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<p class="MsoNormal"><span lang="EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> I found two core dumps generated in multi-thread scenarios in ESX part.<o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">Case1: libcurl support multi-thread<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US">core dump:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:red">#12 0x00002aaabea89712 in addbyter () from /usr/local/lib/libcurl.so.4<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#13 0x00002aaabea89b86 in dprintf_formatf () from /usr/local/lib/libcurl.so.4<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#14 0x00002aaabea8b055 in curl_mvsnprintf () from /usr/local/lib/libcurl.so.4<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#15 0x00002aaabea7678f in Curl_failf () from /usr/local/lib/libcurl.so.4<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#16 0x00002aaabea6d871 in Curl_resolv_timeout () from /usr/local/lib/libcurl.so.4<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#17 0x00000006e8a8f230 in ?? ()<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Fix code:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">esxVI_CURL_Connect() in esx_vi.c:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I add a new line as following:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">curl_easy_setopt(curl->handle, CURLOPT_NOSIGNAL, 1);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">Case2: libssl support multi-thread<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US">core dump:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#0 0x0000003f9b030265 in raise () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#1 0x0000003f9b031d10 in abort () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#2 0x0000003f9b06a84b in __libc_message () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#3 0x0000003f9b072fae in _int_malloc () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#4 0x0000003f9b074cde in malloc () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#5 0x0000003f9b07963b in strerror () from /lib64/libc.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#6 0x0000003fa188032a in ERR_load_ERR_strings () from /lib64/libcrypto.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#7 0x0000003fa187fde9 in ERR_load_crypto_strings () from /lib64/libcrypto.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#8 0x0000003fa48309d9 in SSL_load_error_strings () from /lib64/libssl.so.6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#9 0x00002aaaba8e612e in Curl_ossl_init () from /opt/CSCOppm-unit/hypervisor/libcurl/lib/libcurl.so.4<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#10 0x00002aaaba8ee6c1 in curl_global_init () from /opt/CSCOppm-unit/hypervisor/libcurl/lib/libcurl.so.4<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#11 0x00002aaaba8ee6f8 in curl_easy_init () from /opt/CSCOppm-unit/hypervisor/libcurl/lib/libcurl.so.4<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#12 0x00002aaaba0d932b in esxVI_RegisterVM_Task (ctx=0x2aaaba0d96d1, _this=0x5cf54b20, path=0x50e921c0 "10.74.125.50", name=0x2aaac0ae6e80 "root", asTemplate=3228119712, pool=0x5cf54b20, host=0x2aaac0693270, output=0x50e921a0)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:21.6pt"><span lang="EN-US">at esx/esx_vi_methods.generated.c:480<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Possible Problem:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:SimSun;color:black;background:white">Two callback functions(locking_function and threadid_func) need to be set.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="http://www.openssl.org/docs/crypto/threads.html#DESCRIPTION">http://www.openssl.org/docs/crypto/threads.html#DESCRIPTION</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Would you help to give some comments about this two core dump?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">B.R.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Benjamin Wang</span><span lang="EN-US" style="font-size:12.0pt;font-family:SimSun;color:black;background:white"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"><o:p> </o:p></span></p>
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