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From: Fujii Masao <[email protected]>
To: [email protected]
Subject: maximum number of backtrace frames logged by backtrace_functions
Date: Wed, 2 Feb 2022 02:04:21 +0900
Message-ID: <[email protected]> (raw)

Hi,

The maximum number of backtrace frames logged by backtrace_functions is 100. Isn't it better to document this information so that users can understand not all backtrace always can be logged? Patch attached.

Regards,

-- 
Fujii Masao
Advanced Computing Technology Center
Research and Development Headquarters
NTT DATA CORPORATION
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 692d8a2a17..a9131b3e46 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -10685,6 +10685,12 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
         be used to debug specific areas of the source code.
        </para>
 
+       <para>
+        Note that the maximum number of backtrace frames logged is 100.
+        If the backtrace is larger than 100, the backtrace frames corresponding
+        to the 100 most recent function calls are logged.
+       </para>
+
        <para>
         Backtrace support is not available on all platforms, and the quality
         of the backtraces depends on compilation options.


Attachments:

  [text/plain] backtrace_functions_doc_v1.patch (736B, 2-backtrace_functions_doc_v1.patch)
  download | inline diff:
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 692d8a2a17..a9131b3e46 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -10685,6 +10685,12 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
         be used to debug specific areas of the source code.
        </para>
 
+       <para>
+        Note that the maximum number of backtrace frames logged is 100.
+        If the backtrace is larger than 100, the backtrace frames corresponding
+        to the 100 most recent function calls are logged.
+       </para>
+
        <para>
         Backtrace support is not available on all platforms, and the quality
         of the backtraces depends on compilation options.

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