Messages in this thread | | | Date | Sat, 17 Feb 2007 23:57:46 +0100 | From | Francois Romieu <> | Subject | netpoll again ? (was: Re: 2.6.20-git14 rtl8139 possible circular locking dependency detected) |
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Francois Romieu <romieu@fr.zoreil.com> : > Michal Piotrowski <michal.k.k.piotrowski@gmail.com> : > [...] > > Did you enable RTL8139_DEBUG ? > > If so you can try the patch below.
It's buggy there too but you are not experiencing this one.
1 - netpoll() calls the poll() handler of the device through netpoll_poll() 2 - The poll handler of the device tries to acquire dev->_xmit_lock through dev_mc_add during the Rx protocol processing 3 - netpoll() holds dev->_xmit_lock to avoid recursion in netpoll_poll()
#2 and #3 have opposite requirements.
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