Bug 8972 - zd1211 device is no longer configured
Summary: zd1211 device is no longer configured
Alias: None
Product: Drivers
Classification: Unclassified
Component: network-wireless (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Daniel Drake
Depends on:
Blocks: 9056
  Show dependency tree
Reported: 2007-09-03 04:58 UTC by Oliver Neukum
Modified: 2008-09-23 13:50 UTC (History)
3 users (show)

See Also:
Kernel Version: 2.6.23-rc4
Regression: Yes
Bisected commit-id:

patch (762 bytes, patch)
2007-12-03 06:07 UTC, Daniel Drake
Details | Diff
dmesg with zd1211 debug enabled (30.34 KB, text/plain)
2008-01-30 15:24 UTC, C

Description Oliver Neukum 2007-09-03 04:58:33 UTC
Most recent kernel where this bug did not occur: 2.6.22
Distribution: OpenSuse
Hardware Environment: x86_64
Software Environment:
Problem Description: The device no longer connects to the AP when configured

Steps to reproduce: Plug in and configure
Comment 1 John W. Linville 2007-09-05 06:29:23 UTC
Could you attach the output of dmesg?  And the output of iwconfig?  And ifconfig as well?  Thanks!
Comment 2 John W. Linville 2007-09-05 08:45:52 UTC
I see Daniel is already engaged w/ this on netdev (although linux-wireless@vger.kernel.org would be better)...
Comment 3 Rafael J. Wysocki 2007-09-26 14:26:56 UTC
References      : http://marc.info/?l=linux-usb-devel&m=118854967709322&w=2

Caused-By       : Daniel Drake <dsd@gentoo.org>
                  commit 74553aedd46b3a2cae986f909cf2a3f99369decc
Comment 4 Daniel Drake 2007-12-03 06:07:26 UTC
Created attachment 13837 [details]

The failure is in an odd place, it seems strange that this patch could have caused it. Anyway, please apply this patch on top of a broken kernel and modify it to provide your own MAC address. Then see if the problem still exists. It brings behaviour back closer to what it used to be.
Comment 5 C 2008-01-30 14:48:36 UTC
I probably have the same problem in 32bit mode.

I have the folowings information in the dmesg

zd1211rw 1-4.1:1.0: firmware version 4605
zd1211rw 1-4.1:1.0: zd1211 chip 0ace:1211 v4330 high 00-11-f6 RF2959_RF pa0 -----
zd1211rw 1-4.1:1.0: error ioread32(CR_REG1): -110

the problem stay the same with the patch applied.
Comment 6 C 2008-01-30 15:24:23 UTC
Created attachment 14651 [details]
dmesg with zd1211 debug enabled
Comment 7 C 2008-02-13 17:54:01 UTC
With the driver included in 2.6.25-rc1 my device is back alive.

I don't know if this info can help fixing the driver in 2.6.23/24 (this driver is a port to the news wifi stack)

But, at least in my case, waiting for 2.6.25 will fix the problem.

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