From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-yw0-f198.google.com ([209.85.211.198]:61031 "EHLO mail-yw0-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751674Ab0EOB0S convert rfc822-to-8bit (ORCPT ); Fri, 14 May 2010 21:26:18 -0400 References: <201005141538.43416.br1@einfach.org> <4BED6F19.3040608@gmail.com> <20100514165325.GA28198@tux> <4BED8765.8040307@gmail.com> <67773379-350A-42D4-BEB5-DAC7D8277615@gmail.com> <20100514201339.GB28198@tux> <4638F7CF-1E00-411F-A086-BA30809E00BD@gmail.com> <20100514205253.GC28198@tux> <20100515005201.GH28198@tux> Message-Id: <99B6B8BB-F155-4B15-95AF-C8DF3F5B4382@gmail.com> From: "Justin P. Mattock" To: "Luis R. Rodriguez" In-Reply-To: <20100515005201.GH28198@tux> Content-Type: text/plain; charset=utf-8; format=flowed; delsp=yes Mime-Version: 1.0 (iPhone Mail 7D11) Subject: Re: ath9k: BUG kmalloc-8192: Poison overwritten Date: Fri, 14 May 2010 18:26:33 -0700 Cc: Luis Rodriguez , Bruno Randolf , "linux-wireless@vger.kernel.org" , Linux Kernel Mailing List , Miles Lane Sender: linux-wireless-owner@vger.kernel.org List-ID: Justin P. Mattock On May 14, 2010, at 5:52 PM, "Luis R. Rodriguez" wrote: > On Fri, May 14, 2010 at 03:32:48PM -0700, Justin P. Mattock wrote: >> ATH9K: cachelsz 256 rxbufsize 3904 > > OK I see nothing odd with these values, and I do not see how > these values can make ath_rxbuf_alloc() barf. I'd like to > reproduce this myself at least once, I left iperf running over > night with no rants from SLAB. I should note this should be > reproducible with RX only if it is ath_rxbuf_alloc() to blame > but without a concrete reproducible instructions it is hard > to guess what to do and if this can only come up during RX. > > Can you describe a little more when you have seen this? What > were you doing exactly, for how long? When was the last time > you saw this, what were you doing then? > > Luis This is hard to reproduce(reason for looking a kmemchek). As for what I remember, walked into the las Vegas convention cntr (Hilton), Found the Internet hub, scanned for networks, wicd said it was connected, opened firefox to see the prices, ended up seeing a blank page(at this point didn't look at dmesg(could have already happened)), then switched to another network(did this a few times), Eventually opened firefox(saw the prices, said fuc*k this), then started to read up on i8042.c(cause Linus was pull requesting and I wanted to find out what was going on in that area), then Checked dmesg, and voilà there the bug is. After this rebooted, was hoping this was reproducable for a bisect, but realized it's not the reproducable.. Justin P. Mattock