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Posted to github@trafficserver.apache.org by "brbzull0 (via GitHub)" <gi...@apache.org> on 2023/02/17 14:53:32 UTC
[GitHub] [trafficserver] brbzull0 opened a new pull request, #9436: quic: make sure we create a stream if none available.
brbzull0 opened a new pull request, #9436:
URL: https://github.com/apache/trafficserver/pull/9436
While doing some tests with different `initial_max_streams_*` configuration I found out that when increasing the streams using h2load ATS crashes as the requested stream is not created. This PR follows the same logic as `read_ready` and creates the stream if needed.
Crash:
```
Thread 4 "[ET_NET 1]" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff41df700 (LWP 965501)]
0x0000555555ef0872 in QUICStreamImpl::send_data (this=0x0, quiche_con=0x7fff8cba7e50) at QUICStream_quiche.cc:78
78 len = quiche_conn_stream_capacity(quiche_con, this->_id);
(gdb) bt
#0 0x0000555555ef0872 in QUICStreamImpl::send_data (this=0x0, quiche_con=0x7fff8cba7e50) at QUICStream_quiche.cc:78
#1 0x0000555555e4a3b4 in QUICNetVConnection::_handle_write_ready (this=0x7fff8c5b3ca0) at QUICNetVConnection_quiche.cc:544
#2 0x0000555555e489c1 in QUICNetVConnection::state_established (this=0x7fff8c5b3ca0, event=2501, data=0x7fffde2f8040) at QUICNetVConnection_quiche.cc:168
#3 0x00005555559c31a7 in Continuation::handleEvent (this=0x7fff8c5b3ca0, event=2501, data=0x7fffde2f8040)
at /home/dmeden/code/git/trafficserver/iocore/eventsystem/I_Continuation.h:228
#4 0x0000555555ef8103 in EThread::process_event (this=0x555556616650, e=0x7fffde2f8040, calling_code=2501) at UnixEThread.cc:150
#5 0x0000555555ef876c in EThread::execute_regular (this=0x555556616650) at UnixEThread.cc:256
#6 0x0000555555ef8a8a in EThread::execute (this=0x555556616650) at UnixEThread.cc:335
#7 0x0000555555ef71a6 in spawn_thread_internal (a=0x5555564d11d0) at Thread.cc:79
#8 0x00007ffff76e6609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9 0x00007ffff7038133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
(gdb) f 1
#1 0x0000555555e4a3b4 in QUICNetVConnection::_handle_write_ready (this=0x7fff8c5b3ca0) at QUICNetVConnection_quiche.cc:544
544 stream->send_data(this->_quiche_con);
(gdb) p s
$5 = 4232
(gdb) p stream
$6 = (QUICStreamImpl *) 0x0
```
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[GitHub] [trafficserver] brbzull0 merged pull request #9436: quic: make sure we create a stream if none available.
Posted by "brbzull0 (via GitHub)" <gi...@apache.org>.
brbzull0 merged PR #9436:
URL: https://github.com/apache/trafficserver/pull/9436
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