netdev - Re: tg3 NIC driver bug in 3.14.x under Xen [and 3 more messages]

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Message-ID: <21806.17257.971957.13215@mariner.uk.xensource.com>
Date:	Wed, 15 Apr 2015 11:54:33 +0100
From:	Ian Jackson <Ian.Jackson@...citrix.com>
To:	Michael Chan <mchan@...adcom.com>
CC:	Prashant <prashant@...adcom.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	"David Vrabel" <david.vrabel@...rix.com>,
	Thadeu Lima de Souza Cascardo <cascardo@...ux.vnet.ibm.com>,
	Vlad Yasevich <vyasevich@...il.com>,
	<xen-devel@...ts.xensource.com>, <netdev@...r.kernel.org>
Subject: Re: tg3 NIC driver bug in 3.14.x under Xen [and 3 more messages]

Prashant writes ("Re: tg3 NIC driver bug in 3.14.x under Xen [and 3 more messages]"):
> I tried to reproduce the problem on 32 bit 3.14.34 stable kernel 
> baremetal, with iommu=soft swiotlb=force but no luck, no drops or 
> errors. I did not try with Xen 64 bit yet. Btw I need a pcie analyzer 
> trace to confirm the problem. Is it feasible to capture at your end ?

In private correspondence with Prashant we have established that
Prashant was using a different kernel configuration.  Prashant
provided me with their kernel and module binaries, which work in my
environment.

I have also established that I can reproduce the problem with 3.14.37
(`iommu=soft swiotlb=force' baremetal => all rx wholly corrupted).

The kernel config I was using is here:
  http://logs.test-lab.xenproject.org/osstest/logs/50387/build-i386-pvops/build/config

As far as I am aware no-one at Broadcom has attempted a build and test
using my kernel config.

Thanks,
Ian.
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