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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
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X-Bugzilla-Component: core
X-Bugzilla-Version: 21.11
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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

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