654881 - Kernel panic from Cisco VPN and internal network websites

Status: RESOLVED INVALID

(Firefox :: Session Restore, defect)

Description

[Pam]

User-Agent:       Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.16) Gecko/20110322 Fedora/3.6.16-1.fc14 Firefox/3.6.16
Build Identifier: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.16) Gecko/20110322 Fedora/3.6.16-1.fc14 Firefox/3.6.16

This is an annoying one to repro, but here's my info:
- Fedora 14
- No plugins besides the defaults
- Tabbed browsing disabled, google.com as homepage, otherwise default settings
- Both times happened on internal network (VPN) sites, but I access said
  sites all the time.
- Dell Latitude E6410 (hope it doesn't come down to that, haha)

Steps to repro:
1. Open a single browser window and go into about:config
2: Find browser.sessionstore.resume_from_crash and set it to false
3. Close Firefox and reopen. (habit of mine so I'm sure it's saved)
4. Just browse for awhile like normally. Eventually the OS will kernel panic. First KP happened when clicking a link, second happened when clicking a button that takes me to a different page. (no ajax tricks)

Happened to me twice before I changed the browser.sessionstore.resume_from_crash setting back to true in a similar fashion, and it hasn't happened since. Both crash sessions lasted under an hour, whereas I've gone five hours since changing it without incident.

While it's a slightly outdated version of firefox vs. what's in the FC14 repository(by five days), the fix list didn't seem to acknowledge this issue.


Reproducible: Always

Steps to Reproduce:
see details. reproducibility would be more like "happens every time, but takes random amount of clicks/time"

Actual Results:  
Kernel panic

Expected Results:  
No kernel panic

Comment 1

[Paul O'Shannessy [:zpao] (not bugmail, email directly)]

This doesn't seem like it should be connected to that pref at all. That just controls under what conditions we save a file...

Comment 2

[u279076]

Does this happen in the latest Nightly version?

Comment 3

[Pam]

What is a "Nightly version"?

The latest version in the repo for FC14 is 3.6.17. Is that what you mean?

Comment 4

[u279076]

Sorry, I meant the Linux i686 or Linux x86_64 build from:
ftp://ftp.mozilla.org/pub/firefox/nightly/latest-mozilla-central/

Comment 5

[Pam]

So I had the wrong cause for this bug.

It seems that the real bug is when using Cisco VPN, Firefox 3.6.17 KP's sometimes when accessing a page in our internal network.
Chrome 11 also has this problem, but Lynx and Arora do not. So it's probably an issue with some library that both Firefox 3.6.17 shares with Chrome 11. (and for some reason, Arora doesn't use)

I had gone at least days without the issue cropping up before changing browser.sessionstore.resume_from_crash, so I thought that was the cause. I don't really access internal network websites all that often, though, so maybe I was just lucky beforehand. It seems to be pretty frequent now.

Also, sorry for the late reply, and sorry if this is already known...

Comment 6

[Matthias Versen [:Matti]]

It's a kernel bug of you get a kernel panic.
This is never the fault of a usermode application like Firefox or Chrome.