Bug#650495: linux-image-3.1.0-1-amd64: oops
Le mercredi 30 novembre 2011 à 14:25 +0000, Ben Hutchings a écrit :
> On Wed, 2011-11-30 at 03:05 -0600, Jonathan Nieder wrote:
> > Hi Tim,
> >
> > Tim Connors wrote:
> >
> > > ** Tainted: PWCO (5633)
> > > * Proprietary module has been loaded.
> > > * Taint on warning.
> > > * Module from drivers/staging has been loaded.
> > > * Out-of-tree module has been loaded.
> >
> > Thanks for reporting this, but we're not going to look into it unless
> > you can reproduce it without the nvidia driver. Sorry.
> >
> > If you can reproduce it with the nvidia driver and not without, that's
> > fine too, since in that case we can pass it on to the nvidia driver
> > packagers (who would presumably help you file a report with nvidia).
>
> Actually this bug is really obvious (to me). It's this change:
>
> commit 4924f44b97a034dbf44c14b709b0b0907ee23f04
> Author: Eric Dumazet <eric.dumazet@gmail.com>
> Date: Mon Jul 4 17:57:10 2011 -0700
>
> b44: use dev_kfree_skb() in b44_tx()
>
> Eric didn't take into account that b44_poll() masks IRQs while calling
> b44_tx(). So we need to revert that (or fix b44_tx() to not do that, as
> it's unlikely to be necessary).
Yes, this was reverted in mainline : 15ac2b08a2fd0f (b44: Use
dev_kfree_skb_irq() in b44_tx())
Apparently some people think NAPI must run with IRQ disabled...
Oh well...
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