From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from pippin.tausq.org (gandalf.tausq.org [64.81.244.94]) by dsl2.external.hp.com (Postfix) with ESMTP id 07EA0483E for ; Sun, 19 Oct 2003 12:58:40 -0600 (MDT) Date: Sun, 19 Oct 2003 12:03:06 -0700 From: Randolph Chung To: John David Anglin Cc: parisc-linux@lists.parisc-linux.org Subject: Re: [parisc-linux] [patch] handle pagefaults on unaligned access Message-ID: <20031019190306.GG24406@tausq.org> Reply-To: Randolph Chung References: <20031019063825.GE24406@tausq.org> <200310191846.h9JIkxMq027125@hiauly1.hia.nrc.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <200310191846.h9JIkxMq027125@hiauly1.hia.nrc.ca> Sender: parisc-linux-admin@lists.parisc-linux.org Errors-To: parisc-linux-admin@lists.parisc-linux.org List-Help: List-Post: List-Subscribe: , List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: > What's generating the unaligned ldh? This will really kill performance. > GCC shouldn't do this... it was one of the testcases, but i haven't figured out which one yet. it doesn't do this for every testcase... > My system also crashed last night, probably running the gcj testsuite. probably, it crashed my machine 3 times before i figured it out :-) if you do "echo 0 >> /proc/sys/kernel/unaligned-trap" before you run the test then it should SIGBUS when it does this... i'll try to debug this a bit more as well. but we shouldn't crash the kernel in any case :) randolph -- Randolph Chung Debian GNU/Linux Developer, hppa/ia64 ports http://www.tausq.org/