On Wednesday, 7 of November 2007, Heikki Orsila wrote: > On Wed, Nov 07, 2007 at 11:46:21PM +0200, Heikki Orsila wrote: > > After some bisecting, I found that net skge driver broke on > > > > commit 7fb7ac241162dc51ec0f7644d4a97b2855213c32 > > > > My network card is: > > > > 0000:00:0e.0 Ethernet controller: 3Com Corporation 3c940 10/100/1000Base-T > > [Marvell] (rev 12) > > > > Linux cheradenine 2.6.24-rc1-dirty #15 Wed Nov 7 23:39:28 EET 2007 x86_64 > > GNU/Linux > > Sorry, forgot to say what the problem is. Doing > > nc host port < /dev/zero > > on a sending machine (not skge) to an skge machine that is receiving: > > nc -l -p port >/dev/null > > with ~60 MiB/s speed, causes the interface go malfunct. A slow > transfer doesn't cause a problem. > > Also, after some fiddling, I noticed that not changing the register > write order on patch: > > + skge_write32(hw, RB_ADDR(q, RB_END), end); > skge_write32(hw, RB_ADDR(q, RB_WP), start); > skge_write32(hw, RB_ADDR(q, RB_RP), start); > - skge_write32(hw, RB_ADDR(q, RB_END), end); > > fixes the visible effect.. Possibly not the root cause of the problem, > but changing the order back fixes networking here.
Please put all of the relevant information into the bugzilla entry at http://bugzilla.kernel.org/show_bug.cgi?id=9321 Thanks, Rafael - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/