From: Manu Abraham <abraham.manu@gmail.com>
To: Roland Dreier <rdreier@cisco.com>
Cc: Greg KH <greg@kroah.com>,
linux-pci@atrey.karlin.mff.cuni.cz,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: PCIE
Date: Fri, 25 May 2007 02:32:39 +0400 [thread overview]
Message-ID: <46561287.8020103@gmail.com> (raw)
In-Reply-To: <adatzu385g1.fsf@cisco.com>
Roland Dreier wrote:
> Why does the device come up in a state where it generates a stream of
> interrupts as soon as you enable the PCI device? That's somewhat
> unusual behavior, although certainly not unheard of.
>
In fact the device wasn't generating a stream of interrupts when loaded
(i guess). It was just that the shared handler was showing all the
interrupts that occurred, since i was not looking at the interrupt
mask/status.
But accessing any registers caused me a flood of interrupts, which froze
the system. excessive printing to the console caused a lockup.
I am now wondering whether the usage of MSI would help in this case and
that i should be using enable_msi before request_irq ?
next prev parent reply other threads:[~2007-05-24 22:33 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-23 12:15 PCIE Manu Abraham
2007-05-23 15:59 ` PCIE Greg KH
2007-05-23 20:59 ` PCIE Manu Abraham
2007-05-23 21:10 ` PCIE Roland Dreier
2007-05-23 22:11 ` PCIE Manu Abraham
2007-05-23 22:23 ` PCIE Roland Dreier
2007-05-23 23:03 ` PCIE Manu Abraham
2007-05-23 23:51 ` PCIE Roland Dreier
2007-05-24 0:07 ` PCIE Manu Abraham
2007-05-24 22:32 ` Manu Abraham [this message]
2007-05-25 3:25 ` PCIE Roland Dreier
2007-05-26 15:03 ` PCIE Manu Abraham
2007-05-26 18:28 ` PCIE Grant Grundler
2007-05-26 19:27 ` PCIE Manu Abraham
2007-05-28 1:15 ` PCIE Roland Dreier
2007-05-28 1:25 ` PCIE Manu Abraham
2007-05-28 2:04 ` PCIE Manu Abraham
2007-05-28 2:24 ` PCIE Roland Dreier
2007-05-28 2:47 ` PCIE Manu Abraham
2007-05-26 22:49 ` PCIE David Miller
2007-05-26 22:57 ` PCIE Manu Abraham
2007-05-26 23:55 ` PCIE Grant Grundler
2007-05-27 0:00 ` PCIE David Miller
2007-05-27 0:16 ` PCIE Grant Grundler
2007-05-27 0:30 ` PCIE David Miller
2007-05-27 1:01 ` PCIE Manu Abraham
2007-05-27 1:49 ` PCIE Grant Grundler
2007-05-27 20:28 ` PCIE Manu Abraham
2007-05-28 1:10 ` PCIE Roland Dreier
2007-05-27 2:34 ` PCIE H. Peter Anvin
2007-05-27 7:40 ` PCIE David Miller
2007-05-27 20:31 ` PCIE Manu Abraham
2007-05-28 1:05 ` PCIE Roland Dreier
2007-05-28 1:03 ` PCIE Roland Dreier
2007-05-28 2:54 ` PCIE David Miller
2007-05-28 4:18 ` PCIE Grant Grundler
2007-05-28 5:23 ` PCIE H. Peter Anvin
2007-05-28 5:22 ` PCIE H. Peter Anvin
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