Closed Bug 225292 Opened 16 years ago Closed 15 years ago

memory corruption; page data and other stuff from one window appearing in another


(SeaMonkey :: General, defect, major)

Not set


(Not tracked)



(Reporter: wfbrodie, Unassigned)



(1 file)

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20031024
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20031024

One window has Oxford Dictionary open in it, the other has an online shopping
webpage.  OED text (see attachment) and some gibberish is appearing in the
rendering of the shopping webpage.

force-reloading it caused the corruption to go away; I've not been able to
reproduce it.

Reproducible: Couldn't Reproduce

Steps to Reproduce:
1. Open in one window, browse around a bit
2. Open in another window (1 hour+ later)
3. Click on link in musiclab, see corruption (5 mins later)

Actual Results:  
Text (and other data) from OED appearing in musiclab page.  It looks like the
data got in before the HTML parser - the input buffer being corrupted.

Expected Results:  
Keep input buffer disjoint from parse & render output ;)

The browser has not become unstable since the corruption (same process is still
running and I'm submitting this bugreport with it).

This has occurred only once and is not a major problem for me.  But it would
indicate that a pointer is escaping and has the opportunity to do more
significant damage in other circumstances.

I believe the hardware to be reasonably stable - it regularly has uptimes in the
multiple months, taken down only for kernel upgrades and NFS failures.  Machine
load at the time of corruption was high (100% utilisation, 700MB of 1GB RAM in
use), but no data appears to have got in from outside the mozilla process.  I 
trust the linux process model more than that anyway :)

One possible trigger is that /home may have been full at the time of corruption.
 I guess a failed write to the cache that is not caught might cause problems. 
Especially if a later read is not properly checked - it is just possible that
the page I went to was already visited and had been unsuccessfully installed in
the local cache.
as you can see, I'd just looked up 'embracement' in the OED.
Do you still see this on Mozilla 1.7 RC1 or later?

This looks somewhat like bug 241085.
Product: Browser → Seamonkey
This is an automated message, with ID "auto-resolve01".

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Closed: 15 years ago
Resolution: --- → EXPIRED
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