Re: Filter design for nsmux

[Sergiu Ivanov]

Hello,

I'm very much sorry for the big gap in my activity: I had to devote a
large amount of time to a course project...

On Fri, May 1, 2009 at 10:45 PM, Sergiu Ivanov
<unlimitedscolobb@gmail.com> wrote:
>> However, now that you mention it, I seriously wonder whether this isn't
>> really what we should do. As reopening with O_NOTRANS has no meaning so
>> far, I guess it wouldn't break anything if we overloaded it with the
>> "obtain underlying node" operation. And it actually makes some sense
>> semantically -- it wouldn't be too ugly a hack I think...
>
> I'm afraid I must bring bad news: when I try to reopen the port to an
> nsmux node with dir_lookup, control does not get inside
> netfs_S_dir_lookup... So, we will probably have to add the new RPC
> anyway...

antrik told me to try to step into the dir_lookup call, but gdb does
not want to comply with my desires... I installed hurd-dbg package (as
antrik had recommended), but it didn't help.

However, everything looks to be very much like our supposition:
dir_lookup does not even try to invoke the corresponding RPC and
decides what to do on its own.

Regards,
scolobb