Re: Regression: sky2 kernel between 3.1 and 3.2.1 (last known good3.0.9)

[Michael Breuer]

On 1/20/2012 11:44 AM, Michael Breuer wrote:
> On 1/20/2012 11:26 AM, Stephen Hemminger wrote:
> > On Mon, 16 Jan 2012 11:39:13 -0500
> > Michael Breuer<mbreuer@xxxxxxxxxx>  wrote:
> >
> > > Synopsis:
> > >
> > > Receiving DMAR and other errors after approximately three days of
> > > uptime. The symptoms exactly match errors seen and then fixed around
> > > 2.6.32.4.
> > >
> > > While the system remains unaffected for too long to do a bisect, I was
> > > able to confirm that the problem exists in the 3.1 stable branch (I
> > > jumped from 3.0 to 3.2 when 3.2. was released).
> > >
> > > For now I reverted to the sky2.c from 3.0.9 and am running the rest of
> > > the kernel from 3.1.2, but won't be certain that this works until later
> > > in the week.
> > >
> > > Note that 20 seconds prior to the log extract below were DHCP renewal
> > > attempts on eth1, the issue below was on eth0. Not sure it's relevant,
> > > however back in 2010 a preceding DHCP event did turn out to be relevant
> > > to the manifestation of the bug.
> > >
> > > The 3.2.1-dirty I'm running is from git with a single local patch - for
> > > sidewinder force-feedback support (shouldn't be relevant to the sky2 
> > > issue).
> > >
> > > Log extract:
> > >
> > > Jan 16 05:49:46 mail kernel: [198230.628919] DRHD: handling fault 
> > > status
> > > reg 2
> > > [snip]
> >
> > Which exact chip version is this?
> >    dmesg | grep sky2
> >    lspci
> [    9.927143] sky2: driver version 1.29
> [    9.927166] sky2 0000:06:00.0: PCI INT A -> GSI 18 (level, low) -> 
> IRQ 18
> [    9.927177] sky2 0000:06:00.0: setting latency timer to 64
> [    9.927254] sky2 0000:06:00.0: Yukon-2 EC Ultra chip revision 3
> [    9.927339] sky2 0000:06:00.0: irq 71 for MSI/MSI-X
> [    9.927562] sky2 0000:06:00.0: eth0: addr 00:26:18:00:1c:3b
> [    9.927578] sky2 0000:04:00.0: PCI INT A -> GSI 17 (level, low) -> 
> IRQ 17
> [    9.927586] sky2 0000:04:00.0: setting latency timer to 64
> [    9.927640] sky2 0000:04:00.0: Yukon-2 EC Ultra chip revision 3
> [    9.927718] sky2 0000:04:00.0: irq 72 for MSI/MSI-X
> [    9.927856] sky2 0000:04:00.0: eth1: addr 00:26:18:00:1c:3a
> [   23.468135] sky2 0000:06:00.0: eth0: enabling interface
> [   25.709668] sky2 0000:04:00.0: eth1: enabling interface
> [   25.981841] sky2 0000:06:00.0: eth0: Link is up at 1000 Mbps, full 
> duplex, fl    ow control both
> [   27.418742] sky2 0000:04:00.0: eth1: Link is up at 100 Mbps, full 
> duplex, flo    w control rx
>
> 04:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8056 
> PCI-E Gigabit Ethernet Controller (rev 14)
> 05:00.0 IDE interface: Marvell Technology Group Ltd. 88SE6121 SATA II 
> Controller (rev b2)
> 06:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8056 
> PCI-E Gigabit Ethernet Controller (rev 14)
Seems I spoke too soon... Got the sky2 crash again early this morning 
after five days up.

Not sure how I can do any sort of bisect without narrowing down the 
possible culprits.
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