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From: Adrian Bunk <bunk@stusta.de>
To: Adam Kropelin <akropel1@rochester.rr.com>
Cc: linux-pci@atrey.karlin.mff.cuni.cz,
	Auke Kok <auke-jan.h.kok@intel.com>,
	linux-kernel@vger.kernel.org
Subject: Re: MSI failure on nForce 430 (WAS: intel 82571EB gigabit fails to see link on 2.6.20-rc5 in-tree e1000 driver (regression))
Date: Fri, 2 Feb 2007 17:47:26 +0100	[thread overview]
Message-ID: <20070202164726.GH3754@stusta.de> (raw)
In-Reply-To: <023401c73cca$05bc5f00$84163e05@kroptech.com>

On Sat, Jan 20, 2007 at 02:34:37PM -0500, Adam Kropelin wrote:
> (cc: list trimmed and thread moved to linux-pci)
> 
> I have a PCI-E e1000 card that does not see interrupts on 2.6.20-rc5 
> unless CONFIG_PCI_MSI is disabled. An e1000 maintainer indicated that 
> the PHY state is correct, it's just that the interrupt is not getting 
> thru to the kernel. Interestingly, on 2.6.19 PHY interrupts get thru ok 
> with MSI enabled (link status responds appropriately) but packet tx 
> fails with timeout errors, implying that perhaps MAC interrupts are not 
> arriving.
> 
> I've attached the contents dmesg, 'lspci -vvv', and 'cat 
> /proc/interrupts' from 2.6.20-rc5.
> 
> This is an nForce 430 based chipset on a Dell E521 which has had 
> interrupt routing issues before. Prior to 2.6.19 it had to be booted 
> with 'noapic' in order to come up at all. It also had USB lockup 
> problems until I applied the latest BIOS update (v1.1.4). So a BIOS 
> interrupt routing bug with MSI is not out of the question.
> 
> I'm happy to gather more data or run tests...

Was this regression fixed by Eric's patch that is included in -rc7?

> --Adam

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed


  reply	other threads:[~2007-02-02 16:47 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-18  0:04 intel 82571EB gigabit fails to see link on 2.6.20-rc5 in-tree e1000 driver (regression) Adam Kropelin
2007-01-17 23:56 ` Auke Kok
2007-01-19 23:15   ` Adam Kropelin
2007-01-19 23:37     ` Auke Kok
2007-01-20  0:26       ` Adam Kropelin
2007-01-20  0:38         ` Auke Kok
2007-01-20 19:34           ` MSI failure on nForce 430 (WAS: intel 82571EB gigabit fails to see link on 2.6.20-rc5 in-tree e1000 driver (regression)) Adam Kropelin
2007-02-02 16:47             ` Adrian Bunk [this message]
2007-02-02 17:25               ` Auke Kok
2007-02-03  0:26                 ` Adam Kropelin
2007-01-20 19:35 Adam Kropelin

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