On Fri 2016-12-09 00:19:43, Francois Romieu wrote: > Lino Sanfilippo <linosanfili...@gmx.de> : > [...] > > OTOH Pavel said that he actually could produce a deadlock. Now I wonder if > > this is caused by that locking scheme (in a way I have not figured out yet) > > or if it is a different issue. > > stmmac_tx_err races with stmmac_xmit.
Umm, yes, that looks real. And that means that removing tx_lock will not be completely trivial :-(. Lino, any ideas there? netif_tx_lock_irqsave() would help, but afaict that one does not exist. Plus, does someone know how to trigger the status == tx_hard_error? I tried powering down the switch, but that did not do it. Thanks, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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