[Libevent-users] evdns.c error (libevent 2.0.10)

[Mr Dash Four <mr.dash.four@xxxxxxxxxxxxxx>]

I am getting the following error message in syslog:

Error from libevent: evdns.c:1360: Assertion req != 
port->pending_replies failed in server_port_flush

I do not know what that error means, but it happens when I get 
disconnected and the application which uses the network interface (tor) 
cannot send any packets - temporarily - over the tun0 device while 
openvpn reconnects again. I do not know whether this is a bug with tor 
or libevent, but thought to check here first. Any idea what is causing 
this and how I could fix this would be appreciated!

Also, I have submitted a bug for libevent 1.x a couple of months ago 
(https://bugzilla.redhat.com/show_bug.cgi?id=658858), and although that 
was not fixed in version 1.x I was hoping to be corrected in the new 
release, but as I can see this hasn't happened.

It is to do with cross-compilation - currently without modification of 
event-config.h that is, simply put, impossible!

I have amended my patch and made it possible again for both 32- and 
64-bit versions of libevent to co-exist on the same host, though I am 
not sure whether I should submit this as a bug for the new version 
judging by the progress (or lack thereof) of my last submission.

I attach the newly modified event-config.h, which requires a simple 
rename of (x86_64) event-config.h to event-config-64.h and, likewise, 
(ix86) event-config.h to event-config-32.h to allow both versions of 
this file to co-exist, enabling cross compilation.

/* This file is here to prevent a file conflict on multiarch systems.  A
 * conflict will frequently occur because arch-specific build-time
 * configuration options are stored (and used, so they can't just be stripped
 * out) in event-config.h.  The original event-config.h has been renamed.
 * DO NOT INCLUDE THE NEW FILE DIRECTLY -- ALWAYS INCLUDE THIS ONE INSTEAD. */

#ifdef event2_eventconfig_multilib_redirection_h
#undef event2_eventconfig_multilib_redirection_h
/*#error "Do not define event2_eventconfig_multilib_redirection_h!"*/
#endif
#define event2_eventconfig_multilib_redirection_h

#if defined(__x86_64__)
#include "event2/event-config-64.h"
#else
#include "event2/event-config-32.h"
#endif

#undef event2_eventconfig_multilib_redirection_h