[{"id":1761707,"web_url":"http://patchwork.ozlabs.org/comment/1761707/","msgid":"<3xkKqB2kL5z9t2x@ozlabs.org>","date":"2017-09-01T13:29:57","subject":"Re: powerpc: Fix DAR reporting when alignment handler faults","submitter":{"id":69509,"url":"http://patchwork.ozlabs.org/api/people/69509/","name":"Michael Ellerman","email":"patch-notifications@ellerman.id.au"},"content":"On Thu, 2017-08-24 at 10:49:57 UTC, Michael Ellerman wrote:\n> Anton noticed that if we fault part way through emulating an unaligned\n> instruction, we don't update the DAR to reflect that.\n> \n> The DAR value is eventually reported back to userspace as the address\n> in the SEGV signal, and if userspace is using that value to demand\n> fault then it can be confused by us not setting the value correctly.\n> \n> This patch is ugly as hell, but is intended to be the minimal fix and\n> back ports easily.\n> \n> Signed-off-by: Michael Ellerman \n\nApplied to powerpc next.\n\nhttps://git.kernel.org/powerpc/c/f9effe925039cf54489b5c04e0d400\n\ncheers","headers":{"Return-Path":"","X-Original-To":["patchwork-incoming@ozlabs.org","linuxppc-dev@lists.ozlabs.org"],"Delivered-To":["patchwork-incoming@ozlabs.org","linuxppc-dev@lists.ozlabs.org","linuxppc-dev@ozlabs.org"],"Received":["from lists.ozlabs.org (lists.ozlabs.org [103.22.144.68])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xkLFC2YB1z9rvt\n\tfor ;\n\tFri, 1 Sep 2017 23:49:03 +1000 (AEST)","from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3xkLFC1mXhzDrTn\n\tfor ;\n\tFri, 1 Sep 2017 23:49:03 +1000 (AEST)","from ozlabs.org (bilbo.ozlabs.org [103.22.144.67])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3xkKqC2K7wzDqhM\n\tfor ;\n\tFri, 1 Sep 2017 23:29:59 +1000 (AEST)","by ozlabs.org (Postfix)\n\tid 3xkKqB598Zz9t45; Fri, 1 Sep 2017 23:29:58 +1000 (AEST)","by ozlabs.org (Postfix, from userid 1034)\n\tid 3xkKqB2kL5z9t2x; Fri, 1 Sep 2017 23:29:57 +1000 (AEST)"],"X-powerpc-patch-notification":"thanks","X-powerpc-patch-commit":"f9effe925039cf54489b5c04e0d40073bb3a123d","In-Reply-To":"<1503571797-16885-1-git-send-email-mpe@ellerman.id.au>","To":"Michael Ellerman , linuxppc-dev@ozlabs.org","From":"Michael Ellerman ","Subject":"Re: powerpc: Fix DAR reporting when alignment handler faults","Message-Id":"<3xkKqB2kL5z9t2x@ozlabs.org>","Date":"Fri, 1 Sep 2017 23:29:57 +1000 (AEST)","X-BeenThere":"linuxppc-dev@lists.ozlabs.org","X-Mailman-Version":"2.1.23","Precedence":"list","List-Id":"Linux on PowerPC Developers Mail List\n\t","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Cc":"paulus@samba.org, anton@samba.org","Errors-To":"linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org","Sender":"\"Linuxppc-dev\"\n\t"}}]