From: Michael Buesch <mb@bu3sch.de>
To: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Broadcom Linux <bcm43xx-dev@lists.berlios.de>,
wireless <linux-wireless@vger.kernel.org>
Subject: Re: Problem with USB1.1 Host cores with the mb tree for bcm43xx_mac80211
Date: Wed, 7 Mar 2007 23:28:06 +0100 [thread overview]
Message-ID: <200703072328.06195.mb@bu3sch.de> (raw)
In-Reply-To: <45EF2015.8000802@lwfinger.net>
On Wednesday 07 March 2007 21:27, Larry Finger wrote:
> If you have a BCM4311 and are seeing an oops that looks like this when loading bcm43xx_mac80211:
>
> ssb: Switching to ChipCommon core, index 0
> ssb: Switching to PCI-E core, index 3
> ssb: Switching to USB 1.1 Host core, index 2
>
> Unable to handle kernel NULL pointer dereference at 00000000000002d0 RIP:
> [<ffffffff8812fcfd>] :usbcore:usb_create_hcd+0x3b/0xe8
> PGD 3e792067 PUD 3ed66067 PMD 0
> Oops: 0002 [1] SMP
> ...
>
> there is a temporary, unofficial patch at
> ftp://lwfinger.dynalias.org/patches/mac80211_usb_problem.patch. Although it works, it attacks the
> symptom, not the cause, and will never be adopted into the code. Once a proper fix is applied, it
> will no longer be needed.
A patch to disable the USB core on non-embedded devices is in my tree now.
The actual bug is still there, but nobody (except OpenWRT developers ;) )
should be able to hit it anymore now. :)
--
Greetings Michael.
next prev parent reply other threads:[~2007-03-07 22:29 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-07 20:27 Problem with USB1.1 Host cores with the mb tree for bcm43xx_mac80211 Larry Finger
2007-03-07 22:28 ` Michael Buesch [this message]
2007-03-07 22:56 ` Larry Finger
2007-03-08 7:56 ` Yanbo Li
2007-03-08 13:18 ` Michael Buesch
2007-03-09 2:24 ` Yanbo Li
2007-03-09 10:19 ` Michael Buesch
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