Yong Zhang wrote:
quoted text
> I suspect it's introduced by commit 5c40cbfefa828208c671e2f58789e4dd04f79563
> which call del_timer_sync() in softirq.
> 
> comments on del_timer_sync() say "It must not be called from interrupt contexts."

I hope the del_timer_sync kerneldoc comment is about hardIRQ context,
*otherwise* commit 5c40cbfe is defective indeed.

The firewire stack calls del_timer_sync in process or softIRQ context
(firewire-ohci tasklets, block layer soft IRQ, networking soft IRQ...)
but never from hardIRQ.
-- 
Stefan Richter
-=====-==-=- =--- =---=
http://arcgraph.de/sr/
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