From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752709Ab1HOTyB (ORCPT ); Mon, 15 Aug 2011 15:54:01 -0400 Received: from smtp-out.google.com ([216.239.44.51]:55467 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751456Ab1HOTyA (ORCPT ); Mon, 15 Aug 2011 15:54:00 -0400 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=dkim-signature:date:from:x-x-sender:to:cc:subject: in-reply-to:message-id:references:user-agent:mime-version:content-type:x-system-of-record; b=ad0RmN2mp2N/3FUa0Nqnx/+svUL8m0G/AyoT8t7h2Wq7z6P62hSttmiFhZ2nHkzLW 7tKDUL60+8/ZXgYNJq4PQ== Date: Mon, 15 Aug 2011 12:53:14 -0700 (PDT) From: Hugh Dickins X-X-Sender: hugh@sister.anvils To: Justin Piszcz cc: linux-kernel@vger.kernel.org Subject: Re: kernel 3.0: BUG: soft lockup: find_get_pages+0x51/0x110 In-Reply-To: Message-ID: References: User-Agent: Alpine 2.00 (LSU 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-System-Of-Record: true Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 15 Aug 2011, Justin Piszcz wrote: > On Mon, 15 Aug 2011, Hugh Dickins wrote: > > > > Does it always hit somewhere in find_get_pages(), or does the loop span > > wider than that? > Per: http://comments.gmane.org/gmane.linux.kernel/1178570 You've cut the RIP line out of that report, so I cannot see if it's also in find_get_pages() or not. I suspect that it is, but nice to see confirmation. Ah, I missed the "(Continue reading)" button, which reveals "Full output here": that shows more, and indeed, RIP is at find_get_pages+0x46. Interesting, but I don't know what's going on here. Hugh