Filter::sendHeaders core dump

[fenglonz]

Hello!
When onError, core dump occurs; How to fix it?
Thanks!

Program terminated with signal 11, Segmentation fault.
#0 0x0000000000636fd6 in proxygen::Filter::sendHeaders(proxygen::HTTPMessage&) ()
Missing separate debuginfos, use: debuginfo-install bzip2-libs-1.0.6-13.el7.x86_64 elfutils-libelf-0.168-8.el7.x86_64 glibc-2.17-106.el7_2.8.x86_64 keyutils-libs-1.5.8-3.el7.x86_64 krb5-libs-1.13.2-12.el7_2.x86_64 libcom_err-1.42.9-7.el7.x86_64 libgcc-4.8.5-36.el7_6.1.x86_64 libselinux-2.2.2-6.el7.x86_64 openssl-libs-1.0.2k-16.el7.x86_64 pcre-8.32-15.el7_2.1.x86_64 snappy-1.1.0-3.el7.x86_64 xz-libs-5.2.2-1.el7.x86_64 zlib-1.2.7-17.el7.x86_64
(gdb) bt
#0 0x0000000000636fd6 in proxygen::Filter::sendHeaders(proxygen::HTTPMessage&) ()
#1 0x00000000006385f2 in proxygen::CompressionFilter::sendHeaders(proxygen::HTTPMessage&) ()
#2 0x000000000052aac3 in proxygen::ResponseBuilder::send (this=0x7fcc8179f290) at ../proxygenlib/proxygen/include/proxygen/httpserver/ResponseBuilder.h:164
#3 0x000000000052a8bc in proxygen::ResponseBuilder::sendWithEOM (this=0x7fcc8179f290) at ../proxygenlib/proxygen/include/proxygen/httpserver/ResponseBuilder.h:136
#4 0x0000000000528505 in broalgo::shield::PushRequestHandler::onError (this=0x7fcc74022a30, err=proxygen::kErrorRead) at server/shield_request_handler.cc:393
#5 0x0000000000636ee5 in proxygen::Filter::onError(proxygen::ProxygenError) ()
#6 0x0000000000687139 in proxygen::RequestHandlerAdaptor::setError(proxygen::ProxygenError) ()
#7 0x0000000000686b84 in proxygen::RequestHandlerAdaptor::onError(proxygen::HTTPException const&) ()
#8 0x00000000006e3b2f in proxygen::HTTPTransaction::onError(proxygen::HTTPException const&) ()
#9 0x00000000006bc44c in proxygen::HTTPSession::onError(unsigned long, proxygen::HTTPException const&, bool) ()
#10 0x000000000071583b in proxygen::PassThroughHTTPCodecFilter::onError(unsigned long, proxygen::HTTPException const&, bool) ()
#11 0x000000000072eb43 in proxygen::HTTP1xCodec::onParserError(char const*) ()
#12 0x000000000072e8a8 in proxygen::HTTP1xCodec::onIngressEOF() ()
#13 0x0000000000715f33 in proxygen::PassThroughHTTPCodecFilter::onIngressEOF() ()
#14 0x00000000006c5c12 in proxygen::HTTPSession::shutdownTransport(bool, bool, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&) ()
#15 0x00000000006b89cd in proxygen::HTTPSession::readEOF() ()
#16 0x00007fcd020e41d0 in ?? ()
#17 0x00007fcc74010f68 in ?? ()
#18 0x00007fcc74001ca0 in ?? ()
#19 0x00007fcc8179f9e0 in ?? ()
#20 0x00000000006cf8b0 in folly::detail::ScopeGuardImpl<folly::IOBufQueue::updateGuard()::{lambda()#1}, true>::~ScopeGuardImpl() ()
#21 0x00007fcd020e25ca in ?? ()
#22 0x00000002817a2700 in ?? ()
#23 0x00007fcc74001ca0 in ?? ()
#24 0x00007fcc74001fa8 in ?? ()
#25 0x0000000038a00914 in ?? ()
#26 0x00007fcc8179fd50 in ?? ()
#27 0x00007fcd020fe946 in ?? ()
#28 0x00007fcc74000e40 in ?? ()
#29 0x00007fcc74000b90 in ?? ()
#30 0x00007fcc740010d0 in ?? ()
#31 0x00000000008abe42 in event_active_nolock (ev=0x0, res=, ncalls=) at event.c:2341
#32 0x00007fcc74001e28 in ?? ()
#33 0x00007fcc8179fd50 in ?? ()
#34 0x00007fcd020e9fa7 in ?? ()
#35 0x0000000200000054 in ?? ()
#36 0x00007fcc74001e28 in ?? ()
#37 0x00007fcc8179fd80 in ?? ()
#38 0x00007fcd02111ced in ?? ()
#39 0x00007fcc74001e28 in ?? ()
#40 0x0000005400070002 in ?? ()
#41 0x0000000000000000 in ?? ()

My code:
383 void PushRequestHandler::onError(ProxygenError err) noexcept {
384 LOG_ERROR( "Client error: %s", proxygen::getErrorString(err));
385 gPushBody_="version=0.0.2|r=|d=";
386 if (body_)
387 LOG_ERROR( "Client error: %s", body_->data());
388 ResponseBuilder(downstream_)
389 .status(200, "OK")
390 .header("Request-Number",
391 folly::tostd::string(stats_->getRequestCount()))
392 .body(gPushBody_)
393 .sendWithEOM();
394 if (this != NULL) {
395 delete this;
396 }
397 }

[lnicco]

@fenglonz the onError() callback means that the transaction has hit an unrecoverable error condition.
It looks like you are trying to send a response from there, which will be impossible given the above condition.
Your paste does not include console logs, but I am guessing that would result in an invalid state machine transition, hence the program abort.

[lnicco]

could you please post here a command that we can use to reproduce your issue ?

[afrind]

Closing due to lack of engagement. Please reopen if you have a way we can reproduce.