uvm_fault(0xffffffff83a9b168, 0xffff800025b22200, 0, 2) -> d kernel: page fault trap, code=2 Stopped at memcpy+0x19: repe movsq (%rsi),%es:(%rdi) TID PID UID PRFLAGS PFLAGS CPU COMMAND memcpy() at memcpy+0x19 ufs_inactive(ffff80002a251a30) at ufs_inactive+0x2e1 sys/ufs/ufs/ufs_inode.c:95 VOP_INACTIVE(fffffd807249f478,ffff80002a233238) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vrele(fffffd807249f478) at vrele+0x129 sys/kern/vfs_subr.c:837 fdfree(ffff80002a233238) at fdfree+0x286 sys/kern/kern_descrip.c:1216 exit1(ffff80002a233238,1,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a233238,ffff80002a251cb0,ffff80002a251c00) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a251cb0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a251cb0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x744642904aa0, count: 6 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xffffffff83a9b168, 0xffff800025b22200, 0, 2) -> d ddb{1}> trace memcpy() at memcpy+0x19 ufs_inactive(ffff80002a251a30) at ufs_inactive+0x2e1 sys/ufs/ufs/ufs_inode.c:95 VOP_INACTIVE(fffffd807249f478,ffff80002a233238) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vrele(fffffd807249f478) at vrele+0x129 sys/kern/vfs_subr.c:837 fdfree(ffff80002a233238) at fdfree+0x286 sys/kern/kern_descrip.c:1216 exit1(ffff80002a233238,1,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a233238,ffff80002a251cb0,ffff80002a251c00) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a251cb0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a251cb0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x744642904aa0, count: -9 ddb{1}> show registers rdi 0xffff800025b22200 rsi 0xfffffd806bfcaf00 rbp 0xffff80002a2519c0 rbx 0xffff800025b22200 rdx 0x100 rcx 0x20 rax 0xffff8000299adff0 r8 0xffffffffffffffff r9 0x32a00 acpi_pdirpa+0x1e871 r10 0x32c88591a7b9272b r11 0xffff800025b22200 r12 0x200 r13 0x2 r14 0 r15 0xfffffd806cd80148 rip 0xffffffff82c9bcb9 memcpy+0x19 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80002a251958 ss 0x10 memcpy+0x19: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor) tid=516254 pid=67072 tcnt=0 stat=onproc flags process=a proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=1 forw=0xffffffffffffffff, list=0xffff8000fffee548,0xffff8000ffffcfa8 process=0xffff80002a38e1c8 user=0xffff80002a24c000, vmspace=0xfffffd806c5747c0 estcpu=36, cpticks=115, pctcpu=1.4, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 97325 493008 76119 0 3 0x2 clonelk ifconfig 76119 399849 13046 0 3 0x10008a sigsusp sh 1849 442931 84948 0 3 0x80 nanoslp syz-executor 1849 327234 84948 0 3 0x4000080 fsleep syz-executor 1849 480485 84948 0 3 0x4000080 pipewr syz-executor 13046 29164 56931 0 3 0x82 wait syz-executor 20248 135342 0 0 3 0x14200 acct acct 76595 299 1 0 3 0x82 nanoslp getty 84948 393772 56931 0 3 0x82 nanoslp syz-executor 48483 227421 56931 0 3 0x82 wait syz-executor 56931 324699 1 0 3 0x82 wait syz-executor 95803 52081 0 0 3 0x14200 bored smr 74600 372920 0 0 2 0x14200 zerothread 23109 419603 0 0 3 0x14200 aiodoned aiodoned 13307 248019 0 0 3 0x14200 syncer update 68560 341464 0 0 3 0x14200 cleaner cleaner 7920 418058 0 0 3 0x14200 reaper reaper 57885 28641 0 0 3 0x14200 pgdaemon pagedaemon 95759 122682 0 0 3 0x14200 bored viomb 52194 396219 0 0 3 0x40014200 acpi0 acpi0 14625 437509 0 0 3 0x40014200 idle1 25807 415732 0 0 3 0x14200 bored softnet1 24327 297189 0 0 3 0x14200 bored softnet0 31611 125711 0 0 3 0x14200 smrbar systqmp 8029 320831 0 0 3 0x14200 bored systq 25809 366188 0 0 3 0x14200 tmoslp softclockmp 54209 493845 0 0 3 0x40014200 tmoslp softclock 52012 124762 0 0 7 0x40014200 idle0 1 247273 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 31611 (systqmp) thread 0xffff8000ffffea60 (125711) shared rwlock systqmp r = 0 (0xffffffff839063c8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11073 12026K 12411K 166960K 13181 0 pcb 17 15K 17K 166960K 260 0 rtable 203 9K 11K 166960K 536 0 pf 32 17K 22K 166960K 105 0 ifaddr 35 6K 8K 166960K 84 0 ifgroup 47 2K 2K 166960K 120 0 sysctl 4 1K 9K 166960K 10 0 counters 66 36K 37K 166960K 132 0 ioctlops 0 0K 4K 166960K 1584 0 iov 0 0K 12K 166960K 21 0 mount 1 1K 1K 166960K 1 0 log 1 0K 0K 166960K 5 0 vnodes 1323 83K 83K 166960K 1861 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 20K 28K 166960K 17 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 98 0 dirhash 12 2K 3K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 12 45K 89K 166960K 689 0 sigio 0 0K 0K 166960K 45 0 proc 28 50K 147K 166960K 702 0 subproc 63 3K 4K 166960K 108 0 NFS srvsock 1 0K