From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757659AbcLOJYw (ORCPT ); Thu, 15 Dec 2016 04:24:52 -0500 Received: from mx2.suse.de ([195.135.220.15]:57760 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754717AbcLOJYt (ORCPT ); Thu, 15 Dec 2016 04:24:49 -0500 From: Andreas Schwab To: Minchan Kim Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, mbrugger@suse.de, linux-mm@kvack.org, Jason Evans Subject: Re: jemalloc testsuite stalls in memset References: <20161214235031.GA2912@bbox> X-Yow: Are we THERE yet? Date: Thu, 15 Dec 2016 10:24:47 +0100 In-Reply-To: <20161214235031.GA2912@bbox> (Minchan Kim's message of "Thu, 15 Dec 2016 08:50:31 +0900") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Dez 15 2016, Minchan Kim wrote: > You mean program itself access the address(ie, 0xffffb7400000) is hang > while access the address from the debugger is OK? Yes. > Can you reproduce it easily? 100% > Did you test it in real machine or qemu on x86? Both real and kvm. > Could you show me how I can reproduce it? Just run make check. > I want to test it in x86 machine, first of all. > Unfortunately, I don't have any aarch64 platform now so maybe I have to > run it on qemu on x86 until I can set up aarch64 platform if it is reproducible > on real machine only. > >> >> The kernel has been configured with transparent hugepages. >> >> CONFIG_TRANSPARENT_HUGEPAGE=y >> CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y >> # CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set >> CONFIG_TRANSPARENT_HUGE_PAGECACHE=y > > What's the exact kernel version? Anything >= your commit. > I don't think it's HUGE_PAGECACHE problem but to narrow down the scope, > could you test it without CONFIG_TRANSPARENT_HUGE_PAGECACHE? That cannot be deselected. Andreas. -- Andreas Schwab, SUSE Labs, schwab@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different."