How do I avoid my anchor program throwing an "Access violation in stack frame"?

Solution 1:

Anchor puts your accounts on the stack by default. But, likely, because your accounts are quite big, or you have a lot of them, you're running of space on the stack.

If you look above in your logs, you might have an error that looks like this:

Stack offset of -4128 exceeded max offset of -4096 by 32 bytes, please minimize large stack variables

To solve this problem, you could try Boxing your account structs, to move them to the heap:

#[derive(Accounts)]
pub struct MyInstruction<'info> {
  // Note the Box<>! 
  pub my_account: Box<Account<'info, MyAccount>>,
}