uvm_fault(0xfffffd8073b348b0, 0x7, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ktrops+0x4e: movq 0x8(%rbx),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND *330256 48741 0 0 0 0 syz-executor670515147 ktrops(ffff80002169c008,ffffffffffffffff,0,80000120,fffffd806c485028,fffffd807f7d7b60) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:700 [inline] ktrops(ffff80002169c008,ffffffffffffffff,0,80000120,fffffd806c485028,fffffd807f7d7b60) at ktrops+0x4e sys/kern/kern_ktrace.c:543 doktrace(fffffd806c485028,4,120,0,ffff80002169c008) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:568 [inline] doktrace(fffffd806c485028,4,120,0,ffff80002169c008) at doktrace+0x524 sys/kern/kern_ktrace.c:490 sys_ktrace(ffff80002169c008,ffff8000216fad20,ffff8000216fad70) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:531 syscall(ffff8000216fadf0) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71a7908219d0, 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(0xfffffd8073b348b0, 0x7, 0, 1) -> e ddb> trace ktrops(ffff80002169c008,ffffffffffffffff,0,80000120,fffffd806c485028,fffffd807f7d7b60) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:700 [inline] ktrops(ffff80002169c008,ffffffffffffffff,0,80000120,fffffd806c485028,fffffd807f7d7b60) at ktrops+0x4e sys/kern/kern_ktrace.c:543 doktrace(fffffd806c485028,4,120,0,ffff80002169c008) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:568 [inline] doktrace(fffffd806c485028,4,120,0,ffff80002169c008) at doktrace+0x524 sys/kern/kern_ktrace.c:490 sys_ktrace(ffff80002169c008,ffff8000216fad20,ffff8000216fad70) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:531 syscall(ffff8000216fadf0) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71a7908219d0, count: -5 ddb> show registers rdi 0xffff80002169c008 rsi 0xffffffffffffffff rbp 0xffff8000216fab10 rbx 0xffffffffffffffff rdx 0 rcx 0x80000120 __kernel_virt_to_phys+0x120 rax 0x1 r8 0xfffffd806c485028 r9 0xfffffd807f7d7b60 r10 0x88c4afc112119d91 r11 0x4413c2e7cd2bbb63 r12 0xffffffffffffffff r13 0xfffffd807f7d7b60 r14 0xffff80002169c008 r15 0x80000120 __kernel_virt_to_phys+0x120 rip 0xffffffff81059a1e ktrops+0x4e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000216faa90 ss 0x10 ktrops+0x4e: movq 0x8(%rbx),%r14 ddb> show proc PROC (syz-executor670515147) tid=330256 pid=48741 tcnt=1 stat=onproc flags process=0 proc=0 runpri=17, usrpri=54, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002169cd50,0xffff80002169b028 process=0xffff8000ffff43f0 user=0xffff8000216f5000, vmspace=0xfffffd8073b348b0 estcpu=33, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 4239 169522 59498 0 2 0 syz-executor670515147 *48741 330256 36599 0 7 0 syz-executor670515147 80909 253294 20771 0 2 0 syz-executor670515147 42294 56232 20771 0 2 0 syz-executor670515147 77915 172969 20771 0 2 0 syz-executor670515147 59498 506551 20771 0 3 0x80 nanoslp syz-executor670515147 36599 50626 20771 0 3 0x80 nanoslp syz-executor670515147 3805 489453 20771 0 2 0 syz-executor670515147 13596 265967 20771 0 2 0 syz-executor670515147 80448 329557 20771 0 2 0 syz-executor670515147 20771 498275 77899 0 3 0x82 nanoslp syz-executor670515147 77899 193150 89890 0 3 0x10008a sigsusp ksh 89890 382914 25263 0 3 0x9a kqread sshd 8275 43838 1 0 3 0x100083 ttyin getty 25263 142562 1 0 3 0x88 kqread sshd 18156 403358 91642 73 3 0x1100090 kqread syslogd 91642 67674 1 0 3 0x100082 netio syslogd 73393 370819 1 0 3 0x100080 kqread resolvd 74119 494606 61764 77 3 0x100092 kqread dhcpleased 32160 461891 61764 77 3 0x100092 kqread dhcpleased 61764 202359 1 0 3 0x80 kqread dhcpleased 15150 97558 0 0 3 0x14200 bored smr 63611 478263 0 0 3 0x14200 pgzero zerothread 77564 402970 0 0 3 0x14200 aiodoned aiodoned 51314 135924 0 0 3 0x14200 syncer update 82060 407563 0 0 3 0x14200 cleaner cleaner 32586 480526 0 0 3 0x14200 reaper reaper 72594 354423 0 0 3 0x14200 pgdaemon pagedaemon 89157 266774 0 0 3 0x14200 bored viomb 22384 255743 0 0 3 0x40014200 acpi0 acpi0 31220 132961 0 0 3 0x14200 bored softnet3 2202 487494 0 0 3 0x14200 bored softnet2 49367 112522 0 0 3 0x14200 bored softnet1 67889 43692 0 0 2 0x14200 softnet0 80943 255715 0 0 3 0x14200 bored systqmp 88944 410618 0 0 3 0x14200 bored systq 66153 211675 0 0 3 0x40014200 bored softclock 20971 479505 0 0 3 0x40014200 idle0 1 204330 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 10139 6382K 6413K 78643K 11217 0 pcb 13 8K 8K 78643K 13 0 rtable 58 1K 2K 78643K 112 0 pf 12 6K 6K 78643K 12 0 ifaddr 11 5K 5K 78643K 11 0 ifgroup 17 1K 1K 78643K 17 0 counters 20 16K 16K 78643K 20 0 ioctlops 0 0K 2K 78643K 21 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1174 73K 74K 78643K 1187 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 1 0K 0K 78643K 1 0 proc 55 58K 59K 78643K 246 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 0K 78643K 11 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 25 122K 122K 78643K 25 0 exec 0 0K 1K 78643K 246 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 112 5K 6K 78643K 2261 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 3 0K 0K 78643K 3 0 temp 1 5896K 5960K 78643K 2868 0 kqueue 11 16K 18K 78643K 24 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 21 0 18 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 144 95 0 82 1 0 1 1 0 8 0 syncache 304 5 0 5 1 0 1 1 0 8 1 tcpqe 32 49 0 49 1 0 1 1 0 8 1 tcpcb 808 8 0 5 1 0 1 1 0 8 0 arp 88 2 0 0 1 0 1 1 0 8 0 inpcb 336 26 0 20 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 96 0 0 6 0 6 6 0 8 0 art_table 32 97 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1494 0 81 89 0 89 89 0 8 0 ffsino 240 1495 0 81 84 0 84 84 0 8 0 nchpl 144 1742 0 161 60 0 60 60 0 8 1 uvmvnodes 80 1504 0 0 31 0 31 31 0 8 0 vnodes 216 1504 0 0 84 0 84 84 0 8 0 namei 1024 4568 0 4565 2 0 2 2 0 8 1 kstatmem 264 6 0 0 1 0 1 1 0 8 0 scxspl 216 5017 0 5017 4 1 3 3 1 8 3 plimitpl 152 16 0 10 1 0 1 1 0 8 0 sigapl 424 351 0 312 6 0 6 6 0 8 0 knotepl 120 3854 0 3825 2 0 2 2 0 8 1 kqueuepl 184 20 0 13 1 0 1 1 0 8 0 pipepl 288 88 0 85 1 0 1 1 0 8 0 fdescpl 432 335 0 312 4 0 4 4 0 8 1 filepl 120 1256 0 1197 2 0 2 2 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 17 0 9 1 0 1 1 0 8 0 pgrppl 48 17 0 9 1 0 1 1 0 8 0 ucredpl 104 66 0 56 1 0 1 1 0 8 0 zombiepl 144 312 0 312 1 0 1 1 0 8 1 processpl 1008 351 0 312 7 1 6 6 0 8 0 procpl 680 351 0 312 4 0 4 4 0 8 0 sockpl 456 142 0 120 4 0 4 4 0 8 1 mcl8k 8192 9 0 9 1 0 1 1 0 8 1 mcl4k 4096 5 0 5 1 0 1 1 0 8 1 mcl2k 2048 11787 0 11740 31 16 15 31 0 8 8 mtagpl 96 4 0 4 1 1 0 1 0 8 0 mbufpl 256 18961 0 18909 16 4 12 16 0 8 8 bufpl 288 2537 0 88 175 0 175 175 0 8 0 anonpl 24 180631 0 178666 24 0 24 24 0 188 12 amapchunkpl 152 8606 0 8401 9 0 9 9 0 158 0 amappl16 200 5089 0 5079 5 0 5 5 0 8 4 amappl15 192 95 0 95 1 0 1 1 0 8 1 amappl14 184 99 0 90 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 0 1 1 0 8 1 amappl12 168 804 0 784 1 0 1 1 0 8 0 amappl11 160 52 0 42 1 0 1 1 0 8 0 amappl10 152 13 0 13 1 0 1 1 0 8 1 amappl9 144 142 0 142 1 0 1 1 0 8 1 amappl8 136 29 0 27 1 0 1 1 0 8 0 amappl7 128 24 0 23 1 0 1 1 0 8 0 amappl6 120 146 0 133 1 0 1 1 0 8 0 amappl5 112 107 0 99 1 0 1 1 0 8 0 amappl4 104 420 0 391 1 0 1 1 0 8 0 amappl3 96 2434 0 2383 2 0 2 2 0 8 0 amappl2 88 464 0 422 2 0 2 2 0 8 0 amappl1 80 9269 0 8800 11 0 11 11 0 8 0 amappl 88 1989 0 1915 2 0 2 2 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 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 335 0 312 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 335 0 312 1 0 1 1 0 8 0 vmmpekpl 168 6855 0 6837 1 0 1 1 0 8 0 vmmpepl 168 35083 0 33935 54 0 54 54 0 357 3 vmsppl 368 334 0 312 3 0 3 3 0 8 0 rwobjpl 24 18933 0 16747 14 0 14 14 0 8 0 pdppl 4096 677 0 624 77 16 61 61 0 8 8 pvpl 32 276870 0 272279 52 0 52 52 0 265 14 pmappl 216 334 0 312 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 499 0 38 14 0 14 14 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002169c008,ffffffffffffffff,0,80000120,fffffd806c485028,fffffd807f7d7b60) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:700 [inline] ktrops(ffff80002169c008,ffffffffffffffff,0,80000120,fffffd806c485028,fffffd807f7d7b60) at ktrops+0x4e sys/kern/kern_ktrace.c:543 doktrace(fffffd806c485028,4,120,0,ffff80002169c008) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:568 [inline] doktrace(fffffd806c485028,4,120,0,ffff80002169c008) at doktrace+0x524 sys/kern/kern_ktrace.c:490 sys_ktrace(ffff80002169c008,ffff8000216fad20,ffff8000216fad70) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:531 syscall(ffff8000216fadf0) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71a7908219d0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002169c008,ffffffffffffffff,0,80000120,fffffd806c485028,fffffd807f7d7b60) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:700 [inline] ktrops(ffff80002169c008,ffffffffffffffff,0,80000120,fffffd806c485028,fffffd807f7d7b60) at ktrops+0x4e sys/kern/kern_ktrace.c:543 doktrace(fffffd806c485028,4,120,0,ffff80002169c008) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:568 [inline] doktrace(fffffd806c485028,4,120,0,ffff80002169c008) at doktrace+0x524 sys/kern/kern_ktrace.c:490 sys_ktrace(ffff80002169c008,ffff8000216fad20,ffff8000216fad70) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:531 syscall(ffff8000216fadf0) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71a7908219d0, count: -5 ddb>