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    <body style="font-family: Arial, FreeSans, Helvetica, sans-serif; font-size: 13px; width: 100%; -webkit-font-smoothing: antialiased; background-color: #f0f0f0">
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                            <tbody>
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                                        <table id="email-title" cellpadding="0" cellspacing="0" border="0" width="100%">
                                            <tbody>
                                                <tr>
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                                                    <td valign="top" style="font-size: 13px">
                                                        <div id="email-title-flavor" class="email-metadata" style="margin: 0; padding: 0 0 4px 0; color: #505050">
                                                            <a href="    https://wiki.asterisk.org/wiki/display/~rnewton " style="color:#326ca6;text-decoration:none;; color: #326ca6; text-decoration: none">Rusty Newton</a> edited the page:
                                                        </div> </td>
                                                </tr>
                                                <tr>
                                                    <td valign="top" style="font-size: 13px"> <h2 id="email-title-heading" style="font-size: 16px; line-height: 20px; min-height: 20px; margin: 0; padding: 0"> <a href="https://wiki.asterisk.org/wiki/display/AST/CLI+commands+useful+for+debugging" style="color: #326ca6; text-decoration: none"> <img class="icon" src="cid:page-icon" alt="" style="border: 0; padding: 0 5px 0 0; text-align: left; vertical-align: middle" /> <strong style="font-size:16px;line-height:20px;vertical-align:top;">CLI commands useful for debugging</strong> </a> </h2> </td>
                                                </tr>
                                            </tbody>
                                        </table>
                                        <div class="email-indent" style="margin: 8px 0 16px 0">
                                            <p class="aui-message info" style="font-size: 13px; margin: 1em 0; padding: 8px; background-color: #e0f0ff; border: 1px solid #9eb6d4"> <b>Comment:</b> added info and example about "core show fd" </p>
                                            <div class="email-diff">
                                                <div id="page-diffs" class="wiki-content">
                                                    <p class="diff-block-target" style="font-size: 13px"> </p>
                                                    <table class="diff-macro bodyless diff-html-changed" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;margin: 5px 0; padding: 0; width: auto;">
                                                        <thead>
                                                            <tr>
                                                                <th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-0" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/toc.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Table of Contents</span></th>
                                                            </tr>
                                                        </thead>
                                                    </table>
                                                    <p style="font-size: 13px"></p>
                                                    <p class="diff-block-context" style="font-size: 13px">Example output on this page is from Asterisk 11.</p>
                                                    <p class="diff-context-placeholder" style="font-size: 13px">...</p>
                                                    <table class="diff-macro diff-block-target" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
                                                        <thead>
                                                            <tr>
                                                                <th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/plugins/servlet/confluence/placeholder/macro-icon?name=expand" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Expand</th>
                                                            </tr>
                                                        </thead>
                                                        <tbody>
                                                            <tr>
                                                                <td class="diff-macro-properties" style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;padding: 0; border: 1px solid #dddddd;; font-size: 13px">
                                                                    <table>
                                                                        <tbody>
                                                                            <tr>
                                                                                <td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px">title</td>
                                                                                <td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px">Example output with DEBUG_THREADS only</td>
                                                                            </tr>
                                                                        </tbody>
                                                                    </table> </td>
                                                            </tr>
                                                        </tbody>
                                                        <tbody>
                                                            <tr>
                                                                <td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px">
                                                                    <table class="diff-macro" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
                                                                        <thead>
                                                                            <tr>
                                                                                <th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/plugins/servlet/confluence/placeholder/macro-icon?name=code" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Code Block</th>
                                                                            </tr>
                                                                        </thead>
                                                                        <tbody>
                                                                            <tr>
                                                                                <td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-removed" id="removed-diff-0" style="font-size: 100%; background-color: #ffe7e7; text-decoration: line-through;">
</span>ubuntu*CLI> core show locks

=======================================================================
=== Currently Held Locks ==============================================
=======================================================================
===
=== <pending> <lock#> (<file>): <lock type> <line num> <function> <lock name> <lock addr> (times locked)
===
=== Thread ID: 0x7f13ea9ed700 (pbx_thread           started at [ 6612] pbx.c ast_pbx_start())
=== ---> Lock #0 (features.c): RDLOCK 3304 ast_rdlock_call_features &features_lock 0x815660 (1)
        asterisk(ast_bt_get_addresses+0xe) [0x4fa57e]
        asterisk(__ast_rwlock_rdlock+0xc3) [0x4f7a93]
        asterisk() [0x4c4639]
        asterisk() [0x4c5378]
        asterisk() [0x4c5841]
        asterisk(ast_bridge_call+0x8ec) [0x4ced2c]
        /usr/lib/asterisk/modules/app_dial.so(+0xbe0c) [0x7f13f7d72e0c]
        /usr/lib/asterisk/modules/app_dial.so(+0xcd96) [0x7f13f7d73d96]
        asterisk(pbx_exec+0x123) [0x526a53]
        asterisk() [0x531381]
        asterisk() [0x536998]
        asterisk() [0x5381eb]
        asterisk() [0x57a384]
        /lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a) [0x7f143ada1e9a]
        /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7f143bed0cbd]
=== -------------------------------------------------------------------
===
=======================================================================
</pre> </td>
                                                                            </tr>
                                                                        </tbody>
                                                                    </table> </td>
                                                            </tr>
                                                        </tbody>
                                                    </table>
                                                    <table class="diff-macro diff-block-target" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
                                                        <thead>
                                                            <tr>
                                                                <th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/plugins/servlet/confluence/placeholder/macro-icon?name=expand" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Expand</th>
                                                            </tr>
                                                        </thead>
                                                        <tbody>
                                                            <tr>
                                                                <td class="diff-macro-properties" style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;padding: 0; border: 1px solid #dddddd;; font-size: 13px">
                                                                    <table>
                                                                        <tbody>
                                                                            <tr>
                                                                                <td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px">title</td>
                                                                                <td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px">Example output with DEBUG_THREADS and BETTER_BACKTRACES</td>
                                                                            </tr>
                                                                        </tbody>
                                                                    </table> </td>
                                                            </tr>
                                                        </tbody>
                                                        <tbody>
                                                            <tr>
                                                                <td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px">
                                                                    <table class="diff-macro" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
                                                                        <thead>
                                                                            <tr>
                                                                                <th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/plugins/servlet/confluence/placeholder/macro-icon?name=code" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Code Block</th>
                                                                            </tr>
                                                                        </thead>
                                                                        <tbody>
                                                                            <tr>
                                                                                <td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-removed" id="removed-diff-1" style="font-size: 100%; background-color: #ffe7e7; text-decoration: line-through;">
</span>ubuntu*CLI> core show locks

=======================================================================
=== Currently Held Locks ==============================================
=======================================================================
===
=== <pending> <lock#> (<file>): <lock type> <line num> <function> <lock name> <lock addr> (times locked)
===
=== Thread ID: 0x7f44b6cda700 (pbx_thread           started at [ 6612] pbx.c ast_pbx_start())
=== ---> Lock #0 (features.c): RDLOCK 3304 ast_rdlock_call_features &features_lock 0x816680 (1)
        main/logger.c:1541 ast_bt_get_addresses() (0x4fa6c0+E)
        main/lock.c:888 __ast_rwlock_rdlock() (0x4f7b20+C3)
        main/features.c:3453 builtin_feature_get_exten()
        main/features.c:3598 feature_interpret_helper()
        main/features.c:3727 feature_interpret()
        main/features.c:4676 ast_bridge_call() (0x4ce590+8EC)
        apps/app_dial.c:3045 dial_exec_full()
        apps/app_dial.c:3129 dial_exec()
        main/pbx.c:1590 pbx_exec() (0x527270+123)
        main/pbx.c:4665 pbx_extension_helper()
        main/pbx.c:6256 __ast_pbx_run()
        main/pbx.c:6554 decrease_call_count()
        main/utils.c:1093 dummy_start()
        :0 start_thread()
        libc.so.6 clone() (0x7f45082eac50+6D)
=== -------------------------------------------------------------------
===
=======================================================================
</pre> </td>
                                                                            </tr>
                                                                        </tbody>
                                                                    </table> </td>
                                                            </tr>
                                                        </tbody>
                                                    </table>
                                                    <p class="diff-context-placeholder" style="font-size: 13px">...</p>
                                                    <table class="diff-macro diff-block-target" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
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                                                                                <td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px">Example command output</td>
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<span class="diff-html-removed" id="removed-diff-2" style="font-size: 100%; background-color: #ffe7e7; text-decoration: line-through;">
</span>ubuntu*CLI> core show taskprocessors

        +----- Processor -----+--- Processed ---+- In Queue -+- Max Depth -+
               app_queue                   8            0            0
   core_event_dispatcher                  29            0            1
           app_voicemail                   0            0            0
                pbx-core                  11            0            0
           ast_msg_queue                   0            0            0
               CCSS core                   0            0            0
           iax2_transmit                   0            0            0
        +---------------------+-----------------+------------+-------------+
        7 taskprocessors
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                                                    <p class="diff-context-placeholder" style="font-size: 13px">...</p>
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                                                                                <td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px">Example command output</td>
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                                                                                <td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-removed" id="removed-diff-3" style="font-size: 100%; background-color: #ffe7e7; text-decoration: line-through;">
</span>ubuntu*CLI> core show threads
0x7f869a7fb700 25102 netconsole           started at [ 1442] asterisk.c listener()
0x7f869a877700 25100 tps_processing_function started at [  471] taskprocessor.c ast_taskprocessor_get()
0x7f869a8f3700 25099 do_monitor           started at [ 5743] chan_unistim.c restart_monitor()
0x7f869a96f700 25098 tps_processing_function started at [  471] taskprocessor.c ast_taskprocessor_get()
0x7f869a9eb700 25097 process_clearcache   started at [ 2267] pbx_dundi.c start_network_thread()
0x7f869aa67700 25096 process_precache     started at [ 2266] pbx_dundi.c start_network_thread()
0x7f869aae3700 25095 network_thread       started at [ 2265] pbx_dundi.c start_network_thread()
0x7f869ab5f700 25094 cleanup              started at [  414] pbx_realtime.c load_module()
0x7f869abdb700 25093 lock_broker          started at [  509] func_lock.c load_module()

... <snip>
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                                                    <h3 id="CLIcommandsusefulfordebugging-%27coreshowfd%27" class="diff-block-target diff-block-context"> <span class="diff-html-added" id="added-diff-0" style="font-size: 100%; background-color: #ddfade;">'core show fd'</span> </h3>
                                                    <p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">This command is not available until you compile Asterisk with </span><a class="confluence-link unresolved" href="#" style="color: #326ca6; text-decoration: none"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">DEBUG_FD_LEAKS</span></a><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> (found under compiler flags in menuselect).</span> </p>
                                                    <p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">Shows file descriptors open by Asterisk.</span> </p>
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                                                                                <td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">newtonr-laptop*CLI> core show fd
Current maxfiles: unlimited
    3         utils.c:2310    (ast_utils_init           ): open("/dev/urandom",0)
    5      asterisk.c:1626    (ast_makesocket           ): socket(PF_UNIX,SOCK_STREAM,"tcp")
    6        logger.c:316     (make_logchannel          ): fopen("/var/log/asterisk/messages","a")
    7        logger.c:316     (make_logchannel          ): fopen("/var/log/asterisk/full","a")
    9        tcptls.c:585     (ast_tcptls_server_start  ): socket(PF_INET,SOCK_STREAM,"tcp")
   15       netsock.c:120     (ast_netsock_bindaddr     ): socket(PF_INET,SOCK_DGRAM,"udp")
   16      chan_sip.c:32197   (reload_config            ): socket(PF_INET,SOCK_DGRAM,"udp")
   17   chan_skinny.c:8502    (config_load              ): socket(PF_INET,SOCK_STREAM,"tcp")
   21     pbx_dundi.c:5022    (load_module              ): socket(PF_INET,SOCK_DGRAM,"udp")
   22  chan_unistim.c:6795    (reload_config            ): socket(PF_INET,SOCK_DGRAM,"udp")
   23      asterisk.c:4489    (main                     ): pipe({23,24})
   24      asterisk.c:4489    (main                     ): pipe({23,24})</span>
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