From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 69FB7E8FDB4 for ; Tue, 3 Oct 2023 20:29:17 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qnm0m-0006Xm-Ed; Tue, 03 Oct 2023 16:28:56 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qnm0j-0006X9-5Q for qemu-devel@nongnu.org; Tue, 03 Oct 2023 16:28:54 -0400 Received: from mail-pl1-x636.google.com ([2607:f8b0:4864:20::636]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qnm0f-0001Xt-T6 for qemu-devel@nongnu.org; Tue, 03 Oct 2023 16:28:52 -0400 Received: by mail-pl1-x636.google.com with SMTP id d9443c01a7336-1c1e3a4a06fso10462675ad.3 for ; Tue, 03 Oct 2023 13:28:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1696364927; x=1696969727; darn=nongnu.org; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=0e4/JO57YQImFLHZPXmeKqU9ZF/znrSmUlXSYTqB6DQ=; b=s+giaCL/ESrvpuZM/J4cI7BJoYvM/yDOeMeQ2+hiYvzOcJUcOm/42/P0N9kstZdHbp 6DqVkVE0D0BeAZZy9JfQ1DCEzydlmKDg5WDs/iy48c8VU2q59dgqk7q5Nrou92gDbs1U 4As9xLuMCVWnJ3Y17SQO4aH9+m+MTghncgpjiWIG0K/mVwLVYh9vztE81xk8Shk1rOfl w2i1o5KUBTOTub8Tr6X9pCtxJx3yZ9ObXHwesoYBblkZX4ZXBAAst//UP0cfyQfwD/W6 HXTi705Gz6TF8HwBj6aZFbPNHcTLjtpU9uKQAEYAO563GnozI7/wEIpWpKnOxUD0C+aD NiEg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696364927; x=1696969727; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=0e4/JO57YQImFLHZPXmeKqU9ZF/znrSmUlXSYTqB6DQ=; b=Arw9axg2fqW9fTSjFqXkyLWCn5jK3If0EmzeZcKemspVUHKHoNuEHhnSNssWUfAKzv ksU7qgHI0VAaC047rjxtJW+6EKYnfZWpEJfe2bd2RIYzR8e/xJfuOJ3F5QdCOp5dvgcR 23JdHpqR3jV3i/s8Kub8LLgBf2jqb3RvIiCzcswmGBGSUje/PyvxWmrG0OsNjieBPKma rJmrK6f4iXIv24jzuhn4uzNwivWvngwaQeCpbEKhQ0rKA+tFUyPW5R/G1tDiTsqjG75S 1f6CBaSQXLzNgpuOBkvVcqrfjYTui72mF+ldMN4Gvt6fwlc381KsbfMSuzvqrt9NBwqG 7+CA== X-Gm-Message-State: AOJu0YxDj9QJv4eMbIcSt4rQ0NpC4DbsXW/dRDkB0pqT2uG6XFY//DYW Uk2CE2hdvCdHGtrMbt02es/Nm/0LzpFYQ6xv5ig= X-Google-Smtp-Source: AGHT+IGlYpw/julF/9EX1f0LgJOddZmdBIRdyvxHsO8rggRk42RH6DzIygimTyolRcAFO2Do6MJOcQ== X-Received: by 2002:a17:902:ec8d:b0:1c3:4210:623f with SMTP id x13-20020a170902ec8d00b001c34210623fmr721821plg.13.1696364927620; Tue, 03 Oct 2023 13:28:47 -0700 (PDT) Received: from [192.168.0.4] ([71.212.149.95]) by smtp.gmail.com with ESMTPSA id 12-20020a170902c20c00b001b016313b1dsm2026664pll.86.2023.10.03.13.28.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 03 Oct 2023 13:28:47 -0700 (PDT) Message-ID: Date: Tue, 3 Oct 2023 13:28:45 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Subject: Re: [PATCH v2] mips: fix abort on integer overflow Content-Language: en-US To: Mikulas Patocka Cc: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , Jiaxun Yang , Aurelien Jarno , Aleksandar Rikalo , Huacai Chen , qemu-devel@nongnu.org References: <6148083e-ba07-798c-4cc3-6cf29236c53c@linaro.org> <3ef979a8-3ee1-eb2d-71f7-d788ff88dd11@redhat.com> From: Richard Henderson In-Reply-To: <3ef979a8-3ee1-eb2d-71f7-d788ff88dd11@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::636; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x636.google.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-1.09, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 9/28/23 12:55, Mikulas Patocka wrote: > > > On Thu, 28 Sep 2023, Richard Henderson wrote: > >> Just call force_sig_fault directly. >> >> >> r~ > > OK. Here I'm resending it. > > Mikulas > > > > From: Mikulas Patocka > > Qemu mips userspace emulation crashes with "qemu: unhandled CPU exception > 0x15 - aborting" when one of the integer arithmetic instructions detects > an overflow. > > This patch fixes it so that it delivers SIGFPE with FPE_INTOVF instead. > > Signed-off-by: Mikulas Patocka > Cc: qemu-stable@nongnu.org Reviewed-by: Richard Henderson and queued to linux-user-next. r~