300981 - Hang in Firefox 1.0.5+ with Java 1.5.0 update 4

Status: RESOLVED DUPLICATE of bug 299024

(Core Graveyard :: Java APIs to WebShell, defect)

Description

[Bob Clary [:bc] (inactive)]

Occurs on FF 1.0.5+/WinXPSP2 with Java 1.5.0 update 4 enabled.

Load the testcase with Java enabled. Among others, the following assertion is
new first appearing after 7/2/2005. I am pretty sure I was successfully running
this with Java 1.5.0 update 4 on or before 7/2/2005. 

###!!! ASSERTION: empty line: 'fromLine->GetChildCount()', file
c:/work/mozilla/builds/ff/1.0.x/mozilla/layout/html/base/src/nsBlock
Frame.cpp, line 2561

This can sometimes hang the browser with CPU pegged or can leave the process
running if the browser is closed. This will stop the DOM TS from completing if
Java is enabled. I believe I first saw this when trying to test 1.0.5, but
wasn't sure the problem was real.

There hasn't been any changes to this file in ages and dbaron doesn't think the
cause is in layout.

Disabling Java does not show the assertion and does not hang the browser.

Comment 1

[Bob Clary [:bc] (inactive)]

I'm not sure the component was right... 

Setting the blocking 1.0.6 flag to get this considered.

Comment 2

[Brendan Eich [:brendan]]

This needs a lot more diagnosis, then a reviewed patch, to even begin to
consider for 1.0.6.  It's not going to block just based on the description.

Are we *sure* it doesn't happen in earlier branch releases?  Is comment 0
talking about nightly branch build dates when it says "Among others, the
following assertion is new first appearing after 7/2/2005. I am pretty sure I
was successfully running this with Java 1.5.0 update 4 on or before 7/2/2005"? 
If so, the regression must have gone in on 7/1/2005 or whatever the window
between the previous build that worked, and the 7/2 build that failed, was.  Is
that really the case?

/be

Comment 3

[Bob Clary [:bc] (inactive)]

(In reply to comment #2)

I have results of almost daily runs of 1.0.x from  6/7/2005 up through 7/2/2005.
 I double checked and only have runs with Java enabled for 6/8, 6/9, 6/10, 6/12,
6/14, 6/15, 6/16, 6/19 and 6/28. The 6/19 run completed however the 6/28 run
timed out during the dom ts, although the assertion did not appear then. I
installed java 1.5.0 update 4 on 6/29.

I didn't expect this to block 1.0.6, but wanted to make sure that I didn't let
it go by without making it known. Sorry. 

Removing the 1.0.6 request and the reqression keyword.

Comment 4

[Bob Clary [:bc] (inactive)]

This is essentially the same problem in bug 299024  

*** This bug has been marked as a duplicate of 299024 ***