316875 - Full CPU load after several reloads of instance

Status: RESOLVED WORKSFORME

(Core Graveyard :: XForms, defect, P2)

Description

[Splash]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; ru; rv:1.8) Gecko/20051025 Firefox/1.5
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; ru; rv:1.8) Gecko/20051025 Firefox/1.5

When I several times reload instance Firefox uses 100% CPU even after I close all tabs. (I leave only about:blank)

Reproducible: Sometimes

Steps to Reproduce:
1. Save two attachments in same folder.
2. Open test.xml
3. Hit on button "Reload" several times without intervals between they. There are no exact value of hits count. It often happens after 10-20 hits.

Actual Results:  
Firefox uses 100% CPU without obvious reason

Comment 1

[Splash]

Attachment: Testcase

Comment 2

[Splash]

Attachment: External instance for testcase

I think great size of instance have meaning

Comment 3

[Allan Beaufour]

(In reply to comment #0)
> Firefox uses 100% CPU without obvious reason

Confirmed. It does suddenly run wild... :(

Comment 4

[Allan Beaufour]

It could be related to bug 300591, but I'm not sure.

Comment 5

[aaronr]

I tried to recreate this on Windows on both trunk and on 1.5 with xforms.xpi from the project page.  No luck.  Is this linux only?

Comment 6

[Splash]

I see it on Windows too in Firefox 1.5b1
In Firefox 1.5 I don't see it, but I not sure what I test it enough

Comment 7

[Allan Beaufour]

Hmmm, I just retried this. I cannot get this (on trunk) to go to full CPU load. After clicking the "Reload" button twice, I get this:
WARNING: NS_ENSURE_TRUE(NS_SUCCEEDED(rv)) failed: file nsXFormsSubmissionElement.cpp, line 630
huh?

If I instead of using a "send" element in the testcase use a "submit", I can submit all I want... weird.

Comment 8

[Allan Beaufour]

Can anybody reproduce this on trunk?

Comment 9

[aaronr]

(In reply to comment #8)
> Can anybody reproduce this on trunk?
> 

I've never been able to recreate this bug, so you can't tell much by me :-)  But after changing send to submit I could not recreate this bug, no.

Comment 10

[aaronr]

(In reply to comment #7)
> Hmmm, I just retried this. I cannot get this (on trunk) to go to full CPU load.
> After clicking the "Reload" button twice, I get this:
> WARNING: NS_ENSURE_TRUE(NS_SUCCEEDED(rv)) failed: file
> nsXFormsSubmissionElement.cpp, line 630
> huh?
> 
> If I instead of using a "send" element in the testcase use a "submit", I can
> submit all I want... weird.
> 

I opened bug 332292 on this problem.

Comment 11

[Allan Beaufour]

I cannot reproduce this with 1.5.0.2 and xforms v0.5.