Re: Reauthentication implementation flaw due to EINTR

[Carl Fredrik Hammar]

On Tue, Dec 29, 2009 at 10:55:41PM +0100, Samuel Thibault wrote:
> Carl Fredrik Hammar, le Tue 29 Dec 2009 22:48:26 +0100, a écrit :
> > It's still a mystery to me why ext2fs gets an EINTR without auth
> > explicitly returning EINTR...
> 
> AIUI, the RPC gets aborted and ext2fs receives MACH_RCV_PORT_DIED, which
> _hurd_intr_rpc_mach_msg turns into EINTR.

Wait, isn't the receive port in this case the auth port?  This could
be bad...

> BTW, reproducing the bug is really easy:
> 
> while sudo date ; do : ; done

OK, I can use that for the client side.  I don't really have a setup
for testing the auth server though.  Do you use a sub-Hurd or something?

Regards,
  Fredrik