linux-kernel - Re: 2.6.29-rc8: Reported regressions from 2.6.28

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Message-ID: <b6a2187b0903182025y5552900cu6213a4f4eafeb6e6@mail.gmail.com>
Date:	Thu, 19 Mar 2009 11:25:44 +0800
From:	Jeff Chua <jeff.chua.linux@...il.com>
To:	Johannes Berg <johannes@...solutions.net>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Adrian Bunk <bunk@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Network Development <netdev@...r.kernel.org>,
	"John W. Linville" <linville@...driver.com>
Subject: Re: 2.6.29-rc8: Reported regressions from 2.6.28

On Thu, Mar 19, 2009 at 10:58 AM, Jeff Chua <jeff.chua.linux@...il.com> wrote:
> I've tracked down to the sequence of iwconfig that causes it to fail.

> This loop only works 8 of 10 times with/without the patch.
>        iwconfig wlan0 mode Managed essid xxx key restricted xxx
>        iwconfig wlan0 ap auto channel auto  # auto outside loop
>        for((i = 0; i < 5; i++))
>        do
>                iwconfig wlan0 | grep -q "Not-Associated"
>                [ $? -ne 0 ] && break
>                echo ".\c"
>                sleep 1
>        done


I've modified it a little, and now it works 100% without patch, by
using "iwlist scan" instead of "sleep 1" ...
        iwconfig wlan0 mode Managed essid xxx key restricted xxx
        iwconfig wlan0 ap auto channel auto  # auto outside loop
        for((i = 0; i < 5; i++))
        do
                iwlist wlan0 scan >/dev/null  #use scan instead of sleep
                iwconfig $DEV | grep -q "Access Point: Not-Associated"
                [ $? -ne 0 ] && break
                echo ".\c"
        done


So, this will work for older kernel and well as 2.6.29-rc8.

Rafael, can we close the case? It's the iwconfig sequence that used to
work on 2.6.28-rc3 but now needs to be updated for 2.6.29-rc8.

Thanks,
Jeff.
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