Bug 17878 - REGRESSION: Acid3 sometimes crashes Webkit under WebCore::Loader::Host::cancelRequests
Summary: REGRESSION: Acid3 sometimes crashes Webkit under WebCore::Loader::Host::cance...
Alias: None
Product: WebKit
Classification: Unclassified
Component: Page Loading (show other bugs)
Version: 528+ (Nightly build)
Hardware: Mac OS X 10.5
: P1 Major
Assignee: Antti Koivisto
URL: http://acid3.acidtests.org
Keywords: Regression
: 17910 (view as bug list)
Depends on:
Blocks: Acid3
  Show dependency treegraph
Reported: 2008-03-16 10:18 PDT by Robert Blaut
Modified: 2008-03-18 10:47 PDT (History)
2 users (show)

See Also:

crash log (26.70 KB, text/plain)
2008-03-16 10:19 PDT, Robert Blaut
no flags Details
crash log (r31090) (28.78 KB, text/plain)
2008-03-17 00:22 PDT, Robert Blaut
no flags Details
speculative patch (1.54 KB, patch)
2008-03-17 02:26 PDT, Antti Koivisto
darin: review+
Details | Formatted Diff | Diff

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Description Robert Blaut 2008-03-16 10:18:16 PDT
Acid3 during performing many reloads crashes Webkit r31078 under WebCore::Loader::Host::cancelRequests(WebCore::DocLoader*)

Steps to reproduce:
1) Load http://acid3.acidtests.org
2) Try to reload Acid3 test several times until crash ;)

Crash log attached
Comment 1 Robert Blaut 2008-03-16 10:19:19 PDT
Created attachment 19796 [details]
crash log
Comment 2 Antti Koivisto 2008-03-16 13:00:00 PDT

*** This bug has been marked as a duplicate of 17862 ***
Comment 3 Robert Blaut 2008-03-17 00:22:03 PDT
I reopen the bug. I'm still able to reproduce the crash in Webkit r31090. Fix for bug 17862 doesn't fix this bug, so probably this crash has different reason. 
Comment 4 Robert Blaut 2008-03-17 00:22:38 PDT
Created attachment 19827 [details]
crash log (r31090)
Comment 5 Antti Koivisto 2008-03-17 01:40:41 PDT
I can't reproduce this with the current ToT no matter how much I reload.
Comment 6 Robert Blaut 2008-03-17 01:51:23 PDT
It's easier to reproduce if you frequently stop loading in the middle of loading the test and repeat loading. It will crash for sure. It often crashes around 60/100 - 69/100 score.
Comment 7 Antti Koivisto 2008-03-17 02:26:23 PDT
Created attachment 19828 [details]
speculative patch

I can't reproduce the crash or make a test case for this one but I'm pretty sure this is the problem. Essentially the same bug as 17862 except in didFail() instead of didFinishLoading().
Comment 8 Darin Adler 2008-03-17 07:41:53 PDT
Comment on attachment 19828 [details]
speculative patch

Comment 9 Antti Koivisto 2008-03-17 10:38:40 PDT
Sending        WebCore/ChangeLog
Sending        WebCore/loader/loader.cpp
Transmitting file data ..
Committed revision 31099.
Comment 10 Mark Rowe (bdash) 2008-03-18 10:47:03 PDT
*** Bug 17910 has been marked as a duplicate of this bug. ***