From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 9A137A034E; Thu, 27 Jan 2022 21:47:41 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 41258427B1; Thu, 27 Jan 2022 21:47:41 +0100 (CET) Received: from inbox.dpdk.org (inbox.dpdk.org [95.142.172.178]) by mails.dpdk.org (Postfix) with ESMTP id EE5A440141 for ; Thu, 27 Jan 2022 21:47:39 +0100 (CET) Received: by inbox.dpdk.org (Postfix, from userid 33) id B76ACA04A9; Thu, 27 Jan 2022 21:47:39 +0100 (CET) From: bugzilla@dpdk.org To: dev@dpdk.org Subject: [Bug 929] rte_dump_stack() is not safe to call from signal handler Date: Thu, 27 Jan 2022 20:47:39 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: DPDK X-Bugzilla-Component: core X-Bugzilla-Version: 21.11 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: stephen@networkplumber.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: Normal X-Bugzilla-Assigned-To: dev@dpdk.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter target_milestone Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All MIME-Version: 1.0 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org https://bugs.dpdk.org/show_bug.cgi?id=3D929 Bug ID: 929 Summary: rte_dump_stack() is not safe to call from signal handler Product: DPDK Version: 21.11 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: Normal Component: core Assignee: dev@dpdk.org Reporter: stephen@networkplumber.org Target Milestone: --- A common scenario is to have a signal handler call rte_dump_stack(). Unfortunately, existing version is not safe in signal handler because it assumes that malloc pool is not corrupted. https://www.gnu.org/software/libc/manual/html_node/Backtraces.html Better alternative is libunwind or libbacktrace --=20 You are receiving this mail because: You are the assignee for the bug.=