syzbot

login: uvm_fault(0xfffff7806f3b31f0, 0x98, 0, 1) -> e
fatal page fault in supervisor mode
trap type 6 code 0 rip ffffffff824126a8 cs 8 rflags 10246 cr2 98 cpl 0 rsp ffff80002ef88630
gsbase 0xffff80002999dff0  kgsbase 0x0
panic: trap type 6, code=0, pc=ffffffff824126a8
Starting stack trace...
panic(ffffffff834eb659) at panic+0x1d0 sys/kern/subr_prf.c:229
kerntrap(ffff80002ef88580) at kerntrap+0x30b
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
dovutimens(ffff80003c405250,fffff7805d560a20,ffff80002ef88760) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2690
sys_futimes(ffff80003c405250,ffff80002ef888b0,ffff80002ef88800) at sys_futimes+0x208 sys/kern/vfs_syscalls.c:2732
syscall(ffff80002ef888b0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002ef888b0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7735eaa7bc0, count: 250
End of stack trace.
WARNING: SPL NOT LOWERED ON TRAP EXIT 4 0
Stopped at      proc_trampoline+0xc7:   movl    $0,%gs:0x688
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*450658  52880      0           0          0    1  syz-executor
 228157  30520      0         0x2          0    0  syz-executor
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x7d8df5993e80, count: 14
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}>