shinrich commented on a change in pull request #7845:
URL: https://github.com/apache/trafficserver/pull/7845#discussion_r661841716
##########
File path: proxy/http2/Http2Stream.cc
##########
@@ -190,22 +191,34 @@ Http2Stream::main_event_handler(int event, void *edata)
case VC_EVENT_READ_COMPLETE:
case VC_EVENT_READ_READY:
_timeout.update_inactivity();
- if (e->cookie == &read_vio) {
+ if (e && e->cookie == &read_vio) {
if (read_vio.mutex && read_vio.cont && this->_sm) {
signal_read_event(event);
}
} else {
this->update_read_request(true);
}
break;
+ case VC_EVENT_ERROR:
case VC_EVENT_EOS:
- if (e->cookie == &read_vio) {
+ if (e && e->cookie == &read_vio) {
SCOPED_MUTEX_LOCK(lock, read_vio.mutex, this_ethread());
- read_vio.cont->handleEvent(VC_EVENT_EOS, &read_vio);
- } else if (e->cookie == &write_vio) {
+ read_vio.cont->handleEvent(event, &read_vio);
+ } else if (e && e->cookie == &write_vio) {
SCOPED_MUTEX_LOCK(lock, write_vio.mutex, this_ethread());
- write_vio.cont->handleEvent(VC_EVENT_EOS, &write_vio);
+ write_vio.cont->handleEvent(event, &write_vio);
+ }
+
+ // This assuming stream on inbound side
+ // TODO: make appropriate state
+ if (recv_end_stream && write_vio.cont && write_vio.op == VIO::WRITE &&
write_vio.nbytes != 0) {
+ SCOPED_MUTEX_LOCK(lock, write_vio.cont->mutex, this_ethread());
+ write_vio.cont->handleEvent(event, &write_vio);
+ } else if (read_vio.cont && read_vio.op == VIO::READ) {
+ SCOPED_MUTEX_LOCK(lock, read_vio.cont->mutex, this_ethread());
+ read_vio.cont->handleEvent(event, &read_vio);
}
Review comment:
Removing the second clause got rid of the quick use after free, but
eventually a new core occurred.
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