[tor-bugs] #9229 [Tor]: While bootstrapping, Tor clients stall for 60s when obfsproxy bridges are used.
Tor Bug Tracker & Wiki
blackhole at torproject.org
Mon Mar 10 18:47:15 UTC 2014
#9229: While bootstrapping, Tor clients stall for 60s when obfsproxy bridges are
used.
-------------------------+-------------------------------------------------
Reporter: phw | Owner: asn
Type: defect | Status: new
Priority: normal | Milestone: Tor: 0.2.5.x-final
Component: Tor | Version:
Resolution: | Keywords: 60s, consensus, stall, obfsproxy,
Actual Points: | flashproxy, tbb-needs
Points: | Parent ID:
-------------------------+-------------------------------------------------
Comment (by nickm):
=== Broken thing 1:
In learned_bridge_descriptor(), when I reproduce the bug, the body of this
if-statement is never executed:
{{{
if (first) {
routerlist_retry_directory_downloads(now);
}
}}}
Interesting! Apparently, by the time we hit learned_bridge_descriptor(),
any_bridge_descriptors_known() is always true. At least, for me.
The function routerlist_retry_directory_downloads() seems pretty heavy-
weight for the general case we're concerned about here too. In my
testing, update_networkstatus_downloads() was sufficient. Writing a
patch...
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9229#comment:22>
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