Le lundi 30 janvier 2012 à 14:41 +0000, Ben Hutchings a écrit : > On Mon, 2012-01-30 at 15:28 +0100, Eric Dumazet wrote: > > Le lundi 30 janvier 2012 à 14:05 +0000, Ben Hutchings a écrit : > > > > > Yes, I spotted that. But no descriptors are pushed to the hardware > > > here; that's done in the driver's TX tasklet. Although... maybe that > > > can run immediately when scheduled from here? I've never had to deal > > > with tasklets so I really don't know their semantics. > > > > Thats probable on SMP ... > > The bug report is for a UP system running a kernel built with > SMP-alternatives.
Hmm, TX _completion_ is not run from tasklet but hardware IRQ, this is why I added the spin_lock_irqsave(). Tasklet fires the TX, but hardware IRQ does the TX completion part. This driver is ... interesting :) -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
