From: Grant Grundler <grundler@parisc-linux.org>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: Grant Grundler <grundler@parisc-linux.org>,
Andrew Morton <akpm@osdl.org>,
netdev@vger.kernel.org, Val Henson <val.henson@gmail.com>
Subject: Re: PATCH 2.6.17-rc5 tulip free_irq() called too late
Date: Thu, 8 Jun 2006 09:36:26 -0600 [thread overview]
Message-ID: <20060608153626.GE8246@colo.lackof.org> (raw)
In-Reply-To: <44884317.8070601@pobox.com>
On Thu, Jun 08, 2006 at 11:32:39AM -0400, Jeff Garzik wrote:
> >The chip IRQ gets turned off in tulip_down().
> >It won't be screaming for very long.
>
> Then you admit that you add a race.
Yes - I realized that after I hit <send> :(
...
> >In the shared IRQ case, I expect free_irq() to unlink this instance
> >of the tulip interrupt handler from the CPU vector list. If that
>
> Irrelevant -- that doesn't stop the tulip hardware from raising the irq,
> nor stop the system from attempting to deliver it [in all cases]. In
> the shared interrupt case, that means that another driver's irq handler
> will be called for an event tulip hardware raised.
*nod*
thanks,
grant
next prev parent reply other threads:[~2006-06-08 15:36 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-31 19:52 PATCH 2.6.17-rc5 tulip free_irq() called too late Grant Grundler
2006-06-08 14:43 ` Jeff Garzik
2006-06-08 15:22 ` Grant Grundler
2006-06-08 15:32 ` Grant Grundler
2006-06-08 15:38 ` Jeff Garzik
2006-06-08 15:47 ` Grant Grundler
2006-06-08 15:32 ` Jeff Garzik
2006-06-08 15:36 ` Grant Grundler [this message]
2006-06-08 17:01 ` Grant Grundler
2006-06-13 23:55 ` PATCHv3 " Grant Grundler
2006-06-14 0:06 ` Valerie Henson
2006-06-14 0:33 ` Jeff Garzik
2006-06-14 4:44 ` Grant Grundler
2006-06-14 13:05 ` Kyle McMartin
2006-06-14 14:54 ` Grant Grundler
2006-06-14 15:03 ` Jeff Garzik
2006-06-14 18:14 ` Grant Grundler
2006-06-14 19:51 ` Jeff Garzik
2006-06-14 22:25 ` Grant Grundler
2006-06-14 20:47 ` Francois Romieu
2006-06-14 22:30 ` Grant Grundler
2006-06-15 20:30 ` Francois Romieu
2006-06-16 5:47 ` Grant Grundler
2006-06-16 7:32 ` Jeff Garzik
2006-06-16 15:25 ` Grant Grundler
[not found] ` <20060616152400.GA7868@colo.lackof.org>
[not found] ` <4492CE98.50900@pobox.com>
2006-06-16 16:06 ` Grant Grundler
2006-06-16 16:16 ` Jeff Garzik
2006-06-22 0:43 ` Valerie Henson
2006-06-23 5:00 ` Grant Grundler
2006-06-26 22:31 ` [PATCH] Fix tulip shutdown DMA/irq race Valerie Henson
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