdescpl 432 544 0 521 4 0 4 4 0 8 0 filepl 120 2322 0 2188 5 0 5 5 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 34 0 18 1 0 1 1 0 8 0 pgrppl 48 34 0 18 1 0 1 1 0 8 0 ucredpl 104 111 0 100 1 0 1 1 0 8 0 zombiepl 144 521 0 520 1 0 1 1 0 8 0 processpl 1096 560 0 520 4 0 4 4 0 8 0 procpl 648 660 0 607 6 0 6 6 0 8 0 sockpl 504 321 0 297 4 0 4 4 0 8 1 mcl8k 8192 13 0 13 1 0 1 1 0 8 1 mcl4k 4096 10508 0 10452 29 14 15 26 0 8 7 mcl2k 2048 153 0 153 1 0 1 1 0 8 1 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 15290 0 15152 14 2 12 14 0 8 3 bufpl 280 4449 0 156 307 0 307 307 0 8 0 anonpl 24 308040 0 304119 54 0 54 54 0 187 22 amapchunkpl 152 17362 0 16909 28 0 28 28 0 158 6 amappl16 200 8119 0 8045 5 0 5 5 0 8 0 amappl15 192 19 0 19 1 0 1 1 0 8 1 amappl14 184 227 0 213 2 0 2 2 0 8 1 amappl13 176 22 0 22 1 0 1 1 0 8 1 amappl12 168 1229 0 1204 2 0 2 2 0 8 0 amappl11 160 53 0 43 1 0 1 1 0 8 0 amappl10 152 84 0 73 1 0 1 1 0 8 0 amappl9 144 257 0 257 1 0 1 1 0 8 1 amappl8 136 129 0 107 1 0 1 1 0 8 0 amappl7 128 205 0 187 2 0 2 2 0 8 0 amappl6 120 326 0 322 2 0 2 2 0 8 1 amappl5 112 186 0 177 1 0 1 1 0 8 0 amappl4 104 509 0 490 2 0 2 2 0 8 1 amappl3 96 4652 0 4593 3 0 3 3 0 8 1 amappl2 88 1320 0 1248 4 0 4 4 0 8 1 amappl1 80 14771 0 14236 24 6 18 22 0 8 5 amappl 88 3950 0 3819 5 0 5 5 0 92 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 544 0 521 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 544 0 521 1 0 1 1 0 8 0 vmmpekpl 168 11209 0 11170 2 0 2 2 0 8 0 vmmpepl 168 69056 0 67517 118 0 118 118 0 357 44 vmsppl 352 543 0 521 3 0 3 3 0 8 0 rwobjpl 24 30995 0 28331 20 0 20 20 0 8 2 pdppl 4096 1094 0 1042 114 42 72 72 0 8 20 pvpl 32 655199 0 646161 396 98 298 396 0 265 219 pmappl 216 543 0 521 2 0 2 2 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 396 0 58 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a546020,ffffffffffffffff,0,80000120,fffffd806b1b3108,fffffd807f7d7820) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a546020,ffffffffffffffff,0,80000120,fffffd806b1b3108,fffffd807f7d7820) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd806b1b3108,4,120,0,ffff80002a546020) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806b1b3108,4,120,0,ffff80002a546020) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a546020,ffff80002a661260,ffff80002a6611b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002a661260) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x461d3c1c460, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a546020,ffffffffffffffff,0,80000120,fffffd806b1b3108,fffffd807f7d7820) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a546020,ffffffffffffffff,0,80000120,fffffd806b1b3108,fffffd807f7d7820) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd806b1b3108,4,120,0,ffff80002a546020) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806b1b3108,4,120,0,ffff80002a546020) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a546020,ffff80002a661260,ffff80002a6611b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002a661260) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x461d3c1c460, count: -5