287600 - Total system freeze when downloading page components.

Status: RESOLVED INVALID

(SeaMonkey :: General, defect)

Description

[Chris]

User-Agent:       Mozilla/4.0 (compatible; MSIE 6.0; Windows 98)
Build Identifier: 1.8b2 2005032406

On several different web pages/sites (but not every time on any page) my whole 
PC locks up - mouse and keyboard frozen. No error messages, no HDD activity, 
nothing. Ctrl-alt-del doesn't work - the only option is the reset button. After 
a reboot the browser will behave normally for an unpredictable length of time 
but usually within an hour it will lock up again. I have enabled Talkback but 
it doesn't start up in this circumstance. I also have had the same symptoms 
with Firefox 1.0.1 and 1.0.2. These events happened several times today with my 
first ever install of Mozilla on this machine. It has never happened with any 
version of Internet Explorer.

Reproducible: Sometimes

Steps to Reproduce:
1.Standard Mozilla install with latest nightly download.
2.No other apps running.
3.Browse any number of (reputable) websites.


Actual Results:  
Total system freeze.

Expected Results:  
Completed rendering the page.

Default Mozilla/Firefox theme.
Epox MVP3G5 mainboard (VIA chipset), AMD K6-2 500MHz CPU (not overclocked). 
196MB RAM. Matrox Millenium G200 graphics. Latest recommended drivers for all 
components and latest Windows Updates for 98SE. Hijackthis indicates no spyware 
or trojans. AntiVir Personal Edition virus scanner. Cybersitter. 

Process Explorer log shows what is normally running on my PC (excepting 
Mozilla):

Process	PID	CPU	Description	Company Name
Idle	0x0	95.57	System Idle Process	
KERNEL32.DLL	0xFFEF5AC1	0.39	Win32 Kernel core component
	Microsoft Corporation
 MSGSRV32.EXE	0xFFFF1AE1		Windows 32-bit VxD Message Server
	Microsoft Corporation
  SPOOL32.EXE	0xFFFF1299		Spooler Sub System Process
	Microsoft Corporation
  MPREXE.EXE	0xFFFF044D		WIN32 Network Interface Service Process
	Microsoft Corporation
   SAGENT4.EXE	0xFFFF8A75	1.08	SAgent4	SEIKO EPSON CORPORATION
  mmtask.tsk	0xFFFE6609		Multimedia background task support 
module	Microsoft Corporation
  EXPLORER.EXE	0xFFFE1571	0.10	Windows Explorer	Microsoft 
Corporation
   PDESK.EXE	0xFFFEFFD5	0.10	PDesk	Matrox Graphics Inc.
   TASKMON.EXE	0xFFFEFAB5		Task Monitor	Microsoft Corporation
   SYSTRAY.EXE	0xFFFEF4DD		System Tray Applet	Microsoft 
Corporation
   POINT32.EXE	0xFFFEA3BD		Cursor features application file
	Microsoft Corporation
   AVGCTRL.EXE	0xFFFDDAC5	0.10	AntiVir Guard/9x Control Program
	H+BEDV Datentechnik GmbH
   CCTRAY.EXE	0xFFFD7A05		Crowd Control Tray Application	Sahalie 
Software, LLC
   CYB2K.EXE	0xFFFD631D	1.97	CYBERsitter Control Panel	Solid 
Oak Software, Inc.
   PROCEXP.EXE	0xFFFCC7D9	0.69	Sysinternals Process Explorer
	Sysinternals

Comment 1

[Chris]

I have read in other bug reports that system hangs are always caused by 
hardware faults or video driver faults in Win2k and XP, and cannot be caused by 
Mozilla. Is this also *always* the case in Windows 98SE?

Comment 2

[Andrew Schultz]

It's true in any operating system.  Managing the apps that are running is one of
the primary jobs of the operating system.  Try a newer video driver, or an older
one.  Or disable hardware acceleration.  Memory is the next most likely culprit.
 You can try memtest86, or just remove one chip of RAM at a time and see when
your computer and Mozilla play nicely together.

resolving INVALID -- this is not a Mozilla bug
good luck

Comment 3

[Andrew Schultz]

oops, resolving for real