lkml.org 
[lkml]   [2007]   [May]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: PCIE
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 ?

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-05-25 00:35    [W:1.118 / U:0.236 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site