From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <dev-bounces@dpdk.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124])
	by smtp.lore.kernel.org (Postfix) with ESMTP id 51AF3C433F5
	for <dpdk-dev@archiver.kernel.org>; Thu, 27 Jan 2022 20:47:42 +0000 (UTC)
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 <dev@dpdk.org>; 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: <bug-929-3@http.bugs.dpdk.org/>
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 <dev.dpdk.org>
List-Unsubscribe: <https://mails.dpdk.org/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://mails.dpdk.org/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <https://mails.dpdk.org/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=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.=