From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D78331D3197 for ; Tue, 19 Nov 2024 18:29:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732040954; cv=none; b=nQoALC6FbOj21h9+0ocbZ1XlQQKDmwaa7xTymgDll8w+0SGLJI6v42DwXP/qbOPRMp+XWpUnv6uczVGFRCYsDuOuQi9m5LxOpnOpc4dXEd0zeHBiuLzp8QcZhkwO7pzZ0PmXjXBLCsPvqAYHL/N3mAd6jdHYMJW/iu7Xsc79G1U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732040954; c=relaxed/simple; bh=54y90a6t0IgH6WHbrIlj5CJDsDbfgZJyBuv1P92KfXE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=LN458e93NiHMcZCRZo8btN9KT1F/BjmqtFSijLfPshgg4eVSa+s0xn/jk0WRf6I31Pq3eSn+N22HhTIod7dk6X4akA+gixZZzg+F2xXWAMefc5YGPS3uyL+j6/TNQy3/U41rByh6W6rA1kl1tj8u4CRCJQGQ8WtPPN6PF/5qVYk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dKgg4HRX; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="dKgg4HRX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D2353C4CED0; Tue, 19 Nov 2024 18:29:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1732040954; bh=54y90a6t0IgH6WHbrIlj5CJDsDbfgZJyBuv1P92KfXE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=dKgg4HRXEftZaHnJo19+rjhQjlRHiWPlvqKQweIjMzuYE4MZsIBiSxmb2mpildXDR OIe3yd8l+N5AJzZq+QeuOuWrGJ/zUSbv9K8g6Lhjj/gRQ+EIX/gv11BPsQF6HC4ObG 5tgyRv70uUSZu8p6ejSc+vGcutkZwvLsdElyMdFlzYQlnRT5IJCY0DvOkEZJ+oB+dV SHQRKGqABjirnfbAb7kp8aFrpeI79WvBtWS9BZ5m93vBKljxmdpwu4RvrMqrpC2QPm 8hYGFdkNQyy95W6x+t/yOo9spW2mXI25Q1SN9C4FiVzTPYdAb62DLVH5KErbfKzFIG +Z575Z83JQhVw== Date: Tue, 19 Nov 2024 15:29:10 -0300 From: Arnaldo Carvalho de Melo To: Alan Maguire Cc: Jiri Olsa , Clark Williams , Kate Carcia , Arnaldo Carvalho de Melo , Matthias Schwarzott , Andrii Nakryiko , Eduard Zingerman , Song Liu , Yonghong Song , dwarves@vger.kernel.org Subject: Re: [PATCH 5/5] core, libctf: Check if constructor arguments are NULL before using them Message-ID: References: <20241118204146.772762-1-acme@kernel.org> <20241118204146.772762-6-acme@kernel.org> <4b465bfc-8214-41ab-8b6d-bbdf7421e19b@oracle.com> Precedence: bulk X-Mailing-List: dwarves@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4b465bfc-8214-41ab-8b6d-bbdf7421e19b@oracle.com> On Tue, Nov 19, 2024 at 05:02:39PM +0000, Alan Maguire wrote: > On 18/11/2024 20:41, Arnaldo Carvalho de Melo wrote: > > From: Arnaldo Carvalho de Melo > > > > # pahole > > Segmentation fault (core dumped) > > # > > > > Now we have: > > > > # ls -la bla > > ls: cannot access 'bla': No such file or directory > > # export PAHOLE_VMLINUX_BTF_FILENAME=bla > > # pahole > > pahole: couldn't find any debug information on this system. > > # pahole list_head > > pahole: couldn't find any debug information on this system. > > # pahole -F btf list_head > > pahole: couldn't find any btf debug information on this system. > > # pahole -F dwarf list_head > > pahole: couldn't find any dwarf debug information on this system. > > # tests/default_vmlinux_btf.sh > > Default BTF on a system without BTF: Ok > > # > > > > Reported-by: Matthias Schwarzott > > Cc: Alan Maguire > > Cc: Andrii Nakryiko > > Cc: Eduard Zingerman > > Cc: Jiri Olsa > > Cc: Song Liu > > Cc: Yonghong Song > > Signed-off-by: Arnaldo Carvalho de Melo > > Reviewed-by: Alan Maguire > Tested-by: Alan Maguire Thanks, added to the cset, - Arnaldo