Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756442AbYFRVPZ (ORCPT ); Wed, 18 Jun 2008 17:15:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754006AbYFRVPJ (ORCPT ); Wed, 18 Jun 2008 17:15:09 -0400 Received: from rv-out-0506.google.com ([209.85.198.230]:24861 "EHLO rv-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752714AbYFRVPI (ORCPT ); Wed, 18 Jun 2008 17:15:08 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type :content-transfer-encoding:content-disposition; b=AgKWFmk9NpSHqrBbaU8iBmdu8iBmnR1eiLzi/ozJRU9bmuJlAhHauY7XBiUGJ+G8ch LmBKcN5FUTLJpKUeYekSWPfndkn3se6OWrc6Or4s+NA+fYNeWZi3wiH+/+A3clq9iEJR 0nHuojuJK0xw3Qg7Z4mhVm2VdivFNxVBsFlAg= Message-ID: <48f7fe350806181415l4eba61b3i1d206de03147575e@mail.gmail.com> Date: Wed, 18 Jun 2008 17:15:08 -0400 From: "Ryan Hope" To: linux-mm@vger.kernel.org, LKML Subject: [BUG] Lockless patches cause hardlock under heavy IO MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1427 Lines: 36 I applied the following patches from 2.6-26-rc5-mm3 to 2.6.26-rc6 and they caused a hardlock under heavy IO: x86-implement-pte_special.patch mm-introduce-get_user_pages_fast.patch mm-introduce-get_user_pages_fast-fix.patch mm-introduce-get_user_pages_fast-checkpatch-fixes.patch x86-lockless-get_user_pages_fast.patch x86-lockless-get_user_pages_fast-checkpatch-fixes.patch x86-lockless-get_user_pages_fast-fix.patch x86-lockless-get_user_pages_fast-fix-2.patch x86-lockless-get_user_pages_fast-fix-2-fix-fix.patch x86-lockless-get_user_pages_fast-fix-warning.patch dio-use-get_user_pages_fast.patch splice-use-get_user_pages_fast.patch x86-support-1gb-hugepages-with-get_user_pages_lockless.patch # mm-readahead-scan-lockless.patch radix-tree-add-gang_lookup_slot-gang_lookup_slot_tag.patch #mm-speculative-page-references.patch: clameter saw bustage mm-speculative-page-references.patch mm-speculative-page-references-fix.patch mm-speculative-page-references-fix-fix.patch mm-speculative-page-references-hugh-fix3.patch mm-lockless-pagecache.patch mm-spinlock-tree_lock.patch powerpc-implement-pte_special.patch I am on an x86_64. I dont know what other info you need... -Ryan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/