Messages in this thread | ![/](/images/icornerl.gif) | | Date | Sat, 26 Jul 2008 12:53:08 +0200 | From | Jarek Poplawski <> | Subject | Re: Kernel WARNING: at net/core/dev.c:1330 __netif_schedule+0x2c/0x98() |
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On Sat, Jul 26, 2008 at 02:18:46AM -0700, David Miller wrote: > From: Jarek Poplawski <jarkao2@gmail.com> > Date: Fri, 25 Jul 2008 22:01:37 +0200 > > > On Fri, Jul 25, 2008 at 09:36:15PM +0200, Johannes Berg wrote: > > > On Fri, 2008-07-25 at 21:34 +0200, Jarek Poplawski wrote: > > > > > > No, we need to be able to lock out multiple TX paths at once. > > > > IMHO, it can do the same. We could e.g. insert a locked spinlock into > > this noop_tx_handler(), to give everyone some waiting. > > I think there might be an easier way, but we may have > to modify the state bits a little.
Yes, this looks definitely easier, but here is this one little bit more, plus additional code to handle this in various places. Ingo's proposal needs a (one?!) bit more thinking in one place, but it shouldn't add even a bit to tx path (and it looks really cool!). Of course, it could be re-considered in some other time too.
BTW, it seems with "Ingo's method" this netif_queue_stopped() check could be removed too - the change of handlers could be done with single qdiscs as well.
Jarek P.
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