From: Stanislaw Gruszka <sgruszka@redhat.com>
To: Arend van Spriel <arend@broadcom.com>
Cc: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: Re: oops upon driver unload
Date: Tue, 13 Mar 2012 15:39:17 +0100 [thread overview]
Message-ID: <20120313143916.GA2396@redhat.com> (raw)
In-Reply-To: <4F5F4300.6090103@broadcom.com>
On Tue, Mar 13, 2012 at 01:52:16PM +0100, Arend van Spriel wrote:
> During testing I got an OOPS with the brcmsmac (see attachment). I
> suspect mac80211 is using a driver callback after the module is
> removed (could be wrong here). The connection with the AP is
> dropped, and after 1 sec. the driver is unloaded using rmmod, which
> causes the driver to unregister from mac80211.
>
> Any clues?
[snip]
> Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] Call Trace:
> Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] [<c103f0ea>] ? run_timer_softirq+0x11a/0x2d0
Those options are useful to debug such problems:
CONFIG_DEBUG_OBJECTS=y
CONFIG_DEBUG_OBJECTS_FREE=y
CONFIG_DEBUG_OBJECTS_TIMERS=y
CONFIG_DEBUG_OBJECTS_WORK=y
Stanislaw
next prev parent reply other threads:[~2012-03-13 14:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-13 12:52 oops upon driver unload Arend van Spriel
2012-03-13 13:00 ` Johannes Berg
2012-03-13 15:27 ` Arend van Spriel
2012-03-13 14:39 ` Stanislaw Gruszka [this message]
2012-03-13 15:27 ` Arend van Spriel
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