Closed Bug 492045 Opened 15 years ago Closed 15 years ago

Pasting text into textarea frequently crashes the browser

Categories

(Firefox :: General, defect)

Product:
Firefox
Component:
General
Platform:
x86
macOS
Type:
defect
Priority:
Not set
Severity:
critical

Tracking

()

Status:
RESOLVED DUPLICATE of bug 457316

People

(Reporter: theboergers, Unassigned)

Details

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1b5pre) Gecko/20090508 Shiretoko/3.5b5pre FirePHP/0.2.4
Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1b5pre) Gecko/20090508 Shiretoko/3.5b5pre FirePHP/0.2.4

I can expect the browser to crash about 2 times per day due to this behavior. As far as I can tell it is always due to pasting text into a textarea. This bug is not new to this nightly build but has been happening for a while. I do not know if it will happen using paste from a right-click on the mouse or a paste from the Edit menu in the menubar. I always use command-v from the keyboard to paste.

Related or not but perhaps worth mentioning and slightly less frequent in occurrence, textareas will sometimes stop accepting input from a keyboard. I can use a mouse to highlight text or move the cursor insertion point but I cannot type anything into the textarea. I haven't observed any repeatable behavior that triggers this, only that it happens and I have to restart the browser in order to fix the problem.

Reproducible: Sometimes

Steps to Reproduce:
1. Paste text (command-v) into textarea
2.
3.


Expected Results:  
Immediate crash.
Chris: Does this happen in safe mode? I have not seen this. Also if you could give an example of a site where this is occuring so I can try to reproduce that would be helpful.

Also, type about:crashes in the URL bar and paste a sample crash report so we can see the stack. thanks.
I am unsure if it happens in safe mode as I've never used the browser in safe mode. Most of my time in Firefox is spent in our website's CMS (Typo3 http://typo3.org) so 99% of these crashes likely occurred in the backend of said CMS. Of course, I can't give you access to our site but the CMS is open source and freely available. Here are some of my most recent crash reports. The most recent crash report's raw dump is below the list of recent crash reports.

Thanks Marcia!

http://crash-stats.mozilla.com/report/index/eebcfc27-a86f-408b-92df-3cd4b2090508	5/8/09	2:18 PM
http://crash-stats.mozilla.com/report/index/d07b9e21-90f3-483b-98f1-48ce72090508	5/8/09	9:48 AM
http://crash-stats.mozilla.com/report/index/e1296c22-fe8e-462c-a4c1-e5abf2090507	5/7/09	3:56 PM
http://crash-stats.mozilla.com/report/index/825dbc8e-c50e-4ca7-8d86-438402090505	5/5/09	3:58 AM
http://crash-stats.mozilla.com/report/index/b72070c4-7dc2-4dae-bc26-826842090504	5/4/09	8:16 PM
http://crash-stats.mozilla.com/report/index/4f4866ee-216d-439c-b90a-b89822090501	5/1/09	10:43 AM
http://crash-stats.mozilla.com/report/index/4b72c596-6c0d-4920-9642-34d882090501	5/1/09	9:48 AM
http://crash-stats.mozilla.com/report/index/16d92dd1-69d7-4138-b56d-7e8c12090429	4/29/09	9:40 AM
http://crash-stats.mozilla.com/report/index/fdeb6190-372c-4b0f-b695-4727d2090427	4/27/09	8:28 PM
http://crash-stats.mozilla.com/report/index/cf8f9bf7-d4c9-410d-a21c-0526c2090424	4/24/09	5:37 PM
http://crash-stats.mozilla.com/report/index/2ca4a051-3bef-45f5-bbd1-9e8d92090423	4/23/09	4:37 PM
http://crash-stats.mozilla.com/report/index/813d0fdb-9c1d-4a86-a596-2758f2090423	4/23/09	12:53 PM


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Status: UNCONFIRMED → RESOLVED
Closed: 15 years ago
Resolution: --- → DUPLICATE
Reading bug 457316, it doesn't seems clear what the similarities are. What is the cause?
the similarities are in your crash reports.

as to the cause, i'm sure someone could explain it once the other bug is fixed.
It's very unclear how to reproduce bug 457316.

This bug (bug 492045) doesn't (yet) have good steps to reproduce,
either.

But here's something that might help resolve both this bug and bug
457316:  Try to find a way to this bug's crash at least 50% of the
time.  Then if you do find a way, give precise, detailed, step-by-step
instructions to reproduce it (including URLs of pages that it can be
reproduced with).

(We generally can't fix bugs that can't be reproduced.)
FWIW, bp-d07b9e21-90f3-483b-98f1-48ce72090508 has 

Obj-C Exception data:
NSInvalidArgumentException: *** -[_NSRepresentationInfo setImage:]: unrecognized selector sent to instance 0x2d0dd4a0
I may have found something in common with our bug reports. Someone <http://bugzilla.mozilla.org/show_bug.cgi?id=457316#c17> mentioned KeyCue <http://www.macility.com/products/keycue/> which is a utility that reveals the keyboard shortcuts of the currently running program when you press and hold down the command key. I am (coincidentally?) running KeyCue. This certainly may be related to my cut and paste issues and bug 457316 if the user was switching tabs using command-option-left/right arrow.

It may be a red herring but it seemed worth mentioning, especially since this bug is difficult to reproduce.

Thanks to everyone for taking your valuable time on this.
> Obj-C Exception data:
> NSInvalidArgumentException: *** -[_NSRepresentationInfo setImage:]:
> unrecognized selector sent to instance 0x2d0dd4a0

Thanks, Smokey!

This not only pins down the exact line of the crash, but also its
cause:

http://hg.mozilla.org/mozilla-central/annotate/6c48080dba78/widget/src/cocoa/nsMenuItemIconX.mm#l446

Inconsistent "unrecognized selector" messages usually indicate
attempts to access a deleted object.  (This message is inconsistent
because it's only recorded in one of the crash logs.)

An Objective-C object gets deleted.  Then another Objective-C object
gets allocated at the same address.  All Objective-C objects have the
same format header.  But the second object here will normally belong
to a different class, with different methods.  So calling 'setImage:'
on the second object won't crash immediately.  Instead it'll get as
far as the check for an unrecognized selector (invoked on every call
to an Objective-C method).  And since it's very unlikely that the
second object also has a 'setImage:' method, the checking code will
throw an "unrecognized selector" exception.

(Consistent "unrecognized selector" messages usually mean that some
code deliberately tried to call a method on an object that doesn't
implement the method.  These are very rare -- they're usually quickly
caught in testing.)

This bug is probably a dup of bug 477475 (which also involves KeyCue).
I've just posted a patch and tryserver build at bug 477475 comment
#54.  Please try it out.
Chris, I'd really like to be able to reproduce this bug (even with
KeyCue running).

Please give detailed, step-by-step instructions for reproducing it,
including one or more examples of specific URLs that have a textarea
to paste text into.
(In reply to comment #10)
> Chris, I'd really like to be able to reproduce this bug (even with
> KeyCue running).
> 
> Please give detailed, step-by-step instructions for reproducing it,
> including one or more examples of specific URLs that have a textarea
> to paste text into.

As I mentioned in comment #2, a useful url would be difficult to give you as the textareas that I paste into are found in iframes within frames within frames within iframes in a javascript RTE within the backend of our CMS. I'm in the CMS backend 8-10 hrs/day so that's where I've noticed the occurrences. I don't spend enough time in Firefox (or any other browser) outside of working hours that I've noticed it in my casual web browsing.

I've tried to note a repeatable instance but I unfortunately I can't give you one - it just happens and I can't tell when it's more likely to happen - only that when it does crash I was selecting command-v to paste.

I'm currently testing with KeyCue disabled. After that, (with KeyCue disabled) I'm going to try and see if perhaps it happens with more frequency when I'm maxxing out available RAM as I commonly do when running VMware Fusion.

I have also noted that I have not experienced a browser crash using Safari or Webkit. That's not meant to be a dig, just an observation that KeyCue or whatever may be causing it doesn't appear to affect Safari/Webkit.

Sorry I can't provide you with what you need but I will do my best to note the conditions after the next crash.
Chris:  Don't forget to test with the tryserver build at bug 477475 comment #54 (mentioned in comment #9 above).
(In reply to comment #12)
> Chris:  Don't forget to test with the tryserver build at bug 477475 comment #54
> (mentioned in comment #9 above).

Thank you Steven - I will. That's fantastic that you may have narrowed down the issue!
The only thing I can see after trying with various environments is that it will crash unpredictably when pasting text into a textarea *only* when KeyCue is enabled. I experienced a paste into textarea crash outside of the Typo3 backend so at least I know it wasn't localized to that location.

Steven - I tried to give your tryserver build a whirl but it seemed to cause some javascript issues in the program I work in (javascript-generated contextual menus in the Typo3 backend didn't work anymore.)
> Steven - I tried to give your tryserver build a whirl but it seemed
> to cause some javascript issues in the program I work in
> (javascript-generated contextual menus in the Typo3 backend didn't
> work anymore.)

The issue with contextual menus can't (I think) have had anything to
do with my patch.

But the tryserver build I mentioned in comment #9 is a trunk (aka
mozilla-central) build.  I'll make another one based on 1.9.1-branch
code (what FF 3.5 is built from), and announce it here.

Side note:  The contextual menus issue is presumably a bug in trunk
code.  Please try a current trunk nightly
(e.g. ftp://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-mozilla-central/firefox-3.6a1pre.en-US.mac.dmg) and see if the issue persists.

If it does persist, please consider opening a bug on the issue.  (I
just did a quick search and didn't turn up any obvious dups.)  I
suspect the issue is more specific than just "Javascript-generated
contextual menus don't work anymore" -- e.g. perhaps it's
Javascript-generated contextual menus on a particular kind of object
that no longer work.  I also suspect it's cross-platform (i.e. that
you'd also see it on Windows and Linux).
> But the tryserver build I mentioned in comment #9 is a trunk (aka
> mozilla-central) build.  I'll make another one based on 1.9.1-branch
> code (what FF 3.5 is built from), and announce it here.

It's at bug 477475 comment #55.

Chris, please try it out.
Chris, I really do need to hear from you about your tests with the tryserver build at bug 477475 comment #55.

Since I can't reproduce these crashes myself, you're my best/only source of information about them.
Not a problem - I will use this build exclusively and notify you of any crashes. I have been crash-free with the latest 3.5b5 nightly builds lately but that's possibly a coincidence.
> I have been crash-free with the latest 3.5b5 nightly builds lately
> but that's possibly a coincidence.

Are you still using KeyQue?  If not, please turn it back on.

If you're no longer able to reproduce this bug's crash without my
patch, your test results with my patch won't tell us very much.

So please try your best to reproduce the crashes in your current
nightly.  And (if you can) then try the same steps with my tryserver
build, and see if it makes any difference.
I am still using KeyCue.

What I do know:
1. It happens when I paste text from the clipboard into a textarea.
2. The clipboard-paste-to-textarea crash only occurs when KeyCue is enabled.
3. There is no repeatable step or steps that I have observed that will reliably produce this crash. It just happens.

That's the best I can give you aside from crash reports.
> That's the best I can give you aside from crash reports.

I know.  It's just that you *are* (or were) able to reproduce these crashes, and (I hope) have some kind of sixth sense how to go about it.

I'm totally unable to reproduce them.

If you no longer see these crashes on ordinary nightlies (without my patch), I guess the trail ends here ... at least for the time being.
Hey Steven,

I think whatever you tweaked in your tryserver build to remove the Firefox/KeyCue conflict - it works. While exclusively using it for a period, I hadn't experienced any crashes. I went back to the Firefox 3.5 nightly builds and the Firefox 3.0.x builds and I started experiencing crashes again.

Hope that helps.
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