From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: Regression associated with commit c8628155ece3 - "tcp: reduce out_of_order memory use" Date: Mon, 10 Sep 2012 10:39:26 +0200 Message-ID: <1347266366.1234.1267.camel@edumazet-glaptop> References: <50369925.3050705@lwfinger.net> <1345757200.5904.1890.camel@edumazet-glaptop> <50378B35.80307@lwfinger.net> <20120824.111948.680531915905273128.davem@davemloft.net> <5037A4B0.3080208@lwfinger.net> <1345825095.19483.19.camel@edumazet-glaptop> <1345825432.19483.20.camel@edumazet-glaptop> <5037B2AC.50704@lwfinger.net> <1345830424.19483.69.camel@edumazet-glaptop> <503BB49C.5010402@lwfinger.net> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org, linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, netdev To: Larry Finger Return-path: In-Reply-To: <503BB49C.5010402-tQ5ms3gMjBLk1uMJSBkQmQ@public.gmane.org> Sender: linux-wireless-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: netdev.vger.kernel.org On Mon, 2012-08-27 at 12:55 -0500, Larry Finger wrote: > I have prepared a patch to fix all the unchecked allocations. > > Over the weekend I made some progress. To test the latest vendor driver, I > installed a 32-bit system. Their driver is not compatible with a 64-bit system. > I found that not only did the vendor driver work with secure sites, but so did > the in-kernel version. I now have tcpdump output for the 32-bit case that works, > and the 64-bit case that fails. It seems likely that I missed some 32/64 bit > incompatibility when I did the conversion. > > Thanks for all your help in trying to resolve this issue. > > Larry > > Hi Larry It appears I have a D-Link N300 (DWA-131) nano USB adapter, using staging/rtl8712 driver. I tried many kernel versions (including 3.3) and none seems to work reliably. Sometime, I have some traffic but only for about 50 frames... It might be because my access point is a netgear wndr3800, because I have following warning a bit before the freezes : r8712u: [r8712_got_addbareq_event_callback] mac = 20:4e:7f:5a:cd:30, sea = 80, tid = 0 Thanks -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html