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Re: oops upon driver unload

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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 
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