Bug 450401 - hard freeze activating wlan rt2500 after kernel upgrade to
Summary: hard freeze activating wlan rt2500 after kernel upgrade to
Status: CLOSED DUPLICATE of bug 451422
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 8
Hardware: i686
OS: Linux
Target Milestone: ---
Assignee: John W. Linville
QA Contact: Fedora Extras Quality Assurance
: 452350 (view as bug list)
Depends On:
TreeView+ depends on / blocked
Reported: 2008-06-07 18:49 UTC by Dennis Bruno
Modified: 2008-08-26 15:37 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2008-08-26 15:37:38 UTC
Type: ---

Attachments (Terms of Use)
excerpt of var/log/messages containing wlan activation attempts (7.47 KB, text/plain)
2008-06-15 15:24 UTC, Dennis Bruno
no flags Details
dmesg with kernel errors after inserting rt2500 card (23.87 KB, text/plain)
2008-06-21 17:35 UTC, Bob Hockney
no flags Details
log of failed association (4.76 KB, text/plain)
2008-07-07 17:04 UTC, Bob Hockney
no flags Details

Description Dennis Bruno 2008-06-07 18:49:42 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20080416 Fedora/ Firefox/

Description of problem:
Upgraded to new kernel ( from via PUP.  Upon reboot, computer freezes when trying to activate wlan Linksys wireless 54gV4 PCI wlan card (RT2500 driver).  Works fine under prior kernel.  No messages in log, no kernel panic,just hard freeze when trying to activate card.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1.boot kernel
2.try to activate wlan card eithe automatically in Network Manager, or manually
3.computer hard freezes

Actual Results:
computer hard freezes, can only power down and reboot.  works fine under prior kernel.

Expected Results:
wlan card should have activated.

Additional info:
None.  Nothing is written to log

Comment 1 Roberto Ragusa 2008-06-08 19:34:39 UTC
This has been happening to me on older fc8 kernels too.

And it also happens on fc9 (
My hardware is a PCMCIA rt2500 card (Edimax), which was usable with
the old ralink driver.
When I plug in the board, the driver is loaded and the system locks up
immediately or after a few seconds (memory corruption).

A stack trace of mine is available here:

Finger pointed to locking, interrupts, sleeping in the rt2500 driver.

Comment 2 David W. Legg 2008-06-11 15:35:20 UTC
I too get this with a Ralink RT2500 PCMCIA card with the latest Fedora 9 kernel
(to date).  Can look up more info later if you wish.  The previous Fedora 9
kernel works fine, but the latest one crashed a second after you plug the card in.
The kerneloops service has reported the incident.  As I say, ask if you want
more info.

Comment 3 Eric Tanguy 2008-06-11 21:04:33 UTC
I have the same problem. In fact at boot up with the wlan card acitivated at
boot the system try to enable wlan0 for an infinte time. If i disable wlan0 at
boot and i try to activate wlan0 from grome i obtain a hard freeze. 

Comment 4 John W. Linville 2008-06-12 12:24:28 UTC
Please try -39.fc9 or later:


Those contain this fix: "rt2x00: Use atomic interface iteration in irq 
context".  Do the later kernels resolve the issue for you?

Comment 5 Eric Tanguy 2008-06-14 07:34:03 UTC
I tried kernel- which is an updates-testing and contain this fix.
No more hard freeze but impossible to associate to the access point.

Comment 6 Mostafa Afgani 2008-06-15 11:38:38 UTC
Yes, I can also verify that rt2500pci from kernel- does not
associate with the AP.

Comment 7 Dennis Bruno 2008-06-15 15:24:40 UTC
Created attachment 309399 [details]
excerpt of var/log/messages containing wlan activation attempts

Comment 8 Dennis Bruno 2008-06-15 15:29:17 UTC
Addendum to comment #7 (sorry for multiple posts).  Tried kernel  Hard freeze now gone, but cannot associate with AP either. 
Messages in above attachment.  AP is WPA2-PSK.  Original passphrase stored in
keychain, but after first attempt, NetworkManager prompts me to input, but
activation fails anyway, and I get prompted again (until I cancel).

Comment 9 Bob Hockney 2008-06-21 17:35:04 UTC
Created attachment 309979 [details]
dmesg with kernel errors after inserting rt2500 card

I get kernel error messages but no hard freeze with the rt2500.  With testing
kernel no errors but can't associate with AP.  Another card with a differnt
chipset works fine.

Comment 10 John W. Linville 2008-06-24 12:28:28 UTC
*** Bug 452350 has been marked as a duplicate of this bug. ***

Comment 11 Mostafa Afgani 2008-07-04 17:50:42 UTC
Association still times out with kernel-

Comment 12 Paul van Maaren 2008-07-06 10:34:48 UTC
Kernel fixed the hard freeze for me and works like expected, but
with kernel I cannot associate using wpa_supplicant.

Comment 13 John W. Linville 2008-07-07 14:14:12 UTC
You might wisht to try -46.fc8:


Does that help with wpa_supplicant?

Comment 14 Bob Hockney 2008-07-07 17:04:21 UTC
Created attachment 311195 [details]
log of failed association

still unable to associate with -46 kernel

Comment 15 Paul van Maaren 2008-07-07 21:59:43 UTC
For me too, still unable to associate with -46.fc8 kernel

Comment 16 Mostafa Afgani 2008-07-09 08:04:55 UTC
Same story with both -47.fc8 and -48.fc8.

Comment 17 Eric Tanguy 2008-07-15 15:50:10 UTC
Same with kernel-
This bug is opened since 5 weeks. It's quite a long time ...

Comment 18 Mostafa Afgani 2008-08-25 22:53:27 UTC
Just tried from Koji. Still doesn't work .. (i.e. authentication with AP times out).

Comment 19 John W. Linville 2008-08-26 13:17:29 UTC
Hmmm...well "AP times out" sounds different than "hard freeze".  Perhaps the problem you are seeing now is the same as bug 451422?

Comment 20 Eric Tanguy 2008-08-26 14:07:15 UTC
John, problems of association and times out are part of this bug since a long time see for example comment 5.

Comment 21 Mostafa Afgani 2008-08-26 15:14:47 UTC
Hi John, I suppose it might be same as bug 451422 but the end result is still the same. I've had to stick with a 2.6.24 series kernel for at least two months now ..

Comment 22 John W. Linville 2008-08-26 15:37:38 UTC
Please use bug 451422 for the association problems.  I'm sorry I didn't notice the change back in June.

*** This bug has been marked as a duplicate of bug 451422 ***

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