Date: Mon, 27 Aug 2007 11:21:48 +0200 From: Joerg Wallerich <joerg@net.t-labs.tu-berlin.de> To: Olivier Houchard <mlfbsd@cognet.ci0.org> Cc: freebsd-current@freebsd.org Subject: Re: Network problems with sendto() syscall Message-ID: <20070827092148.GA34582@falcon.net.t-labs.tu-berlin.de> In-Reply-To: <20070826122525.GA59924@ci0.org> References: <20070826110841.GA31243@falcon.net.t-labs.tu-berlin.de> <20070826122525.GA59924@ci0.org>
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On Sun, Aug 26, 2007 at 02:25:25PM +0200, Olivier Houchard wrote: > On Sun, Aug 26, 2007 at 01:08:41PM +0200, Joerg Wallerich wrote: > > Hi all, > > > > since moving to 7-CURRENT I have a serious problem with > > the network stack when using the sendto() syscall. > > > > The problem appears as soon as I work with bootpd(8). As > > soon as bootpd tries to answer a BOOTP request, the > > sendto() call fails with EAFNOSUPPORT, I get kernel log > > messages like > > > > 'fxp0: can't handle af18' > > > > and then I can no longer access the IP address I sent the > > BOOTP request from. > > > > The call to sendto() in bootpd seems OK, so I doubt that the > > problem lies with bootpd. The NIC driver seems to be OK as > > well, as the problems appears with three different drivers > > (fxp, nfe, rl). I even get things like > > > > 'kernel: looutput: af=18 unexpected' > > > > in the logs when using bootptest on the local machine. > > > > This problem can be reproduced on my hardware using a > > vanilla installation of the latest snapshot of 7-CURRENT (200708). > > > > > > Does anyone see this behavior besides myself? > > > > Thanks, > > Joerg > > > > Hi Joerg, > > This is a known problem. Until the proper fix is committed, you can use the > attached patch, it should make bootp usable again. > > Regards, > > Olivier Hi Olivier, thanks a bunch! Your patch seems to fix the problem. At least bootpd works again. Thanks, Joerg -- --------------------------------------------------------------- - Joerg Wallerich joerg@net.t-labs.tu-berlin.de - - Technische Universitaet Berlin Phone +49 30 8353 58377 - - Deutsche Telekom Laboratories - ---------------------------------------------------------------
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