Subject: Re: Experimental zero-copy for TCP and UDP transmit-side
To: Tomas Svensson <>
From: enami tsugutomo <>
List: current-users
Date: 05/13/2002 12:57:43
Tomas Svensson <> writes:

> lukemftpd can't utilize zero-copy by default? It's not using mmap()
> and it's overwriting it's buffer immediately after write() returns.
> I started to change ftpd into using mmap() but it made the kernel crash
> (only if I used SOSEND_LOAN).

I've modified our ftpd to use mmap() and found a uvm_loan bug.