https://sourceforge.net/p/postgres-xc/bugs/488/Recent changes to 488: The use of palloc in gtm/gtm_proxy will cause a crash at some situationenMon, 04 Aug 2014 07:59:48 -0000https://sourceforge.net/p/postgres-xc/bugs/488/?limit=25#9b2b/4b5d<div class="markdown_content"><p>I have merged your code, and it works well. </p></div>peace zoneMon, 04 Aug 2014 07:59:48 -0000https://sourceforge.netfc678d133f1f808aba11a0f4ab027ca87df52910https://sourceforge.net/p/postgres-xc/bugs/488/?limit=25#9b2b<div class="markdown_content"><p>Thanks for the report. ISTM that we should create the memory context before we start processing the config file. As this example shows, set_config_option() may try to palloc memory which will fail if the memory context is not up. I propose attached patch. Please try and let us know.</p></div>Pavan DeolaseeFri, 01 Aug 2014 07:09:52 -0000https://sourceforge.net06f5a83583d3c4f244b0ac4485aa308308be9f4ahttps://sourceforge.net/p/postgres-xc/bugs/488/<div class="markdown_content"><p>reproduce Step:<br /> 1. set the "log_min_messages = DEUBG5" in gtm_proxy.conf -- DEUBG5 not DEBUG5<br /> 2. gtm_proxy -D gtm_proxy.conf</p> <p>stack info:<br /> Program terminated with signal 11, Segmentation fault.</p> <h1 id="0-0x00000000004131d1-in-initstringinfo-str0x7fffffffdde0-at-stringinfoc89">0 0x00000000004131d1 in initStringInfo (str=0x7fffffffdde0) at stringinfo.c:89</h1> <p>89 str-&gt;data = (char *) palloc(size);<br /> Missing separate debuginfos, use: debuginfo-install glibc-2.17-55.el7.x86_64<br /> (gdb) b<br /> Breakpoint 1 at 0x4131d1: file stringinfo.c, line 89.<br /> (gdb) bt</p> <h1 id="0-0x00000000004131d1-in-initstringinfo-str0x7fffffffdde0-at-stringinfoc89_1">0 0x00000000004131d1 in initStringInfo (str=0x7fffffffdde0) at stringinfo.c:89</h1> <h1 id="1-0x00000000004182d1-in-config_enum_get_options-record0x636380-wzxhzdk0-prefix0x42bb59-available-values-suffix0x42bb57">1 0x00000000004182d1 in config_enum_get_options (record=0x636380 &lt;ConfigureNamesEnum&gt;, prefix=0x42bb59 "Available values: ", suffix=0x42bb57 ".",</h1> <p>separator=0x42bb54 ", ") at gtm_opt_handler.c:1853</p> <h1 id="2-0x00000000004196d3-in-set_config_option-name0x63cba0-log_min_messages-value0x63cbc0-deubg5-contextgtmc_startup-sourcegtmc_s_file">2 0x00000000004196d3 in set_config_option (name=0x63cba0 "log_min_messages", value=0x63cbc0 "DEUBG5", context=GTMC_STARTUP, source=GTMC_S_FILE,</h1> <p>changeVal=0 '\000') at gtm_opt_handler.c:2529</p> <h1 id="3-0x0000000000415d4a-in-processconfigfile-contextgtmc_startup-at-gtm_opt_handlerc202">3 0x0000000000415d4a in ProcessConfigFile (context=GTMC_STARTUP) at gtm_opt_handler.c:202</h1> <h1 id="4-0x0000000000417923-in-selectconfigfiles-userdoption0x638140-datapgxcnodesgtm_pxy-progname0x42cba0-gtm_proxy-at-gtm_opt_handlerc1441">4 0x0000000000417923 in SelectConfigFiles (userDoption=0x638140 "/data/pgxc/nodes/gtm_pxy", progname=0x42cba0 "gtm_proxy") at gtm_opt_handler.c:1441</h1> <h1 id="5-0x0000000000421d50-in-main-argc3-argv0x7fffffffe1d8-at-proxy_mainc687">5 0x0000000000421d50 in main (argc=3, argv=0x7fffffffe1d8) at proxy_main.c:687</h1> <p>Apparently the use of palloc causes the core dump, there is no MemoryContext in gtm/gtm_proxy.</p></div>peace zoneThu, 31 Jul 2014 09:05:01 -0000https://sourceforge.net21028c17e248b17837c033f5fa629fcea165b0d9