[tbb-bugs] #20150 [Applications/Tor Browser]: Tor Browser's Update window initially shows "NaN/sec"

Tor Bug Tracker & Wiki blackhole at torproject.org
Wed Sep 21 00:18:36 UTC 2016

#20150: Tor Browser's Update window initially shows "NaN/sec"
 Reporter:  teor                      |          Owner:  tbb-team
     Type:  defect                    |         Status:  new
 Priority:  Medium                    |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Normal                    |     Resolution:
 Keywords:                            |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:

Comment (by teor):

 Replying to [comment:1 mcs]:
 > This is probably also a bug in Firefox although I did not find a bug
 report at bugzilla.mozilla.org. There is a "Connecting to the update
 server…" message that is shown initially and presumably it is not supposed
 to be changed until the download size is known.
 > Are you able to reproduce this reliably? On what OS? I have seen this in
 the past (but not recently) and I was not able to reproduce it with a
 6.0.4 to 6.0.5 update. From a quick read of the code, I would say it tries
 to avoid division by zero, but there are enough layers of code that I am
 not 100% sure (divide by zero does seem like the most likely root cause of

 I am on OS X. I am also on networks where latency is high (~100-500ms), so
 that could be a factor.

 I'll see if I can replicate the issue with Tor Browser 6.0.4 -> 6.0.5.

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20150#comment:2>
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