From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 3E5B42701DB; Wed, 23 Apr 2025 01:51:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745373110; cv=none; b=AeQczy7dHAcKPdVdH0Cotkb1TlCdJxNwSwoncnQhNtkxDnG5P2fSTA/9apcm2+vFafDiu5GgdtcakEsb0DJ9oZvMqnzooze8R4K1WLYQ+uSlzpvkJe2wyVaq9OfXoUiz/B23rXcQOGniXBW1IHvdWeGW4LT2tg6uP42z2rOL/8k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745373110; c=relaxed/simple; bh=524B77zUmQ8K7a2shf7Mu+7jo//vmdRuMIeZyo4ImCM=; h=Subject:To:Cc:References:From:Message-ID:Date:MIME-Version: In-Reply-To:Content-Type; b=jYITZtkp+7yaIKxwAbG4LhbrUiT0p58JSaKTRJqHRwDbkJKF9WLG2x5AIUlVUa318MObPBQJh+MMPgv36uPBeETjOatg2wXMS5rXDK1HEZS/r30bj5uxbP95fvwxGsU6q8ngVmnBnLVW0rRfh6PcxOgcBhbpjOXKRYwyXGmFmAM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn; spf=pass smtp.mailfrom=loongson.cn; arc=none smtp.client-ip=114.242.206.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [10.20.42.62]) by gateway (Coremail) with SMTP id _____8CxaWpaRwhoIWLEAA--.65011S3; Wed, 23 Apr 2025 09:50:19 +0800 (CST) Received: from [10.20.42.62] (unknown [10.20.42.62]) by front1 (Coremail) with SMTP id qMiowMCxrhtYRwhooO2QAA--.47758S3; Wed, 23 Apr 2025 09:50:18 +0800 (CST) Subject: Re: BUG: bpf test case fails to run on LoongArch To: Tiezhu Yang , Huacai Chen Cc: bpf@vger.kernel.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev References: <32989acf-93ef-b90f-c3ba-2a3c07dee4a3@loongson.cn> <8cd87100-88f3-687d-6704-f4fec0ca48b3@loongson.cn> From: bibo mao Message-ID: Date: Wed, 23 Apr 2025 09:49:13 +0800 User-Agent: Mozilla/5.0 (X11; Linux loongarch64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In-Reply-To: <8cd87100-88f3-687d-6704-f4fec0ca48b3@loongson.cn> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-CM-TRANSID:qMiowMCxrhtYRwhooO2QAA--.47758S3 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBj93XoW7uw1xJry3XF15ZF1ftF4UJrc_yoW8Jw1UpF ZxtryfKw1Yga40qr10qa10yF9YyFsay3y5AryUJ34kGrs5Ar1qqF18Jr1Svr93tryv9rWU A3y0qan0kwnrJFcCm3ZEXasCq-sJn29KB7ZKAUJUUUU8529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUU9Yb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Gr0_Cr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_ GcCE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqjxCEc2xF0cIa020Ex4CE44I27wAqx4 xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_JrI_JrylYx0Ex4A2jsIE14v2 6r1j6r4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvEwIxGrwCYjI0SjxkI62AI1cAE67 vIY487MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMxCIbckI1I0E14v2 6r126r1DMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17 CEb7AF67AKxVWUAVWUtwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF 0xvE2Ix0cI8IcVCY1x0267AKxVWUJVW8JwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIx AIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVWUJVW8JbIYCTnIWIev Ja73UjIFyTuYvjxUrNtxDUUUU On 2025/4/23 上午9:28, Tiezhu Yang wrote: > On 04/21/2025 10:52 AM, bibo mao wrote: >> Hi, >> >> When I run built-in bpf test case with lib/test_bpf.c, >> it reports such error, I do not know whether it is a problem. >> >>  test_bpf: #843 ALU32_RSH_X: all shift values jited:1 239 PASS >>  test_bpf: #844 ALU32_ARSH_X: all shift values jited:1 237 PASS >>  test_bpf: #845 ALU64_LSH_X: all shift values with the same register >>  ------------[ cut here ]------------ >>  kernel BUG at lib/test_bpf.c:794! > > This is a known issue I have ever encountered. > I guess your GCC version is 14.1, this is a bug of GCC, yes, My gcc version is 14.1 > it has been fixed in the higher version, you can update > you GCC version (14.2+). OK, I will update my gcc. And sorry for the noise. Regards Bibo Mao > > $ gcc --version | head -1 > gcc (GCC) 14.2.1 20241104 > $ dmesg -t | grep Summary > test_bpf: Summary: 1053 PASSED, 0 FAILED, [0/1041 JIT'ed] > test_bpf: test_tail_calls: Summary: 10 PASSED, 0 FAILED, [0/10 JIT'ed] > test_bpf: test_skb_segment: Summary: 2 PASSED, 0 FAILED > test_bpf: Summary: 1053 PASSED, 0 FAILED, [1041/1041 JIT'ed] > test_bpf: test_tail_calls: Summary: 10 PASSED, 0 FAILED, [10/10 JIT'ed] > test_bpf: test_skb_segment: Summary: 2 PASSED, 0 FAILED > > Thanks, > Tiezhu >