Closed
Bug 3119
Opened 26 years ago
Closed 25 years ago
crash - signing in crashes apprunner
Categories
(Core :: DOM: Core & HTML, defect, P3)
Tracking
()
VERIFIED
FIXED
M6
People
(Reporter: kerz, Assigned: karnaze)
References
()
Details
This site crashes the viewer when attempting to input user info into the form at
the bottom of the page. You must not have logged into the site prior to
attemting to recreate this.
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Comment 1•26 years ago
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per leger, assigning QA contacts to all open bugs without QA contacts according
to list at http://bugzilla.mozilla.org/describecomponents.cgi?product=Browser
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Updated•26 years ago
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QA Contact: 4110 → 4137
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Comment 2•26 years ago
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Reassigning qa contact to cpratt@netscape.com
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Comment 3•26 years ago
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Chris, this look like another case of the table intermingled with form crash
where a form element doesn't have an associated form frame. I'm working on
generating a minimal test case (Getting close).
http://blueviper/forms/submitcrash3.html
For a site named insidedhtml.com, this is some of the most convoluted, nasty
html I've seen - lots of unclosed and improperly nested tags...
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Comment 4•26 years ago
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Hmm, maybe not. It's crashing on this:
<HTML>
<LINK REL='stylesheet' TYPE='text/css' HREF='foo.css'>
<FORM>
<INPUT TYPE=submit>
</FORM>
</HTML>
If I remove the LINK it doesn't crash. :S
#0 0x40cdeae2 in main_arena ()
#1 0x403b53d2 in nsButtonControlFrame::MouseClicked (this=0x81e1e38,
aPresContext=0x824f3b0) at nsButtonControlFrame.cpp:319
#2 0x403b5b06 in nsButtonControlFrame::HandleEvent (this=0x81e1e38,
aPresContext=@0x824f3b0, aEvent=0xbffff3b4, aEventStatus=@0xbffff334)
at nsButtonControlFrame.cpp:517
#3 0x402feace in PresShell::HandleEvent (this=0x8204c88, aView=0x818f0d0,
aEvent=0xbffff3b4, aEventStatus=@0xbffff334) at nsPresShell.cpp:2102
#4 0x405987cc in nsView::HandleEvent (this=0x818f0d0, event=0xbffff3b4,
aEventFlags=28, aStatus=@0xbffff334) at nsView.cpp:824
#5 0x405a1a88 in nsViewManager::DispatchEvent (this=0x81a4598,
aEvent=0xbffff3b4, aStatus=@0xbffff334) at nsViewManager.cpp:1717
#6 0x405968c4 in HandleEvent (aEvent=0xbffff3b4) at nsView.cpp:63
#7 0x4005f452 in nsWidget::DispatchEvent (this=0x818f7b0, event=0xbffff3b4,
aStatus=@0xbffff370) at nsWidget.cpp:909
#8 0x4005f35c in nsWidget::DispatchWindowEvent (this=0x818f7b0,
event=0xbffff3b4) at nsWidget.cpp:871
#9 0x4005f510 in nsWidget::DispatchMouseEvent (this=0x818f7b0,
aEvent=@0xbffff3b4) at nsWidget.cpp:936
#10 0x4005c46e in handle_button_release_event (w=0x815a708, event=0x817dcf0,
p=0x818f7b0) at nsGtkEventHandler.cpp:541
#11 0x40a4545d in gtk_marshal_BOOL__POINTER (object=0x815a708,
func=0x4005c3a8 <handle_button_release_event(_GtkWidget *, _GdkEventButton
*, void *)>, func_data=0x818f7b0, args=0xbffff4a4) at gtkmarshal.c:32
#12 0x40a08dd7 in gtk_handlers_run (handlers=0x8155718, signal=0xbffff460,
object=0x815a708, params=0xbffff4a4, after=0) at gtksignal.c:1909
#13 0x40a082bf in gtk_signal_real_emit (object=0x815a708, signal_id=21,
params=0xbffff4a4) at gtksignal.c:1469
#14 0x40a06500 in gtk_signal_emit (object=0x815a708, signal_id=21)
at gtksignal.c:552
#15 0x40a3cb18 in gtk_widget_event (widget=0x815a708, event=0x817dcf0)
at gtkwidget.c:2788
#16 0x409da312 in gtk_propagate_event (widget=0x815a708, event=0x817dcf0)
at gtkmain.c:1327
#17 0x409d961c in gtk_main_do_event (event=0x817dcf0) at gtkmain.c:784
#18 0x40a86b56 in gdk_event_dispatch (source_data=0x0,
current_time=0xbffff828, user_data=0x0) at gdkevents.c:2086
#19 0x40ab5576 in g_main_dispatch (current_time=0xbffff828) at gmain.c:644
#20 0x40ab5ab1 in g_main_iterate (block=1, dispatch=1) at gmain.c:851
#21 0x40ab5c29 in g_main_run (loop=0x817d9e8) at gmain.c:909
#22 0x409d9065 in gtk_main () at gtkmain.c:507
#23 0x400547cc in nsAppShell::Run (this=0x8078648) at nsAppShell.cpp:208
#24 0x8052f12 in nsNativeViewerApp::Run (this=0x8070138) at nsGTKMain.cpp:42
#25 0x8053120 in main (argc=1, argv=0xbffff904) at nsGTKMain.cpp:97
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Comment 5•26 years ago
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Chris, would there be anything wrong with me replacing nsFormFrameTable's Put
method with one that checks to make sure this entry is not a duplicate content
mapping (and overwrites the previous content mapping if it is)? That is the
source of the bug. Here's what's happening:
Form frame (F) is created for form content (C).
Form stores pointer from content (C) to frame (F) in the frame table.
Elements created, look up frame pointer in the table and get (F). (cached)
A style sheet is encountered.
The document is reframed (even when the style sheet is not loaded :p)
Form frame (G) is created for form content (C).
Form appends pointer from content (C) to frame (G) to the frame table.
Elements created, look up frame pointer in the table and get (F).
(This is the first pointer encountered even though it is the wrong one)
The original frame (F) is destroyed and removes its mapping from frame table.
Now, when the form is submitted (or probably any number of other things that
could be done through javascript), the elements defererence a cached pointer to
frame (F).
CRASH.
Also, I noticed that nsFormFrameTable's Remove method creates a fixed size
"HitList" array but never checks to see if that array size is exceeded when
writing to the HitList. Why is the HitList needed? Would it be safe to remove
it entirely?
I've tested both of the above changes in my tree (including the appropriate
refcounting magic) and this crash goes away.
Also, I noticed that you and Kipp have been having a source code comments
discussion about the accuracy improvements and possible unproven performance
benefits that could be had by switching to FindFrameWithContent (or
GetPrimaryFrameFor). It doesn't look like FindFrameWithContent has been moved
over to a hash table yet, so are you of the opinion that I should leave in the
nsFormFrameTable optimization/hack? If you want, I'd be willing to run some
quick performance tests to see if it is worth changing over...
I'll attach the put/get diff in a sec. (P.S. I'm not time-travelling, just felt
like foregoing sleep tonight. :))
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Comment 6•26 years ago
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One possible solution:
Index: nsFormFrame.cpp
===================================================================
RCS file: /cvsroot/mozilla/layout/html/forms/src/nsFormFrame.cpp,v
retrieving revision 3.28
diff -c -r3.28 nsFormFrame.cpp
*** nsFormFrame.cpp 1999/04/03 22:55:07 3.28
--- nsFormFrame.cpp 1999/04/13 11:59:48
***************
*** 171,198 ****
nsFormFrame& aFormFrame)
{
NS_ADDREF(&aFormElem);
mEntries.AppendElement(new nsFormFrameTableEntry(aPresContext, aFormElem, a$
}
void
nsFormFrameTable::Remove(nsFormFrame& aFormFrame)
{
- PRInt32 hits[10];
- PRInt32 hitIndex = 0;
PRInt32 count = mEntries.Count();
! PRInt32 i;
! for (i = 0; i < count; i++) {
nsFormFrameTableEntry* entry = (nsFormFrameTableEntry *)mEntries.ElementA$
if (entry->mFormFrame == &aFormFrame) {
- hits[hitIndex] = i;
- hitIndex++;
NS_IF_RELEASE(entry->mFormElement);
}
}
- for (i = hitIndex-1; i >= 0; i--) {
- delete mEntries.ElementAt(i);
- mEntries.RemoveElementAt(i);
- }
}
--- 171,205 ----
nsFormFrame& aFormFrame)
{
NS_ADDREF(&aFormElem);
+
+ // Find the FormElement if it is already in the list.
+ PRInt32 count = mEntries.Count();
+ for (PRInt32 i = 0; i < count; i++) {
+ nsFormFrameTableEntry* entry = (nsFormFrameTableEntry *)mEntries.ElementA$
+ if (entry->mFormElement == &aFormElem) {
+ NS_IF_RELEASE(entry->mFormElement); // Free up the previous reference t$
+ entry->mFormElement = &aFormElem; // Create a new one
+ entry->mFormFrame = &aFormFrame; // Update the frame pointer
+ return;
+ }
+ }
+
mEntries.AppendElement(new nsFormFrameTableEntry(aPresContext, aFormElem, a$
}
void
nsFormFrameTable::Remove(nsFormFrame& aFormFrame)
{
PRInt32 count = mEntries.Count();
! for (PRInt32 i = 0; i < count; i++) {
nsFormFrameTableEntry* entry = (nsFormFrameTableEntry *)mEntries.ElementA$
if (entry->mFormFrame == &aFormFrame) {
NS_IF_RELEASE(entry->mFormElement);
+ delete mEntries.ElementAt(i);
+ mEntries.RemoveElementAt(i);
+ i--;
}
}
}
***************
*** 682,687 ****
--- 689,695 ----
// Hack to get the document from the parent HTML Frame.
// We need this to find the base URL for submitting forms that are created in$
+ // When GetDocumentURL() and GetBaseURL() are fixed this can go away.
nsIDocument*
nsFormFrame::GetParentHTMLFrameDocument(nsIDocument* doc) {
nsIDocument* parentDocument = nsnull;
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Comment 7•26 years ago
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Opps, looks like the lines got chopped - but you get the idea. :)
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Updated•25 years ago
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Target Milestone: M6
Summary: Signing in crashes the viewer. → crash - signing in crashes apprunner
using build id 1999042608 on NT, this is still a crasher.
talkback id: DZL46CMG
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Updated•25 years ago
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Assignee: pollmann → karnaze
Status: ASSIGNED → NEW
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Updated•25 years ago
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Status: NEW → RESOLVED
Closed: 25 years ago
Resolution: --- → FIXED
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Comment 9•25 years ago
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Chris, you removed all of the nsFormFrameTable code today and fixed this bug! :)
Reassigning to you then marking it fixed!
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Comment 10•25 years ago
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Doesn't crash...
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Updated•6 years ago
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Component: HTML: Form Submission → DOM: Core & HTML
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Description
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