From: "Matt Carlson" <mcarlson@broadcom•com>
To: "Matt Carlson" <mcarlson@broadcom•com>
Cc: "Stephen Clark" <sclark46@earthlink•net>,
"Linux Kernel Network Developers" <netdev@vger•kernel.org>,
"Michael Chan" <mchan@broadcom•com>
Subject: Re: panic in tg3 driver
Date: Mon, 24 Jan 2011 18:25:32 -0800 [thread overview]
Message-ID: <20110125022532.GA19884@mcarlson.broadcom.com> (raw)
In-Reply-To: <20110125005922.GA19701@mcarlson.broadcom.com>
On Mon, Jan 24, 2011 at 04:59:22PM -0800, Matt Carlson wrote:
> On Sun, Jan 16, 2011 at 10:11:50AM -0800, Stephen Clark wrote:
> > On 01/13/2011 08:12 AM, Stephen Clark wrote:
> > > On 01/11/2011 10:06 PM, Matt Carlson wrote:
> > >> lspci -vvv -xxx -s 81:00.0
> > >
> > >
> > >
> > > Further information - I found these messages in /var/log/messages. It
> > > looks
> > > like after it switched to INTx mode interrupts for other devices were
> > > hosed.
> > >
> > > Jan 12 08:37:49 localhost kernel: tg3 0000:81:00.0: eth2: No interrupt
> > > was gener
> > > ated using MSI. Switching to INTx mode. Please report this failure to
> > > the PCI ma
> > > intainer and include system chipset information
> > > Jan 12 08:37:49 localhost kernel: ADDRCONF(NETDEV_UP): eth2: link is
> > > not ready
> > > Jan 12 08:38:50 localhost kernel: ata2: lost interrupt (Status 0x50)
> > > Jan 12 08:38:50 localhost kernel: ata2.01: exception Emask 0x0 SAct
> > > 0x0 SErr 0x0
> > > action 0x6 frozen
> > > Jan 12 08:38:50 localhost kernel: ata2.01: failed command: WRITE DMA
> > > Jan 12 08:38:50 localhost kernel: ata2.01: cmd
> > > ca/00:08:e0:bc:51/00:00:00:00:00/f0 tag 0 dma 4096 out
> > > Jan 12 08:38:50 localhost kernel: res
> > > 40/00:01:00:4f:c2/00:00:00:00:00/b0 Emask 0x4 (timeout)
> > > Jan 12 08:38:50 localhost kernel: ata2.01: status: { DRDY }
> > > Jan 12 08:38:50 localhost kernel: ata2: soft resetting link
> > > Jan 12 08:38:50 localhost kernel: do_IRQ: 0.64 No irq handler for
> > > vector (irq -1)
> > > Jan 12 08:38:50 localhost kernel: ata2.01: configured for UDMA/33
> > > Jan 12 08:38:54 localhost pppd[1983]: No response to 3 echo-requests
> > > Jan 12 08:39:55 localhost pppoe[1988]: Inactivity timeout... something
> > > wicked happened on session 3363
> > Just checking to make sure you have everything you need?
>
> Sorry for the delay Stephen.
>
> It looks to me like interrupts aren't being setup correctly on this
> system. I tested MSI and INTx interrupt modes locally and they both
> work. I'm guessing one of two things could be happening:
>
> 1) The 2nd parameter of the low-level ISR (tg3_interrupt_tagged()) is
> not correct. The ISR tries to tell the hardware the interrupt is
> acknowledged, but the message goes unheard. (This might also explain
> why other devices are also afflicted.)
>
> 2) Something is blocking the delivery of the interrupt to the tg3 driver
> altogether.
>
> In both cases, the hardware persistently nags the host to ack the
> interrupt, hence the interrupt storm.
Just curious, is the problem still there if you add pci=nomsi to the
kernel command line?
next prev parent reply other threads:[~2011-01-25 2:25 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4D2334B5.1060408@earthlink.net>
2011-01-09 22:30 ` panic in tg3 driver Stephen Clark
2011-01-10 19:22 ` Matt Carlson
2011-01-10 20:04 ` Stephen Clark
2011-01-11 2:00 ` Matt Carlson
2011-01-11 14:10 ` Stephen Clark
2011-01-12 3:06 ` Matt Carlson
2011-01-12 13:53 ` Stephen Clark
2011-01-13 13:12 ` Stephen Clark
2011-01-16 18:11 ` Stephen Clark
2011-01-25 0:59 ` Matt Carlson
2011-01-25 2:25 ` Matt Carlson [this message]
2011-04-13 18:23 ` Stephen Clark
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