I have an odd problem that I was wondering if anyone has seen before or could maybe offer some input on.
I'm using xerces 2.6.0 on MacOS 10.3.7, and my application is multi-threaded. There are two threads using xerces, each with its own parser and associated data. I have seen a seg fault a couple times now from these threads with identical stack traces on both of the xerces threads. (Both threads stacks are included at the bottom from a single crash.)
The only guess I've been able to come up with for what's going on is that the Apple Carbon routine UCCompareTextDefault() is not thread-safe. I was wondering if anyone has run into anything like this before, or knows whether indeed, it may be a threading issue related to the Apple routines.
Help? Thanks very much in advance. -Chris
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Thread 2 Crashed:
0 libicucore.A.dylib 0x968d2208 ures_close + 0x18
1 libicucore.A.dylib 0x968e9fe8 ucol_close + 0xa8
2 ...ple.CoreServices.CarbonCore 0x902ce4c4 SetICUCollator + 0x30
3 ...ple.CoreServices.CarbonCore 0x902a4e58 UCCompareTextDefault + 0x98
4 libxerces-c.26.0.dylib 0x014f0e5c xercesc_2_6::MacOSUnicodeConverter::compareIString(unsigned short const*, unsigned short const*) + 0xc0
5 libxerces-c.26.0.dylib 0x01567174 xercesc_2_6::XMLString::compareIString(unsigned short const*, unsigned short const*) + 0x40
6 libxerces-c.26.0.dylib 0x01569c48 xercesc_2_6::XMLURL::lookupByName(unsigned short const*) + 0x3c
7 libxerces-c.26.0.dylib 0x0156c4dc xercesc_2_6::XMLURL::parse(unsigned short const*) + 0x284
8 libxerces-c.26.0.dylib 0x0156adc0 xercesc_2_6::XMLURL::setURL(unsigned short const*) + 0x28
9 libxerces-c.26.0.dylib 0x0156a314 _ZN11xercesc_2_66XMLURLC4EPKcPNS_13MemoryManagerE + 0x8c
10 libxerces-c.26.0.dylib 0x0156a278 xercesc_2_6::XMLURL::XMLURL(char const*, xercesc_2_6::MemoryManager*) + 0x10
11 intercomd 0x0003250c xml::DomParser::ParseURL(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) + 0x310
12 intercomd 0x000cb384 weather::Parser::Update() + 0x3c4
13 intercomd 0x00098abc weather::Implementation::DoUpdate(bool, bool, bool) + 0x354
14 intercomd 0x000d3bdc weather::Thread::execute() + 0x69c
15 intercomd 0x00029054 util::Thread::run() + 0x38
16 intercomd 0x0002909c util::Thread::threadFunction(void*) + 0x34
17 libSystem.B.dylib 0x900246e8 _pthread_body + 0x28
Thread 3 Crashed:
0 libicucore.A.dylib 0x968d2208 ures_close + 0x18
1 libicucore.A.dylib 0x968e9fe8 ucol_close + 0xa8
2 ...ple.CoreServices.CarbonCore 0x902ce4c4 SetICUCollator + 0x30
3 ...ple.CoreServices.CarbonCore 0x902a4e58 UCCompareTextDefault + 0x98
4 libxerces-c.26.0.dylib 0x014f0e5c xercesc_2_6::MacOSUnicodeConverter::compareIString(unsigned short const*, unsigned short const*) + 0xc0
5 libxerces-c.26.0.dylib 0x01567174 xercesc_2_6::XMLString::compareIString(unsigned short const*, unsigned short const*) + 0x40
6 libxerces-c.26.0.dylib 0x01569c48 xercesc_2_6::XMLURL::lookupByName(unsigned short const*) + 0x3c
7 libxerces-c.26.0.dylib 0x0156c4dc xercesc_2_6::XMLURL::parse(unsigned short const*) + 0x284
8 libxerces-c.26.0.dylib 0x0156adc0 xercesc_2_6::XMLURL::setURL(unsigned short const*) + 0x28
9 libxerces-c.26.0.dylib 0x0156a314 _ZN11xercesc_2_66XMLURLC4EPKcPNS_13MemoryManagerE + 0x8c
10 libxerces-c.26.0.dylib 0x0156a278 xercesc_2_6::XMLURL::XMLURL(char const*, xercesc_2_6::MemoryManager*) + 0x10
11 intercomd 0x0003250c xml::DomParser::ParseURL(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) + 0x310
12 intercomd 0x000b7838 rss::Parser::Parse(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) + 0x314
13 intercomd 0x0008a834 rss::Implementation::DoUpdate() + 0x2d8
14 intercomd 0x000b9b48 rss::Thread::execute() + 0x5cc
15 intercomd 0x00029054 util::Thread::run() + 0x38
16 intercomd 0x0002909c util::Thread::threadFunction(void*) + 0x34
17 libSystem.B.dylib 0x900246e8 _pthread_body + 0x28
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