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https://issues.apache.org/jira/browse/THRIFT-4880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16857650#comment-16857650
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Bhavik commented on THRIFT-4880:
--------------------------------
No, our project uses version 0.9.1
> Crash in apache::thrift::protocol::TProtocol::writeMessageBegin(std::string
> const&, apache::thrift::protocol::TMessageType, int)+3)
> -----------------------------------------------------------------------------------------------------------------------------------
>
> Key: THRIFT-4880
> URL: https://issues.apache.org/jira/browse/THRIFT-4880
> Project: Thrift
> Issue Type: Question
> Components: C++ - Library
> Affects Versions: 0.9.1
> Reporter: Bhavik
> Priority: Major
>
> Working on android application using TThreadedServer protocol in our native
> code , observed crash within thrift autogenerated code for an RPC call
> process_client.
> In 400 to 500 iterations it happens once, Frequency of occurrence is very
> low. otherwise code works fine most of the time it works properly.
> Below are the details:
> signal 11 (SIGSEGV), code 2 (SEGV_ACCERR), fault addr 7729f450
> 03-15 22:58:09.039 1600 1600 I DEBUG : r0 7729f458 r1 738a7c38 r2
> 00000002 r3 00000000
> 03-15 22:58:09.039 1600 1600 I DEBUG : r4 00000000 r5 738a7c38 r6
> 738a7c0c r7 7729f458
> 03-15 22:58:09.041 1600 1600 I DEBUG : r8 7721be60 r9 738a7c3c sl
> 7729f45c fp 738a7c14
> 03-15 22:58:09.041 1600 1600 I DEBUG : ip 7729f450 sp 738a7c00 lr
> 76f1fd7d pc 7729f450 cpsr 000f0010
> 03-15 22:58:09.042 1600 1600 I DEBUG : d0 0000000000000000 d1
> 0000000000000000
> 03-15 22:58:09.042 1600 1600 I DEBUG : d2 0000000000000000 d3
> 0000000000000000
> 03-15 22:58:09.043 1600 1600 I DEBUG : d4 6f4c3a3a72656761 d5
> 206f4e203e206461
> 03-15 22:58:09.044 1600 1600 I DEBUG : d6 72756769666e6f63 d7
> 4052c00000000000
> 03-15 22:58:09.045 1600 1600 I DEBUG : d8 0000000000000000 d9
> 0000000000000000
> 03-15 22:58:09.046 1600 1600 I DEBUG : d10 0000000000000000 d11
> 0000000000000000
> 03-15 22:58:09.047 1600 1600 I DEBUG : d12 0000000000000000 d13
> 0000000000000000
> 03-15 22:58:09.048 1600 1600 I DEBUG : d14 0000000000000000 d15
> 0000000000000000
> 03-15 22:58:09.049 1600 1600 I DEBUG : d16 00000000241f30a4 d17
> 00000000241f30a4
> 03-15 22:58:09.049 1600 1600 I DEBUG : d18 41cd063bbd000000 d19
> 0000000000000000
> 03-15 22:58:09.050 1600 1600 I DEBUG : d20 0000000000000000 d21
> 0000000000000000
> 03-15 22:58:09.051 1600 1600 I DEBUG : d22 0000000000000000 d23
> 0000000000000000
> 03-15 22:58:09.051 1600 1600 I DEBUG : d24 0000000000000000 d25
> 0000000000000000
> 03-15 22:58:09.051 1600 1600 I DEBUG : d26 0000000000000000 d27
> 0000000000000000
> 03-15 22:58:09.052 1600 1600 I DEBUG : d28 0000000000000000 d29
> 0000000000000000
> 03-15 22:58:09.053 1600 1600 I DEBUG : d30 0000000000000000 d31
> 0000000000000000
> 03-15 22:58:09.054 1600 1600 I DEBUG : scr 00000010
> 03-15 22:58:09.056 1600 1600 I DEBUG :
> 03-15 22:58:09.056 1600 1600 I DEBUG : backtrace:
> 03-15 22:58:09.057 1600 1600 I DEBUG : #00 pc 000ec450 [heap]
> 03-15 22:58:09.058 1600 1600 I DEBUG : #01 pc 00076d79
> /system/lib/libmanager.so
> (canmanager::thrift::TManagerBackendProcessor::process_Client(int,
> apache::thrift::protocol::TProtocol*, apache::thrift::protocol::TProtocol*,
> void*)+244)
> 03-15 22:58:09.058 1600 1600 I DEBUG :
> 03-15 22:58:09.058 1600 1600 I DEBUG : stack:
> 03-15 22:58:09.059 1600 1600 I DEBUG : 738a7bc0 738a7c14
> [stack:3867]
> 03-15 22:58:09.059 1600 1600 I DEBUG : 738a7bc4 76ce49b1
> /vendor/lib/libc.so (malloc+12)
> 03-15 22:58:09.060 1600 1600 I DEBUG : 738a7bc8 3ffffffc
> 03-15 22:58:09.060 1600 1600 I DEBUG : 738a7bcc 0000000e
> 03-15 22:58:09.060 1600 1600 I DEBUG : 738a7bd0 76f388b2
> /system/lib/libmanager.so
> 03-15 22:58:09.060 1600 1600 I DEBUG : 738a7bd4 772a0428
> [heap]
> 03-15 22:58:09.060 1600 1600 I DEBUG : 738a7bd8 7729f458
> [heap]
> 03-15 22:58:09.060 1600 1600 I DEBUG : 738a7bdc 76e504a7
> /system/lib/libgnustl_shared.so (char* std::string::_S_construct<char
> const*>(char const*, char const*, std::allocator<char> const&,
> std::forward_iterator_tag)+62)
> 03-15 22:58:09.061 1600 1600 I DEBUG : 738a7be0 76f388b2
> /system/lib/libmanager.so
> 03-15 22:58:09.061 1600 1600 I DEBUG : 738a7be4 738a7c38
> [stack:3867]
> 03-15 22:58:09.061 1600 1600 I DEBUG : 738a7be8 738a7c0c
> [stack:3867]
> 03-15 22:58:09.062 1600 1600 I DEBUG : 738a7bec 76e507ab
> /system/lib/libgnustl_shared.so (std::basic_string<char,
> std::char_traits<char>, std::allocator<char> >::basic_string(char const*,
> std::allocator<char> const&)+34)
> 03-15 22:58:09.062 1600 1600 I DEBUG : 738a7bf0 00000000
> 03-15 22:58:09.062 1600 1600 I DEBUG : 738a7bf4 738a7c38
> [stack:3867]
> 03-15 22:58:09.063 1600 1600 I DEBUG : 738a7bf8 df0027ad
> 03-15 22:58:09.063 1600 1600 I DEBUG : 738a7bfc 00000000
> 03-15 22:58:09.064 1600 1600 I DEBUG : #00 738a7c00 00000000
> 03-15 22:58:09.064 1600 1600 I DEBUG : ........ ........
> 03-15 22:58:09.064 1600 1600 I DEBUG : #01 738a7c00 00000000
> 03-15 22:58:09.065 1600 1600 I DEBUG : 738a7c04 76d221f4
> 03-15 22:58:09.065 1600 1600 I DEBUG : 738a7c08 76e6e368
> 03-15 22:58:09.065 1600 1600 I DEBUG : 738a7c0c 76e4f249
> /system/lib/libgnustl_shared.so (std::string::_M_mutate(unsigned int,
> unsigned int, unsigned int)+60)
> 03-15 22:58:09.066 1600 1600 I DEBUG : 738a7c10 00000018
> 03-15 22:58:09.066 1600 1600 I DEBUG : 738a7c14 00000000
> 03-15 22:58:09.067 1600 1600 I DEBUG : 738a7c18 00000000
> 03-15 22:58:09.067 1600 1600 I DEBUG : 738a7c1c 76f3c091
> /system/lib/libmanager.so
> 03-15 22:58:09.068 1600 1600 I DEBUG : 738a7c20 76f44808
> /system/lib/libmanager.so
> 03-15 22:58:09.068 1600 1600 I DEBUG : 738a7c24 ffffffff
> 03-15 22:58:09.069 1600 1600 I DEBUG : 738a7c28 00000001
> 03-15 22:58:09.069 1600 1600 I DEBUG : 738a7c2c 76f44828
> /system/lib/libmanager.so
> 03-15 22:58:09.070 1600 1600 I DEBUG : 738a7c30 0000472f
> 03-15 22:58:09.070 1600 1600 I DEBUG : 738a7c34 76e6e301
> 03-15 22:58:09.070 1600 1600 I DEBUG : 738a7c38 772a0434
> [heap]
> 03-15 22:58:09.071 1600 1600 I DEBUG : 738a7c3c 772a0410 [heap]
>
> void TManagerBackendProcessor::process_Client(int32_t seqid,
> ::apache::thrift::protocol::TProtocol* iprot,
> ::apache::thrift::protocol::TProtocol* oprot, void* callContext)
> {
> void* ctx = NULL;
> if (this->eventHandler_.get() != NULL) {
> ctx = this->eventHandler_->getContext("TManagerBackend.Client",
> callContext);
> }
> ::apache::thrift::TProcessorContextFreer freer(this->eventHandler_.get(),
> ctx, "TManagerBackend.Client");
> if (this->eventHandler_.get() != NULL) {
> this->eventHandler_->preRead(ctx, "TManagerBackend.Client");
> }
> TManagerBackend_Client_args args;
> args.read(iprot);
> iprot->readMessageEnd();
> uint32_t bytes = iprot->getTransport()->readEnd();
> if (this->eventHandler_.get() != NULL) {
> this->eventHandler_->postRead(ctx, "TManagerBackend.Client", bytes);
> }
> TManagerBackend_Client_result result;
> try {
> result.success = iface_->Client(args.clientId);
> result.__isset.success = true;
> } catch (const std::exception& e) {
> if (this->eventHandler_.get() != NULL) {
> this->eventHandler_->handlerError(ctx, "TManagerBackend.Client");
> }
> ::apache::thrift::TApplicationException x(e.what());
> oprot->writeMessageBegin("Client",
> ::apache::thrift::protocol::T_EXCEPTION, seqid);
> x.write(oprot);
> oprot->writeMessageEnd();
> oprot->getTransport()->writeEnd();
> oprot->getTransport()->flush();
> return;
> }
> if (this->eventHandler_.get() != NULL) {
> this->eventHandler_->preWrite(ctx, "TManagerBackend.Client");
> }
> {color:#FF0000} oprot->writeMessageBegin("Client",
> ::apache::thrift::protocol::T_REPLY, seqid); //->line where crash observed
> (seems oprot is getting undesired value here, seems this is the first
> location of oprot getting used after its initialization in TthreadedServer,
> also first call made after TThreadedServer calls serve()){color}
> result.write(oprot);
> oprot->writeMessageEnd();
> bytes = oprot->getTransport()->writeEnd();
> oprot->getTransport()->flush();
> if (this->eventHandler_.get() != NULL) {
> this->eventHandler_->postWrite(ctx, "TManagerBackend.Client", bytes);
> }
> }
>
> we are using TThreadedServer with TBufferedTransportFactory.
> Checked everything in our code, not sure the crash is because of thrift code
> or not. Kindly help me to understand the significance of TProtocol oprot and
> possible root cause of the crash happening...
>
>
>
>
>
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