From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from s3.sipsolutions.net ([5.9.151.49]:50136 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753120AbcISJiP (ORCPT ); Mon, 19 Sep 2016 05:38:15 -0400 Message-ID: <1474277889.4469.24.camel@sipsolutions.net> (sfid-20160919_113821_033868_CF1F749A) Subject: Re: [v2 PATCH 0/2] rhashtable: rhashtable with duplicate objects From: Johannes Berg To: Herbert Xu Cc: "David S. Miller" , netdev@vger.kernel.org, linux-wireless@vger.kernel.org, Thomas Graf , tom@herbertland.com, Ben Greear Date: Mon, 19 Sep 2016 11:38:09 +0200 In-Reply-To: <20160919093434.GA12378@gondor.apana.org.au> (sfid-20160919_113440_719977_971CE718) References: <20160804071846.GA773@gondor.apana.org.au> <20160804074546.GA996@gondor.apana.org.au> <1470377813.2977.14.camel@sipsolutions.net> <20160805104858.GA9297@gondor.apana.org.au> <1470394233.2977.37.camel@sipsolutions.net> <20160918135030.GA7062@gondor.apana.org.au> <20160919084056.GA11875@gondor.apana.org.au> <1474276530.4469.16.camel@sipsolutions.net> <20160919091721.GA12235@gondor.apana.org.au> <1474277244.4469.21.camel@sipsolutions.net> <20160919093434.GA12378@gondor.apana.org.au> (sfid-20160919_113440_719977_971CE718) Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, 2016-09-19 at 17:34 +0800, Herbert Xu wrote: > On Mon, Sep 19, 2016 at 11:27:24AM +0200, Johannes Berg wrote: > > > > > > I have a feeling there's a bug with ht->nelems, since the crash is > > always in the grow worker, but I haven't quite put my finger on it > > yet. > > Can you show me a stack trace? Oops, just deleted the old ones to reproduce with some debug printks :) It's always while trying to grow a table from the worker; it kills processes, but eventually no process are left and the kernel panics. I'll send you a trace when I have one again - I'm running a new reproduction now. johannes