From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f181.google.com (mail-pl1-f181.google.com [209.85.214.181]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AFBFA182; Fri, 30 Aug 2024 00:05:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.181 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724976328; cv=none; b=mIhn2K7IRV+sKN2AxYnSS09JrS6vTGgNWqTN/oQnPxjAL4fcWE/e/846IxsOOvDw5rI7GyyQ10V9YHvC1cueVAuFyWxUJ1mJ8vCR1kxrtsMN+fwodJk9JMd9M0vVbi0BHWHjpBA+qEVdL/AqFnAfHqkvGuMspPkEBo/wAV8bRJg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724976328; c=relaxed/simple; bh=sSlFIgz3u9weFyLbXNi6UH3Br+zjOBsoBVkY5w1r8fA=; h=Message-ID:Subject:From:To:Cc:Date:Content-Type:MIME-Version; b=i10iEB+W8DAEMznIaDwD7h8IEaoGoPCGKWXdR5BNZuJ8Ynp1jLJKUq7TFLn1sV+DsQczYJvE7Atyd1LI3P27281+VoYh772wZbIqbKPwWjw7/lrX7wG80ycCHRqMXOK3ARBgKFc20kgNLt3ojtM4aR8PzpN4DdH9bWzxt23ywes= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=IUHCSUOJ; arc=none smtp.client-ip=209.85.214.181 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="IUHCSUOJ" Received: by mail-pl1-f181.google.com with SMTP id d9443c01a7336-201ed196debso10680675ad.1; Thu, 29 Aug 2024 17:05:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1724976326; x=1725581126; darn=vger.kernel.org; h=mime-version:user-agent:content-transfer-encoding:date:cc:to:from :subject:message-id:from:to:cc:subject:date:message-id:reply-to; bh=sSlFIgz3u9weFyLbXNi6UH3Br+zjOBsoBVkY5w1r8fA=; b=IUHCSUOJhDZorTK0Ly3ZYWWZBdDCsFnVBnkK/SWwleEI0wiUUgcRuNc6nlfyUmC9KM synKEhkiXf9VmPjKkyhSbfnut6v1b3MtN5voMwbuN0/fGzYvaMoroiYE84byvWMOtTDP JotfBCQPAJ6B1un7Qt4XIih+rpBQ/mwlNoDWNkgzjc+5brVLw9spRt+og7jMgzbKn9S6 aPp5esGe7ohoJ8q4hrCNPencwdusms9yLpEC0DF8QChYSz33uYCNFGHE5S6oPFRex5Lx ipzxNqF+KLSHB2TIy276KNLGI3fcDin5eqtUR9LmIrVWyaNsd5qJ14IVYI2O3brTO8Wk m67Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724976326; x=1725581126; h=mime-version:user-agent:content-transfer-encoding:date:cc:to:from :subject:message-id:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=sSlFIgz3u9weFyLbXNi6UH3Br+zjOBsoBVkY5w1r8fA=; b=VNhAX9tjVTtOmVWtnCbONgPZ/tLoI8L43iZmPjfJgjqN/QgpsXkGEz2/+pNV+NYWeB lJ0BfDgGDyg8eJfog2P4vsnLeXIz6cTYVI0uTEHDMcc5HMgK76i3Y3/8Zg0NHAciuV5n KpKIXVfXy+MqPICt0oeP6L77nkVihvYJVd/pfNFJo8DXwlteRFzeARuiRG4xCyz/enGO JIFarKfInDgpMX4sxUo+tLBxsvjYEsyswdBgNGfgMTVt830QlywODvhLPRKqQlpFHhHi IvKqL7slIIpx3vZd1K5RzdOIxoPbInzs7zlm9oEspdS9VUdBTBnQsRi0/6Xn3zXqPscJ Et5A== X-Forwarded-Encrypted: i=1; AJvYcCU6FNmDKRRbcFOvl3FAcdwm3xOgLv7RB/ibXajKq4NcyTT5332RU1GGRhT8o8idIHCi1I8=@vger.kernel.org, AJvYcCX6FGYPiX9VeLWqG46aprSf7yedgQ9P/46RdkQpRvKKYU4JS2UDqZ4I9jNZInC02FGpW4r8OAUBVg==@vger.kernel.org X-Gm-Message-State: AOJu0Yyr1Yu7fHyaQU9hFO9/JbtEjjl5K6l3VEvXGsFzPen8mdN2bH3X gm76I7tp7QCGgmKHvdsOD3wENcLOsf+bC2mS4Q8z//Fo6QROfU8C X-Google-Smtp-Source: AGHT+IHZHmQ3ZHcF5iIo3Ezo0kM+zarHZ8k5wlyvsVcKqsB+F69XkfM+9B/cufoePpbce1hmkkZqlw== X-Received: by 2002:a17:902:ea07:b0:202:4b99:fd34 with SMTP id d9443c01a7336-2050c380dc6mr46653245ad.14.1724976325882; Thu, 29 Aug 2024 17:05:25 -0700 (PDT) Received: from [192.168.0.235] ([38.34.87.7]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-205152b3196sm16758535ad.38.2024.08.29.17.05.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Aug 2024 17:05:25 -0700 (PDT) Message-ID: <6358db36c5f68b07873a0a5be2d062b1af5ea5f8.camel@gmail.com> Subject: FYI: CI regression on big-endian arch (s390) after recent pahole changes From: Eduard Zingerman To: Arnaldo Carvalho de Melo Cc: alan.maguire@oracle.com, dwarves@vger.kernel.org, bpf@vger.kernel.org, andrii@kernel.org, martin.lau@linux.dev, songliubraving@meta.com Date: Thu, 29 Aug 2024 17:05:20 -0700 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.52.4 (3.52.4-1.fc40) Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Hi Arnaldo, Alan, After recent pahole changes [1] BPF CI fails for s390 [2]. Song Liu identified that there is a mismatch between endianness of BTF in .BTF and .BTF.base sections. I think that the correct fix should be on libbpf side, where btf__distill_base() should inherit endianness from source BTF. If there are any plans for new pahole release, could you please postpone it until current issue is resolved? (I should have a fix for this thing by tomorrow). Best regards, Eduard [1] c7b1f6a29ba1 ("btf_encoder: Add "distilled_base" BTF feature to split B= TF generation") [2] https://github.com/kernel-patches/bpf/actions/runs/10622763027/job/2944= 7973415