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https://issues.apache.org/jira/browse/DISPATCH-1280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16785825#comment-16785825
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Gordon Sim commented on DISPATCH-1280:
--------------------------------------
Backtrace from segfault:
{noformat}
Thread 3 "qdrouterd" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffe965c700 (LWP 15670)]
0x00007ffff6465504 in SSL_get0_alpn_selected () from /lib64/libssl.so.1.1
Missing separate debuginfos, use: dnf debuginfo-install
cyrus-sasl-lib-2.1.27-0.2rc7.fc28.x86_64 keyutils-libs-1.5.10-6.fc28.x86_64
krb5-libs-1.16.1-25.fc28.x86_64 libcom_err-1.44.2-0.fc28.x86_64
libffi-3.1-16.fc28.x86_64 libselinux-2.8-1.fc28.x86_64
libuv-1.24.1-1.fc28.x86_64 libwebsockets-3.0.1-2.fc28.x86_64
libxcrypt-4.4.3-2.fc28.x86_64 openssl-libs-1.1.0i-1.fc28.x86_64
pcre2-10.32-5.fc28.x86_64 python2-libs-2.7.15-4.fc28.x86_64
zlib-1.2.11-8.fc28.x86_64
(gdb) bt
#0 0x00007ffff6465504 in SSL_get0_alpn_selected () from /lib64/libssl.so.1.1
#1 0x00007ffff6a7e13c in lws_tls_server_conn_alpn () from
/lib64/libwebsockets.so.13
#2 0x00007ffff6a7e5b5 in lws_server_socket_service_ssl () from
/lib64/libwebsockets.so.13
#3 0x00007ffff6a75864 in rops_handle_POLLIN_h1 () from
/lib64/libwebsockets.so.13
#4 0x00007ffff6a6f59b in lws_service_fd_tsi () from /lib64/libwebsockets.so.13
#5 0x00007ffff6a803b0 in _lws_plat_service_tsi.part.1 () from
/lib64/libwebsockets.so.13
#6 0x00007ffff6a6f685 in lws_service () from /lib64/libwebsockets.so.13
#7 0x00007ffff7bae944 in http_thread_run (v=0x941be0) at
/home/gordon/projects/dispatch/src/http-libwebsockets.c:481
#8 0x00007ffff74ec594 in start_thread () from /lib64/libpthread.so.0
#9 0x00007ffff679bf4f in clone () from /lib64/libc.so.6
{noformat}
> http against https enabled listener causes segfault
> ---------------------------------------------------
>
> Key: DISPATCH-1280
> URL: https://issues.apache.org/jira/browse/DISPATCH-1280
> Project: Qpid Dispatch
> Issue Type: Bug
> Reporter: Gordon Sim
> Priority: Major
>
> If you have a listener with http enabled, an ssl profile referenced, but
> requireSsl set to false, and then try to access it over plain http, you get a
> segfault in libwebsockets if using version 3.0.1-2. Downgrading to 2.4.2 of
> libwebsockets fixes this.
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