[Bugme-new] [Bug 13638] New: rt2870 driver is broken for (some) cards

[bugzilla-daemon at bugzilla.kernel.org]

http://bugzilla.kernel.org/show_bug.cgi?id=13638

               URL: http://bbs.archlinux.org/viewtopic.php?id=73964
           Summary: rt2870 driver is broken for (some) cards
           Product: Networking
           Version: 2.5
    Kernel Version: 2.6.30
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Wireless
        AssignedTo: networking_wireless at kernel-bugs.osdl.org
        ReportedBy: jakob.gruber at kabelnet.at
        Regression: Yes


The issue is described here:

http://bbs.archlinux.org/viewtopic.php?id=73964

in the first 2 posts.

Short summary:

"The problem appears if I run
ifconfig ra0 down
the command doesn't complete, produces no output and causes many other prolems.
Examples: I lose the VT where I ran this. I can't cancel it with CTRL+C. Not
even sysrq is able to recover it. Everything using PAM begins to fail, if I run
sudo in a VT, i lose it (this might be related to your mounting problem). X
crashes. Wicd stalls, the process can't be shut down any more. The reason fot
this is that many networking applications "cylce" the interface once before
using it to clear left-over configurations.
I can't even shutdown anymore if I don't use the -n option. The whole system
basically goes down the drain."

Affected cards: 

* Belkin F5D8053 N Wireless USB Adapter
* Trendnet USB stick

Fix:

* downgrade to 2.6.29
* or use the v2.1.2.0 drivers from
http://www.ralinktech.com.tw/data/drivers/2009_0521_RT2870_Linux_STA_V2.1.2.0.tgz

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