login: uvm_fault(0xfffff9806d191740, 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 *309713 88584 0 0x1000 0x4080000 0 syz-executor ktrops(ffff80002f0aefb0,ffffffffffffffff,0,a0c7fd9f,fffff9806d149e80,fffff98007ffd5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002f0aefb0,ffffffffffffffff,0,a0c7fd9f,fffff9806d149e80,fffff98007ffd5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff9806d149e80,4,20c7fd9f,0,ffff80002f0aefb0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff9806d149e80,4,20c7fd9f,0,ffff80002f0aefb0) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002f0aefb0,ffff8000380c3700,ffff8000380c3650) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff8000380c3700) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000380c3700) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1de746e54d0, 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(0xfffff9806d191740, 0xf, 0, 1) -> e ddb> show kasan No such command ddb> trace ktrops(ffff80002f0aefb0,ffffffffffffffff,0,a0c7fd9f,fffff9806d149e80,fffff98007ffd5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002f0aefb0,ffffffffffffffff,0,a0c7fd9f,fffff9806d149e80,fffff98007ffd5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff9806d149e80,4,20c7fd9f,0,ffff80002f0aefb0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff9806d149e80,4,20c7fd9f,0,ffff80002f0aefb0) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002f0aefb0,ffff8000380c3700,ffff8000380c3650) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff8000380c3700) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000380c3700) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1de746e54d0, count: -5 ddb> show registers rdi 0xffff80002f0aefb0 rsi 0xffffffffffffffff rbp 0xffff8000380c3420 rbx 0xfffff98007ffd5b0 rdx 0 rcx 0xa0c7fd9f rax 0xffff80002f0aefb0 r8 0xfffff9806d149e80 r9 0xfffff98007ffd5b0 r10 0x587f8779ae42f441 r11 0x22e1aedfbb1d27d6 r12 0xffff80002f0aefb0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7fd9f rip 0xffffffff833e1ed8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000380c33a0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=309713 pid=88584 tcnt=2 stat=onproc flags process=1000 proc=4080000 runpri=17, usrpri=78, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a736d00 scnt=1 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002f0ae020,0xffffffff83a01a88 process=0xffff8000380db618 user=0xffff8000380be000, vmspace=0xfffff9806d191740 estcpu=28, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 88584 385253 41513 0 3 0x1000 0x2000 suspend syz-executor *88584 309713 41513 0 7 0x1000 0x4080000 syz-executor 53250 408198 31647 0 3 0x1000 0x2000 suspend syz-executor 53250 161235 31647 0 2 0x1000 0x4080000 syz-executor 53250 119978 31647 0 3 0x1000 0x4080000 inode syz-executor 48162 423242 80278 0 3 0x1000 0x2000 suspend syz-executor 48162 511575 80278 0 2 0x1000 0x4080000 syz-executor 95307 460190 66480 0 3 0x1000 0x2000 suspend syz-executor 95307 440734 66480 0 2 0x1000 0x4080000 syz-executor 95307 306729 66480 0 3 0x1000 0x4080000 inode syz-executor 14960 187129 67907 0 3 0x2 0 biowait syz-executor 66480 495796 67907 0 3 0x2 0x80 nanoslp syz-executor 31647 442685 67907 0 3 0x2 0x80 nanoslp syz-executor 80278 215802 67907 0 3 0x2 0x80 nanoslp syz-executor 34118 381960 1 0 3 0x100003 0x80 ttyin getty 12516 73945 67907 0 2 0x2 0 syz-executor 5285 30503 0 0 3 0x14000 0x200 acct acct 41513 150293 67907 0 3 0x2 0x80 nanoslp syz-executor 46580 326604 67907 0 3 0x2 0x80 wait syz-executor 3125 249675 67907 0 2 0x2 0 syz-executor 67907 439103 1 0 3 0x2 0x80 kqread syz-executor 89193 29456 0 0 3 0x14000 0x200 bored smr 46285 109703 0 0 3 0x14000 0x200 pgzero zerothread 71727 29936 0 0 3 0x14000 0x200 aiodoned aiodoned 82267 164236 0 0 3 0x14000 0x200 syncer update 64022 322862 0 0 3 0x14000 0x200 cleaner cleaner 82314 168771 0 0 3 0x14000 0x200 reaper reaper 21497 242596 0 0 3 0x14000 0x200 pgdaemon pagedaemon 97829 147147 0 0 3 0x14000 0x200 bored viomb 48160 360009 0 0 3 0x14000 0x40000200 acpi0 acpi0 41619 269706 0 0 3 0x14000 0x200 bored softnet0 90436 209637 0 0 3 0x14000 0x200 bored systqmp 61436 166532 0 0 3 0x14000 0x200 bored systq 83789 121614 0 0 2 0x14000 0x40000200 softclock 86614 90055 0 0 3 0x14000 0x40000200 idle0 1 408709 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb> show all locks No such command ddb>