Susan Hinrichs created TS-4902:
----------------------------------
Summary: Http2ConnectionState::stream_list gets in bad state
Key: TS-4902
URL: https://issues.apache.org/jira/browse/TS-4902
Project: Traffic Server
Issue Type: Bug
Components: HTTP/2
Reporter: Susan Hinrichs
Saw this in one of my runs while debugging TS-4900 and TS-4813. It might have
been due to my attempted fix, but I don't think so.
I left current master running in production for an hour. When I returned, CPU
utilization had jumped from 70% to 400%. perf top showed that the majority of
time was being spent in Http2ConnectionState::restart_streams. Connected with
debugger and two threads were spinning in that method. In each case
this->stream_list.head->link.next == this->stream_list.head->link.prev and
this->thread_list.head->link.next != NULL.
I assume that was are missing some locking and the stream_list is being
manipulated by two threads in parallel.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
